Community discussions

Search found 458 matches

  • 1
  • 2
by aaa
Thu Sep 16, 2010 9:55 am
Forum: RouterBOARD hardware
Topic: NEW RB711
Replies: 110
Views: 28760

Re: NEW RB711

Yes, but more difficult like 411 :))
by aaa
Thu Sep 16, 2010 9:52 am
Forum: RouterBOARD hardware
Topic: RB 450 - Bad Capacitor / again
Replies: 6
Views: 2594

Re: RB 450 - Bad Capacitor / again

Hi, with PCB holes and TH capacitors everything is ok. Your soldering-iron is not enough power. This Caps connected to ground layer and power layer and provide good heat dissipate ability. Use 45W or higher power soldering-iron to replace this caps. Regarding your second problem description testify ...
by aaa
Wed Sep 15, 2010 10:11 am
Forum: RouterBOARD hardware
Topic: R52Hn heat/problems
Replies: 20
Views: 4045

Re: R52Hn heat/problems

With 0 ohms resistor swich 5V power source and solder external power source wires in located place. See attached picture. Don't mix 5V polarity! Don't exceed 5V! In that way you reduce heat dissipation from card.
by aaa
Tue Sep 14, 2010 3:34 pm
Forum: Wireless Networking
Topic: UFL male to MMCX Connectors or change the pigtail
Replies: 10
Views: 3639

Re: UFL male to MMCX Connectors or change the pigtail

Write to sales@mikrotik.com I think he can offer necessary parts.You can easy put it with soldering-iron.
by aaa
Tue Sep 14, 2010 11:16 am
Forum: Wireless Networking
Topic: UFL male to MMCX Connectors or change the pigtail
Replies: 10
Views: 3639

Re: UFL male to MMCX Connectors or change the pigtail

For me it's easy solder u.fl and one capacitor on 411. It cost only few cents. About attenuation you are right, typical u.fl pigtail los is close to 3dB@5GHz , MMCX is lightly better.
by aaa
Tue Sep 14, 2010 9:12 am
Forum: RouterBOARD hardware
Topic: RB1100 jumping to kernel code
Replies: 6
Views: 2184

Re: RB1100 jumping to kernel code

Can you test memory in BIOS? Hit any key and then "t"
by aaa
Tue Sep 14, 2010 8:28 am
Forum: Wireless Networking
Topic: Mesh Antennas for R52Hn Recommendations.
Replies: 2
Views: 666

Re: Mesh Antennas for R52Hn Recommendations.

2,4GHz omni you can't find so small and I am not sure about 5GHz. Omni antenna size is directly related to antenna frequency and antenna gain.
by aaa
Fri Sep 10, 2010 3:18 pm
Forum: Wireless Networking
Topic: FOR UAV AIRPLANES NEED VIDEO TRANSMISSION EQUIPMENTS
Replies: 5
Views: 1409

Re: FOR UAV AIRPLANES NEED VIDEO TRANSMISSION EQUIPMENTS

How many power provide your airplane? What is airplane bearing capacity? Most 5GHz omni antenna have narrow E-Plane beam width. I think more suitable is 900MHz or 2,4GHz band.
by aaa
Fri Sep 10, 2010 8:42 am
Forum: Wireless Networking
Topic: Panel Antenna v/s Grid Antenna
Replies: 5
Views: 1538

Re: Panel Antenna v/s Grid Antenna

Difference is only antenna pattern. Grid antenna has more narrow.
by aaa
Wed Sep 08, 2010 9:05 am
Forum: RouterBOARD hardware
Topic: Rb14 and power
Replies: 6
Views: 1110

Re: Rb14 and power

My mistake, there is 5A power regulator. If you see 1084 label on power regulators you can use four R52Hn
by aaa
Tue Sep 07, 2010 3:58 pm
Forum: RouterBOARD hardware
Topic: RB 493 or RB 433 witch 3 R52Hn?
Replies: 3
Views: 951

Re: RB 493 or RB 433 witch 3 R52Hn?

It's no good. Bad heat dissipation and possible bad contact in mPCI socket.
by aaa
Tue Sep 07, 2010 8:36 am
Forum: RouterBOARD hardware
Topic: Rb14 and power
Replies: 6
Views: 1110

Re: Rb14 and power

You are right Tom, but last two or three years RB14 comes with 3A regulator - that mean 1,5A ( 5W ) for each mPCI or 3A (10W ) for each if you use two wireless connected to own regulator. And of course RB14 support PCI bus without 5V.
by aaa
Mon Sep 06, 2010 8:56 am
Forum: RouterBOARD hardware
Topic: R52Hn heat/problems
Replies: 20
Views: 4045

Re: R52Hn heat/problems

This card take 2,1A@3,3V if you stack them you make many heat in very small place. You need just additional fan system.
by aaa
Fri Sep 03, 2010 2:13 pm
Forum: Wireless Networking
Topic: RB411 question
Replies: 2
Views: 667

Re: RB411 question

If you use one ssid , you can use one wireless card with two antenna.
by aaa
Fri Sep 03, 2010 9:06 am
Forum: RouterBOARD hardware
Topic: R52Hn heat/problems
Replies: 20
Views: 4045

Re: R52Hn heat/problems

What kind of antenna you use with R52Hn?
by aaa
Thu Sep 02, 2010 12:31 pm
Forum: RouterBOARD hardware
Topic: RB750 problem
Replies: 3
Views: 1403

Re: RB750 problem

Bad Block Management Devices with Bad Blocks have the same quality level and the same AC and DC characteristics as devices where all the blocks are valid. A Bad Block does not affect the performance of valid blocks because it is isolated from the bit line and common source line by a select transisto...
by aaa
Tue Aug 31, 2010 4:48 pm
Forum: RouterBOARD hardware
Topic: RB800+RB/502 RB Hang
Replies: 12
Views: 4268

Re: RB800+RB/502 RB Hang

Yes, without this fix with RB600,RB800 possible problem with PCI bus when daughterboard wireless is used. Just put it like on picture or contact with local Mikrotik dealer for assistance.
by aaa
Tue Aug 31, 2010 9:03 am
Forum: RouterBOARD hardware
Topic: RB 750 DEAD ???
Replies: 9
Views: 3239

Re: RB 750 DEAD ???

I think no, this capacitance can vary in big range without any problem.All new production use Suscon MG series - it provide three times longer life time and I hope quality can be much better.
by aaa
Mon Aug 30, 2010 3:41 pm
Forum: RouterBOARD hardware
Topic: RB532 and RB604
Replies: 3
Views: 770

Re: RB532 and RB604

RB532r5 provide 16,5W for extension card. Each R5H max power consumption is ~5W You need check total power consumption and I am not sure about RB532 CPU speed.
by aaa
Mon Aug 30, 2010 11:57 am
Forum: RouterBOARD hardware
Topic: RB 750 DEAD ???
Replies: 9
Views: 3239

Re: RB 750 DEAD ???

Is it Suscon SJ series capacitors?
by aaa
Mon Aug 30, 2010 11:30 am
Forum: RouterBOARD hardware
Topic: RB532 and RB604
Replies: 3
Views: 770

Re: RB532 and RB604

Yes, it's work. Tested with RB604 and four additional R52 and R52-350 wireless card.
by aaa
Mon Aug 30, 2010 11:16 am
Forum: RouterBOARD hardware
Topic: RB411-433 RJ45 port replacement source
Replies: 6
Views: 2548

Re: RB411-433 RJ45 port replacement source

No, for RB433 it's IP175C from IC+. For 411 it's KSZ8041 or AR8012. All this RB is simpple for repairing. I ask about dealer not regading warranty policy. If you are from Latvia, most Latvian MT dealer have accomplished engineering staff and necessary equpiment and offer after warranty repairing for...
by aaa
Fri Aug 27, 2010 3:13 pm
Forum: RouterBOARD hardware
Topic: RB411-433 RJ45 port replacement source
Replies: 6
Views: 2548

Re: RB411-433 RJ45 port replacement source

Hi! You not need replace 47F-1205BGYDNW2NL it's never burn after lightening. If it's not secret what's your MT dealer? Else do you make ground for your outdoor instalation?
by aaa
Thu Aug 26, 2010 11:59 am
Forum: Wireless Networking
Topic: 802.11n 2 radios each point.
Replies: 5
Views: 1111

Re: 802.11n 2 radios each point.

What mPCI to PCI adapters you use?
by aaa
Wed Aug 25, 2010 10:19 am
Forum: Wireless Networking
Topic: calibrating mikrotik voltage readings?
Replies: 1
Views: 569

Re: calibrating mikrotik voltage readings?

RB450G voltage monitor get only approx. value. Volatge reading offset is directly related to CPU load. You can try different RouterOS version and check what is more precise. All new RB version have more preicse voltage monitor.
by aaa
Wed Aug 25, 2010 9:44 am
Forum: RouterBOARD hardware
Topic: POE problem
Replies: 4
Views: 937

Re: POE problem

Mostly this diodes burn together with PHY ADM7001 after lightening.Some times burn only one of this diodes. Take multimeter check resistance between 1,2 pin and 3,6 ping if it's 150ohms or more - this swich can work. Or replase burned diode with any new 1A 100V schottky diode.
by aaa
Wed Aug 25, 2010 9:25 am
Forum: RouterBOARD hardware
Topic: RouterBOARD R52Hn miniPCI network adapter Antenna Question
Replies: 8
Views: 4116

Re: RouterBOARD R52Hn miniPCI network adapter Antenna Questi

Transmit and receive over two connectors in the same time slots use for MIMO (802.11n ) wireless connection in that way increase speed of data exchange between two R52Hn wireless cards.
There is more information
http://en.wikipedia.org/wiki/MIMO
by aaa
Tue Aug 24, 2010 9:43 am
Forum: RouterBOARD hardware
Topic: Why RB600 don´t have a Voltage Monitor?
Replies: 7
Views: 2340

Re: Why RB600 don´t have a Voltage Monitor?

It is hardware feature with software support. If there don't have necessary hardware you can't do anything with software :))
by aaa
Tue Aug 24, 2010 8:27 am
Forum: RouterBOARD hardware
Topic: POE problem
Replies: 4
Views: 937

Re: POE problem

On RB532r5 burned one of this diode ( D23 or D24 ). Replace diode or look for fast ethernet swich where RX TX pair are not DC shorted. Is it ether1 working on this RB?
by aaa
Tue Aug 24, 2010 8:18 am
Forum: RouterBOARD hardware
Topic: Dead RB750?
Replies: 10
Views: 3175

Re: Dead RB750?

Is it ACT led goes off after power on RB?
by aaa
Mon Aug 23, 2010 10:03 am
Forum: RouterBOARD hardware
Topic: Problematic eth1 on some 411AH
Replies: 1
Views: 607

Re: Problematic eth1 on some 411AH

Can you ask tower owner what else located on this tower. If it is some high power VHF equpiment (FM transmitters) - RF interference is possible. Use EMI choke at both sides of cable. As close as possible with 100Base-T device.
by aaa
Mon Aug 23, 2010 8:58 am
Forum: RouterBOARD hardware
Topic: Near all my RB532 show ethernet tx/rx drops
Replies: 2
Views: 865

Re: Near all my RB532 show ethernet tx/rx drops

Try put RouterOS 2.9.51 on all RB532
by aaa
Mon Aug 23, 2010 8:56 am
Forum: RouterBOARD hardware
Topic: RouterBOARD R52Hn miniPCI network adapter Antenna Question
Replies: 8
Views: 4116

Re: RouterBOARD R52Hn miniPCI network adapter Antenna Questi

On R52Hn wireless card both antenna connector are Main. This is only one wireless NIC and you can use only one corresponded modulation and band.
by aaa
Wed Aug 18, 2010 2:18 pm
Forum: RouterBOARD hardware
Topic: Old boards ex RB153 LED controle
Replies: 2
Views: 559

Re: Old boards ex RB153 LED controle

You can use only user LED. Other LEDs connected to mPCI and can use only with associated mPCI device.
by aaa
Wed Aug 18, 2010 9:00 am
Forum: RouterBOARD hardware
Topic: is TE100-S4PCI compatible with mikrotik
Replies: 4
Views: 692

Re: is TE100-S4PCI compatible with mikrotik

Yes, four independent NIC
by aaa
Mon Aug 16, 2010 12:10 pm
Forum: RouterBOARD hardware
Topic: is TE100-S4PCI compatible with mikrotik
Replies: 4
Views: 692

Re: is TE100-S4PCI compatible with mikrotik

I think it's not supported by RouterOS. Use RB44 or RB44GV.
by aaa
Fri Aug 13, 2010 1:20 pm
Forum: RouterBOARD hardware
Topic: rb532 often switched on and off
Replies: 7
Views: 1152

Re: rb532 often switched on and off

Try swich to low voltage mode. Test with 22V-10V PSU
by aaa
Wed Aug 11, 2010 1:15 pm
Forum: RouterBOARD hardware
Topic: RB800 heat problem advisory
Replies: 58
Views: 18198

Re: RB800 heat problem advisory

First test only with four onboard wireless and then add additional daughterboard with other wireless.
by aaa
Thu Aug 05, 2010 9:12 am
Forum: RouterBOARD hardware
Topic: RB450 Capacitors problem?
Replies: 120
Views: 41843

Re: RB450 Capacitors problem?

470uF@16V is OK. Check again your soldering carefully that you not make any shorts. Else try replace that one cap. what located nearly from swich chip.
by aaa
Wed Aug 04, 2010 5:42 pm
Forum: RouterBOARD hardware
Topic: RB411 Ethernet Freezes (No receive)
Replies: 75
Views: 25517

Re: RB411 Ethernet Freezes (No receive)

Do you have grounded devices at both sides of LAN cable. Check each device ground with this tester http://www.sourcingmap.com/larger_image.php?products_image=ux_a09101300ux0284_ux_&p=48857&products_imageType=jpg I got many troble from LAN connected customers if theirs PC not grounded. It have some 1...
by aaa
Wed Aug 04, 2010 10:36 am
Forum: Wireless Networking
Topic: About interference
Replies: 5
Views: 987

Re: About interference

Depends on TX-power , spectral mask , frequency spacing and attenuation between antenna.
by aaa
Wed Aug 04, 2010 9:13 am
Forum: RouterBOARD hardware
Topic: Time Travel with the RB133
Replies: 5
Views: 877

Re: Time Travel with the RB133

Can you make and post photo?
by aaa
Tue Aug 03, 2010 10:40 am
Forum: RouterBOARD hardware
Topic: Faulty ethernet port on RB411?
Replies: 4
Views: 1501

Re: Faulty ethernet port on RB411?

RB411 have only one ethernet port. Can you test it with other device like PC , laptop or fast ethernet swich.
by aaa
Tue Aug 03, 2010 9:01 am
Forum: RouterBOARD hardware
Topic: Time Travel with the RB133
Replies: 5
Views: 877

Re: Time Travel with the RB133

What happen with your RB433 :)) ?
by aaa
Thu Jul 29, 2010 9:13 am
Forum: RouterBOARD hardware
Topic: New RB 750G does not work
Replies: 3
Views: 899

Re: New RB 750G does not work

There no Ethernet activity LED. Just PWR , ACT and port LEDs. If ACT led not turn off RB hang in BIOS stage.
by aaa
Wed Jul 28, 2010 10:19 am
Forum: RouterBOARD hardware
Topic: Routerboard 433 and 411 series lockups on power blips
Replies: 3
Views: 995

Re: Routerboard 433 and 411 series lockups on power blips

Just connect PSU to RB and make ~1sec. power outage - on...off...on...off many time if RB power hang up that mean this RB have inadequate capacitor. All RB411U and RB433r3 have new power design.
by aaa
Tue Jul 27, 2010 4:11 pm
Forum: RouterBOARD hardware
Topic: RouterOS x86 IRQ Query/Problem
Replies: 6
Views: 872

Re: RouterOS x86 IRQ Query/Problem

Ok, may be your problem is not power related but your calculation ir wrong. OK take 18W @ 3,3V = 5,45A RB14 use LDO and 5V like power source. 5,45 x 5V = 27,25W. Try change RB14 , R52Hn and PCI slot may be it's broken.
by aaa
Tue Jul 27, 2010 11:23 am
Forum: RouterBOARD hardware
Topic: RouterOS x86 IRQ Query/Problem
Replies: 6
Views: 872

Re: RouterOS x86 IRQ Query/Problem

2xR5H= 3,2A ; 2xR52Hn=4,24A Total= 7,44A x 5V = 37,2W You overload your PC. Else check LDO on each RB14, some old batch have 3A LDO that mean 1,5A for each mPCI. Try reduce TX power on all wireless cards to few dBm and test again.
by aaa
Mon Jul 26, 2010 4:04 pm
Forum: Wireless Networking
Topic: What can i do if the Password all was gone?
Replies: 7
Views: 817

Re: What can i do if the Password all was gone?

Just reset configuration - short two circle pads when power on RB.
by aaa
Mon Jul 26, 2010 1:18 pm
Forum: RouterBOARD hardware
Topic: RouterOS x86 IRQ Query/Problem
Replies: 6
Views: 872

Re: RouterOS x86 IRQ Query/Problem

Hi, what wireless cards and mPCI adapter you use ( RB11,RB14 or RB18 )? How much Amps@5V you have on PCI bus. I am not think that is IRQ related problem.
by aaa
Mon Jul 26, 2010 8:28 am
Forum: RouterBOARD hardware
Topic: RB800+RB/502 RB Hang
Replies: 12
Views: 4268

Re: RB800+RB/502 RB Hang

Did you put full temp. fix on RB800? OK I try repeat it on my table.
by aaa
Wed Jul 21, 2010 2:25 pm
Forum: RouterBOARD hardware
Topic: RB800+RB/502 RB Hang
Replies: 12
Views: 4268

Re: RB800+RB/502 RB Hang

Yes, they are can be symptoms daughterboard connector malfunction. First - test all 4 wireless in RB800 without daughterboard device. If test success add full temp. fix and check is it your RB502 have this fix - see attached pic. All RB502 shiped les then ~one year ago have this fix. Old RB502 don't...
by aaa
Wed Jul 21, 2010 12:27 pm
Forum: Wireless Networking
Topic: R52Hn strange readings
Replies: 36
Views: 10122

Re: R52Hn strange readings

You mean use only one Chain and one antenna on each side? Do you disable other chain on ht control panel? Try change both sides to vertical polarization. Else use spectral scan not frequency usage. Spectral scan recognize any signal like single carrier, FSK modulation. Frequency usage just 802.11a/n
by aaa
Tue Jul 20, 2010 2:06 pm
Forum: RouterBOARD hardware
Topic: RB800+RB/502 RB Hang
Replies: 12
Views: 4268

Re: RB800+RB/502 RB Hang

With some RB800 I have same hang up on my table in room temp. with wireless attached. Try this temp. fix if not help I have one more fix for RB502 :))
by aaa
Tue Jul 20, 2010 1:17 pm
Forum: Wireless Networking
Topic: R52Hn strange readings
Replies: 36
Views: 10122

Re: R52Hn strange readings

What antenna you use? Is it Chain 0 antenna work in vertical polarization and Chain 1 antenna in horizontal polarization? Do you use RouterOS spectrum analyzer to find clear frequency? I test 23dBi panels on 10km distance with bad success.
by aaa
Tue Jul 20, 2010 9:15 am
Forum: Wireless Networking
Topic: R52Hn strange readings
Replies: 36
Views: 10122

Re: R52Hn strange readings

[admin@xxx] /interface wireless> monitor w status: connected-to-ess band: 5ghz-11n frequency: 5540MHz tx-rate: "243.0Mbps-HT" rx-rate: "243.0Mbps-HT" ssid: "xxx" bssid: 00:0C:42:3A:D3:0B radio-name: "000C423AD30B" signal-strength: -64dBm tx-signal-strength: -63dBm noise-floor: -116dBm signal-to-nois...
by aaa
Tue Jul 20, 2010 9:09 am
Forum: Wireless Networking
Topic: R52Hn strange readings
Replies: 36
Views: 10122

Re: R52Hn strange readings

Link distance is ~4km. TX power set to default. [admin@xxx] /interface wireless> print advanced Flags: X - disabled, R - running 0 R name="wlan1" mtu=1500 mac-address=00:0C:42:3A:D3:13 arp=enabled disable-running-check=no interface-type=Atheros 11N radio-name="000C423AD313" mode=station ssid="xxx" a...
by aaa
Tue Jul 20, 2010 9:00 am
Forum: RouterBOARD hardware
Topic: RB800 heat problem advisory
Replies: 58
Views: 18198

Re: RB800 heat problem advisory

You can easy recognize old batch and new batch by U15 chip label. If you see CKV05 else TI logo on it - this is old batch and need soldering fix. If you see other U15 label - problem is fixed by repace chip and you not need fix anything. Normis, please can you tell us, how can we recognize RB800 fro...
by aaa
Tue Jul 20, 2010 8:45 am
Forum: RouterBOARD hardware
Topic: RB800+RB/502 RB Hang
Replies: 12
Views: 4268

Re: RB800+RB/502 RB Hang

by aaa
Mon Jul 19, 2010 2:31 pm
Forum: Wireless Networking
Topic: R52Hn strange readings
Replies: 36
Views: 10122

Re: R52Hn strange readings

I have same signal strength readings. But link is stable and true output is close to 100mbit. I think it is some kind of AR9220 chipset bug. I never see this on AR5414
by aaa
Mon Jul 19, 2010 8:52 am
Forum: RouterBOARD hardware
Topic: RB433 repairing...(No able to power up)
Replies: 3
Views: 1002

Re: RB433 repairing...(No able to power up)

Not always, power controler not dead by itself.
by aaa
Fri Jul 16, 2010 3:09 pm
Forum: RouterBOARD hardware
Topic: compatibility problems with ECI products
Replies: 1
Views: 465

Re: compatibility problems with ECI products

Can you give some link to ECI product line and specify models what you use?
by aaa
Thu Jul 15, 2010 1:19 pm
Forum: RouterBOARD hardware
Topic: Rb411, DCD or DTR enabled ?
Replies: 3
Views: 678

Re: Rb411, DCD or DTR enabled ?

Most RB use only RX , TX and GND. Full RS232 signaling available only on RB200
by aaa
Thu Jul 15, 2010 10:16 am
Forum: Wireless Networking
Topic: Ubiquiti SR71-A, SR71-15, need consultation
Replies: 4
Views: 1857

Re: Ubiquiti SR71-A, SR71-15, need consultation

HT settings responsible about what RX/TX path is used. By theory it is enough enable any chain RX and TX and you can make 802.11g connection. In practic I not test this cards yet.
by aaa
Thu Jul 15, 2010 9:04 am
Forum: Wireless Networking
Topic: R52H Failure
Replies: 15
Views: 1979

Re: R52H Failure

If there is divesity swich or PA problem you can't make link at all for this distance. 10dB is very small value, do you add signal attenuation in pigtails in your calculation?
by aaa
Wed Jul 14, 2010 2:51 pm
Forum: Wireless Networking
Topic: normal signal low ccq
Replies: 4
Views: 1297

Re: normal signal low ccq

-90 signal strength can be problem. Disconect all clients with signal strength worse then -75 and test again.
by aaa
Wed Jul 14, 2010 9:35 am
Forum: RouterBOARD hardware
Topic: RB450 Capacitors problem?
Replies: 120
Views: 41843

Re: RB450 Capacitors problem?

Of course CPU freq. is directly related with CPU heat disapation but in this case use 12V PSU make greater sense.
by aaa
Tue Jul 13, 2010 1:47 pm
Forum: RouterBOARD hardware
Topic: 4 port ethernet PCI card...
Replies: 6
Views: 2896

Re: 4 port ethernet PCI card...

Uniterm Direct have RB44GV on stock. It's 4 port gbit NIC with Via gbit PHY
by aaa
Mon Jul 12, 2010 5:39 pm
Forum: RouterBOARD hardware
Topic: DC Power controller....
Replies: 6
Views: 1207

Re: DC Power controller....

Many company offer relay control over TCP/IP for example this http://dataprobe.com/coe8_contacts_over ... index.html
For me better is all in one.
by aaa
Mon Jul 12, 2010 2:46 pm
Forum: RouterBOARD hardware
Topic: DC Power controller....
Replies: 6
Views: 1207

Re: DC Power controller....

More realistic is some 8-16 port Routerboard (Swich ) with software controled POE output and software selectable 24V or 48V output voltage.
by aaa
Sat Jul 10, 2010 1:28 pm
Forum: RouterBOARD hardware
Topic: RB-1100 Port problems, and performance problems
Replies: 61
Views: 18993

Re: RB-1100 Port problems, and performance problems

Did you test your Cisco Catalyst 3500 and RB1100 port 11-13 enable auto-negotiation and make gbit connection over twisted pair.
by aaa
Thu Jul 08, 2010 8:08 pm
Forum: RouterBOARD hardware
Topic: Dead ethernet ports
Replies: 2
Views: 727

Re: Dead ethernet ports

Hi, I think it's broken ADM5120 No reason repair this RB - PCB is sensitive to regain reflow process and lost some via. Like wireless station + AP it is not so good - is not enough memory. RB532 is much better :))
by aaa
Fri Jul 02, 2010 4:16 pm
Forum: RouterBOARD hardware
Topic: RB450G hardware repair problems
Replies: 6
Views: 2171

Re: RB450G hardware repair problems

If you have warranty send RB by warranty to your distributor.
by aaa
Fri Jul 02, 2010 12:59 pm
Forum: RouterBOARD hardware
Topic: RB450G hardware repair problems
Replies: 6
Views: 2171

Re: RB450G hardware repair problems

How far I remember this test not work for Gbit RB . If you got lightening or static electricity just replace AR8316 swich chip.
by aaa
Fri Jun 25, 2010 6:26 pm
Forum: RouterBOARD hardware
Topic: RB750 hangs frequently
Replies: 13
Views: 4787

Re: RB750 hangs frequently

I note this some times too. It's software bug. Check with different BIOS version. i say that because i experince that problem many times ... some rb750 work fine as home router with 0.5Amps ... but some don't ... you can test it like this: log in with winbox ... go to files ... upload a file ... if ...
by aaa
Tue Jun 22, 2010 3:33 pm
Forum: Wireless Networking
Topic: signal good ccq excellent but very high latency
Replies: 3
Views: 887

Re: signal good ccq excellent but very high latency

On 2,4GHz posible only two sectros otherwise you interfere with each other. It's time to upgrade to 5GHz band.
by aaa
Mon Jun 21, 2010 10:00 am
Forum: RouterBOARD hardware
Topic: RB750 hangs frequently
Replies: 13
Views: 4787

Re: RB750 hangs frequently

For 750 12V;0,5A PSU is good enough. For 750G need higher power PSU
by aaa
Fri Jun 18, 2010 5:05 pm
Forum: Wireless Networking
Topic: ask about LED ether RB433 blinking
Replies: 3
Views: 1153

Re: ask about LED ether RB433 blinking

That's mean swich chip ir burned.
by aaa
Fri Jun 18, 2010 4:03 pm
Forum: RouterBOARD hardware
Topic: Strange problem setting up 450G
Replies: 7
Views: 1556

Re: Strange problem setting up 450G

What PSU you use? Is it blue LED stable on?
by aaa
Thu Jun 17, 2010 3:20 pm
Forum: Wireless Networking
Topic: signal is good but ccq drop
Replies: 5
Views: 2293

Re: signal is good but ccq drop

It is interference with some other RF signal. Use some portable spectrum analyser or RouterOS spectrum analyser feature.
by aaa
Thu Jun 17, 2010 1:51 pm
Forum: RouterBOARD hardware
Topic: Burned ethernet ports
Replies: 2
Views: 932

Re: Burned ethernet ports

For 333 it's KZS8041, for 433 - IP175C and for 133 - ADM5120 repairing is not resonable. Use good grounding and shielded cables and you don't meet this problems.
by aaa
Wed Jun 16, 2010 5:38 pm
Forum: Wireless Networking
Topic: 37Km Backhaul link with 29Db Jirous Dual-polarized parabolic
Replies: 30
Views: 6342

Re: 37Km Backhaul link with 29Db Jirous Dual-polarized parab

Do you test link with enable nstreme?
by aaa
Tue Jun 15, 2010 5:58 pm
Forum: Wireless Networking
Topic: ask about LED ether RB433 blinking
Replies: 3
Views: 1153

Re: ask about LED ether RB433 blinking

Is it blue LED stable on. Do you hear single then double beep? Try power on without mPCI wireless card.
by aaa
Mon Jun 14, 2010 9:39 am
Forum: RouterBOARD hardware
Topic: RB750G and PoE
Replies: 11
Views: 5440

Re: RB750G and PoE

In gbit POE pins 4,5,7,8 shared between power source and balanced signal. Same like in SatTV LNB power share coax cable with unbalanced RF signal.
by aaa
Mon Jun 14, 2010 9:29 am
Forum: RouterBOARD hardware
Topic: R5H problems
Replies: 72
Views: 17321

Re: R5H problems

All devices have 1 year warranty. If you have it better way is send cards back to supplier. R5H repairing is very complicated. Hi mikrotik Are we able to know what type of diode it is I've had 3 R5h's sitting in my 'dead bin' for a while now and thinking it was my fault that they had blown, but now ...
by aaa
Mon Jun 14, 2010 9:18 am
Forum: RouterBOARD hardware
Topic: R52Hn squeak
Replies: 4
Views: 1123

Re: R52Hn squeak

I hear this on R5H. This squeak modulate with packet rate. I don't think that is something bad only if you use wireless in your bedroom :))
by aaa
Fri Jun 11, 2010 5:18 pm
Forum: RouterBOARD hardware
Topic: RB750 hangs frequently
Replies: 13
Views: 4787

Re: RB750 hangs frequently

Do you use latest RouterOS and BIOS? I mean 4.10
by aaa
Fri Jun 11, 2010 2:37 pm
Forum: RouterBOARD hardware
Topic: RB750G and PoE
Replies: 11
Views: 5440

Re: RB750G and PoE

Can you make gbit connection with for example RB600, RB800 or RB250G with this POE :))
http://www.routerboard.com/index.php?showProduct=86
Most pasive POE not support gbit mode.
by aaa
Thu Jun 10, 2010 1:57 pm
Forum: RouterBOARD hardware
Topic: RB750G and PoE
Replies: 11
Views: 5440

Re: RB750G and PoE

by aaa
Wed Jun 09, 2010 10:50 am
Forum: RouterBOARD hardware
Topic: b/g 2.4 Radio with good quality?
Replies: 2
Views: 824

Re: b/g 2.4 Radio with good quality?

Check each antenna is it DC shorted or not. If not add Lightning Protector. There is measurement examples.
http://wiki.mikrotik.com/wiki/Manual:Wi ... iagnostics
Else you need feed each grounding wire to the bottom of mast and connect to additional grounding because it seems slightly smutty.
by aaa
Wed Jun 09, 2010 10:19 am
Forum: RouterBOARD hardware
Topic: RB800 big problem
Replies: 133
Views: 22176

Re: RB800 big problem

Did you see any 12v fan on any new laptop computer?! If you tell something you must be sure that your informatin is right otherwise you sound like total beginner. i was amazed...why 5 or 3,3 voltage been chosen???? 12v is standard.... rb800 is very hot even if 600MHz frequency is chosen - it is situ...
by aaa
Tue Jun 08, 2010 11:05 am
Forum: RouterBOARD hardware
Topic: RB800 big problem
Replies: 133
Views: 22176

Re: RB800 big problem

Yes, just change CPU freq. and reboot RB.
by aaa
Fri Jun 04, 2010 2:57 pm
Forum: Wireless Networking
Topic: R52H Failure
Replies: 15
Views: 1979

Re: R52H Failure

Your antenna working like big capacitor charge energy until it exceed DC blocking capacitor max. voltage and discharge to diversity swich what actualy is rectifier bridge. Some times I note this cases in winter at 0 humidity without any thunderstorm. There are more about divesity swich. www.microsem...
by aaa
Fri Jun 04, 2010 2:10 pm
Forum: Wireless Networking
Topic: R52H Failure
Replies: 15
Views: 1979

Re: R52H Failure

That's mean your cards acquire high voltage spike (more then 50V ) on antenna central pole. In addition RB grounding use DC shorted antenna or RF surge protector to protect your cards.
by aaa
Fri Jun 04, 2010 1:03 pm
Forum: Wireless Networking
Topic: R52H Failure
Replies: 15
Views: 1979

Re: R52H Failure

Check this card diversity swich with multimeter method.
http://wiki.mikrotik.com/wiki/Manual:Wi ... iagnostics
by aaa
Thu Jun 03, 2010 11:58 am
Forum: RouterBOARD hardware
Topic: RB800 big problem
Replies: 133
Views: 22176

Re: RB800 big problem

What wireless card you use? I am not sure that "extensive data loss" problem related with case inside temperature. Can you measure inside temp. with some weather thermometer with external sensor.
by aaa
Wed Jun 02, 2010 10:01 am
Forum: RouterBOARD hardware
Topic: RB800 ether problem
Replies: 9
Views: 1978

Re: RB800 ether problem

Why you rename ethernet interfaces? Do you have link LEDs on when no cable connected? It's remind ethernet swich port damage by lightning :))
by aaa
Wed Jun 02, 2010 8:44 am
Forum: RouterBOARD hardware
Topic: RB1100 small built material issue
Replies: 10
Views: 1638

Re: RB1100 small built material issue

Use qualitative PH2 screwdriver to open it. About screw tighten you are right it's too strong.
by aaa
Mon May 31, 2010 3:49 pm
Forum: Wireless Networking
Topic: frustration all around
Replies: 31
Views: 2894

Re: frustration all around

You have too low signal strength for 5GHz-turbo. Use regular 20MHz channel wide and you get more stable link.
by aaa
Mon May 31, 2010 7:32 am
Forum: RouterBOARD hardware
Topic: There is any way to put 30v on rb450g ?
Replies: 2
Views: 775

Re: There is any way to put 30v on rb450g ?

Or add 4-5 pcs 1A diodes in serial in that way you get few volts drop on diodes circuit.
by aaa
Fri May 28, 2010 9:57 am
Forum: RouterBOARD hardware
Topic: 7 of 10 433 UAH Routerboards failing
Replies: 8
Views: 1271

Re: 7 of 10 433 UAH Routerboards failing

Can you give failing RB serinal nubers?
by aaa
Fri May 28, 2010 9:44 am
Forum: RouterBOARD hardware
Topic: RB450 Capacitors problem?
Replies: 120
Views: 41843

Re: RB450 Capacitors problem?

No, just 4000h at 105C Standards IEC 60384-4 Long Life Grade 40/105/56, in accordance with CECC 30 301-809 Capacitance range 150–22000 μF Capacitance tolerance –20 to +20% Rated voltage 35–450 VDC Temperature range –40 to +105°C Leakage current, IRL (μA) 0.003 (μA) x CR (μF) x UR (V) Operational lif...
by aaa
Fri May 28, 2010 8:07 am
Forum: Wireless Networking
Topic: Multiple power supplies
Replies: 47
Views: 12622

Re: Multiple power supplies

Since I cange all my 18V PSU to 24V I don't feel requirement for redundant power supply solution :))
by aaa
Fri May 28, 2010 7:54 am
Forum: Wireless Networking
Topic: RB433 with 2 Ubiquiti XR radios and indoor case
Replies: 2
Views: 855

Re: RB433 with 2 Ubiquiti XR radios and indoor case

Change one of this card to regular thickness card for example R52-350.
by aaa
Thu May 27, 2010 2:14 pm
Forum: Wireless Networking
Topic: Multiple power supplies
Replies: 47
Views: 12622

Re: Multiple power supplies

If you not exceed Absolute Maximum Ratings it's very stable. Regading ralay devices all this devices have bad MTBF rate. And I am not use it for any serious application.
by aaa
Thu May 27, 2010 10:54 am
Forum: RouterBOARD hardware
Topic: RB450 Capacitors problem?
Replies: 120
Views: 41843

Re: RB450 Capacitors problem?

Lead spacing and package is too big. Use 470uF - 680uF and 6,3V - 16V capacitors with 3,5mm lead spacing.It's posible use 5mm lead spacing but need aditional lead forming. Don't forget about polarity.
by aaa
Wed May 26, 2010 2:11 pm
Forum: Wireless Networking
Topic: Multiple power supplies
Replies: 47
Views: 12622

Re: Multiple power supplies

Just stick two simple power supplies in paralel and connect PSU positive output via diode and you have redundant feature.
by aaa
Tue May 25, 2010 10:22 am
Forum: Wireless Networking
Topic: R52 Card defektive ???
Replies: 4
Views: 914

Re: R52 Card defektive ???

I am no think that card is broken RX/TX signal level is very close.What is 2,4GHz link distance? You need get -60 -70 signal level for good connection. Check Line-of-sight and equipiment ( pigtails, cables, antenna polarization ).
by aaa
Mon May 24, 2010 4:04 pm
Forum: RouterBOARD hardware
Topic: RB800 big problem
Replies: 133
Views: 22176

Re: RB800 big problem

In RouterOS 4.9 temperature is still higher like it is in reality. I have 46C few seconds after power on. I think it have some +16C offset. Same about voltage - RB show 41V , on RB power Jack I have 47V
by aaa
Mon May 24, 2010 9:28 am
Forum: Wireless Networking
Topic: R52 Card defektive ???
Replies: 4
Views: 914

Re: R52 Card defektive ???

Do you have signal loss on RX and TX or only on TX? R52 not support 25dBm output you just decrease your link bandwidth if you overload card.
by aaa
Fri May 21, 2010 8:53 am
Forum: RouterBOARD hardware
Topic: R5H Cards overheating???
Replies: 5
Views: 826

Re: R5H Cards overheating???

Yes, this is known issue. Write to dealer or rma@mikrotik.com and explain your problems with this cards.
by aaa
Thu May 20, 2010 10:24 am
Forum: RouterBOARD hardware
Topic: Low LAN Throughput
Replies: 3
Views: 707

Re: Low LAN Throughput

Can you print out wireless status when you sending data over R52Hn wireless card. It seeams more suitable subject is Low wireless Throughput and more information you can find under this topic
http://forum.mikrotik.com/viewtopic.php?f=7&t=32143
by aaa
Thu May 20, 2010 8:08 am
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 287255

Re: 802.11n

Same. Normis can you check what's happen with attachment?
by aaa
Mon May 17, 2010 9:05 am
Forum: RouterBOARD hardware
Topic: 433ah burnouts
Replies: 2
Views: 841

Re: 433ah burnouts

by aaa
Fri May 14, 2010 2:13 pm
Forum: Wireless Networking
Topic: Best tunning for 802.11n when good signal
Replies: 3
Views: 1016

Re: Best tunning for 802.11n when good signal

Reduce TX power on both sides that your RX/TX signal pass in -50 -70 range. Else try change one antenna polarization on each side.
by aaa
Fri May 14, 2010 10:24 am
Forum: RouterBOARD hardware
Topic: R52Hn real life throughput?
Replies: 2
Views: 1438

Re: R52Hn real life throughput?

I already brake 100mbit margin with R52h wireless cards.May be problem is in your ath9k drivers or wireless setup.
http://forum.mikrotik.com/download/file.php?id=4066
http://forum.mikrotik.com/viewtopic.php ... &start=600
by aaa
Fri May 14, 2010 8:28 am
Forum: RouterBOARD hardware
Topic: RB600A Overloaded CPU?
Replies: 8
Views: 1796

Re: RB600A Overloaded CPU?

Use 533MHz cpu clock and you can get some 20-30 mbit more traffic.
by aaa
Thu May 13, 2010 2:06 pm
Forum: RouterBOARD hardware
Topic: RB433 doesn't detect mPCI
Replies: 5
Views: 1170

Re: RB433 doesn't detect mPCI

Depend what symptoms you have. Write to support@mikrotik.com I hope he can give you complete solution.
by aaa
Thu May 13, 2010 11:07 am
Forum: RouterBOARD hardware
Topic: RB433 doesn't detect mPCI
Replies: 5
Views: 1170

Re: RB433 doesn't detect mPCI

Not exactly :))
by aaa
Thu May 13, 2010 9:49 am
Forum: RouterBOARD hardware
Topic: Midspan Power for RB600A
Replies: 3
Views: 821

Re: Midspan Power for RB600A

I have Netgear ProSafe GS724TPS smart 802.3af swich. http://www.netgear.com/Products/Switches/SmartSwitches/GS724TP.aspx I put few wireless card in mPCI slots and test in 30W POE ports and 15,4W POE ports and RB turns on and don't have any problems. If two devices designed according one standard but...
by aaa
Thu May 13, 2010 9:36 am
Forum: RouterBOARD hardware
Topic: RB433 doesn't detect mPCI
Replies: 5
Views: 1170

Re: RB433 doesn't detect mPCI

Do you test all mPCI slots? Try push and hold CPU when you turn on RB and booting RouterOS
by aaa
Wed May 12, 2010 9:25 pm
Forum: RouterBOARD hardware
Topic: 2 SR2’s and 1 SR5 on a RB433AH Question.
Replies: 6
Views: 1214

Re: 2 SR2’s and 1 SR5 on a RB433AH Question.

24V x 0.8A =19.2W I think it's enough for RB433 with three high power cards.
by aaa
Wed May 12, 2010 9:18 pm
Forum: RouterBOARD hardware
Topic: RB600A Overloaded CPU?
Replies: 8
Views: 1796

Re: RB600A Overloaded CPU?

Use gbit POE to make gbit connection.
by aaa
Wed May 12, 2010 9:34 am
Forum: RouterBOARD hardware
Topic: 2 SR2’s and 1 SR5 on a RB433AH Question.
Replies: 6
Views: 1214

Re: 2 SR2’s and 1 SR5 on a RB433AH Question.

Yes, that is declare in documentation but actualy it's higher. There is some mistake " Output 24VDC at .8A 12W " can you check it on PSU?
by aaa
Wed May 12, 2010 9:25 am
Forum: RouterBOARD hardware
Topic: Midspan Power for RB600A
Replies: 3
Views: 821

Re: Midspan Power for RB600A

In documentation he denote 36W per port. It must be enaugh for RB600 with medium load. I think there is some compatibility problems.

http://www.microsemi.com/PowerDsine/Pro ... ations.asp
by aaa
Tue May 11, 2010 3:16 pm
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 287255

Re: 802.11n

Hi, nice results. Can you test this link with 50-100 customers load without taffic restriction ?
by aaa
Mon May 10, 2010 12:51 pm
Forum: RouterBOARD hardware
Topic: How can I repair rb433ah?
Replies: 12
Views: 3141

Re: How can I repair rb433ah?

by aaa
Mon May 10, 2010 8:31 am
Forum: RouterBOARD hardware
Topic: RB800 big problem
Replies: 133
Views: 22176

Re: RB800 big problem

Yes, temp. sensor is inside CPU. Check your RB CPU load. On all RB800 CPU temperature must be very close.
by aaa
Fri May 07, 2010 5:03 pm
Forum: Wireless Networking
Topic: problem in freq.
Replies: 5
Views: 902

Re: problem in freq.

Use different SSID for each AP else 20MHz channel wide is more advisable.
by aaa
Thu May 06, 2010 11:55 am
Forum: Wireless Networking
Topic: New setup: pigtails for RB411 + R52Hn etc
Replies: 1
Views: 980

Re: New setup: pigtails for RB411 + R52Hn etc

Look for two Swivel antenna with MMCX connector. Something like this.
http://www.routerboard.com/index.php?showProduct=80
For office it's good enough.
by aaa
Thu May 06, 2010 12:06 am
Forum: RouterBOARD hardware
Topic: NO mPCI detect on RB133
Replies: 9
Views: 1860

Re: NO mPCI detect on RB133

No, I mean if you want repair RB400 series boards IR oven is useful.
by aaa
Wed May 05, 2010 10:50 am
Forum: Wireless Networking
Topic: RB800 installation power requirement?
Replies: 4
Views: 1018

Re: RB800 installation power requirement?

Regarding power it's ok use 48V;60W POE injector. But about R52Hn I don't know. This card make many heat :))
by aaa
Wed May 05, 2010 9:52 am
Forum: Wireless Networking
Topic: Wrong TX-power values.
Replies: 19
Views: 3599

Re: Wrong TX-power values.

Better way to get max. TX power stick power meter to wireless card and increase TX-power until you reach tx-power noted on card documentation for each datarate. Else I noted that default TX power for UBNT wireless card is very far from max. TX power listed in UBNT documentation.
by aaa
Wed May 05, 2010 9:28 am
Forum: RouterBOARD hardware
Topic: NO mPCI detect on RB133
Replies: 9
Views: 1860

Re: NO mPCI detect on RB133

Carefuly check is it all BGA balls present on new CPU. I note few times that new CPU lost some balls. Else heater gun is not so precise. IR oven is much better moreover if you want replase that chips like AR7130.
by aaa
Sun May 02, 2010 10:28 pm
Forum: RouterBOARD hardware
Topic: NO mPCI detect on RB133
Replies: 9
Views: 1860

Re: NO mPCI detect on RB133

Something wrong with ADM5120 soldering (mPCI signaling) Can you describe what method and equipment you use?
by aaa
Sun May 02, 2010 10:16 pm
Forum: RouterBOARD hardware
Topic: RB800 big problem
Replies: 133
Views: 22176

Re: RB800 big problem

What case you use?What wireless card you use?
by aaa
Fri Apr 30, 2010 3:22 pm
Forum: RouterBOARD hardware
Topic: Routerboard with wireless and 3G - which got lowest pwr cons
Replies: 7
Views: 1394

Re: Routerboard with wireless and 3G - which got lowest pwr

RB411UAHR not bad. Power consumption only 3,6W with idle wireless and 3G
by aaa
Wed Apr 28, 2010 10:11 am
Forum: RouterBOARD hardware
Topic: router board powering issues
Replies: 1
Views: 449

Re: router board powering issues

Use regular 24V; 0,8A PSU Check it with other RB before use. If you don't see any lights that's mean it is broken. Contact with your supplier.
by aaa
Tue Apr 27, 2010 12:48 pm
Forum: RouterBOARD hardware
Topic: Problems with RB750G or PSU?
Replies: 8
Views: 1446

Re: Problems with RB750G or PSU?

RB750G support ether1 poe over spare lines and poe over data lines ( 24V non standard ) When you connect ether1 to POE swich ( tipicaly 802.3af with 48V POE ) RB goes to OVP state. Just don't use ether1 with swich with poe ports. Ether2-ether5 is simple gigabit ports without POE incoming or outgoing.
by aaa
Fri Apr 23, 2010 10:45 am
Forum: Wireless Networking
Topic: Wlan on Win power Plant?
Replies: 1
Views: 505

Re: Wlan on Win power Plant?

I think you got higher ping delay and less bandwith and that's all.
by aaa
Thu Apr 22, 2010 9:25 am
Forum: RouterBOARD hardware
Topic: rb11 and r52hn
Replies: 2
Views: 715

Re: rb11 and r52hn

RB11r3 provide up to 5A ( 16W ) power consumption. You can use it with R52Hn
by aaa
Wed Apr 21, 2010 4:22 pm
Forum: Wireless Networking
Topic: R5nH - 1x1 MiMo card...
Replies: 32
Views: 5417

Re: R5nH - 1x1 MiMo card...

I mean measure voltage between any of this component and ground. Like ground you can use mPCI holder palaces or RF shield.
by aaa
Wed Apr 21, 2010 3:21 pm
Forum: RouterBOARD hardware
Topic: Problems with RB750G or PSU?
Replies: 8
Views: 1446

Re: Problems with RB750G or PSU?

Try with 24V; 0,8A PSU. RB750G power consumption is very close or more then 6W depend on RB state.
by aaa
Wed Apr 21, 2010 3:10 pm
Forum: RouterBOARD hardware
Topic: RB800 Second Serial Port (IDC10)
Replies: 6
Views: 1293

Re: RB800 Second Serial Port (IDC10)

Wait for RouterOS 4.8 there can be added second serial port support.
by aaa
Wed Apr 21, 2010 2:30 pm
Forum: RouterBOARD hardware
Topic: Problems with RB750G or PSU?
Replies: 8
Views: 1446

Re: Problems with RB750G or PSU?

What PSU you use?
by aaa
Wed Apr 21, 2010 9:38 am
Forum: Wireless Networking
Topic: R5nH - 1x1 MiMo card...
Replies: 32
Views: 5417

Re: R5nH - 1x1 MiMo card...

Hi, can you put broken wireless card in any RB and measure voltage at this point? I must be close with +5V DC
by aaa
Mon Apr 19, 2010 12:07 pm
Forum: RouterBOARD hardware
Topic: RB433 upgrade ram to 128Mb
Replies: 3
Views: 998

Re: RB433 upgrade ram to 128Mb

You can't change RB type without BIOS upgrade except maybe RB133c and few more mPCI :)) and I think you can't make required BIOS upgrade.
by aaa
Fri Apr 16, 2010 1:42 pm
Forum: Wireless Networking
Topic: How to gain 2db whit a simple welding
Replies: 5
Views: 909

Re: How to gain 2db whit a simple welding

In my opinion you lost some 2 dB :)) You have big enough unshielded cable trace.
by aaa
Fri Apr 16, 2010 10:13 am
Forum: Wireless Networking
Topic: Power Offset for Ubiquit SR71
Replies: 28
Views: 7041

Re: Power Offset for Ubiquit SR71

For 54mbit rate
by aaa
Fri Apr 16, 2010 10:12 am
Forum: Wireless Networking
Topic: Power Offset for Ubiquit SR71
Replies: 28
Views: 7041

Re: Power Offset for Ubiquit SR71

There is real TX-power measurement for XR5. Add 10dB attenuator value and ~2dB pigtail attenuation to measured power value.
by aaa
Thu Apr 15, 2010 4:58 pm
Forum: RouterBOARD hardware
Topic: Problem with RB532A
Replies: 5
Views: 843

Re: Problem with RB532A

Did you test RB with 48V PSU? Optimal RouterOS for RB532 is 2.9.51
by aaa
Wed Apr 14, 2010 4:28 pm
Forum: Wireless Networking
Topic: rb433ah interference between mpci cards
Replies: 75
Views: 18317

Re: rb433ah interference between mpci cards

Actually HF and UHF theory is not so far. Typically wireless card have baseband radio chip with software controlled exchangeable gain preamplifier and analog feed back input for wide band correction and additional two or three stage power amplifier. Circuit between baseband radio and PA most sensiti...
by aaa
Wed Apr 14, 2010 9:33 am
Forum: Wireless Networking
Topic: Has anyone tried a deployment with rohn telescoping masts?
Replies: 2
Views: 655

Re: Has anyone tried a deployment with rohn telescoping mast

Tipicaly I use integrated solutions, N-type connectors need clear each 1-2years. Towers I make always myself, welding equipiment and 2-3 day work and I got 12-18m servicable tower depend on my requiremet. For example 12m tower cost not exceed some 90-100$ There is some photo If you locate somewhere ...
by aaa
Tue Apr 13, 2010 10:03 pm
Forum: RouterBOARD hardware
Topic: RB800 Dropping Ethernet Link
Replies: 9
Views: 1793

Re: RB800 Dropping Ethernet Link

Try set 100Mbit half-duplex
by aaa
Tue Apr 13, 2010 11:07 am
Forum: Wireless Networking
Topic: 1W card with RB433AH
Replies: 3
Views: 813

Re: 1W card with RB433AH

There don't have many technical information. What is this card chipset? What is power consumption?
Some peoples use WLM54G-30-ESD from Compex
http://www.compex.com.sg/fullDescription.aspx?pID=90
Unfortunately I don't have experience with any of this cards.
by aaa
Tue Apr 13, 2010 8:02 am
Forum: RouterBOARD hardware
Topic: RB800 Dropping Ethernet Link
Replies: 9
Views: 1793

Re: RB800 Dropping Ethernet Link

Try disable auto negotiation on RB800 and set speed to 100Mbit. What cable length you use?
by aaa
Sun Apr 11, 2010 10:50 pm
Forum: Wireless Networking
Topic: R5nH - 1x1 MiMo card...
Replies: 32
Views: 5417

Re: R5nH - 1x1 MiMo card...

Can you give this RMA card mac address?
by aaa
Fri Apr 09, 2010 12:59 pm
Forum: Wireless Networking
Topic: Act-Timeout
Replies: 6
Views: 1149

Re: Act-Timeout

I can tell regarding 802.11n that Dynamic is worse like you set it manualy.
by aaa
Fri Apr 09, 2010 10:41 am
Forum: RouterBOARD hardware
Topic: RB433 all lan ports don t work
Replies: 6
Views: 1318

Re: RB433 all lan ports don t work

It's new RB or you take it from some installation? What you see on serial output? What PSU you use?
by aaa
Thu Apr 08, 2010 6:30 pm
Forum: RouterBOARD hardware
Topic: UPS problem
Replies: 8
Views: 1452

Re: UPS problem

But we talk about RB450G. Basically this solution work with any RB powering via Jack.
by aaa
Thu Apr 08, 2010 6:20 pm
Forum: Wireless Networking
Topic: R5H firt impression - what a improvement!
Replies: 27
Views: 5649

Re: R5H firt impression - what a improvement!

Wireless link on 5GHz without LOS it's wasted time and nerve. Check this link when trees goes green :))
by aaa
Thu Apr 08, 2010 5:16 pm
Forum: RouterBOARD hardware
Topic: UPS problem
Replies: 8
Views: 1452

Re: UPS problem

What you mean "Insufficient charge the battery"? It charge in standbay mode with ~13,8V power like most lead acid battery and it's close to 90% charged all the time. About monitoring - RB450G have voltage monitor and you can see is it on battery or on AC Of course RB under voltage threshold is too l...
by aaa
Thu Apr 08, 2010 2:51 pm
Forum: RouterBOARD hardware
Topic: UPS problem
Replies: 8
Views: 1452

Re: UPS problem

You can use this solution for power backup feature. It's cheaper and smaller.

http://forum.mikrotik.com/viewtopic.php?f=3&t=39117
by aaa
Thu Apr 08, 2010 10:11 am
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 287255

Re: 802.11n

I don't have any dual nstream wireless link but I have many single nstream link and 802.11n latency is better at full load. I don't offer voceip service over wireless therefore 802.11n is very acceptable for me.In the immediate future I plan one 10km wireless link with 5GHz N and I can post results....
by aaa
Wed Apr 07, 2010 12:36 pm
Forum: Wireless Networking
Topic: R5nH - 1x1 MiMo card...
Replies: 32
Views: 5417

Re: R5nH - 1x1 MiMo card...

What's happen with this card? It would be interesting how the R52Hn would perform in the same scenario using one chain. As it has much better sensivity it should give better performance. I can grab a couple next time I order, but on this link senstitivty shouldn't be the problem as I should be a sol...
by aaa
Tue Apr 06, 2010 9:58 am
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 287255

Re: 802.11n

Two chains, ping not exceed 20-30ms. I can try make sreen shot but I am not always on internet connection. Real 100mbit half duplex is arrived! This is real customer traffic not any type of b-test. I try replace RB600 at station side and I am sure i can get more then 100mbit in one direction! 1 or 2...
by aaa
Tue Apr 06, 2010 9:52 am
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 287255

Re: 802.11n

It's mixed customer internet traffic. Some of this is HTTP,FTP but most is P2P taffic. Real 100mbit half duplex is arrived! This is real customer traffic not any type of b-test. I try replace RB600 at station side and I am sure i can get more then 100mbit in one direction! 100mbt tcp or udp traffic ?
by aaa
Mon Mar 29, 2010 9:19 pm
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 287255

Re: 802.11n

Real 100mbit half duplex is arrived! This is real customer traffic not any type of b-test. I try replace RB600 at station side and I am sure i can get more then 100mbit in one direction!
by aaa
Mon Mar 29, 2010 8:52 am
Forum: Wireless Networking
Topic: Full Duplex R52nH
Replies: 13
Views: 2710

Re: Full Duplex R52nH

I repeat all 802.11a/b/g/n wireless cards is half duplex. It transmit in one time and receive in other time not in same time. Check electrical scheme any of this cards. Not entirely accurate. 802.11n can receive on one antenna while transmitting on the other. Does this sound like full duplex to you?
by aaa
Mon Mar 29, 2010 12:16 am
Forum: Wireless Networking
Topic: Full Duplex R52nH
Replies: 13
Views: 2710

Re: Full Duplex R52nH

All wireless cards is half-duplex. Use two wireless cards for full duplex.
by aaa
Thu Mar 25, 2010 1:13 pm
Forum: Wireless Networking
Topic: Configuring antenna-mode on R52Hn
Replies: 6
Views: 3466

Re: Configuring antenna-mode on R52Hn

What band settings you use? I just test it on 411 with 4.6 RouterOS in indoor setup each chain conform chain settings. When you set RX/TX =0 J4 working in both directions. When you set RX/TX = 1 both directions working over J5.
by aaa
Thu Mar 25, 2010 11:17 am
Forum: Wireless Networking
Topic: Base station problem... SOLVED! Please read...
Replies: 18
Views: 4291

Re: Base station problem. Please help...

Yes use different ssid for each sector and don't use big letter in ssid name else is welcomed.
by aaa
Thu Mar 25, 2010 8:54 am
Forum: Wireless Networking
Topic: Base station problem... SOLVED! Please read...
Replies: 18
Views: 4291

Re: Base station problem. Please help...

Try increase frequency between channels.
by aaa
Thu Mar 25, 2010 8:39 am
Forum: Wireless Networking
Topic: Configuring antenna-mode on R52Hn
Replies: 6
Views: 3466

Re: Configuring antenna-mode on R52Hn

He ask number over there device name. Antenna mode settings is not active for this wireless card. Each chain have only one antenna output. Use ht-rx/tx chain= to configure antenna-mode.
by aaa
Wed Mar 24, 2010 11:02 pm
Forum: Wireless Networking
Topic: Base station problem... SOLVED! Please read...
Replies: 18
Views: 4291

Re: Base station problem. Please help...

How about 20MHz channel width? Else do you try replace Dbii wireless cards on CPE with some R52 cards?
by aaa
Wed Mar 24, 2010 11:28 am
Forum: RouterBOARD hardware
Topic: RB411 and RB433 Ethernet cards models
Replies: 1
Views: 706

Re: RB411 and RB433 Ethernet cards models

You mean ethernet controller part numbers?You can find label on each package.
for RB411 - KSZ8041
RB411U - AR8012
RB433 - IP175C
by aaa
Tue Mar 23, 2010 11:07 am
Forum: RouterBOARD hardware
Topic: RB433 nand flashed but ether1 doesnt work
Replies: 7
Views: 1203

Re: RB433 nand flashed but ether1 doesnt work

IP175C and IP175D it's not replacement from software viewpoint.
by aaa
Mon Mar 22, 2010 9:51 pm
Forum: RouterBOARD hardware
Topic: RB800 + RB/816 link intermittent (link up and down)
Replies: 3
Views: 973

Re: RB800 + RB/816 link intermittent (link up and down)

For RB800+RB816 use 48V PSU.
by aaa
Mon Mar 22, 2010 9:46 pm
Forum: RouterBOARD hardware
Topic: RB433 nand flashed but ether1 doesnt work
Replies: 7
Views: 1203

Re: RB433 nand flashed but ether1 doesnt work

It's not possible. Fix ether1 and then reinstall RouterOS.
by aaa
Mon Mar 22, 2010 8:52 am
Forum: Wireless Networking
Topic: How far can I create a poe 24v link over cat5e?
Replies: 10
Views: 3023

Re: How far can I create a poe 24v link over cat5e?

What you see in /log print after reboot? All Mikrotik hardware designed to work with up to 100m POE
by aaa
Sat Mar 20, 2010 9:31 am
Forum: Wireless Networking
Topic: wireless link 5ghz+video streaming
Replies: 19
Views: 4087

Re: wireless link 5ghz+video streaming

I have video watch system on one place. Distance ~ 1km AP with 90 degree sector antenna, clients with 12dBi flat panel. RB411+R52 in all places. Work perfect.Total traffic to AP ~ 15mbit, but it's not video in non-stop. Each camera make one picture in 1-2sec.
by aaa
Fri Mar 19, 2010 1:38 pm
Forum: Wireless Networking
Topic: commerical Wind farms + 5.8Ghz (Interference ? )
Replies: 3
Views: 623

Re: commerical Wind farms + 5.8Ghz (Interference ? )

I don't think that can make problem. Of course if you don't have it directly in LOS. This farms just have 50Hz or 60Hz frequency.
by aaa
Fri Mar 19, 2010 12:23 pm
Forum: Wireless Networking
Topic: wireless link 5ghz+video streaming
Replies: 19
Views: 4087

Re: wireless link 5ghz+video streaming

Can you run high speed ping over wireless link and check delay status. May be problem is not in wireless connection.
by aaa
Fri Mar 19, 2010 11:54 am
Forum: Wireless Networking
Topic: wireless link 5ghz+video streaming
Replies: 19
Views: 4087

Re: wireless link 5ghz+video streaming

Janis do you see any blowing out receiving wireless interface? It just decrease link true output if you can't reduce TX power. check signal strength, if it is above -45dBi reduce power on wireless cards. It is usual when signal is too strong that link quality decreases or even you can blow out recei...
by aaa
Thu Mar 18, 2010 9:25 am
Forum: Wireless Networking
Topic: RB433 with 2 engenius EMP-8603
Replies: 10
Views: 2204

Re: RB433 with 2 engenius EMP-8603

Seems production calibration problem. Be carefully with eeprom modification it contain very sensitive information.
by aaa
Thu Mar 18, 2010 9:16 am
Forum: RouterBOARD hardware
Topic: Ethernet problems caused probably by RFI/EMI
Replies: 11
Views: 2460

Re: Ethernet problems caused probably by RFI/EMI

Unshielded cable flatly not recommend use for any outdoor installation! That's reason for more then half all RB damages.
by aaa
Wed Mar 17, 2010 4:43 pm
Forum: Wireless Networking
Topic: Noisy environments - Single or dual polarised antennas?
Replies: 6
Views: 1051

Re: Noisy environments - Single or dual polarised antennas?

No, it's MA-WA58-1X in vertical polarization.
http://www.mars-antennas.com/item/g_ant ... _1-40.html
Most antennas is very dificult put on mast in +45 -45 degree mounting.
Do you have real +45 -45 degree instalation photo?
by aaa
Wed Mar 17, 2010 2:45 pm
Forum: Wireless Networking
Topic: RB433 with 2 engenius EMP-8603
Replies: 10
Views: 2204

Re: RB433 with 2 engenius EMP-8603

Else try swap mPCI sockets maybe some of this not soldered properly.
by aaa
Wed Mar 17, 2010 2:31 pm
Forum: RouterBOARD hardware
Topic: How can I repair rb433ah?
Replies: 12
Views: 3141

Re: How can I repair rb433ah?

Write e-mail to support@mikrotik.com and describe all problems. For example - turn on RB have light no double beep or turn on RB no light no any beep. I am sure support can help.
by aaa
Wed Mar 17, 2010 2:22 pm
Forum: RouterBOARD hardware
Topic: RB450 no serial console on boot (can't restore routeros)
Replies: 3
Views: 1766

Re: RB450 no serial console on boot (can't restore routeros)

Stick serial cable to RB,open some terminal program on PC. Push and hold RESET button and then turn on power.
by aaa
Wed Mar 17, 2010 9:59 am
Forum: Wireless Networking
Topic: RB433 with 2 engenius EMP-8603
Replies: 10
Views: 2204

Re: RB433 with 2 engenius EMP-8603

Hi, can you test this cards in some mipsle or ppc system?
by aaa
Tue Mar 16, 2010 2:34 pm
Forum: Wireless Networking
Topic: AP 5GHz a/n conf.
Replies: 2
Views: 1111

Re: AP 5GHz a/n conf.

You can't use regular 802.11a and connect different clients on each chain because n wireless cards can't separate rx/tx stage on each chain. Use dual polarization CPE for clients connection.
by aaa
Tue Mar 16, 2010 11:35 am
Forum: RouterBOARD hardware
Topic: RB800 and extra cards
Replies: 6
Views: 1220

Re: RB800 and extra cards

No, I just testing power, how powerful is it how many power it take. Does it reboot at max. TX load or not. In real situation it's posible some RF interference depend on what case and what pigtails you use.
by aaa
Tue Mar 16, 2010 9:43 am
Forum: RouterBOARD hardware
Topic: RB800 and extra cards
Replies: 6
Views: 1220

Re: RB800 and extra cards

RB800 is more powerful. Use 48v-1.6a with Jack or POE
by aaa
Tue Mar 16, 2010 8:52 am
Forum: Wireless Networking
Topic: 5KM PtP - Highest possible throughput
Replies: 5
Views: 1211

Re: 5KM PtP - Highest possible throughput

80mbit half-duplex depend on how clear propagation you have. RB600 on AP side and RB800 on client side ( RB600 is little bit short ) and R52Hn - I am not tets it on outdoor environment but seems not bad.
by aaa
Mon Mar 15, 2010 8:55 am
Forum: RouterBOARD hardware
Topic: RB800 and extra cards
Replies: 6
Views: 1220

Re: RB800 and extra cards

I test it with eight mixed high power card ( R5H,R52Hn,XR2 ) and it work fine. Power consumption ~40W over Jack and ~55W over POE
by aaa
Sun Mar 14, 2010 12:51 pm
Forum: Wireless Networking
Topic: Dual Polarized Antenna Feedhorn...any good?
Replies: 3
Views: 1981

Re: Dual Polarized Antenna Feedhorn...any good?

I can't find any technical information. Ask they about port to port isolation value and cross polarization value.
by aaa
Sat Mar 13, 2010 9:50 am
Forum: RouterBOARD hardware
Topic: R5H problems
Replies: 72
Views: 17321

Re: R5H problems

Precisely second picture is from this antenna feed measurement :))

http://forum.mikrotik.com/viewtopic.php?f=7&t=38509

In addition this feed some times have problem with water inside. I have this antenna on few links.
by aaa
Fri Mar 12, 2010 9:20 pm
Forum: RouterBOARD hardware
Topic: R5H problems
Replies: 72
Views: 17321

Re: R5H problems

What antennas you use? Write to rma@mikrotik.com ask way to replace it.
by aaa
Fri Mar 12, 2010 12:55 pm
Forum: RouterBOARD hardware
Topic: 750G serial
Replies: 4
Views: 932

Re: 750G serial

Check four white holes on buttom side.But I don't think that you can see anything on serial output.
by aaa
Fri Mar 12, 2010 9:42 am
Forum: Wireless Networking
Topic: Nstreme2 can be 100% FDD?
Replies: 12
Views: 2786

Re: Nstreme2 can be 100% FDD?

If you can make photo without RF shield , I can show you diversity swich. You can test with multimeter like on all other card. Later if someone is interesting I can try make short movie how replace diversity swich. Only I need find some camera :)) can someone post a pic of a diversity switch? I'd li...
by aaa
Fri Mar 12, 2010 12:20 am
Forum: Wireless Networking
Topic: Nstreme2 can be 100% FDD?
Replies: 12
Views: 2786

Re: Nstreme2 can be 100% FDD?

If you have broken diversity swich all direction is shorted to ground.Any usage is not possible.
by aaa
Thu Mar 11, 2010 10:06 am
Forum: RouterBOARD hardware
Topic: 411 + Ar5213 Problem
Replies: 1
Views: 447

Re: 411 + Ar5213 Problem

It must be work. CM9 have same chipset. Can you test wireless card with other RB?
by aaa
Tue Mar 09, 2010 5:04 pm
Forum: RouterBOARD hardware
Topic: R5H problems
Replies: 72
Views: 17321

Re: R5H problems

No, it's Standing Wave Ratio.
Don't use antennas with SWR value higher like 2 and you acquire less damages.
by aaa
Mon Mar 08, 2010 1:47 pm
Forum: RouterBOARD hardware
Topic: High CPU load or not?
Replies: 13
Views: 1712

Re: High CPU load or not?

Run /system check-installation in terminal . Else you can open RB case and check electrolytic capacitors.

http://forum.mikrotik.com/viewtopic.php?f=3&t=39091
by aaa
Mon Mar 08, 2010 10:23 am
Forum: RouterBOARD hardware
Topic: High CPU load or not?
Replies: 13
Views: 1712

Re: High CPU load or not?

I have same configuration but PSU is 24V; 0.8A I don't have any problem more then 1 year. WAN trafic some times goes up to 100-200mbit
by aaa
Mon Mar 08, 2010 9:37 am
Forum: RouterBOARD hardware
Topic: High CPU load or not?
Replies: 13
Views: 1712

Re: High CPU load or not?

And what RouterOS you use?
by aaa
Mon Mar 08, 2010 8:59 am
Forum: RouterBOARD hardware
Topic: what is the best PC hardware to mount a server mikrotik?
Replies: 4
Views: 1097

Re: what is the best PC hardware to mount a server mikrotik?

I use Intel Pro 1000GT on Celeron system - work perfect with most 2.9 version RouterOS
http://www.intel.com/products/desktop/a ... erview.htm
by aaa
Fri Mar 05, 2010 1:15 pm
Forum: RouterBOARD hardware
Topic: Problem with a 411AH and r52N
Replies: 3
Views: 763

Re: Problem with a 411AH and r52N

What your see under /system resource pci ? Do you have other wireless card for testing? Put it and check again.
by aaa
Wed Mar 03, 2010 9:28 am
Forum: Wireless Networking
Topic: Mini PCI to PCI adapter
Replies: 2
Views: 556

Re: Mini PCI to PCI adapter

RB14 is good enough. Power resources - 1,5A for each mPCI or 3A for two mPCI
by aaa
Tue Mar 02, 2010 2:42 pm
Forum: RouterBOARD hardware
Topic: RB411U board on LED LD302
Replies: 4
Views: 864

Re: RB411U board on LED LD302

State OFF - Not powered State ON - Powered, associated, and authenticated but not transmitting or receiving State Slow Blink - Powered but not associated or authenticated; searching State Intermittent Blink - Activity proportional to transmitting/receiving speed For voice applications, turning off a...
by aaa
Tue Mar 02, 2010 10:17 am
Forum: Wireless Networking
Topic: is 50 kms non line of sight link possible??
Replies: 11
Views: 2648

Re: is 50 kms non line of sight link possible??

On 3,5MHz or 7MHz with SSB or CW it's easy :))
by aaa
Tue Mar 02, 2010 10:05 am
Forum: RouterBOARD hardware
Topic: RB411U board on LED LD302
Replies: 4
Views: 864

Re: RB411 board on LED LD302

It's show mPCIe WAN activation.
by aaa
Sun Feb 28, 2010 11:53 pm
Forum: RouterBOARD hardware
Topic: RB433AH or RB532
Replies: 5
Views: 1160

Re: RB433AH or RB532

Cool!
by aaa
Sun Feb 28, 2010 11:49 pm
Forum: RouterBOARD hardware
Topic: please i want answer about r52n or r52hn?
Replies: 5
Views: 1330

Re: please i want answer about r52n or r52hn?

Hi, I use r52n with one chain some time ago when I got water in other chain cable at AP side. Stable 117Mbps-HT connection in both way with ~ 50mbit half duplex real true output.
by aaa
Thu Feb 25, 2010 12:33 pm
Forum: RouterBOARD hardware
Topic: rb532r5: green led on eth2
Replies: 4
Views: 736

Re: rb532r5: green led on eth2

Stick serial cable, go to RB BIOS. If you have link and no cable connected that is PHY hardware problem.
by aaa
Tue Feb 23, 2010 11:56 am
Forum: RouterBOARD hardware
Topic: rb532r5: green led on eth2
Replies: 4
Views: 736

Re: rb532r5: green led on eth2

I note same thing on lightening damaged RB Check before is it mPCI work fine then replace VT6106
by aaa
Tue Feb 23, 2010 10:26 am
Forum: Wireless Networking
Topic: Using separate radios for send and receive as AP
Replies: 12
Views: 2339

Re: Using separate radios for send and receive as AP

I think he talk about full duplex system with AP/station mode. All existing wireless card work only in half duplex mode.
by aaa
Tue Feb 23, 2010 9:32 am
Forum: RouterBOARD hardware
Topic: RESOLVE rb600 and ether connections
Replies: 2
Views: 665

Re: rb600 and ether connections

Make /system reset-configuration and then add IP on any ethernet interface and try ping RB from PC. If no success go back to 3.30
by aaa
Wed Feb 10, 2010 3:26 pm
Forum: RouterBOARD hardware
Topic: Need to run OpenWrt on RB450G
Replies: 7
Views: 1803

Re: Need to run OpenWrt on RB450G

I think it's not posible. All RB except RB200 designed to work only with RouterOS
by aaa
Wed Feb 10, 2010 2:22 pm
Forum: RouterBOARD hardware
Topic: Why need two power jacks on RB450?
Replies: 5
Views: 1484

Re: Why need two power jacks on RB450?

No, 13V is too low for POE supplying. It is mostly for indoor usage.
by aaa
Wed Feb 10, 2010 11:33 am
Forum: Wireless Networking
Topic: 4 km link with r52n
Replies: 3
Views: 802

Re: 4 km link with r52n

It's PSU problem. Use 18V DC or 24V DC switching PSU
by aaa
Wed Feb 10, 2010 11:13 am
Forum: RouterBOARD hardware
Topic: Mikrotik cards Integrated surge protector, MT please help us
Replies: 3
Views: 865

Re: Integrated surge protector.

How far I know only R5H and R52Hn have ESD or else called lightening protection.
by aaa
Tue Feb 09, 2010 4:36 pm
Forum: RouterBOARD hardware
Topic: RB750G and PoE
Replies: 11
Views: 5440

Re: RB750 and PoE

RB750G have five gigabit ports. Ether1 support passive POE with 100mbit speed and Mikrotik gbit POE with 1000mbit speed
by aaa
Mon Feb 08, 2010 5:04 pm
Forum: RouterBOARD hardware
Topic: Boot stop to first beep..
Replies: 1
Views: 550

Re: Boot stop to first beep..

That mean your RB BIOS is ok, but RouterOS is corupted. Use serial nulmodem connection to check and reinstall RouterOS via Netinstall
by aaa
Mon Feb 08, 2010 11:42 am
Forum: RouterBOARD hardware
Topic: RB service life (MTBF) for investment analysis
Replies: 6
Views: 1294

Re: RB service life (MTBF) for investment analysis

MTBF for same type each RB batch can be very different. It's related with when this RB is made, where and how large is production bath and some other consedirations.
by aaa
Wed Feb 03, 2010 1:11 pm
Forum: RouterBOARD hardware
Topic: RB411AH Voltage Monitoring
Replies: 1
Views: 575

Re: RB411AH Voltage Monitoring

Every new RB has new software :)) Use latest RouterOS, if this feature not work write to support@mikrotik.com
by aaa
Wed Feb 03, 2010 1:07 pm
Forum: RouterBOARD hardware
Topic: RB433 Ethernet Problem
Replies: 2
Views: 762

Re: RB433 Ethernet Problem

You receive RB with eth1 problem or something happen when you use it? If you have problem with any interface no reason formating NAND. Just make /system reset-configuration or upgrade RouterOS
by aaa
Wed Feb 03, 2010 12:00 am
Forum: RouterBOARD hardware
Topic: Router suggestion
Replies: 23
Views: 4929

Re: Router suggestion

I make a choice in 450G direction.
by aaa
Tue Feb 02, 2010 3:28 pm
Forum: RouterBOARD hardware
Topic: Failing ether interfaces?
Replies: 1
Views: 535

Re: Failing ether interfaces?

Hi, if you don't have ethernet connection but RB load RouterOS in most case RB PHY is dead. If you know some skiled electronics engineer or ham radio guy you can repair RB localy ( RB repairing is not so difficult ) or write e-mail to rma@mikrotik.com and explain your problem.
by aaa
Tue Feb 02, 2010 11:16 am
Forum: Wireless Networking
Topic: 100mbps full duplex over wireless with Mikrotik?
Replies: 6
Views: 1667

Re: 100mbps full duplex over wireless with Mikrotik?

For 802.11n at this moment yes.
by aaa
Mon Feb 01, 2010 10:37 pm
Forum: Wireless Networking
Topic: 100mbps full duplex over wireless with Mikrotik?
Replies: 6
Views: 1667

Re: 100mbps full duplex over wireless with Mikrotik?

Same setup but without OSPF load-balancing. Just separate data flow with different gateways. I test on 10km and make stable ~ 190mbit on each direction with b-test. But I am not sure about 30km.
by aaa
Mon Feb 01, 2010 10:27 pm
Forum: RouterBOARD hardware
Topic: Router suggestion
Replies: 23
Views: 4929

Re: Router suggestion

RB450G is fine. I have gbit fiber optic on internet connection and few separate 1000Base-T and 100Base-T networks with ~ 200 customers and CPU load not exceed some 60%
by aaa
Mon Feb 01, 2010 4:33 pm
Forum: Wireless Networking
Topic: 100mbps full duplex over wireless with Mikrotik?
Replies: 6
Views: 1667

Re: 100mbps full duplex over wireless with Mikrotik?

What distance you need cover?
by aaa
Mon Feb 01, 2010 10:38 am
Forum: RouterBOARD hardware
Topic: problem with Boot on RB433 AND RB600
Replies: 1
Views: 780

Re: problem with Boot on RB433 AND RB600

Use PC with netinstall and reinstall RouterOS
by aaa
Mon Feb 01, 2010 9:50 am
Forum: RouterBOARD hardware
Topic: What routerboard am I using?
Replies: 6
Views: 1636

Re: What routerboard am I using?

Your first print out is not from RB532. RB500 don't have 175MHz CPU clock.
by aaa
Mon Feb 01, 2010 8:32 am
Forum: Wireless Networking
Topic: Does RB604 work with RB800
Replies: 1
Views: 549

Re: Does RB604 work with RB800

I think yes. Daughterboard connector on RB600 and RB800 has same pinout.
by aaa
Sat Jan 30, 2010 11:29 am
Forum: RouterBOARD hardware
Topic: tosted mikrotik 433 any idea why? here it is picture
Replies: 4
Views: 1033

Re: tosted mikrotik 433 any idea why? here it is picture

Actually this chip is just OVP. Possible your RB still life. Take metal tweezers and short this chip one side legs to other side legs. If your RB turn on and booting that mean you are lucky.
by aaa
Fri Jan 29, 2010 9:31 am
Forum: RouterBOARD hardware
Topic: R52Hn antenna connectors
Replies: 21
Views: 15835

Re: R52Hn antenna connectors

This is n wireless card. J4 is chain0 and J5 is chain1. J4 and J5 is main output. Be safe both aux output is terminated with 50 ohm load.
by aaa
Thu Jan 28, 2010 4:16 pm
Forum: Wireless Networking
Topic: How to measure antenna gain
Replies: 5
Views: 1675

Re: How to measure antenna gain

You can check antenna quality measuring for example antenna gain or SWR and compare with producer information. In attachment you can see two same type different company antenna SWR
by aaa
Thu Jan 28, 2010 11:11 am
Forum: RouterBOARD hardware
Topic: What routerboard am I using?
Replies: 6
Views: 1636

Re: What routerboard am I using?

I think it's mipsle architecture. RB133 or RB153. RouterOS 2.9.51 is good enough for this RB
by aaa
Thu Jan 28, 2010 10:05 am
Forum: RouterBOARD hardware
Topic: New RB816 !
Replies: 20
Views: 6438

Re: New RB816 !

I think it can work but you need latest RouterOS and I am not sure about max. taffic speed.
by aaa
Tue Jan 26, 2010 11:47 am
Forum: RouterBOARD hardware
Topic: [help]RB-411 restart
Replies: 4
Views: 897

Re: [help]RB-411 restart

What wireless you use? Power via Jack or POE?
by aaa
Thu Jan 21, 2010 10:47 pm
Forum: RouterBOARD hardware
Topic: RB Product Lifecycle
Replies: 15
Views: 2570

Re: RB Product Lifecycle

Hi, RB532 and RB333 is still available!
http://www.routerboard.com/clearance.php
by aaa
Thu Jan 21, 2010 12:42 pm
Forum: Wireless Networking
Topic: Good signal but no network traffic
Replies: 6
Views: 856

Re: Good signal but no network traffic

Have you try 2412-2472MHz frequency? Most 2,4GHz antennas have bad SWR and antenna gain value on 2312MHz
by aaa
Thu Jan 21, 2010 9:43 am
Forum: RouterBOARD hardware
Topic: RB's power off - need to pull dc plug to repower
Replies: 1
Views: 524

Re: RB's power off - need to pull dc plug to repower

Hi,that mean your electricity network possible is not stable. Old rev. RB4xx is sensitive to ~half second power outage. In all new rev. RB this bug is fixed. Use some UPS or lead acid battery to stabilize power.
by aaa
Thu Jan 21, 2010 9:05 am
Forum: Wireless Networking
Topic: How to measure antenna gain
Replies: 5
Views: 1675

Re: How to measure antenna gain

Something around 20k Eiro
  • 1
  • 2