Community discussions

MUM Europe 2020

Search found 15 matches

by demopro
Sat Sep 21, 2013 2:11 pm
Forum: General
Topic: MUM Live video from St. Louis starting now!
Replies: 52
Views: 17982

Re: MUM Live video from St. Louis starting now!

RB953GS-5HnT will have 3 chain 5GHz wireless, does that mean that this will be 802.11ac ?
by demopro
Thu Jul 18, 2013 6:15 pm
Forum: General
Topic: When will we have 802.11ac Support?
Replies: 33
Views: 10188

Re: When will we have 802.11ac Support?

no :(
by demopro
Fri Mar 22, 2013 11:02 am
Forum: Wireless Networking
Topic: AR95XX advanced channels
Replies: 13
Views: 2636

AR95XX advanced channels

Does Atheros AR95XX based chips support non-standard center frequencies and widths, or RouterOS currently don't support this feature for AR95XX chips?
I have AR9580 based card in RB800 RouterOS 6.0rc12 and channel widths in range 21-30 are not supported.
by demopro
Sat Jun 23, 2012 9:08 pm
Forum: Wireless Networking
Topic: RB800 3X3 minipci card
Replies: 46
Views: 15216

Re: RB800 3X3 minipci card

Does RouterOS support AR9580/AR9590 chipset???
by demopro
Tue Apr 24, 2012 3:40 pm
Forum: RouterBOARD hardware
Topic: GPOE
Replies: 1
Views: 467

GPOE

It's mirkotik GPOE comatible with RB433AH and any other non-gigabit models?
by demopro
Mon Apr 23, 2012 1:28 pm
Forum: General
Topic: v5.15 released!
Replies: 150
Views: 29789

Re: v5.15 released!

Normis,

when we can expect improvements for mimo 3x3 - AR9380, AR9390 cards?
by demopro
Thu Apr 05, 2012 12:33 am
Forum: Wireless Networking
Topic: AR9380 - laboratory tests
Replies: 19
Views: 6042

Re: AR9380 - laboratory tests

wireless card have basic setup, most is default and experimented with every combinaton of frequency, nv2 , nstreme , data-rates, tx-power. ch0 is vertical polarization of RocketDish 34dbi ch1 is horisontal polarization of Rocket Dish 34dBi ch2 is +45° slant polarization of panel antenna 28dBi reason...
by demopro
Wed Apr 04, 2012 10:06 am
Forum: Wireless Networking
Topic: AR9380 - laboratory tests
Replies: 19
Views: 6042

Re: AR9380 - laboratory tests

outdoor test distance 35km antennas on both ends rocket dish 5g34 (V/H polar.) + 28dbi panel antenna in slant polar. card - http://www.compex.com.sg/fullDescription.aspx?pID=132 with ar9390 chipset environment full of noise tested with nv2, nstreme , 20MHz channel , 40MHz channel, fixed data rates, ...
by demopro
Wed Dec 28, 2011 12:04 pm
Forum: Wireless Networking
Topic: Your Coax Sealing Techniques?
Replies: 13
Views: 3612

Re: Your Coax Sealing Techniques?

after 4 years of searching, for now best solution http://www.scapa.com/en/SelfAmalgamating.
but only SelfAmalgamating tape from Scapa, for us - any other vendor not have similar quality
by demopro
Wed Sep 02, 2009 2:10 am
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 289251

Re: 802.11n

promind,
try to set MTU higher than 1500 (eg. 1530) on wlan interfaces,and then use EoIP.
You used dual antenna or two antennas per site?
by demopro
Thu Aug 27, 2009 1:50 am
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 289251

Re: 802.11n

I had the same problems with almost the same antenna (other manufacturer, but the same feed).
Both the manufacturers claim that isolation is above 28dB.
If anyone has positive experience with dual pol. antennas?
by demopro
Wed Aug 26, 2009 1:09 pm
Forum: Wireless Networking
Topic: Dual polarization antennas or two antennas in one unit
Replies: 75
Views: 43969

Re: Dual polarization antennas or two antennas in one unit

Can someone explain the difference between this two things:
Port to Port Isolation 30dB
Cross Polarization 25dBi
example from same antenna.
by demopro
Thu Aug 13, 2009 9:12 pm
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 289251

Re: 802.11n

I tried all combinations of ht-basic-mcs / ht-supported-mcs and rate-set=default, but without results.
One side is antenna 28,5 dual polarized parabolic, on other side is 24dBi Dual Polarity Panel Antenna (MARS).
Configuration on both sides is antenna-mode=ant-a ,antenna-gain=0.
by demopro
Tue Aug 11, 2009 9:41 pm
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 289251

Re: 802.11n

here is my setup without nstreme and periodic calibration disabled.With nstreme enabled, link is disconnecting all the time. hardware used: 2xRB433AH , 2xR52N , 23dBi dual panel, on other side 28dBi dual dish. RouterOS:4.0beta4 link distance: 9km 802.11n.JPG 802reg.JPG I getting only 25 Mbps HDX and...