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Ivoshiee
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Re: LHG 60G experience

Mon Sep 24, 2018 10:13 am

The LHG 60G pointing to proper direction is impressively imprecise, which is strange with that beam forming and all. The link signal will cut off by only minor adjustments thus these "0.2 degrees left or right" are almost funny. What is the antenna pattern and how that device is using it?
 
server8
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Re: LHG 60G experience

Tue Sep 25, 2018 4:58 pm

Just to make a quick experiment: unsoldered LDF patch antenna and put it in the centre of the LHG60, The loss is high 8 to 10 dB compared to the LHG 5AC but easy solutions to make a cheap 5GHz backup using the same antenna :-)

The copper on the bottom is the reflector for the patch I don't make any calcultions only I just made it.
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miochoice
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Re: LHG 60G experience

Fri Sep 28, 2018 7:48 pm

any suggestions?
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Michaelcrapse
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Re: LHG 60G experience

Mon Oct 01, 2018 11:14 pm

1750m LHG60 ROS 6.43
lhg60 1750m.png

Freq:
58320 -59
60480 -63
62640 -62
Dang! I think you won a certain type of silicon lottery! We have 750m link at ~-50dBm signal. Yours at 1km more should see an additional ~-22dBm fade over ours so expected would be -72. I wonder, if you found the magical beamforming TX sector. Because in reality we took down an ML2.5 link which was connected at calculated RSSI of -33dBm, replaced with this one and now only -49 at best.
 
draguzet
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Re: LHG 60G experience

Tue Oct 02, 2018 10:21 am

1750m LHG60 ROS 6.43
lhg60 1750m.png

Freq:
58320 -59
60480 -63
62640 -62
We are suprised also with results (Signal) from Lakis ? Can you please share procedure to align, we have difficulties with proper aligning LHG 60G...
 
antonsb
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Re: LHG 60G experience

Tue Oct 02, 2018 10:51 am


Dang! I think you won a certain type of silicon lottery! We have 750m link at ~-50dBm signal. Yours at 1km more should see an additional ~-22dBm fade over ours so expected would be -72. I wonder, if you found the magical beamforming TX sector. Because in reality we took down an ML2.5 link which was connected at calculated RSSI of -33dBm, replaced with this one and now only -49 at best.
Don't trust RSSI readings too much. You should be able to get same distances with ease - upgrade to latest versions, there a lot of changes that affect receive sensitivity
 
blingblouw
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Re: LHG 60G experience

Tue Oct 02, 2018 8:19 pm


Dang! I think you won a certain type of silicon lottery! We have 750m link at ~-50dBm signal. Yours at 1km more should see an additional ~-22dBm fade over ours so expected would be -72. I wonder, if you found the magical beamforming TX sector. Because in reality we took down an ML2.5 link which was connected at calculated RSSI of -33dBm, replaced with this one and now only -49 at best.
Don't trust RSSI readings too much. You should be able to get same distances with ease - upgrade to latest versions, there a lot of changes that affect receive sensitivity

So what exactly do we trust? What are we aiming for, centre? If so, I have seen centre on different tx-sector. 36, 26/27, etc
 
whoknew
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Re: LHG 60G experience

Tue Oct 02, 2018 8:45 pm


Don't trust RSSI readings too much. You should be able to get same distances with ease - upgrade to latest versions, there a lot of changes that affect receive sensitivity

So what exactly do we trust? What are we aiming for, centre? If so, I have seen centre on different tx-sector. 36, 26/27, etc
I have asked this exact question in another thread. I have had answers about my radios being too close etc. I thought it was an alignment problem but we have tweaked and tweaked and cannot get any better results. We are seeing a lot of Link Downs on the Station side of our 60Ghz Mikrotik links.
 
Lakis
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Re: LHG 60G experience

Thu Oct 04, 2018 1:06 am

draguzet wrote
We are suprised also with results (Signal) from Lakis ? Can you please share procedure to align, we have difficulties with proper aligning LHG 60G...
Dude its very hard.
------------------------
DynStatic
-When you make an adjustment, the rssi won't update for seconds.
blue
-From time to time i had to wait for 15-20 seconds for information to settle down.
------------------------ Thats why!!!

muldeegg
- when one client reboots or loses a connection, all clients drop connection for a few seconds
Jokes aside I hate this problem Mikrotik please fix this
 
mblfone
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Re: LHG 60G experience

Thu Oct 04, 2018 1:28 am

I am as well having issues getting these things aligned...

1) Using the LED method absolutely won't work. If I use this my dish is physically aligned 20 degrees off of the remote dish.
2) MT provides few definitions on what we are seeing on the monitor/status menus. Signal, what is this exactly? Is this is db? What are the TX-SECTOR and RX-SECTOR numbers referring to?
3) RSSI stops responding after a while and is not reliable.
4) How do I turn beam forming off? I cannot figure out the nomenclature in terminal mode to do this and again there is no documentation on this. I think if I add a number to TX-SECTOR to set it as NOT auto, that turns of beam forming, but I can't figure out what to type to get that to happen.

My goal today was to change the TX-SECTOR to 32 thereby turning off beamforming and using RSSI while it responded to align our dishes. Is there a better TX-SECTOR number to use to get alignment handled than 32?

I don't like forums, but in the absence of decent wiki docs or online documentation I am forced to admit defeat and ask for input from those who have had better luck.

A better alignment procedure would be very helpful including CLI commands. We are using 6.43.2 presently.

Thanks to anyone who can help!
 
mblfone
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Re: LHG 60G experience

Thu Oct 04, 2018 4:05 am

I think that the correct command to shut down beamforming is /interface w60g set 0 tx-sector=32... I have no idea what the "0" is in the set command however.

Updating my prior post...
 
wispwest
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Re: LHG 60G experience

Thu Oct 04, 2018 4:52 am

I'm be putting up a LHG-60 PTP tomorrow at ~ 1300m, will I have fade? That's about 0.85 mi or so, which in my world is across the street.

Also, upon bench testing how do I see the PHY and other stats people posted on here? I even upgraded to the latest RC (development says N/A)
LHG-60.png
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wispwest
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Re: LHG 60G experience

Fri Oct 05, 2018 4:39 am

Pretty annoying actually, not even the station displays ANY sort of signal, MCS rates, PHY, NOTHING all is blank, with the latest RC! How has nobody seen this yet??
 
MonkeyDan
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Re: LHG 60G experience

Fri Oct 05, 2018 4:56 am

Pretty annoying actually, not even the station displays ANY sort of signal, MCS rates, PHY, NOTHING all is blank, with the latest RC! How has nobody seen this yet??
The testing branch is in beta these days, not RC.
I recommend 6.42.9 for production deployment.
 
mblfone
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Re: LHG 60G experience

Fri Oct 05, 2018 8:23 am

Pretty annoying actually, not even the station displays ANY sort of signal, MCS rates, PHY, NOTHING all is blank, with the latest RC! How has nobody seen this yet??
You are using the most recent beta. I get that too, I used montior 0 on the CLI to get around that.
 
mblfone
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Re: LHG 60G experience

Fri Oct 05, 2018 8:29 am

"The testing branch is in beta these days, not RC.
I recommend 6.42.9 for production deployment."

I haven't tried 6.42.9 yet. I have been going between the current and testing versions and am neither having much luck keeping a stable link nor am I confident in my alignment.

Would you please provide an alignment procedure that works for you? Apparently we shouldn't use RSSI and the LED method has not worked for me; it sends me way off a bore sighted path.

Also, can anyone tell me the significance of what the SIGNAL, RX-SECTOR and TX-SECTOR data is and how this might help an alignment?
 
Tepelensi
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Re: LHG 60G experience

Fri Oct 05, 2018 11:33 am

v6.43
connected: yes
frequency: 58320
remote-address: xx:xx:xx:xx:xx:xx
mcs: 4
phy-rate: 1155.0Mbps
signal: 40
rssi: -71
tx-sector: 30
tx-sector-info: right 1 degrees, down 0.2 degrees
distance: 1845.78m
Not tested in rain conditions yet.
 
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slarner
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Re: LHG 60G experience

Fri Oct 05, 2018 12:13 pm

v6.43
connected: yes
frequency: 58320
remote-address: xx:xx:xx:xx:xx:xx
mcs: 4
phy-rate: 1155.0Mbps
signal: 40
rssi: -71
tx-sector: 30
tx-sector-info: right 1 degrees, down 0.2 degrees
distance: 1845.78m
Not tested in rain conditions yet.
You will loose that in rain!
http://www.countybroadband.net
-----------------------------------------------
Provider of wireless broadband in Essex and Suffolk UK
 
Tepelensi
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Re: LHG 60G experience

Fri Oct 05, 2018 12:26 pm

v6.43
connected: yes
frequency: 58320
remote-address: xx:xx:xx:xx:xx:xx
mcs: 4
phy-rate: 1155.0Mbps
signal: 40
rssi: -71
tx-sector: 30
tx-sector-info: right 1 degrees, down 0.2 degrees
distance: 1845.78m
Not tested in rain conditions yet.
You will loose that in rain!
will see :)
 
antonsb
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Re: LHG 60G experience

Fri Oct 05, 2018 3:59 pm

4th channel should be much better in this distance
 
vladimirslk
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Re: LHG 60G experience

Sat Oct 06, 2018 12:33 am

i am still waiting from MT LHG60+5ghz in one unit, 5ghz for backup, price per unit should not go a lot even if add price of sxt lite into it.
setting kit with additional sxt unit, poe switch is kind of crazy..
 
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Re: LHG 60G experience

Wed Oct 10, 2018 11:35 am

Interesting experiences.
I have some test kit going up soon which is by Google mapping 2.63Km clear LOS tower to tower.
I'm not expecting full PHY rates but am wondering what it will reach and how any rain will affect the link. My hope is that it folds back and doesn't go off completely.
Steve "Steveocee" Carter
PC Gamer, Airsofter, MikroTik Nerd
My Website - My MikroTik Tutorials
 
MonkeyDan
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Re: LHG 60G experience

Wed Oct 10, 2018 6:52 pm

Interesting experiences.
I have some test kit going up soon which is by Google mapping 2.63Km clear LOS tower to tower.
I'm not expecting full PHY rates but am wondering what it will reach and how any rain will affect the link. My hope is that it folds back and doesn't go off completely.
Mikrotik is now claiming 4km (https://mum.mikrotik.com/presentations/ ... 743074.pdf) but I’m reluctant to try. Maybe with the new 66000 MHz channel?
 
ste
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Re: LHG 60G experience

Wed Oct 10, 2018 8:02 pm

Interesting experiences.
I have some test kit going up soon which is by Google mapping 2.63Km clear LOS tower to tower.
I'm not expecting full PHY rates but am wondering what it will reach and how any rain will affect the link. My hope is that it folds back and doesn't go off completely.
Mikrotik is now claiming 4km (https://mum.mikrotik.com/presentations/ ... 743074.pdf) but I’m reluctant to try. Maybe with the new 66000 MHz channel?
What is this: "Enabled 6GHz testing..." ??
 
antonsb
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Re: LHG 60G experience

Thu Oct 11, 2018 1:58 am

typo of 66GHz

Much higher distances are available by using 64800 and 66000 MHz frequencies
 
digitalpilot
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LHG 60 tx-power missing Re: LHG 60G experience

Thu Oct 11, 2018 3:57 am

Hi, Running 6.44Beta20

No tx-power setting for the 60Ghz interfaces.

I've got several links that are very close and I suspect we can improve the quality by turning down the TX power.

Any idea when it will be a configurable option again ??

I've checkd, WinBox, WebFIg and CLI

Thank you
 
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Re: LHG 60G experience

Thu Oct 11, 2018 8:17 am

66000 GHz is non standard freq for this band? Will You implement 66960 GHz and 69120 GHz?
 
server8
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Re: LHG 60G experience

Fri Oct 12, 2018 10:09 am

woow grat news form mikrotik I am curios if someone has stable link over 1500+ during rain events, 4000m is very long link for 60ghz technology
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antonsb
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Re: LHG 60G experience

Fri Oct 12, 2018 12:38 pm

66000 GHz is non standard freq for this band? Will You implement 66960 GHz and 69120 GHz?
it's not a standard channel
 
server8
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Re: LHG 60G experience

Fri Oct 12, 2018 12:47 pm

Without more data on stability in rain events @66000 it's not safe to pay a licensed link :-)
66000 GHz is non standard freq for this band? Will You implement 66960 GHz and 69120 GHz?
it's not a standard channel, special permissions usually are required to operate at this frequency.
 
Lakis
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Re: LHG 60G experience

Sun Oct 14, 2018 12:11 am

server8 I have very stable link at 1750m
From MUM UK
• Major received signal sensitivity improvements
• LHG60G can reach up to 4000 m distances (depending on
used frequency)
4 km what?
Is it like LHG60G signal reached 4000m but throughput was eh, than the rain start and we lost signal.

Can someone from Mikrotik give us more info.
 
server8
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Re: LHG 60G experience

Sun Oct 14, 2018 9:30 am

What firmware version are you running on this link? Are you using 64800 or 66000?
server8 I have very stable link at 1750m
 
Lakis
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Re: LHG 60G experience

Sun Oct 14, 2018 11:51 am

What firmware version are you running on this link? Are you using 64800 or 66000?
server8 I have very stable link at 1750m
OS 6.43.2 Freq:58320. On Freq:64800 I got best RSSI around -56dB
LHG60G does not support 66000.
 
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Re: LHG 60G experience

Sun Oct 14, 2018 2:43 pm

What firmware version are you running on this link? Are you using 64800 or 66000?
server8 I have very stable link at 1750m
OS 6.43.2 Freq:58320. On Freq:64800 I got best RSSI around -56dB
LHG60G does not support 66000.
Yes it does with newest beta and only from CLI.
 
Lakis
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Re: LHG 60G experience

Sun Oct 14, 2018 5:04 pm

What firmware version are you running on this link? Are you using 64800 or 66000?
server8 I have very stable link at 1750m
OS 6.43.2 Freq:58320. On Freq:64800 I got best RSSI around -56dB
LHG60G does not support 66000.
Yes it does with newest beta and only from CLI.
but
Worldwide-unlicensed-60-GHz-frequency-bands.png
if 66Ghz is Central freq. its illegal to use.
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Re: LHG 60G experience

Sun Oct 14, 2018 9:29 pm

Use it for testing purposes only!
 
Stril
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Re: LHG 60G experience

Mon Oct 15, 2018 12:00 pm

Hi!

66GHz sounds great, but if I'm right, LHG60 uses 2000 MHz Channel bandwidth.
In this case, 65GHz would be perfect...
 
mistry7
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Re: LHG 60G experience

Mon Oct 15, 2018 12:10 pm

Hi!

66GHz sounds great, but if I'm right, LHG60 uses 2000 MHz Channel bandwidth.
In this case, 65GHz would be perfect...
Channel 64800 is near to 65000 so no need

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