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GL-Inet AR150 and MikroTik hAP AC lite

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AC2OG
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GL-Inet AR150 and MikroTik hAP AC lite
AR150 and hAP both flashed with firmware version 3.21.4.0 don't mesh at 5 MHz bandwidth. At 10MHz bandwidth yes. 
Is there a way to make them mesh at 5 MHz Bandwidth ?
Merry Christmas and Happy New Year

 
K6CCC
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I have a vague recollection
I have a vague recollection that one or the other of those flat out will not work at 5 MHz bandwidth.  I don't remember which one, and not even sure it was one of those.  Don't hold me to that either.
I have a couple hAPs, and two different GL-iNet nodes, but of course, not the AR150...  So I could do a test, but not your specific GL hardware.

 
nc8q
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Revisit: mikrotik-devices-and-5mhz-bandwidth
https://www.arednmesh.org/content/mikrotik-devices-and-5mhz-bandwidth

Especially:
"Generally, the lower SNR for the larger bandwith can still achieve higher thoughput  
than half the bandwidth and higher SNR that cuts the max rate in half. "
by Joe Ayers.
https://www.arednmesh.org/comment/15330#comment-15330

 
AE6XE
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See this issue:
AC2OG
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hAP AC lite
Indeed the issue is on hAP. Doing a few more tests confirmed that all my MikroTik devices (RB LDF-2nD, RB911G-2HPnD) link at 5MHz BW together and with GL-Inet AR150 as well. 
I need both -2 and -1 channels and this forced me to work at 5MHz BW
AE6XE
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Since the frequency
Since the frequency designation is at center of bandwidth, ch -2 @ 10 and 5 MHz is in compliance of part 97, but 20 MHz is not. Possibly other reasons to not use 10MHz channel?
AB7PA
Comparison diagram

Here is a comparison chart of the differences between the two.  It's unfortunate that the Mikrotik hAP ac lite has that hardware issue, but the AR750 might be a good alternative for you.

K6CCC
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hAP not 20 MHz BW only.
The hAP does handle 10MHz bandwidth just fine.
AC2OG
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Here in Italy
You are right Joe! Moreover:
A). if I have a 10MHz BW node at 2,397 MHz, for sure I can't use a 2,402 MHz 10MHz BW co-located node.
B) Here, in Italy, the regulations of part 97 and part 15 are a bit different than in the U.S.A.
Thanks for your support
I3RKE/AC2OG
nc8q
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What are your frequency privileges?
What are your frequency privileges for 802.11n emissions? Are you indicating that you have no 900, nor 3400, nor 5800 MHz privileges? What about 2412<->2482 MHz? 73, Chuck
AC2OG
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Privileges
Thanks to AB7PA for the comparison

For Chuck:
We don't have 900 and 3,400 MHz bands. We do have Channels on 5,765 and 5,835 MHz and also on 2,300 to 2,450 MHz for selected channels with restrictions and in ca-habitation with other services.
To build up my emergency network I can count on two frequencies at 5 GHz and two on 2,4GHz.
Of course, more frequencies/channels are better for an efficient mesh, but I must do with what I can count on. 
 
nc8q
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2,300 to 2,450 MHz - two on 2,4GHz.

Leo:

One 10 MHz bandwidth channel on 2397 and
two 20 MHz bandwidth channels on 2412 and 2437 MHz ( falls within 2,300 to 2,450 MHz )
= three channels on 2.4 GHz.

Note that channel '-1' sits on the lower band edge of the US channel '1' at 20 MHz bandwidth.
IOW, one half of the modulation falls withing the channel '1' 20 MHz band-space.
This may not be an issue in your country.
I hope this helps,
Chuck

 

AC2OG
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AR750
Question for AB7PA:
In the table chart, you mention only one LAN port, but I see three RJ45 of that one is a WAN, I suppose.
So the LAN ports seem to be two. Is it possible to further expand the LAN ports with a dump switch?
K6CCC
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Only one LAN port
One is WAN, one is DtD, and one for LAN.
 
AE6XE
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The port configuration is
The port configuration is documented -- scroll down to  "Ethernet Port Usage" section -- in the github README:

https://github.com/aredn/aredn

for the AR750
 
  • Left Port with internet globe icon: WAN (untagged)
  • Middle Port with "<..>" icon: DtDLink (vlan 2)
  • Right Port with "<..>" icon: LAN (untagged)
Yes, a dumb switch could be connected to the LAN port to extend the ports.

Joe AE6XE

 
AC2OG
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AR750S-Ext (Slate)
Is the AR750S-Ext (Slate), AREDN suitable as well
nc8q
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No, NOT AR750S-Ext (Slate)
AE6XE
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I am building this image in

I am building this image in my private builds as I type this -- working to upgrade to latest openwrt 21.02.1 release.     If you have the AR750S-Ext device in hand, I am looking for hardware and individuals to test my images :) .   Separately contact me at callsign at arrl dot net, if able and interested. 

Joe AE6XE

KI5PGJ
private build request

sent email

73
Liz
KI5PGJ
 

AC2OG
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private mail
Joe, I'm mailing you.

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