XV2-2T0 Version 6.5.2.1-r3
Am noticing that as configured in US region, am unable to set Transmit Power to 30 on Channel 149.
It keeps saying that my regulatory max is 21.
Did the FCC change the rules?
The regulator allows for a maximum power of 30 dbm, i.e. the strength of the signal transmission plus the gain of the antenna.
In the case of this device, the antenna gain is 9.3 dbm, adding to this the transmit power of 21 dbm, you get the FCC allowed 30 dbm 
5 Likes
Cool
I did not realize it was factoring in the antenna gain.
I find it strange that the setting itself says the range can go up to 30.
Are there regions that allow up to 39/40 dbm then?
1 Like
Yes, We have given this option to configure as we have different AP models with Tx power and antenna gain. The User allows configuring as per AP capability and country regulations.
1 Like
The XV2-2T0 max TX conducted setting is actually limited to 28dBm by design but the antenna gain, regulatory region, and channels will dictate how high it can actually be set.
Channels?
Again, regardless of which channel I set - the unit will only allow 21 max.
It presents me an error/notice about regulatory limits if I try anything over 21 on ANY channel.
Most radios will limit the amount on DFS channels, and allow higher on non-DFS.
Any idea why this should be different for the XV2-2T0 ?
1 Like
Please see the below. The upper 5GHz channels ( UNII-3) do allowed up to 27 dB so from what interface (CLI, Web UI, cnMaestro, XMS-Cloud) are you seeing the error. Perhaps send a screenshot. BTW, the CLI command “show wireless radio channels us” can be your new best friend
GWOW-XV2T0(config)# show version
GWOW-XV2T0 XV2-2T0 Two Radio Dual Band Wi-Fi 6 2x2 Integrated Omni Outdoor Access Point
Regulatory domain FCC
Software version 6.5.2.1-r3
Build date 2023-04-13T07:00:17+00:00
Device-Agent version 4.83
Serial number WLXL03H4G173
Copyright (c) 2014-2023 Cambium Networks, Inc.
System is up 0 days, 00 hours 02 minutes
Device MAC address is BC-A9-93-30-18-A4
GWOW-XV2T0(config)#
GWOW-XV2T0(config)# show wireless radios channels us
Interface: radio1 Band=2.4GHz Country:US
CHANNEL FREQUENCY(MHz) MAX-POWER EIRP
1 2412 28 36
2 2417 28 36
3 2422 28 36
4 2427 28 36
5 2432 28 36
6 2437 28 36
7 2442 28 36
8 2447 28 36
9 2452 28 36
10 2457 28 36
11 2462 28 36
Interface: radio2 Band=5GHz Country:US
CHANNEL FREQUENCY(MHz) MAX-POWER EIRP
36 5180 21 30
40 5200 21 30
44 5220 21 30
48 5240 21 30
52 5260 21 30
56 5280 21 30
60 5300 21 30
64 5320 21 30
100 5500 21 30
104 5520 21 30
108 5540 21 30
112 5560 21 30
116 5580 21 30
120 5600 21 30
124 5620 21 30
128 5640 21 30
132 5660 21 30
136 5680 21 30
140 5700 21 30
144 5720 21 30
149 5745 27 36
153 5765 27 36
157 5785 27 36
161 5805 27 36
165 5825 27 36
GWOW-XV2T0(config)#
1 Like
Please see the attached picture
I cannot set power on channel 149 to 27.
It keeps putting the error on top of the screen, as you will see in the picture.
I also currently have an ongoing (3 weeks) ticket whereas the MESH-CLIENT keeps randomly dropping
(client sends dissac) that support is unable to resolve.
This is happening enough that the users are complaining to campground management.
I have been warned by the customer that these units might have to be removed…
XV2-2T0 Two Radio Dual Band Wi-Fi 6 2x2 Integrated Omni Outdoor Access Point
Regulatory domain FCC
Software version 6.5.2.1-r3
Build date 2023-04-13T07:00:17+00:00
Device-Agent version 4.83
Serial number WLYE090ZWN05
Copyright (c) 2014-2023 Cambium Networks, Inc.
System is up 6 days, 00 hours 17 minutes
Device MAC address is BC-A9-93-30-3F-82
Interface: radio1 Band=2.4GHz Country:US
CHANNEL FREQUENCY(MHz) MAX-POWER EIRP
1 2412 28 36
2 2417 28 36
3 2422 28 36
4 2427 28 36
5 2432 28 36
6 2437 28 36
7 2442 28 36
8 2447 28 36
9 2452 28 36
10 2457 28 36
11 2462 28 36
Interface: radio2 Band=5GHz Country:US
CHANNEL FREQUENCY(MHz) MAX-POWER EIRP
36 5180 21 30
40 5200 21 30
44 5220 21 30
48 5240 21 30
52 5260 21 30
56 5280 21 30
60 5300 21 30
64 5320 21 30
100 5500 21 30
104 5520 21 30
108 5540 21 30
112 5560 21 30
116 5580 21 30
120 5600 21 30
124 5620 21 30
128 5640 21 30
132 5660 21 30
136 5680 21 30
140 5700 21 30
144 5720 21 30
149 5745 27 36
153 5765 27 36
157 5785 27 36
161 5805 27 36
165 5825 27 36
From the Web GUI of the XV2-2T0 I am seeing:
1 Like
I would not expect this operation. I would expect that you should be able to set to 27 on this portion of the 5GHz band. This needs to be looked at
I just tried via the Web UI and had no issue setting 5GHz radio to channel 149 and 27. BTW, I am using Chrome browser, not that it should matter. I suspect there is old data in your browser cache. Cam you please clear that browser cache and try again. If you still have an issue, then please try to SSH to the AP and try via CLI.
CLI commands:
wireless radio 2
power 27
save
1 Like