TX Power Change Issue on Intelbe200 & ax210

[Aytek]

Hi,

It's Ali from Airties wireless company. 

We have Minix PCs that have Intel be200 and ax210 Wi-Fi cards. These Minix PCs are used on some RF performance measurements such as throughput tests under different RSSI levels by changing digital attenuator.

We have several questions about the Intel be200 and ax2100 Wi-Fi card as follows. Could you please help us on this case?

• We use the below commands to get information about the Intel client and change the TX power of the Intel clients respectively. Are they correct? Is there any other command to get and set transmit power of the Wi-Fi cards?
  Get Information: iw dev wlan0 info
  Change TX power: sudo iw dev wlan0 set txpower fixed 2000 (2000 to set 20dBm)

• Do these Intel Wi-Fi cards change their transmit power under different RSSI levels automatically without set any command? We are not sure whether these cards set their own transmit power under different conditions.

Intel BE200 2x2 client: configuration:
broadcast=yes driver=iwlwifi driverversion=6.9.1-custom-mlo firmware=86.fb5c9aeb.0 gl-c0-fm-c0-86.uc ip=192.168.1.39 latency=0 link=yes multicast=yes

Intel AX210 2x2 client: configuration:
broadcast=yes driver=iwlwifi driverversion=5.19.0-0.deb11.2-amd64 firmware=72.daa05125.0 ty-a0-gf-a0-72.uc latency=0 link=no multicast=yes

Regards,

Ali

[ACarmona_Intel]

Hello Aytek,

Thank you for posting in our communities.

Please allow me time to further check your concern.

I will get back to you as soon as I already have an answer on our case.

Best regards,

Carmona A.

Intel Customer Support Technician

[ACarmona_Intel]

Hello Aytek,

Thank you for patiently waiting on my response.

For me to provide you with appropriate information for your query, please provide the complete model of your Mini PC's.

Best regards,

Carmona A.

Intel Customer Support Technician

[ACarmona_Intel]

Hello Aytek,

I am checking in with you to see if you already have the information that I requested in order for me to continue to further investigate our issue.

Thank you!

Best regards,

Carmona A.

Intel Customer Support Technician

[ACarmona_Intel]

Hello Aytek,

This is only a quick follow-up; I just wanted to check in with you, as I haven't received any feedback from you.

Thank you.

Best regards,

Carmona A.

Intel Customer Support Technician

[ACarmona_Intel]

Hello Aytek,

I hope you are doing well.

Since I have not heard back from you, I will now be closing our case.

If, in case you are just busy and still needed assistance, please submit a new question on our community: https://community.intel.com/, as this thread will no longer be monitored.

Thank you.

Best regards,

Carmona A.

Intel Customer Support Technician

[Aytek]

Hi Carmona, 

Sorry for the late reply, I've seen your comment now

I would like first to ask you questions about the TX power of the Intel Wi-Fi6 or 7 cards. 

• We use the below commands to get information about the Intel client and change the TX power of the Intel clients respectively. Are they correct? Is there any other command to get and set transmit power of the Wi-Fi cards?
  Get Information: iw dev wlan0 info
  Change TX power: sudo iw dev wlan0 set txpower fixed 2000 (2000 to set 20dBm)

The second question I would like to learn about its working mechanism. 

• Do these Intel Wi-Fi cards change their transmit power under different RSSI levels automatically without set any command? We are not sure whether these cards set their own transmit power under different conditions.

You can find our Wi-Fi7 be200 client configurations below. 

*-network
description: Ethernet interface
product: Wi-Fi 7(802.11be) AX1775*/AX1790*/BE20*/BE401/BE1750* 2x2
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:01:00.0
logical name: wlan0
version: 1a
serial: a0:b3:39:64:81:e7
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical
configuration: broadcast=yes driver=iwlwifi driverversion=6.11.0-14-generic firmware=92.67ce4588.0 gl-c0-fm-c0-92.uc latency=0 link=no multicast=yes
resources: irq:18 memory:a1300000-a1303fff

Regards, 

Ali