Im using two pineapple6 m2 cards from 8devices. The TX power at 6GHz 20MHz should be around 28dBm. However I managed to only get a consistent reading of 18dBm. There is nothing weird in dmesg or logread. There is also the known 255dBm software bug. I can set the txpower lower but definitely not higher. Using an AP client configuration. Iw list gives 27 dBm in 6GHz channels. Host is compute module 4 RPI with external power supply so that is not an issue.
root@OpenWrt:~# dmesg | grep ath
[ 7.834920] ath11k_pci 0000:01:00.0: BAR 0: assigned [mem 0x600000000-0x6001fffff 64bit]
[ 7.843045] ath11k_pci 0000:01:00.0: enabling device (0000 -> 0002)
[ 7.849672] ath11k_pci 0000:01:00.0: MSI vectors: 16
[ 7.854637] ath11k_pci 0000:01:00.0: qcn9074 hw1.0
[ 7.859432] ath11k_pci 0000:01:00.0: FW memory mode: 2
[ 8.323412] ath11k_pci 0000:01:00.0: chip_id 0x0 chip_family 0x0 board_id 0xa2 soc_id 0xffffffff
[ 8.332262] ath11k_pci 0000:01:00.0: fw_version 0x290b8862 fw_build_timestamp 2024-09-23 10:51 fw_build_id
[ 10.075324] ath11k_pci 0000:01:00.0: htt event 48 not handled
[ 11.376048] ath11k_pci 0000:01:00.0 phy1-ap0: entered allmulticast mode
[ 11.382797] ath11k_pci 0000:01:00.0 phy1-ap0: entered promiscuous mode
root@OpenWrt:~# logread | grep ath
Tue Apr 29 13:54:10 2025 kern.info kernel: [ 7.834920] ath11k_pci 0000:01:00.0: BAR 0: assigned [mem 0x600000000-0x6001fffff 64bit]
Tue Apr 29 13:54:10 2025 kern.info kernel: [ 7.843045] ath11k_pci 0000:01:00.0: enabling device (0000 -> 0002)
Tue Apr 29 13:54:10 2025 kern.info kernel: [ 7.849672] ath11k_pci 0000:01:00.0: MSI vectors: 16
Tue Apr 29 13:54:10 2025 kern.info kernel: [ 7.854637] ath11k_pci 0000:01:00.0: qcn9074 hw1.0
Tue Apr 29 13:54:10 2025 kern.info kernel: [ 7.859432] ath11k_pci 0000:01:00.0: FW memory mode: 2
Tue Apr 29 13:54:10 2025 kern.info kernel: [ 8.323412] ath11k_pci 0000:01:00.0: chip_id 0x0 chip_family 0x0 board_id 0xa2 soc_id 0xffffffff
Tue Apr 29 13:54:10 2025 kern.info kernel: [ 8.332262] ath11k_pci 0000:01:00.0: fw_version 0x290b8862 fw_build_timestamp 2024-09-23 10:51 fw_build_id
Tue Apr 29 13:54:12 2025 kern.warn kernel: [ 10.075324] ath11k_pci 0000:01:00.0: htt event 48 not handled
Tue Apr 29 13:54:13 2025 kern.info kernel: [ 11.376048] ath11k_pci 0000:01:00.0 phy1-ap0: entered allmulticast mode
Tue Apr 29 13:54:13 2025 kern.info kernel: [ 11.382797] ath11k_pci 0000:01:00.0 phy1-ap0: entered promiscuous mode
root@OpenWrt:~# iw list
Wiphy phy1
wiphy index: 1
max # scan SSIDs: 16
max scan IEs length: 440 bytes
max # sched scan SSIDs: 0
max # match sets: 0
Retry short limit: 7
Retry long limit: 4
Coverage class: 0 (up to 0m)
Device supports AP-side u-APSD.
Available Antennas: TX 0xf RX 0xf
Configured Antennas: TX 0xf RX 0xf
Supported interface modes:
* managed
* AP
* monitor
* mesh point
Band 4:
HE Iftypes: managed
HE MAC Capabilities (0x000b9a181040):
+HTC HE Supported
TWT Requester
Dynamic BA Fragementation Level: 1
BSR
Broadcast TWT
OM Control
Maximum A-MPDU Length Exponent: 3
RX Control Frame to MultiBSS
A-MSDU in A-MPDU
OM Control UL MU Data Disable RX
HE PHY Capabilities: (0x1c604c89ffdb839c110c00):
HE40/HE80/5GHz
HE160/5GHz
HE160/HE80+80/5GHz
LDPC Coding in Payload
HE SU PPDU with 1x HE-LTF and 0.8us GI
STBC Tx <= 80MHz
STBC Rx <= 80MHz
Full Bandwidth UL MU-MIMO
DCM Max Constellation: 1
DCM Max Constellation Rx: 1
SU Beamformer
SU Beamformee
MU Beamformer
Beamformee STS <= 80Mhz: 7
Beamformee STS > 80Mhz: 7
Sounding Dimensions <= 80Mhz: 3
Sounding Dimensions > 80Mhz: 3
Ng = 16 SU Feedback
Ng = 16 MU Feedback
Codebook Size SU Feedback
Codebook Size MU Feedback
PPE Threshold Present
HE SU PPDU & HE PPDU 4x HE-LTF 0.8us GI
Max NC: 3
STBC Rx > 80MHz
HE ER SU PPDU 4x HE-LTF 0.8us GI
HE ER SU PPDU 1x HE-LTF 0.8us GI
TX 1024-QAM
RX 1024-QAM
HE RX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: MCS 0-11
4 streams: MCS 0-11
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE TX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: MCS 0-11
4 streams: MCS 0-11
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE RX MCS and NSS set 160 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: MCS 0-11
4 streams: MCS 0-11
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE TX MCS and NSS set 160 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: MCS 0-11
4 streams: MCS 0-11
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE Iftypes: AP
HE MAC Capabilities (0x000d9a181040):
+HTC HE Supported
TWT Responder
Dynamic BA Fragementation Level: 1
BSR
Broadcast TWT
OM Control
Maximum A-MPDU Length Exponent: 3
RX Control Frame to MultiBSS
A-MSDU in A-MPDU
OM Control UL MU Data Disable RX
HE PHY Capabilities: (0x1c604c88ffdb839c110c00):
HE40/HE80/5GHz
HE160/5GHz
HE160/HE80+80/5GHz
LDPC Coding in Payload
HE SU PPDU with 1x HE-LTF and 0.8us GI
STBC Tx <= 80MHz
STBC Rx <= 80MHz
Full Bandwidth UL MU-MIMO
DCM Max Constellation Rx: 1
SU Beamformer
SU Beamformee
MU Beamformer
Beamformee STS <= 80Mhz: 7
Beamformee STS > 80Mhz: 7
Sounding Dimensions <= 80Mhz: 3
Sounding Dimensions > 80Mhz: 3
Ng = 16 SU Feedback
Ng = 16 MU Feedback
Codebook Size SU Feedback
Codebook Size MU Feedback
PPE Threshold Present
HE SU PPDU & HE PPDU 4x HE-LTF 0.8us GI
Max NC: 3
STBC Rx > 80MHz
HE ER SU PPDU 4x HE-LTF 0.8us GI
HE ER SU PPDU 1x HE-LTF 0.8us GI
TX 1024-QAM
RX 1024-QAM
HE RX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: MCS 0-11
4 streams: MCS 0-11
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE TX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: MCS 0-11
4 streams: MCS 0-11
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE RX MCS and NSS set 160 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: MCS 0-11
4 streams: MCS 0-11
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE TX MCS and NSS set 160 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: MCS 0-11
4 streams: MCS 0-11
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE Iftypes: mesh point
HE MAC Capabilities (0x00098a081040):
+HTC HE Supported
Dynamic BA Fragementation Level: 1
BSR
OM Control
Maximum A-MPDU Length Exponent: 1
RX Control Frame to MultiBSS
A-MSDU in A-MPDU
OM Control UL MU Data Disable RX
HE PHY Capabilities: (0x1c600c80fd5b811c100000):
HE40/HE80/5GHz
HE160/5GHz
HE160/HE80+80/5GHz
LDPC Coding in Payload
HE SU PPDU with 1x HE-LTF and 0.8us GI
STBC Tx <= 80MHz
STBC Rx <= 80MHz
SU Beamformer
SU Beamformee
Beamformee STS <= 80Mhz: 7
Beamformee STS > 80Mhz: 7
Sounding Dimensions <= 80Mhz: 3
Sounding Dimensions > 80Mhz: 3
Ng = 16 SU Feedback
Codebook Size SU Feedback
PPE Threshold Present
HE SU PPDU & HE PPDU 4x HE-LTF 0.8us GI
Max NC: 3
HE ER SU PPDU 1x HE-LTF 0.8us GI
HE RX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: MCS 0-11
4 streams: MCS 0-11
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE TX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: MCS 0-11
4 streams: MCS 0-11
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE RX MCS and NSS set 160 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: MCS 0-11
4 streams: MCS 0-11
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE TX MCS and NSS set 160 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: MCS 0-11
4 streams: MCS 0-11
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
Frequencies:
* 5955.0 MHz [1] (27.0 dBm)
* 5975.0 MHz [5] (27.0 dBm)
* 5995.0 MHz [9] (27.0 dBm)
* 6015.0 MHz [13] (27.0 dBm)
* 6035.0 MHz [17] (27.0 dBm)
* 6055.0 MHz [21] (27.0 dBm)
* 6075.0 MHz [25] (27.0 dBm)
* 6095.0 MHz [29] (27.0 dBm)
* 6115.0 MHz [33] (27.0 dBm)
* 6135.0 MHz [37] (27.0 dBm)
* 6155.0 MHz [41] (27.0 dBm)
* 6175.0 MHz [45] (27.0 dBm)
* 6195.0 MHz [49] (27.0 dBm)
* 6215.0 MHz [53] (27.0 dBm)
* 6235.0 MHz [57] (27.0 dBm)
* 6255.0 MHz [61] (27.0 dBm)
* 6275.0 MHz [65] (27.0 dBm)
* 6295.0 MHz [69] (27.0 dBm)
* 6315.0 MHz [73] (27.0 dBm)
* 6335.0 MHz [77] (27.0 dBm)
* 6355.0 MHz [81] (27.0 dBm)
* 6375.0 MHz [85] (27.0 dBm)
* 6395.0 MHz [89] (27.0 dBm)
* 6415.0 MHz [93] (27.0 dBm)
* 6435.0 MHz [97] (27.0 dBm)
* 6455.0 MHz [101] (27.0 dBm)
* 6475.0 MHz [105] (27.0 dBm)
* 6495.0 MHz [109] (27.0 dBm)
* 6515.0 MHz [113] (27.0 dBm)
* 6535.0 MHz [117] (27.0 dBm)
* 6555.0 MHz [121] (27.0 dBm)
* 6575.0 MHz [125] (27.0 dBm)
* 6595.0 MHz [129] (27.0 dBm)
* 6615.0 MHz [133] (27.0 dBm)
* 6635.0 MHz [137] (27.0 dBm)
* 6655.0 MHz [141] (27.0 dBm)
* 6675.0 MHz [145] (27.0 dBm)
* 6695.0 MHz [149] (27.0 dBm)
* 6715.0 MHz [153] (27.0 dBm)
* 6735.0 MHz [157] (27.0 dBm)
* 6755.0 MHz [161] (27.0 dBm)
* 6775.0 MHz [165] (27.0 dBm)
* 6795.0 MHz [169] (27.0 dBm)
* 6815.0 MHz [173] (27.0 dBm)
* 6835.0 MHz [177] (27.0 dBm)
* 6855.0 MHz [181] (27.0 dBm)
* 6875.0 MHz [185] (27.0 dBm)
* 6895.0 MHz [189] (27.0 dBm)
* 6915.0 MHz [193] (27.0 dBm)
* 6935.0 MHz [197] (27.0 dBm)
* 6955.0 MHz [201] (27.0 dBm)
* 6975.0 MHz [205] (27.0 dBm)
* 6995.0 MHz [209] (27.0 dBm)
* 7015.0 MHz [213] (27.0 dBm)
* 7035.0 MHz [217] (27.0 dBm)
* 7055.0 MHz [221] (27.0 dBm)
* 7075.0 MHz [225] (27.0 dBm)
* 7095.0 MHz [229] (27.0 dBm)
* 7115.0 MHz [233] (27.0 dBm)
* 5935.0 MHz [2] (disabled)
valid interface combinations:
* #{ managed } <= 1, #{ AP, mesh point } <= 16,
total <= 16, #channels <= 1, STA/AP BI must match, radar detect widths: { 20 MHz (no HT), 20 MHz, 40 MHz, 80 MHz, 80+80 MHz, 160 MHz }
HT Capability overrides:
* MCS: ff ff ff ff ff ff ff ff ff ff
* maximum A-MSDU length
* supported channel width
* short GI for 40 MHz
* max A-MPDU length exponent
* min MPDU start spacing
max # scan plans: 1
max scan plan interval: -1
max scan plan iterations: 0
Maximum associated stations in AP mode: 128
Supported extended features:
* [ RRM ]: RRM
* [ SET_SCAN_DWELL ]: scan dwell setting
* [ FILS_STA ]: STA FILS (Fast Initial Link Setup)
* [ CQM_RSSI_LIST ]: multiple CQM_RSSI_THOLD records
* [ CONTROL_PORT_OVER_NL80211 ]: control port over nl80211
* [ ACK_SIGNAL_SUPPORT ]: ack signal level support
* [ TXQS ]: FQ-CoDel-enabled intermediate TXQs
* [ ENABLE_FTM_RESPONDER ]: enable FTM (Fine Time Measurement) responder
* [ STA_TX_PWR ]: TX power control per station
* [ CONTROL_PORT_NO_PREAUTH ]: disable pre-auth over nl80211 control port support
* [ SCAN_FREQ_KHZ ]: scan on kHz frequency support
* [ CONTROL_PORT_OVER_NL80211_TX_STATUS ]: tx status for nl80211 control port support
* [ FILS_DISCOVERY ]: FILS discovery frame transmission support
* [ UNSOL_BCAST_PROBE_RESP ]: unsolicated broadcast probe response transmission support
* [ BSS_COLOR ]: BSS coloring support
* [ POWERED_ADDR_CHANGE ]: can change MAC address while up
root@OpenWrt:~# iw dev
phy#1
Interface phy1-ap0
ifindex 5
wdev 0x100000001
addr c4:93:00:3a:35:0f
ssid OpenWrt
type AP
channel 5 (5975 MHz), width: 80 MHz, center1: 5985 MHz
txpower 18.00 dBm
multicast TXQ:
qsz-byt qsz-pkt flows drops marks overlmt hashcoltx-bytes tx-packets
0 0 35 0 0 0 0 5324 35
root@OpenWrt:~# iwinfo phy1-ap0 txpowerlist
255 dBm (2147483647 mW)