Modify

Opened 5 years ago

Closed 5 years ago

Last modified 4 years ago

#12544 closed defect (wontfix)

Could not set txpower on TPLINK WR703N

Reported by: smartype@… Owned by: developers
Priority: high Milestone: Barrier Breaker 14.07
Component: kernel Version: Attitude Adjustment 12.09 Beta
Keywords: Cc:

Description

Version:

root@OpenWrt:~# cat /etc/openwrt_release /etc/openwrt_version 
DISTRIB_ID="OpenWrt"
DISTRIB_RELEASE="12.09-beta"
DISTRIB_REVISION="r33312"
DISTRIB_CODENAME="attitude_adjustment"
DISTRIB_TARGET="ar71xx/generic"
DISTRIB_DESCRIPTION="OpenWrt Attitude Adjustment 12.09-beta"
12.09-beta

WiFi settings:

config wifi-device 'radio0'
	option type 'mac80211'
	option channel '6'
	option macaddr 'ec:17:2f:95:23:06'
	option hwmode '11ng'
	option htmode 'HT20'
	list ht_capab 'SHORT-GI-20'
	list ht_capab 'SHORT-GI-40'
	list ht_capab 'RX-STBC1'
	list ht_capab 'DSSS_CCK-40'
	option country 'US'
	option txpower '27'
	option distant '400'

root@OpenWrt:~# iw reg get
country US:
	(2402 - 2472 @ 40), (3, 27)
	(5170 - 5250 @ 40), (3, 17)
	(5250 - 5330 @ 40), (3, 20), DFS
	(5490 - 5600 @ 40), (3, 20), DFS
	(5650 - 5710 @ 40), (3, 20), DFS
	(5735 - 5835 @ 40), (3, 30)

After rebooting:
root@OpenWrt:~# iwconfig wlan0
wlan0 IEEE 802.11bgn Mode:Master Tx-Power=18 dBm

RTS thr:off Fragment thr:off
Power Management:on

Try to set txpower is 27dbm, no error. But the txpower not changed
root@OpenWrt:~# iw wlan0 set txpower fixed 2700
root@OpenWrt:~#
root@OpenWrt:~# iwconfig wlan0
wlan0 IEEE 802.11bgn Mode:Master Tx-Power=18 dBm

RTS thr:off Fragment thr:off
Power Management:on

Try to set an value greater than 27, get error message
root@OpenWrt:~# iw wlan0 set txpower fixed 2800
command failed: Invalid argument (-22)
root@OpenWrt:~#
root@OpenWrt:~# iwconfig wlan0
wlan0 IEEE 802.11bgn Mode:Master Tx-Power=18 dBm

RTS thr:off Fragment thr:off
Power Management:on

Try to set txpower less than 18, success
root@OpenWrt:~# iw wlan0 set txpower fixed 1700
root@OpenWrt:~# iwconfig wlan0
wlan0 IEEE 802.11bgn Mode:Master Tx-Power=17 dBm

RTS thr:off Fragment thr:off
Power Management:on


root@OpenWrt:~#

Hope you can get this fixed, I can help on more tests. Thanks very much.

Attachments (0)

Change History (3)

comment:1 Changed 5 years ago by Nilfred <nilfred@…>

Invalid: Power is limited by chipset capability.
Read the box, then write a book: How to get 500 mW out from a 100 mW advertised router LOL

comment:2 Changed 5 years ago by jow

  • Resolution set to wontfix
  • Status changed from new to closed

The hardware is limited to 18dBm.

comment:3 Changed 4 years ago by jow

  • Milestone changed from Attitude Adjustment 12.09 to Barrier Breaker 14.07

Milestone Attitude Adjustment 12.09 deleted

Add Comment

Modify Ticket

Action
as closed .
The resolution will be deleted. Next status will be 'reopened'.
Author


E-mail address and user name can be saved in the Preferences.

 
Note: See TracTickets for help on using tickets.