I had been using a patched version of Backfire r25206 on some UBNT
Nanostation and Bullet M5 units, and getting a generous 30dBm (aka 1000mW)
reported back as default txpower:
root@nsm5-b:~# iwlist txpower
...
wlan0 unknown transmit-power information.
Current Tx-Power=30 dBm (1000 mW)
root@nsm5-b:~# iwconfig
...
wlan0 IEEE 802.11an ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=30 dBm
RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Upon upgrading to Backfire 10.03.1, I appear to only get maximum 22dBm
txpower now on the Nanostation M5 I'm testing with. Some snooping suggests
these UBNT units now have a txpower offset of 5 since r29424, i.e. such
that setting output power 22dBm would actually yield 27dBm.
https://dev.openwrt.org/changeset/29424
As for the wonderful 30dBm I was previously getting, research on the
Nanostation M5 itself seems to imply its maximum possible txpower is indeed
only 27dBm, suggesting the 30dBm figure was erroneous.
http://www.ubnt.com/downloads/nanoM5_DS.pdf
Could anyone on the list verify this from their own testing?
Thanks.
--
Ben West
http://gowasabi.net
b...@gowasabi.net
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