From: Joerg Pommnitz <pommnitz@yahoo.com>
To: "ath10k@lists.infradead.org" <ath10k@lists.infradead.org>
Subject: TX-Power limits for ath10k based card on Linux 3.18.24 (long term support)?
Date: Tue, 17 Nov 2015 10:19:33 +0000 (UTC) [thread overview]
Message-ID: <971905455.6140297.1447755573636.JavaMail.yahoo@mail.yahoo.com> (raw)
In-Reply-To: 971905455.6140297.1447755573636.JavaMail.yahoo.ref@mail.yahoo.com
Hello all,
I'm trying to use a COMPEX WLE600VX (see http://www.compex.com.sg:809/Datasheets/WLE600VX_Dsv1.0.2-141013-I.pdf) as an Access Point. According to the data sheet, the card should be able to transmit with about 20 dB (100mW). However, doing some measurements with a card on 2.4GHz channel 3 in 802.11g 54MBit coding I could only observe a TX power of about 7..9dB. During the measurement the card was under full load with iperf transmitting at 20..25 mbps. This is only a fraction of the stated TX power, so something strange must be going on. The measurements were done with a Marconi 6460 powermeter.
My hostapd.conf is very simple:
interface=ap
driver=nl80211
ssid2=<omitted>
channel=3
hw_mode=g
auth_algs=1
ignore_broadcast_ssid=0
eap_server=0
wpa=3
wpa_passphrase=<omitted>
wpa_key_mgmt=WPA-PSK WPA-PSK-SHA256
wpa_pairwise=TKIP CCMP
ctrl_interface=/var/run/hostapd
macaddr_acl=0
The regdb (compiled directly into the kernel) shouldn't be a problem either:
global
country 00: DFS-UNSET
(2402 - 2472 @ 40), (N/A, 100), (N/A)
(2457 - 2482 @ 40), (N/A, 100), (N/A)
(2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, PASSIVE-SCAN
(5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW, PASSIVE-SCAN
(5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, PASSIVE-SCAN
(5735 - 5835 @ 80), (N/A, 20), (N/A), PASSIVE-SCAN
(57240 - 63720 @ 2160), (N/A, 0), (N/A)
Does anybody have an idea, why the TX power seems to be so very low?
-- Regards Joerg
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next parent reply other threads:[~2015-11-17 10:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <971905455.6140297.1447755573636.JavaMail.yahoo.ref@mail.yahoo.com>
2015-11-17 10:19 ` Joerg Pommnitz [this message]
[not found] <564B5004.7070103@candelatech.com>
2015-11-17 17:02 ` TX-Power limits for ath10k based card on Linux 3.18.24 (long term support)? Joerg Pommnitz
2015-11-17 17:11 ` Ben Greear
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