From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from nm20.bullet.mail.bf1.yahoo.com ([98.139.212.179]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZydMi-0006UC-BG for ath10k@lists.infradead.org; Tue, 17 Nov 2015 10:20:01 +0000 Date: Tue, 17 Nov 2015 10:19:33 +0000 (UTC) From: Joerg Pommnitz Message-ID: <971905455.6140297.1447755573636.JavaMail.yahoo@mail.yahoo.com> Subject: TX-Power limits for ath10k based card on Linux 3.18.24 (long term support)? MIME-Version: 1.0 References: <971905455.6140297.1447755573636.JavaMail.yahoo.ref@mail.yahoo.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Joerg Pommnitz Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "ath10k" Errors-To: ath10k-bounces+kvalo=adurom.com@lists.infradead.org To: "ath10k@lists.infradead.org" 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= channel=3 hw_mode=g auth_algs=1 ignore_broadcast_ssid=0 eap_server=0 wpa=3 wpa_passphrase= 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 _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k