Return-Path: Received: (qmail 21213 invoked from network); 19 Oct 2003 14:34:19 -0000 Received: from unknown (HELO netmail00.services.quay.plus.net) (212.159.14.218) by mailstore with SMTP; 19 Oct 2003 14:34:19 -0000 Received: (qmail 22029 invoked from network); 19 Oct 2003 14:34:19 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from post.thorcom.com (193.82.116.20) by netmail00.services.quay.plus.net with SMTP; 19 Oct 2003 14:34:14 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ABEcS-0005ZW-MY for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Oct 2003 15:33:20 +0100 Received: from [165.212.11.110] (helo=cmsrelay01.mx.net) by post.thorcom.com with smtp (Exim 4.14) id 1ABEcQ-0005ZN-Vj for rsgb_lf_group@blacksheep.org; Sun, 19 Oct 2003 15:33:19 +0100 Received: from uadvg137.cms.usa.net (165.212.11.137) by cmsoutbound.mx.net with SMTP; 19 Oct 2003 14:32:46 -0000 Received: from usa.net [151.38.68.22] by uadvg137.cms.usa.net (ASMTP/dibene@usa.net) via mtad (C8.MAIN.3.11E) with ESMTP id 670HJsoGr0363M37; Sun, 19 Oct 2003 14:32:43 GMT X-USANET-Auth: 151.38.68.22 AUTH dibene@usa.net usa.net Message-ID: <3F92A08E.7090903@usa.net> Date: Sun, 19 Oct 2003 16:32:46 +0200 From: "Alberto di Bene" User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <000c01c3957f$fbe6d4a0$47cdfc3e@l8p8y6> <000f01c395cc$88ece780$045bfea9@RSGB613192> <000201c39639$a74dc560$c8e4fc3e@l8p8y6> In-reply-to: <000201c39639$a74dc560$c8e4fc3e@l8p8y6> Subject: LF: Re: 136 khz LF Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Level: **** X-Spam-Status: No, hits=4.2 required=5.0 tests=FAKE_HELO_USA_NET,HTML_30_40,HTML_MESSAGE,HTML_TITLE_EMPTY autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Spam-Rating: 1 Content-transfer-encoding: 8bit hamilton mal wrote:

Using speclab this is what was indicated. Nothing calibrated. Relative measurement signal above noise floor 55 db.

I expect to be really meaningful the system needs to be calibrated. Next time I will try the calibrated LEVEL METER

The signal was very strong, likwise M0BMU is also very strong. Large dog bones across the screen !!!!!!

Whatever sound card program you use, the indicated level is that of the audio signal reaching
the sound card, and as such is totally dependent from many factors unrelated to the real
field strength of the radio signal. If you change the volume setting of the radio, or the slider
level in the Windows mixer, what is indicated will change.

That dB (not dBm) indication is meant just for relative measurements.

73 Alberto I2PHD