Return-Path: X-Spam-DCC: paranoid 1002; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-0.7 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_MESSAGE,MIME_HTML_ONLY,RATWARE_GECKO_BUILD autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id t9HKG3EG022038 for ; Sat, 17 Oct 2015 22:16:03 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ZnXrH-0004Gi-TG for rs_out_1@blacksheep.org; Sat, 17 Oct 2015 21:13:39 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ZnXrH-0004GZ-KY for rsgb_lf_group@blacksheep.org; Sat, 17 Oct 2015 21:13:39 +0100 Received: from smtpout2.wanadoo.co.uk ([80.12.242.42] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.86) (envelope-from ) id 1ZnXqI-0002OW-0K for rsgb_lf_group@blacksheep.org; Sat, 17 Oct 2015 21:13:38 +0100 Received: from [192.168.1.230] ([81.156.159.110]) by mwinf5d29 with ME id WLCM1r00B2PCNmh03LCN6e; Sat, 17 Oct 2015 22:12:22 +0200 X-ME-Helo: [192.168.1.230] X-ME-Auth: bW9sbGllc0BmcmVlc2VydmUuY28udWs= X-ME-Date: Sat, 17 Oct 2015 22:12:22 +0200 X-ME-IP: 81.156.159.110 To: rsgb_lf_group@blacksheep.org References: <1981852865.20151017122027@chriswilson.tv> <56228A1F.70401@tiscali.co.uk> <562293AF.50302@mollies.freeserve.co.uk> <996C21CA85D54CCA8FAACBD2C33B4F72@White> From: Martin Evans Message-ID: <5622AB5C.7040505@mollies.freeserve.co.uk> Date: Sat, 17 Oct 2015 21:11:08 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <996C21CA85D54CCA8FAACBD2C33B4F72@White> X-Scan-Signature: c0e6e8bcdc231effb9da2003d606d9a2 Subject: Re: LF: WSPR-X Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 4452 Ah - thanks Marcus.

This gives me somewhere to start looking!

Martin  GW3UCJ.

################
Hi Martin, 
 
version r3058 is working fine here. The issue could perhaps be related to samplerate deviation. WSPR v2.11 sets up the soundcard at 48000 samples/second whereas WSPR-X is asking for 12000 s/s. Usually the ratio between the delivered samplerates is an accurate factor of four, but it depends on the soundcard driver. More than half a percent error will upset the symbol timing enough to render decoding impossible. You could check it by injecting a known audio tone and looking at the frequency in the wspr-x spectrogram.
 
Best 73,
Markus (DF6NM)
 
 

Sent: Saturday, October 17, 2015 8:30 PM
Subject: LF: WSPR-X


I've tried and tried to get WSPR-X V0.8 r3058  to decode - I'm trying
now, on 474.2kHz.

Good strong signals on the waterfall, computer time synched using
Dimension 4, but absolutely no joy at decoding.

Is there a secret to this - the older WSPR 2.0 works fine.

Or is there a later version that actually works?

Martin  GW3UCJ  Swansea.