X-GM-THRID: 1210635278042787950 X-Gmail-Labels: rsgb lf X-Gmail-Received: 58570c57a65098581eb03cbd48e9846b245eaf62 Delivered-To: daveyxm@gmail.com Received: by 10.64.249.16 with SMTP id w16cs88183qbh; Wed, 2 Aug 2006 14:03:01 -0700 (PDT) Received: by 10.49.90.4 with SMTP id s4mr2886673nfl; Wed, 02 Aug 2006 14:03:01 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.gmail.com with ESMTP id a24si60851nfc.2006.08.02.14.03.00; Wed, 02 Aug 2006 14:03:01 -0700 (PDT) Received-SPF: neutral (gmail.com: 193.82.116.20 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) DomainKey-Status: good (test mode) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1G8Not-0005rW-6E for rs_out_1@blacksheep.org; Wed, 02 Aug 2006 21:59:59 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1G8Nos-0005rN-OX for rsgb_lf_group@blacksheep.org; Wed, 02 Aug 2006 21:59:58 +0100 Received: from web25406.mail.ukl.yahoo.com ([217.12.10.140]) by relay1.thorcom.net with smtp (Exim 4.62) (envelope-from ) id 1G8Noo-00030L-SH for rsgb_lf_group@blacksheep.org; Wed, 02 Aug 2006 21:59:58 +0100 Received: (qmail 96576 invoked by uid 60001); 2 Aug 2006 20:59:49 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.co.uk; h=Message-ID:Received:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=jBh2Il4zSpiTBPWbyZyNO+MYKxR59zcKvR1DSVob07KIhzSaqKEZHr0DZkYYJcm6a/hoHmud7gU25WVaiqoNhgZP3hPX9hMkso7cSp9BKoh9cmPbthQS1yhNslPHvQR50OMNw+GXGU4EBsG2Ql08caKXD3mmT1w/wotbpaF/Fps= ; Message-ID: <20060802205949.96574.qmail@web25406.mail.ukl.yahoo.com> Received: from [213.78.182.231] by web25406.mail.ukl.yahoo.com via HTTP; Wed, 02 Aug 2006 21:59:49 BST Date: Wed, 2 Aug 2006 21:59:49 +0100 (BST) From: brian hodgson To: rsgb_lf_group@blacksheep.org In-Reply-To: MIME-Version: 1.0 X-Spam-Score: 0.4 (/) X-Spam-Report: autolearn=disabled,AWL=-1.438,DNS_FROM_RFC_ABUSE=0.374,DNS_FROM_RFC_POST=1.376,HTML_30_40=0.056,HTML_MESSAGE=0.001 Subject: Re: LF: 70 MHz - 4 Mtrs - off topic Content-Type: multipart/alternative; boundary="0-709781674-1154552389=:94449" Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_20_30,HTML_MESSAGE autolearn=no version=2.63 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 Status: O X-Status: X-Keywords: X-UID: 4734 --0-709781674-1154552389=:94449 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Hi Gary - I've got a Yaesu FT847 - it covers all bands top band to 70cms but it is both deaf and low power on 4m. There is a simple mod listed on the web for increasing the output power (actually the problem is very low efficiency - only 10 watts for 17 amps dc !! - the mod is supposed to increase the efficiency). I believe the poor Rx sensistivity is due to routing the 4m sigs via the 6m filters. Some folk use a pre-amp. The Rx is also deaf at 136 kHz !! I think I've got the website listed somewhere - I'll dig it out if you want to take the idea further. 73 Brian - G3YKB Gary - G4WGT wrote: Hi All, Sorry for the "off topic" subject. Just curious at the moment if anyone knows if there is any HF/VHF/UHF multi-mode transceiver has or can be modded to Tx/Rx on the 70MHz/4 metre band. 73 Gary - G4WGT --------------------------------- The all-new Yahoo! Mail goes wherever you go - free your email address from your Internet provider. --0-709781674-1154552389=:94449 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: 8bit
Hi Gary -
 
I've got a Yaesu FT847 - it covers all bands top band to 70cms but it is both deaf and low power on 4m. There is a simple mod listed on the web for increasing the output power (actually the problem is very low efficiency - only 10 watts for 17 amps dc !! - the mod is supposed to increase the efficiency). I believe the poor Rx sensistivity is due to routing the 4m sigs via the 6m filters. Some folk use a pre-amp. The Rx is also deaf at 136 kHz !! 
 
I think I've got the website listed somewhere - I'll dig it out if you want to take the idea further.
 
73 Brian - G3YKB
 


Gary - G4WGT <g4wgt@tiscali.co.uk> wrote:
Hi All,

Sorry for the "off topic" subject. Just curious at the moment if anyone
knows if there is any HF/VHF/UHF multi-mode transceiver has or can be modded
to Tx/Rx on the 70MHz/4 metre band.

73

Gary - G4WGT



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