Return-Path: Received: (qmail 951 invoked from network); 28 Feb 2001 08:50:16 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by extortion.plus.net with SMTP; 28 Feb 2001 08:50:16 -0000 Received: (qmail 23403 invoked from network); 28 Feb 2001 08:50:18 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 28 Feb 2001 08:50:18 -0000 Content-Transfer-Encoding: 8bit Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 14Y2Dj-0002d4-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 28 Feb 2001 08:44:27 +0000 Received: from bob.dera.gov.uk ([192.5.29.90]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 14Y2Df-0002cz-00 for rsgb_lf_group@blacksheep.org; Wed, 28 Feb 2001 08:44:23 +0000 X-Priority: 3 X-MSMail-Priority: Normal Received: by bob.dera.gov.uk; (8.8.8/1.3/10May95) id IAA05421; Wed, 28 Feb 2001 08:46:17 GMT Received: (qmail 5581 invoked from network); 28 Feb 2001 09:36:09 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from gauntlet.mail.dera.gov.uk (172.16.9.10) by baton.dera.gov.uk with SMTP; 28 Feb 2001 09:36:09 -0000 Received: by gauntlet.mail.dera.gov.uk; id JAA23662; Wed, 28 Feb 2001 09:24:36 GMT Received: from unknown(10.71.64.31) by gauntlet.mail.dera.gov.uk via smap (3.2) id xma023610; Wed, 28 Feb 01 09:24:03 GMT Received: from FRN-MAIL-3.dera.gov.uk (unverified) by mailguard.dera.gov.uk (Content Technologies SMTPRS 4.1.5) with ESMTP id for ; Wed, 28 Feb 2001 08:48:12 +0000 Received: by frn-mail-3.dera.gov.uk with Internet Mail Service (5.5.2650.21) id ; Wed, 28 Feb 2001 08:43:10 -0000 Message-ID: <65AECDF1F89AD411900400508BFC869F0D75EE@pdw-mail-1.dera.gov.uk> From: "Talbot Andrew" To: rsgb_lf_group@blacksheep.org Subject: LF: RE: Icom IC-746 on LF Date: Wed, 28 Feb 2001 08:43:17 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset=iso-8859-1; format=flowed Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: I don't know those particular mods, but my IC746 was supplied (quite intentionally) with all band transmit capability. However, the transmitter is still inhibited when trying to operate below 1.5MHz as the PA cannot cope below this frequency. Presumably the MARS mods you mention only require transmission at a few other HF freqs so the 100kHz lower limit could be a misunderstanding / typo on the authors part. The firm supplying it told me in no uncertain terms that the guarantee was only valid for transmission in the amateur bands, but Icom confirmed the rig is quite happy transmitting over the whole HF spectrum, but trouble would come if trying to transmit in the 30 - 45MHz region as it would still be trying to use the 30MHz low pass output filter. Also VHF transmission much outside 140-150MHz would cause problems, again due to the output filter. Andy > -----Original Message----- > From: Jonathan Jesse [mailto:w1jhj@netzero.net] > Sent: 2001-02-27 18:43 > To: rsgb_lf_group@blacksheep.org; lowfer@qth.net > Subject: LF: Icom IC-746 on LF > > > > While surfing around the "net" for specifications on Icom's > IC-746 HF/VHF > transceiver, I found a modification to open the transmit > capabilities (so > called MARS/CAP mod). Reading on, I found that the author > stated that this > mod will open the transmit from 100khz to 60mhg. 100khz? > Has anyone tried > and or confirmed this? > > Thanks, > Jon W1JHJ > Jon > W1JHJ > Plymouth, MA > FN41qw > http://geocities.com/ws1k.rm > > Shop online without a credit card > http://www.rocketcash.com > RocketCash, a NetZero subsidiary > -- The Information contained in this E-Mail and any subsequent correspondence is private and is intended solely for the intended recipient(s). For those other than the recipient any disclosure, copying, distribution, or any action taken or omitted to be taken in reliance on such information is prohibited and may be unlawful.