Envelope-to: dave@picks.force9.co.uk Delivery-date: Fri, 01 Jul 2005 01:00:55 +0100 Received: by ptb-mxcore02.plus.net with spam-scanned (PlusNet MXCore v2.00) id 1Do8xi-0002WI-PH for dave@picks.force9.co.uk; Fri, 01 Jul 2005 01:00:55 +0100 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (PlusNet MXCore v2.00) id 1Do8xi-0002WA-Kv for dave@picks.force9.co.uk; Fri, 01 Jul 2005 01:00:54 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Do8xA-0007PX-33 for rs_out_1@blacksheep.org; Fri, 01 Jul 2005 01:00:20 +0100 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Do8x9-0007PO-8h for rsgb_lf_group@blacksheep.org; Fri, 01 Jul 2005 01:00:19 +0100 Received: from imo-m22.mx.aol.com ([64.12.137.3]) by relay2.thorcom.net with esmtp (Exim 4.51) id 1Do91o-000899-0M for rsgb_lf_group@blacksheep.org; Fri, 01 Jul 2005 01:05:09 +0100 Received: from G0MRF@aol.com by imo-m22.mx.aol.com (mail_out_v38_r1.7.) id l.1e8.3e4251b5 (25508) for ; Thu, 30 Jun 2005 20:00:06 -0400 (EDT) From: G0MRF@aol.com Message-ID: <1e8.3e4251b5.2ff5e186@aol.com> Date: Thu, 30 Jun 2005 20:00:06 EDT To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: 9.0 SE for Windows sub 5014 Subject: Re: LF: 756 PRO III on LF? Content-Type: text/html; charset=windows-1252 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-PN-SpamFiltered: by PlusNet MXCore (v2.00) Content-transfer-encoding: 8bit

In a message dated 30/06/2005 21:55:29 GMT Standard Time, laurie@g3aqc.freeserve.co.uk writes:

Thanks Laurie. I was playing with a friend's new 756 PRO III (he won it at Dayton this year!!) and it seemed very nice down below the BCB but he notices a rise of internal noise from around 250KHz down to 50KHz. The noise is also visible on the scope as a rise in the rx ambient noise floor. I take it that you don't have this problem with yours?

================== =========================

My original 756 radiates noise from the LCD display. I have to keep open feeders and any loop antenna several feet from the radio.

The original 756 has poor performance below 500kHz primarily due to transformer design, but also because of the attenuator that is permanently switched in for MF / LF reception. Even so, with a pre-amp its a good LF receiver due to the flexible DSP and other filtering.

73

David G0MRF