Return-Path: Received: (qmail 10823 invoked from network); 8 Apr 2002 14:37:40 -0000 Content-Transfer-Encoding: 8bit Received: from unknown (HELO murphys-inbound.services.quay.plus.net) (212.159.14.225) by excalibur-qfe1-smtp-plusnet.harl.plus.net with SMTP; 8 Apr 2002 14:37:40 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 5683 invoked from network); 8 Apr 2002 13:20:53 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys.services.quay.plus.net with SMTP; 8 Apr 2002 13:20:53 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 16uaVT-0004RL-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 08 Apr 2002 15:52:31 +0100 Received: from hestia.herts.ac.uk ([147.197.200.9]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 16uaVR-0004RG-00 for rsgb_lf_group@blacksheep.org; Mon, 08 Apr 2002 15:52:30 +0100 Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 16uYyY-0007Bn-00 for rsgb_lf_group@blacksheep.org; Mon, 08 Apr 2002 14:14:26 +0100 Received: from [147.197.232.252] (helo=rsch-15.herts.ac.uk) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 16uYyX-00017V-00 for rsgb_lf_group@blacksheep.org; Mon, 08 Apr 2002 14:14:25 +0100 Message-ID: <5.1.0.14.0.20020408134638.00aeb1f0@gemini.herts.ac.uk> X-Sender: mj9ar@gemini.herts.ac.uk X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Mon, 08 Apr 2002 14:07:43 +0100 To: rsgb_lf_group@blacksheep.org From: "James Moritz" Subject: Re: LF: SPM-x In-reply-to: <16tdIC-16OE9RC@fwd10.sul.t-online.com> References: <5.1.0.14.0.20020403155037.00acdf78@gemini.herts.ac.uk> <5.1.0.14.0.20020403155037.00acdf78@gemini.herts.ac.uk> <3.0.1.16.20020405160954.2c2fc068@pb623250.kuleuven.be> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: At 01:38 AM 06/04/2002 +0200, you wrote: >Hi all, > >does it make sense for a lowfer-freak buying a SPM-6 with >PS-6 from W&G (6kHz - 18.6MHz)? Dear Uwe, LF Group, I have the SPM-6 and PS6 - I do not use the SPM-6 much as a receiver for the reason given by Alberto, plus the 2kHz BFO offset, but the pair of units are extremely useful for measuring frequency response and noise levels of amplifiers and filters and so on, for which I use them a lot. The SPM-6 can operate from batteries, which would be useful for field strength measurement. The signal level can be measured over a range of >120dB with an accuracy of a fraction of 1dB. Although it is not synthesised, the frequency can be set within 100Hz anywhere in the range using the mechanical counter dial and the internal calibrator. I would certainly buy both units - the PS-6 can be connected to the SPM-6 to provide tracking generator function, which makes the combination more versatile. I paid about 70 GB pounds a few years ago for both units together with a set of manuals. Cheers, Jim Moritz 73 de M0BMU