Return-Path: Received: (qmail 7098 invoked from network); 5 Jun 2001 09:23:54 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 5 Jun 2001 09:23:54 -0000 Received: (qmail 21891 invoked from network); 5 Jun 2001 09:23:01 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 5 Jun 2001 09:23:01 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 157CrK-0007Ug-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 05 Jun 2001 10:10:42 +0100 X-Priority: 3 X-MSMail-Priority: Normal Received: from d06lmsgate.uk.ibm.com ([195.212.29.1]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 157CrH-0007Ub-00 for rsgb_lf_group@blacksheep.org; Tue, 05 Jun 2001 10:10:39 +0100 Received: from d06relay02.portsmouth.uk.ibm.com (d06relay02.portsmouth.uk.ibm.com [9.166.84.148]) by d06lmsgate.uk.ibm.COM (1.0.0) with ESMTP id JAA137626 for ; Tue, 5 Jun 2001 09:51:40 +0100 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from usa.net (ss8.bld.socks.ibm.com [9.14.4.73]) by d06relay02.portsmouth.uk.ibm.com (8.8.8m3/NCO v4.96) with ESMTP id KAA104974 for ; Tue, 5 Jun 2001 10:09:04 +0100 Message-ID: <3B1CA1BE.41DE7F9B@usa.net> Date: Tue, 05 Jun 2001 11:09:18 +0200 From: "Alberto di Bene" X-Mailer: Mozilla 4.76 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org Subject: LF: Re: TS-950SDX : good for LF ? References: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Graham Phillips wrote: > Hi David / Alberto, > > I did use my TS950SD on 136 kHz, although I have pensioned it off at present > with a move to the FT1000MP. Note that it is an SD and not the latter SDX > model. I did not make any modifications to front-end filters, but after > using Dave's TS850 on our GU expedition, noticed that it was rather deaf in > comparison. If it would be helpful, I would be pleased to blow the dust off > and check it's sensitivity on a sig-gen. > [...] Hello Graham and David, thanks for your messages. Graham, you confirm my first impression, that my previous TS850 was quite more sensitive on LF... There is no need you measure its sensitivity, thanks anyway. What however you could do for me, if you have time, is to check the schematic to see if there are significative differences wrt the TS850 in the front-end filters. I bought it second-hand, and unfortunately the schematic diagrams were missing. My hope is that there is an attenuator, similar to that present in the 490 - 1600 kHz band, also in the lower band. Were this the case, my soldering iron is impatient to come into play :-) TNX es 73 de Alberto I2PHD