I aslo have both an SDR-1000 & an FT-847, & I find exactly the opposite. I can hear signals Q5 on the SDR that are not detectable on the FT-847.
A 1uV signal source, such as the Elecraft XG-1 or XG-2, used to check both rigs is the next obvious step. 73, Ray, K9DUR >From: Alan NV8A <[EMAIL PROTECTED]> >To: flexradio@flex-radio.biz >Subject: Re: [Flexradio] Preamp issue? >Date: Thu, 01 Mar 2007 12:33:44 -0500 > >But Dan's not just comparing S-meter readings. He's talking about being >able to hear signals on the FT-847 that he can't hear on the SDR-1000. > >I have no ax to grind in this, as I have neither rig. > >73 > >Alan NV8A > > >On 03/01/07 12:00 pm Tim Ellison wrote: > > > Also, don't trust the S meter on the FT-847. If you have calibrated > > using a signal of known strength, the SDR-1000 is much more accurate. > ><snip> > > >> I've been happily using my SDR-1000 as an IF rig for transverters for > > > >> a month now. It seemed to be performing fine. This weekend I put up > > > >> dipoles on 10 and 20m and decided to see how it worked on HF and I > >> was disappointed. I hooked the same antenna to my FT-847 and was > >> hearing stations 3-4 S units better. There were stations that I > >> couldn't even hear on the SDR-1000. I guess the reason I thought it > >> was working well before was because the transverters/preamps are > >> doing all the heavy lifting. > >> > >> I went to the list archives and read about similar problems and tried > > > >> all the suggestions I could find to fix it. I also re-calibrated the > > > >> radio using WWV as the reference but it made no difference. I'm > >> using PowerSDR 1.8.0 with the preamp on high and the AF set at 90. > >> As a last resort I went through the FA-66 setup guide and found one > >> problem. I can't get the sample rate to go higher than 9600. I get > >> an invalid sample rate error if I try to set it to 19200. I'm not > >> sure that this is related to the problem or not but I thought I'd > >> mention it. Anyone have any ideas? > >> > >> Is anyone on the list near Danbury, CT? I'd be interested in > >> bringing my radio over and comparing it to see if the problem is > >> software or hardware related. > > >_______________________________________________ >FlexRadio mailing list >FlexRadio@flex-radio.biz >http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz >Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ >FlexRadio Homepage: http://www.flex-radio.com/ > >FlexRadio Knowledge Base: http://kb.flex-radio.com/ _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com/ FlexRadio Knowledge Base: http://kb.flex-radio.com/
