There's quite a list of things for the R7000 on the mods.dk website. Jim KQ6EA
--- On Tue, 10/6/09, Greg D. <ko6th_g...@hotmail.com> wrote: > From: Greg D. <ko6th_g...@hotmail.com> > Subject: [amsat-bb] Re: [Hearsat] Opinions on receivers > To: sme...@mara.org > Cc: amsat-bb@amsat.org, lmol...@hotmail.com > Date: Tuesday, October 6, 2009, 8:41 PM > > REALLY? Great tip! It's never been a great > receiver, but anything will help. > > I'll do some Googling around, but would you happen to have > a pointer to more detailed information on the repair? > > Thanks, > > Greg. > > > > Date: Tue, 6 Oct 2009 23:24:49 -0400 > > From: sme...@mara.org > > To: ko6th_g...@hotmail.com > > CC: amsat-bb@amsat.org; > lmol...@hotmail.com > > Subject: Re: [amsat-bb] Re: [Hearsat] Opinions on > receivers > > > > Greg D. expunged (ko6th_g...@hotmail.com): > > > > > > > > But, as a general coverage receiver or scanner, > it's 20-year age clearly shows. First of all, it's a > bit deaf by modern standards. The local NWS weather > channel is an S6 or S7, being fed by a very large TV > antenna, with Preamp, in the attic. It's full scale on > my HT with its rubber duck antenna in the shack. My > S-band equipment (Drake 2880, and all that) barely gets > above S1 or S2. You get the idea. > > > > Keep in mind that the lack of receive sensitivity in > the R7000 most likely is due to old leaking electrolytic > caps. Specifically, there is a DC-DC converter board on the > underside of the receiver that ends up generating broadband > noise as the caps fail over time. I recently rebuilt this > board and have regained nearly all of the sensitivity that > I've lost. I suspect that if I replaced more electrolytics I > could have it back to factory specs. > > > > > > -Steve > > > > N1JFU - http://n1jfu.blogspot.com - > sme...@twitter > > > > > > > _________________________________________________________________ > Your E-mail and More On-the-Go. Get Windows Live Hotmail > Free. > http://clk.atdmt.com/GBL/go/171222985/direct/01/ > _______________________________________________ > Sent via amsat...@amsat.org. > Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur > satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > _______________________________________________ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
