I adjusted my IF gain for maximum S/N at I don't remember what frequency. (Probably should have used 32MC but didn't.) The resulting gain was significantly below the standard value.
FWIW, Dave Wise SWL (inactive) ________________________________ From: r-390-boun...@mailman.qth.net <r-390-boun...@mailman.qth.net> on behalf of Jacques Fortin <jacque...@videotron.ca> Sent: Friday, October 4, 2024 10:40 AM To: 'Ing. Giovanni Becattini' <giovanni.becatt...@icloud.com>; 'Bob Camp' <kb...@n1k.org> Cc: r-390@mailman.qth.net <r-390@mailman.qth.net>; 'Larry Haney' <larry41...@gmail.com> Subject: Re: [R-390] Official specs We should also take into account the setting of the IF gain (R-519). I do not know if the procedure promoted by Chuck Rippel (Y2K-R3. Page 9-88) is the best one or not. This procedure uses the IF deck self-generated noise to adjust the gain... But from unit to unit, the mileage may vary a lot, and the global measured sensitivity also... Any comments ?? 73, Jacques, VE2JFE in Montreal ______________________________________________________________ R-390 mailing list Home: http://mailman.qth.net/mailman/listinfo/r-390 Help: http://mailman.qth.net/mmfaq.htm Post: mailto:R-390@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ R-390 mailing list Home: http://mailman.qth.net/mailman/listinfo/r-390 Help: http://mailman.qth.net/mmfaq.htm Post: mailto:R-390@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
