Just got around to measuring RX sensitivity on my KX3 and, boy, does it drop off severely (about -30 dB) at 1 MHz....playing with the ATU settings as others have mentioned here doesn't help
John On Fri, Aug 14, 2015 at 10:30 AM, Mark, KE6BB via Elecraft < elecraft@mailman.qth.net> wrote: > Robert, > I found that in SOME (but not all) cases, enabling the mode noted below > helps: > MCU 1.84 / DSP 1.28, 1-4-2014 > > * AM BROADCAST BAND (BCB) RECEIVE OPTIMIZATION: If you have a KXAT3 ATU > installed, you can select one of two optimizations for reception below 1300 > kHz. While in the ATU MD menu entry, tap '1' (PRE) to select either BCB NOR > (the original setting, which reduces the amplitude of received harmonic > images), or BCB=160 (a new setting that may improve receive sensitivity by > using the 160 meter ATU settings even below 1300 kHz). BCB NOR is > recommended unless you need BCB=160 in order to copy a weak AM station. You > can also improve sensitivity by using higher preamp gain settings (use the > PREAMP menu entry, which is per-band > MarkKE6BB > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6axj...@gmail.com > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
