Successfully downloaded MCU4.17 and began experimenting with APV. It took awhile to find a weak CW signal - 20m band must be in good shape.
I did find one that was pretty spotty reception in 2.8-KHz bw; a bit better with 400-Hz. Then is turned on the APV. I could see a definite improvement once I got familiar with how to use it; signal went S=0 to S=2. That is a nice enhancement in the firmware. I will be doing primarily weak-signal CW with my K3 on 144-MHz and 1296-MHz eme. The 400-Hz filter takes some getting use to compared with 400-Hz DSP bw on my FT-847 (i.e. there is NO comparison). The 8-pole K3 xtal filter just "chops off" everything outside the narrow band. Background noise drops significantly, too. I may want to do my eme search in 2.8, then narrow bw once I find a signal to copy. Fortunately, Ihave sw can detect a carrier way below audio threshold (down to SNR= - 28 dB in a 2.8-KHz band). I tested my SSB Tx levels using TUNE and the mic (on 20m) and they indicate normal RF output so not seeing any issue on my K3/10 (16w max output) (#4030). I did play with CONFIG: PB CTRL 0.05 or 0.01; the 0.01 seemed to work with APV nicer. ----------------------------------- Sidenote: My new 1296/28 transverter was shipped on Wed. Just confirmed that I will be receiving a prototype dual-RX transverter for 144/28 MHz. Steve at Downeast Microwwave is using me as beta-tester for this new model. I will run it with my dual-polarity 2m antenna array to capture polarity-angle information using Linrad sw. This will utilize the dual-Rx in my K3. I guess you could say this will make my eme station a polarity diversity receiver. Early details: http://www.kl7uw.com/eme144.htm 73, Ed - KL7UW, WD2XSH/45 ====================================== BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-800*w, 432-100w, 1296-QRT*, 3400-winter? DUBUS Magazine USA Rep dubus...@hotmail.com ====================================== *temp not in service ______________________________________________________________ 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
