Re: [Elecraft] K3 hardware AGC experiment shows promise ( KE7X config)

2011-12-05 Thread Cady, Fred
Hi Wayne, I'd be happy to try the modification. I can do it with one K3 and not with the other. For reference, here are my configurations and general operation settings when in C6. AF GAIN = high. (I'm thinking maybe to set it low) AF LIM 20 AGC DCY SOFT AGC HLD 0.30 AGC PLS NOR AGC SLP 0 AGC THR

Re: [Elecraft] K3 hardware AGC experiment shows promise ( KE7X config)

2011-12-05 Thread Mike Fatchett W0MU
Just for comparison and I don't have the K3 that we used unpacked yet so I don't know the agc settings. I use AFX all the time. ATT was almost never engaged. I never use RX equalization. RF gain was used mostly on the low bands. When I had Bose headphones I noticed that they were quite

Re: [Elecraft] K3 hardware AGC experiment shows promise ( KE7X config)

2011-12-05 Thread Peter Wollan
Fred's configuration struck me as quite surprising. With DSP at 5-700, his K3 would be using the 1000 kHz roofing filter, so there would be a substantial frequency range blocked only by the DSP. And ATT on -- why would this be attractive? I'd think to hear weak signals close together, you'd

Re: [Elecraft] K3 hardware AGC experiment shows promise ( KE7X config)

2011-12-05 Thread Ron D'Eau Claire
It's always a good idea to present the lowest-level of RF energy to the receiver input. If you can hear the band noise, any more gain at the RF is wasted and can result in various issues with strong signals near or in the passband. On the lower HF bands, the band noise is usually perfectly audible