Tonight I used a pair of K3's in the Sprint practice. Several times I had a pileup of four or five loud stations calling me. With AGC turned on, they were all mushed together, and I couldn't copy any of them.
AGC settings: dcy soft hld 0.2 pls nor slp 000 thr 008 f 200 s 020 I tried both fast and slow agc. No joy. So I turned the AGC OFF. Now this introduces another problem - the very low threshold of the AF Limiter. The AF limiter, even at its highest setting of 030 introduces gross distortion on loud signals. This is even worse than the mushy AGC. So I transfer the headphones to the speaker output, so I can reduce the AF gain setting in an attempt to get away from the raucous AF limiter. This works for a while, until finally one loud signal blows out the K3's audio amplifier. This is the second time that has happened to me. I guess I'm a slow learner on that issue. Something really needs to be done here. My suggestions would to raise the agc threshold further, and increase the slope of the agc line (that would mean a slp setting of less than zero). The AF limiter threshold also needs to be raised, and the AF speaker output needs better protection. Dave Hachadorian, K6LL Yuma, AZ . ______________________________________________________________ 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
