The full range of SLP values only applies at the lower THR values. With THR>8, the lower SLP values are not effective. That is, for THR>8 there is a SLP value below which the AGC curve does not change (become steeper). At THR=15, SLP values 0-7 all result in about the same effect as SLP=7. At THR=20, the AGC curve is essentially the SLP=15 curve for all values of SLP from 0-15. The SLP=0 curve is only 1-2 dB higher than SLP=15 at S9+40dB.
THR=20 is very different than AGC=OFF. With AGC=OFF, the always-on hardware AGC allows audio levels 20+ dB higher than the least aggressive DSP AGC (THR=20, SLP=0). That's why the AF LIMiter function is available ... to protect the user's ears. Ed W0YK Drew AF2Z wrote: > >I don't get the point of THR 20 SLP 0. I assume that is > pretty much the > >same as just turning off the AGC. Dave K6LL wrote: > > That is correct for low to moderate signal levels. At high > signal levels, a pretty aggressive agc flattening kicks in, > even at slp=0. This flattening is more comfortable to deal > with than the raucous-sounding AF Limiter, which operates > only with AGC turned off. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
