The K3 S-meter can be calibrated with either the preamp on or off. I run with SMTR MD set to ABS, and I calibrate the S-meter with the preamp off because of that.
73, Don W3FPR On 11/13/2012 12:39 PM, Richard Fjeld wrote: > I think it may be due to my final comment, but first, some info. > > My pre-amp is off and the ATT is on 90% of the time. I seldom turn on the > pre-amp. With the pre-amp off, and the ATT on, I consistently hear guys > breaking in that the others in the group do not hear, and they run good > equipment. They comment on it, and believe it is due to my antenna. The > apex of my antenna is only 40 feet high. One of them has a 100 foot tower. > I believe it is due to resonance. Read on. > > I would suspect antenna not resonant, or working with a swr that is not > optimum for the frequency. (You need both.) Emphasis is given to swr for > transmit out of concern for the finals, but I discovered years ago how > important a 1.0:1 swr is for receive. Anything less is a compromise in > receive performance. > > You say "to 'hear' an S9 signal". That has me curious. S9 is RF, hearing > is AF. Still pondering.... > > The K3 is calibrated for S9 at -50 uV with the pre-amp on. This may be the > answer to your question. It could also be that you need to calibrate your > S-meter. The XG-2 works well for that. > > ______________________________________________________________ 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
