Bob - The K3 manual does not give as much detail as the KX3 manual which describes the functions as follows....
"Audio Signal Level AFV. This display shows the approximate level of the audio output, prior to the AF gain control (in other words, the AF gain control has no effect on the reading). The reading will vary with preamp and attenuator settings as well as the RF gain control. AFV is normally used in conjunction with the dBV function. "Relative audio signal (dBV). This display can be used to measure receiver sensitivity or gain/loss of various stages, or compare two signals. To use it, first select AFV and allow the voltage reading to stabilize. (This may not be possible with modulated or rapidly changing signals.) Once the signal appears stable, select dBV. You should now see a reading of around 0dBV relative to the last AFV reading. If you change the setting of the preamp or attenuator, you should see this reading change. However, it may not change as much as you expect unless you turn AGC off. (Be sure to turn AF gain down BEFORE turning AGC off, as the signal may become very loud.) Measurement of receive sensitivity (MDS) requires a calibrated 1-uV signal source such as an Elecraft XG1/2/3. These sources include instructions for measuring MDS." I hope that helps, Bob. 73 de David G4DMP In a recent message, KD7YZ Bob <kd...@denstarfarm.us> writes >Not I am seeing 99.9dBV for an RMS reading of "1.09 A". >This isn't too helpful though. Perhaps David >can elaborate on how I get to a meaningful reading. -- + - - - - - - - - - - - - - - - - + | David M Pratt, Kippax, Leeds. | | Website: http://www.g4dmp.co.uk | + - - - - - - - - - - - - - - - - + ______________________________________________________________ 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
