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Morris Ford
Hey Chuck, Sounds like your experience?is quite a lot like mine. One difference is that I have a digital frequency meter.? I use that to transmit on a known frequency and then compare it to the frequency on the meter. The biggest problem I had? was that I never was able to get any movement of indications during calibration. I was forced to do the calibrate ?a little then check where the frequency was after that calibration The biggest problem I had using the calibrate for a small number then check, then calibrate again and check, over and over. That procedure did move the frequency but in a very random way. For example, it would be a couple of thousand off, like xmit 28,000,300 and meter 28,003,678 and I would move by +100 in the calibration. The result would be somewhere around the target frequency but sometimes above the target and sometimes below. I would then calibrate again moving by -100 and it would not come back to the prior setting. Also if I did this with small shift numbers like 5 to 10 the results were very random. Finally, I just kept calibrating over and over with random small numbers until I just happened to land on a number that was less that 30 cycles off and left it that way. I am pretty sure that when I do the BFO calibration the frequency stuff will be off. The largest issue is that calibration does not work like the documentation states in terms of being able to shift calibration while observing where the calibration is. Because of this lack of function the repeated calibration method is very difficult due to the random effect of? calibration based on the number input during calibration. My suspicion is that there is a calculation problem when trying to come up with an actual frequency change. By the way I was using a calibration in the 10 meter area to keep the power level down going to the frequency meter. Maybe this stuff will help move to discussion about calibration forward a little. Morris K7LSV On Fri, Dec 13, 2019 at 3:04 PM CR <maccluer13@...> wrote:
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