I can't answer your question without measuring your particular KX3, and about the only thing I can do is quote the specification of +/- 1 ppm over 0 to 50 degC. You can better that with the Temp Compensation.
I don't think doing the Temperature Compensation will make a 'hash' of anything, but if you have such fears, save the configuration before you do that. It is a time consuming process, but it is not difficult. Plan about 2 hours to accomplish that process - you don't even have to open the KX3.
73, Don W3FPR On 3/26/2014 8:59 AM, Jack Chomley wrote:
Tonight I have been experimenting on PSK31 at 3 watts and 5 watts. In my shack the OSC Temp is about 38 deg and transmitting my CQ call about every 60 seconds @ 3 watts takes the OSC Temp to 39 deg, on RX it drops back to 38 deg. At 5 watts it goes up to 41 deg, but immediately settles back to 38 deg. My question is, what would the estimated frequency change be, per degree of OSC Temp change? I am trying to work out the total freq shift between the start and the end of my PSK31 transmission. Now, I have not done the OSC temp compensation routine to my radio. Trying not to go down this road in case I make a hash of it :-)
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