temperature controlled cal



    On 08nov21 the cal diode for the 12meter was updated to be  temperature stabilized with a peltier cooler. The noise diode, fet switch, and polA,B splitter are all stabilized. Prior to this date, cal power output would vary with temperature.

    On 10nov21 we started a test that lasted for 26 hours. The setup was:

Processing the data:

Plotting the results:

    The plots show the results of the cal stability test (.ps) (.pdf)

    If we assume there is a single Electronic gain (Gel) then:

    If the temperature variation is only in Gel then Tsys/Tcal should not have a temperature dependence.
The slope that we are seeing mean either:

processing: x101/211110/moncalonoff.pro

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