[Elecraft] XG50 frequency stability

[Mike]

Just as a minor FYI, here are the results of my new XG50 output during its 
burn-in period.  This was over 7 hours instead of the recommended 8, as the day 
was over and I wanted to go home :-)

This was measured at ~12 volts supply, 70 degrees, to an HP frequency counter (I 
forget the model).  Note - this counter is out of cal, but I doubt it's very far 
out.

Initial frequency: 49.379999 MHz (oscillator is 49.380 MHz nominal), for the 
first several seconds after power up.

After ~  2.5 hours: 49.379912 MHz

After 5 hours, till power off at 7 hours: 49.379925 MHz

All values are a complete non-issue when compared to Elecraft's spec of +/- 247 
Hz nominal, and stability of +/- 2 Hz.

73,

Mike, KW1ND