[Elecraft] XG3 and IMD testing

[Wayne Burdick]

The XG3's phase noise is a constant -105 dBc/Hz. This is pretty good  
for a miniature, wide-range RF generator that runs from a 9-V battery,  
and great for MDS tests (sensitivity), signal tracing, filter  
alignment, and S-meter calibration. But it is not suited to high-level  
IMD testing of receivers like K3's. That requires a signal generator  
with a lower noise floor.

73,
Wayne
N6KR