[Elecraft] Case for XG2

[Scott Ellington]

That's correct.  To measure MDS you have to reduce the XG2 signal with an external attenuator to around -140 dBm. Leakage from the XG2 into the receiver by radiation may make that impossible.  This also depends on how well the receiver itself is shielded, as well as how well the cables to it are filtered, etc.  

One easy way to tell if you have a leakage problem is to actually listen to the receiver as you increase the attenuation.  The signal should quite abruptly drop below the noise and become completely inaudible.

I found that with the K3, the leakage from the unshielded XG2 was too high, though it worked fine with another transceiver.  This, of course, is no shortcoming of the K3;  that other transceiver outweighs it about 6 to 1.

Scott  K9MA



On Oct 29, 2010, at 5:46 PM, Matt Zilmer wrote:

> Probably because polycarbonate is a ineffective shield against stray
> RF exiting the XG2 by radiation rather than conduction.

Scott Ellington
Madison, Wisconsin
USA