Posted by
Bruce Beford-2 on
Jun 25, 2011; 7:56pm
URL: http://elecraft.85.s1.nabble.com/Boots-for-the-XG3-tp6514422p6515626.html
Ever since the XG3 firmware was updated to include CW sending capability I
have raised concerns that it's use as a beacon or hidden transmitter in a
"fox hunt" would not be legal (in the US) on VHF and up. It simple lacks
sufficient harmonic filtering. The phase noise is another issue, that cannot
be resolved by filtering. Amplifying this device would just make it worse.
The XG3 is a great piece of test equipment- no doubt. But- it is not clean
enough to use as a transmitter.
Whew. now that I have that off my chest, does anyone want to discuss the
illegality of using "/B" as a beacon identifier?
Bruce, N1RX
> My motivation in all this has been the commentary we've been seeing
> on the reflector about running an XG3 wide open into a directional
> antenna with no filtering (quite illegally, IMO), and I hadn't
> considered the noise generation question at all. When I've used my XG3
> on my K3, it has always been set at -107 dBm, and no change in the noise
> floor is observed.
> John Ragle -- W1ZI
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