In a message dated 22/03/05 07:38:18 GMT Standard Time, [EMAIL PROTECTED] writes:
Any modulation of the K2 PLL will now appear as sidebands to the main signal. They will be spaced at either 50Hz (Europe) or 60Hz. If the problem is intense there may be harmonics. --------------------------------------------- Take care with this test as the PC itself also can produce these effect I presume due to the PC PSU. I ended up having to put in a 600 ohm 1:1 transformer to remove the effect here with harmonics going well up towards the top end of SSB bandwidth at 100Hz intervals from 150Hz after the initial 50Hz spike. Thought it was the inclusion of an LF/RF filter system in the 230AC power input to the PC, but find I get exactly the same effect with a recently acquired laptop on it's own 230VAC SM PSU. The bottom line is before condemning the K2 check that the effect does not occur on other radios first! Bob, G3VVT _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
