Dear All, I recently finished building K2 #6593 and have been thoroughly impressed with the performance of the receiver. However, having done some initial tests on transmit into a dummy load, whilst monitoring the signal on another receiver, I have noticed that the the signal starts to sound noisy as the frequency is increased (i.e. 40m sounds clean but 10m sounds far from clean). I do not currently have access to a spectrum analyser in order to check this quantitatively.
The K2 is located far from my linear power supply (at least 3-4 feet) so I doubt this is due to modulation of the VCO from the 50Hz supply. If this were the case then the problem would be prevalent on all bands anyway. I wonder whether anyone could shed some light on the likely cause of this. I am beginning to wonder whether the frequency components I am hearing are actually on the transmitted signal or as a result of some mains coupling. The reason I think this is because the level of said frequency components relative to the carrier is higher on one receiver than on another (both in same room, aerial etc). Any commnets would be most welcome. Regards, Merlin Cooper M0TRX -- View this message in context: http://n2.nabble.com/K2--6593-Transmit-Performance-tp1882483p1882483.html Sent from the Elecraft mailing list archive at Nabble.com. _______________________________________________ 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
