I just completed assembly of a 30m/20m K1 up through the point of Receiver calibration. Everythings has gone smoothly and all tests and alignment steps were completed successfully. I can hear a 1 uV signal very clearly on both bands.
However, there appears to be some internal periodic noise. It is very raspy in nature and it repeats every 12 seconds. I'm guessing it is being generated by one of the two internal CPUs. I hear it on battery power with a shorting plug installed on the antenna, on any frequency and on both bands. Basically I hear a low level burst noise that lasts for 1/2 second, with about a 1/2 second gap, followed by a 3 second burst, then silence for about 8 seconds. The entire pattern repeats every 12 seconds While it is very low level, comparable to the 1 uV signal that I aligned the receiver with, it seems to modulate even strong S9 signals. Does anyone know what this noise is and how to get rid of it? Anyway, this glitch aside, I'm very excited. 73, Bob, WB4SON ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
