I'm not sure what software N2BJ was using but there was a complaint that the PC software was doing something to the paddle.
The contest software sends a canned CW message thats stored as text and keys the K3 via the straight key input. The CW operator uses the paddle to send other text. I'm not sure exactly what was happening, there were 2 conflicting stories, the operator claimed the paddle speed was changing. My K3 was running the beta software version 4.51 and dsp 2.76. My K3 was on 40 meters CW. The 20 meter operator was using a K2. He mentioned that the K3 was transmitting "birdies" on 20 CW and they thought that it had something to do with the switching power supply on the K3 that I provided. They switched power supplies with an analog type but it didn't help. My K3 is back in the shack and fortunatly I can run some test using another receiver or a spectrum analyzer to check the spectral purity. Here are the results; When I transmit on 7.0644 I can receive a birdie on 14.060. The transmit power on the K3 is 2 watts into a diapole 400 ohm ladder line and a home brew match box. The Icom R8500 receiver is connected to my Hygain TH-11 beam. With 100 watts, the birdie is S5. With a dead carried it sounds more like a buzzer than a birdie. It almost sounds like a bad TV antenna amplifier that transmits a drifting birdy on 6 meters but this doesn't drift. Attached is a screen shot of my Spectrum Analyzer http://elecraft.365791.n2.nabble.com/file/n7558117/K3_TX_Birdies.bmp ----- Jack WA9FVP -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-problems-during-Field-Day-tp7558117.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ 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
