Most "horrible wide signals" observed on the P3 are produced by electronic sources like switching power supplies (including battery chargers) and the clocks associated with various digital devices. Some may be in your own home, others in the homes of neighbors. They typically show up as a typical bell-shaped curve peaking at some frequency, and other similar peaks spaced anywhere from 10 kHz to 50 kHz apart. The 33V DC power supply that SteppIR sold me for their controller is REAL NASTY, especially on the higher HF bands. I had to replace it with a home brew linear supply so that I could work on those bands.
73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
