[RFI] Intereference Database

[Jim Brown]

I think this database could be a lot more useful if it listed specific "birdie" or 
carrier frequencies and cross referenced to specific equipment or 
equipment types that produce those frequencies. 

For example, I've tracked down specific frequencies in several HF CW 
bands that are produced by the 10BaseT Ethernet gear in my office. They 
are:

3511, 10106, 14029, 14030, 21052, and 28014.  I'm sure there are other 
frequencies associated with 10BaseT, but I'm a CW guy and this is what I've 
found. :) 

I've also learned that much of this is radiated by the CAT5 cable as a 
common mode signal, and that it can be significantly attenuated by winding 
the CAT5 cable around a ferrite core to form a choke. 

Jim Brown  K9YC