[RFI] Signals on 160

[Gary Smith]

I've been encountering some strong signals 
on 160 recently. I made some approximate 
guesses at the frequency using the P3 
markers to measure them. Here's the 
signals at 1:20PM local time with a center 
frequency of 1.848.67

The main signals are about 42 KHz apart.
The lesser spikes in-between appear at 
somewhat regular intervals. 

http://doctorgary.net/spikes-on-p3.jpg

Here's the measured values of the main 
signals

http://doctorgary.net/frequencies.jpg


Any idea what might be the source of 
signals spaced like this?

73,

Gary
KA1J