I think I might know the general area of the noise source from driving around with an HT in AM mode and finding a peak in the noise.
However before further investigation and since I am not very seasoned at radio direction finding I decided to get some practice with an RFI generator.
Information on the device I built can be found here:
http://www.w0qe.com/RF_Interference/simple_rfi_generator.html
I chose an oscillation frequency of 1 MHz. This covers the whole HF band and into lower VHF frequencies. I placed a socket on the board to allow the oscillator to be swapped out for different frequencies.
RFI generator assembly |
The plan is to use this source with homebrew antennas directional and otherwise to hone my skill in finding these noise sources. Hopefully, I will be able to quickly and accurately locate real ones.
Snapshot of the RFI generator spectrum |