[RFI] 8982 KHz RFI?

[KD7JYK DM09]

> So, RFI from similar equipment on both coasts, or some peculiar 
> communications mode?

Some more info...

The screen shots, and audio recordings the fellow provided came from 
SDRs several miles from his house on the east coast, so the noise is 
wide-spread at his location.  It is also heard centered on 3 different 
military HF frequencies, which is why he thought jamming.  The 
frequencies are:  8992, 11175, and 15016 kHz.

Information on the frequencies, who uses them, and how, to an extent, 
can be read here:

https://en.wikipedia.org/wiki/High_Frequency_Global_Communications_System

Kurt