[Lowfer] HF data burst

[riese-k3djc at juno.com]

I hear that on 75 assumned it wes some kind of government test

Bob K3DJC
On Thu, 13 Oct 2016 11:34:22 -0400 Dexter McIntyre W4DEX
<dexter.mc at gmail.com> writes:
> For probably over a year I have been hearing on multiple HF 
> frequencies 
> what sounds like a momentary burst of 4 data pulses.   It often 
> repeats 
> every few minutes then either quits or moves frequency.  A sample 
> just 
> recorded on 60 meters at the link below:
> 
> http://www.w4dex.com/hf-data-4pluse.wav
> 
> I don't believe it's local as others at a distance have reported 
> hearing 
> the same.
> 
> Any idea what the source is?
> 
> Dex
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