[ARC5] LDE

[D. Platt]

Gents,

A number of yeasr ago, I worked for a lab (ITT-EPL) that was in the 
forefront of Over-the-Horizon Radar (OTH) and ionospheric sounding 
development.  We used frequencies up to the lower VHF region, but 
primarily in the HF spectrum, of course.  The thing is, I don't recall 
return delays into the multi-second region?  Many return signals 
appeared to be mostly to be "extensions" of the original pulses, to the 
human ear.  Of course, those signals coming back from Eastern Europe and 
the Middle East and Asia were, of course, predictably longer.  That I 
never heard very long dalay signals indicates nothing as I would have 
had to be at one of the sites at the exact time one of these phenomena 
occurred.  The power we used was in the 3-10 KW.  My first S-Line 
transmitters were much-modified 32S-1's the company surplussed out.....  
That was in the early days, of course.  I recall we used Rhode &Schwartz 
programmable signal generators, later.

Jeep - K3HVG