[CW] Fwd: [SSN] SAQ Reception

[Richard Knoppow]

    Beverage has at least one technical paper in the Bell System 
Technical Journal. I think these antennas were used for the first 
SSB radio-telephone circuits to England c.1928. I may have the 
dates mixed. Beverage's antennas were terminated at the far end 
to make them unidirectional but they work fine without the 
termination but become bidirectional. Because they operate on the 
tilt of the wavefront they work best close to the ground and over 
ground of relatively poor conductivity. All spelled out in the 
old text books. Beverage was one of the great researchers from 
Bell Labs.

On 7/5/2020 3:09 PM, D.J.J. Ring, Jr. wrote:
> Dr. Harold H. Beverage, W2BML installed a 23 mile long "Traveling Wave
> Antenna" first at Rocky Nook, Long Island for American Marconi (later
> RCA) and also at KPH
> As Darrell Emerson correctly stated, it ran under bridges to get that
> long.  In 1920s it was difficult to buy that amount of real estate
> even for American Marconi and RCA!
>
> Dr. Harry always said that his "Wave Antennas" could be noisy, but it
> was the signal to noise that improved.
>
> He had put a 23 mile version in the 1920s for Radio Central so they
> could receive Europe. Those antennas still work well
> on MF, but of course, I don't think any civilian group has HH Beverage
> Wave Antennas miles long, even the Arctic and Antarctic stations have
> abandoned them as they were of critical use during Sudden Ionospheric
> Disturbances (SIDs.).
>
> I attach a QST article by Dr. Beverage originally from 1922.
>
> I tried a shortened Beverage antenna and I also tried using insulated
> wire run under salt water in a salt marsh with excellent results.
>
> 73
>
> DR
>
> DR
>
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> =30=

-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL