Topband: Two Wire Beverage antennas

[donovanf at starpower.net]

Hi Bruce, 


Many of the two wire Beverage antennas used by RCA, AT&T and other 
companies in the 1920s were much more sophisticated than the simple 
two wire Beverage used by many Topbanders. While we typically select 
one of the two outputs of a two wire Beverage to cover one of two 
directions, the patent filed in 1921 by E.W. Kellogg describes how RCA 
and others used both outputs of a two wire Beverage to produce a deep 
steerable rear null. 


http://www.google.com/patents/US1487339 


Topbanders can very easily use a two wire Beverage to produce a deep 
steerable rear null by using the DX Engineering NCC-1 Variable Phasing 
Controller to combine both outputs of a two wire Beverage: 


http://www.dxengineering.com/parts/dxe-ncc-1 


73 
Frank 
W3LPL 





----- Original Message -----

From: "K1FZ-Bruce" <k1fz at myfairpoint.net> 
To: "Topband" <topband at contesting.com> 
Sent: Wednesday, July 15, 2015 2:52:23 PM 
Subject: Topband: Two Wire Beberage antennas 

21 Sept. 1921 Radio Corporation of America purchased the International Radio & Telegraph (ship-shore) station at Belfast Maine. 

6 October 1921 Mr & Mrs, David Sarnoff came to the Belfast radio station site and stayed at the Windsor hotel. 

Early in 1923 Engineers H.P. Hassner, Carl Erikson, & Samuel "Wintrop" Dean, including Albert B. Moulton came to Belfast to construct a long-wave radio station. 
The Marconi Cable company was hired to install a ~10 mile two wire wave antenna South-west to Moody mountain to receive England. 
A single wire wave antenna to the Northeast was not possible as Belfast Bay was close by in that direction. 

Albert B. Moulton applied for a Patent for a two wire system November 1, 1922. 

http://www.qsl.net/wa3mej/Articles/Beverage%20Patents%20&%20Notes/1556122_MOULTON.pdf 

In the WW II period, I was 10 years old 1944. I walked under the wires, that were still there, when my father took me rabbit hunting. My job was to jump on the large brush piles to disloge the bunnies. 


73 

Bruce-K1FZ 
www.qsl.net/k1fz/index.html 





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