Andrew
Very interesting, that is my presentation, but my updated early terminated loop
reference was from Harold H. Beverage patent applied 1938 and issue 1941 owned
by RCA
U.S. Patent 2,247,743 Jul 1, 1941 Broadband Uni-directional Shortwave Antenna
http://www.google.com/patents/US2247743?dq=%22harold+h+beverage%22#PPA3,M1
Yes, the HWF is really a Beverage antenna. Hehehe.
Would you send me more information so I can update my History of the Flag
antenna?
JC
N4IS
-----Original Message-----
From: Topband [mailto:topband-bounces@contesting.com] On Behalf Of Andrew Ikin
Sent: Sunday, September 06, 2015 5:53 PM
To: k1fz@myfairpoint.net; topband@contesting.com
Subject: Re: Topband: Waller Flag Question
Bruce wrote on Sept 6.
Snip <
Check it out
http://www.qsl.net/k4fk/presentations/WF-receiver-antennas-SFDXAs.pdf >
Bruce, ref to the link above there is a gap in the "History of the Flag
Antenna" The earliest fef. to the Terminate loop I have found is in Keen’s
Wireless Direction Finding 1927 Ed. Page 75. Keen describes a two turn
resistance terminated loop used by Societe Francaicse Radio-Electrique. It
resembles the K9AY and uses a similar operation to create a cardiode.
73
Andrew Ikin
G8LUG
_________________
Topband Reflector Archives - http://www.contesting.com/_topband
_________________
Topband Reflector Archives - http://www.contesting.com/_topband
|