Hi Frank,
It was definitely Cleveland. Got my abbreviations wrong after 60 years. :)
Thanks, Jim
On 1/8/2022 12:10 PM, Frank W3LPL wrote:
Hi Jim,
Didn't Carl Smith run CIE (Cleveland Institute of Electronics)
and not CREI (Capitol Radio Engineering Institute)?
73
Frank
W3LPL
- Original
On 1/8/2022 8:27 AM, CUTTER DAVID via Topband wrote:
Rob
I recall a discussion on here some years ago which proposed that, whilst being
an amazing antenna for top band, if you could achieve it, the broadcast model
was not necessarily the best use of resources for amateur purposes, on the
basi
Thank you Jose,
Here's an earlier Ref.. R. Keen; Wireless Direction Finding and
Directional Reception 1927 Page 75. Describes Heart-Shape Circuit (Societe
Francaise Radio Electrique) using a two turn loop with a connexion to ground
via a variable resistor. It is very much like the K9AY.
I can't comment on the folded counterpoise because I am not familiar
with it. The "broadcast model" which I take to mean 120 radials is
used because in the case of a 90 degree tower on medium wave, the
earth current intensity is far enough from the feed point to
necessitate a higher number of radi
On 1/8/2022 7:27 AM, CUTTER DAVID via Topband wrote:
I recall a discussion on here some years ago which proposed that, whilst being
an amazing antenna for top band, if you could achieve it, the broadcast model
was not necessarily the best use of resources for amateur purposes, on the
basis tha
I can only echo Jim's comments about mechanical issues with very thin
wire. I use aluminum fence wire #17 guage, and have to coil/uncoil my
radials for the mowing season. This wire works fine but tends to kink
- and breaks fairly easily when uncoiling. Once Ive used up my supply,
I'll be going back
Rob
I recall a discussion on here some years ago which proposed that, whilst being
an amazing antenna for top band, if you could achieve it, the broadcast model
was not necessarily the best use of resources for amateur purposes, on the
basis that broadcasters are mainly interested in ground wav
For medium wave, every ham who transmits with a base excited vertical
radiator should get a copy of _Radio-Electronic Transmission
Fundamentals_ by B. Whitfield Griffith, Jr. 2nd ed., Noble Pub. Co.,
Atlanta Ga., c2000, ISBN 1884932134. 638 p. Griffith is a retired
principal engineer with Contin
