As I remember the earlier project, it was an effort in the early or mid 1960s
to create perpetual worldwide twilight by shooting millions of tiny copper
needles into the upper atmosphere. I remember reading at the time that they
became magnetized and stuck together for that reason. In any
I have about 350 feet of quad-shield RG-6 going out to a receiving
antenna hub which has a 20-db ARR preamp on the end of the line,
followed by an 8-way relay switch. The feedline is lying on the ground,
or more correctly on the stubble of a mowed hayfield. At the moment, it
has only one BOG
Some of you may be thinking of Project West Ford, conducted in the early
1960's by MIT Lincoln Laboratory (where I work now). Many millions of tiny
needles were launched into orbit to generate an artificial scattering
medium above the earth for long range microwave communications. You must
Thanks John. There's an interesting article about Project West Ford on
Wikipedia, which describes the failed 1961 launch (the one I remember), and the
successful 1963 launch. Apparently, radio astronomers and others (including
the Soviets, of course) protested, and the project ultimately
Please pardon my repeating myself, but this thing has really got me
buffaloed, and I've found that this is the place where the most
knowledgeable people about this sort of thing hang out
I am feeding DC down my feedline to the ARR preamp in the RX antenna
hub, and also to the relays and the
Hello Pete,
Now here's the mysterious part. If I remove the DC power from the
preamp, the 20-meter signals drop from S9 to barely audible. This is
also noticeable, but just barely, on the 1550 KHz signal. Is it possible
that the preamp, which is between the feedline and the primary of the
Replies interspersed - thanks for all the ideas.
73, Pete N4ZR
The World Contest Station Database, updated daily at www.conteststations.com
The Reverse Beacon Network at http://reversebeacon.net, blog at
reversebeacon.blogspot.com,
spots at telnet.reversebeacon.net, port 7000 and
How does the signal level from a BOG compare to the signal level from an
elevated Beverage? I'm sure the output from a BOG is less. But how much
less? Enough to require a remote preamp? I've always wondered.
I --and many others-- have found a remote preamp on an *elevated* Beverage
to be totally
Ive said several times that my 500' BOG's dont need a preamp. The signal
level may be 5-6dB lower than the elevated ones in the same direction but
thats more likely due to signal angle.
One or two on here keep claiming 500' wont work and I say it all depends
upon the ground.mine is about
Very possible on your farm Mike, time to experiment I'd say.
Carl
KM1H
- Original Message -
From: Mike Waters mikew...@gmail.com
To: topband topband@contesting.com
Sent: Sunday, March 11, 2012 9:19 PM
Subject: Re: Topband: How Good is Good Enough?
Thanks, Carl!
Seems to me that
I'd bet that a lot of folks who hang out here know Jim George, N3BB.I've
just finished reading his novel, and it's a real page-turner. It's the
story of a guy sort of like a lot of us techie types growing up in a
town in West Virginia in the 50s. The protagonist discovers ham radio,
gets
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