Originally Posted by Wotname
...I haven't run the numbers yet but you could start small, say a quad stacked 15 element yargi. Failing that, move onto a large(ish) parabolic dish and circular
Pardon my wandering off topic, but the mention of large parabolic dish brought to mind an old anecdote, which, if I may, I will relate:
Some time in the past history
of orbiting satellites for communication of amateur radio
(OSCAR), built by radio
amateurs and carried into orbit by who knows what sort of connections or influence with NASA or the Air Force, I recall
a situation in which an accident
in the management or supervision of one of those satellites resulted in a hopeless situation that disabled the satellite
As I recall
, an error was made and a transmitter on the satellite
was accidentally turned on that should not have been, resulting in the desensitization of the 432-MHz command receiver that could be used to fix this error. The amateur radio stations that were controlling the satellite could not generate a signal up to it that was strong enough to overcome the desensitization of the command receiver from the other local transmitter. The situation was not looking good.
However, again using who knows what sorts of connections and influence, an arrangement was made to borrow a very large parabolic antenna
and to connect to it the appropriate 432-MHz amateur radio transmitter. The big parabolic antenna--owned either by some big university in California
or perhaps by the Air Force, I don't recall precisely--was then configured to track the OSCAR. The full amateur legal
limit of 1-kW (or perhaps more) was pumped into the big parabolic, resulting in an ERP of many megawatts.
This produced enough signal at the satellite's command receiver to overcome the desensitization, and the transmitter causing the problem was switched off.
By the way, radio amateurs have, for some time, been using the moon as a reflector, and communicating bouncing signals off it back to earth. This does require a rather substantial antenna array, but, lately, using new digital signal methods which permit
much weaker signals, it apparently has become possible to accomplish with more modest antennas.
OK, enough of my sidebar. Back to warm beer.
I have a story for that, too. Living in SE Michigan many folks around here are working in the automobile business. I had a good boating
friend and neighbor who worked for General Motors as a designer
. He threw a holiday party one December, inviting a lot of buddies from work. At that party a lot of the banter was, naturally, related to automobiles. It was there that I heard this joke:
Q: Why do the English
drink warm beer?
A: Lucas Electrics