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Old May 24th 06, 06:13 AM posted to rec.radio.amateur.antenna,rec.radio.amateur.misc
Buck
 
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Default What happens if you pipe the output of one radio in to 2 amps?


What happens if you pipe the output of one radio in to 2 different
amplifiers, and then take the output of the two amps and send them to
two identical vertical antennas spaced a half wave apart and with
equal length feedlines from the amplifiers.

Will the output of the two amplifiers add together in directions where
the signal is in phase, or will it act like two different signals and
interfere with each other?

-Curious



I would assume the following: If you use a splitter with an equal
length of coax to the two amps, you would be able to get 100 watts out
from the radio to be 50 watts into each amp. I would suspect that you
would have double the power out to the antenna assuming you used the
same length of coax from the amps to the antenna.

Of course, you have to deal with impedance problems with the splitting
of the coax, for example, two 50 ohm cables would result in 25 ohms to
the amps. Not good. then the two 50 ohm outputs from the amps would
result in 100 ohms to the antenna, not good again....


--
73 for now
Buck
N4PGW
 
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