[BC] Power Side
Barry Mishkind
barry at oldradio.com
Wed Feb 25 01:57:57 CST 2009
>From: jmjpcc at bellsouth.net
>... a station becomes more "listenable" with Power-Side in the
>chain. I believe it is that with symmetrical sidebands there can be
>sideband cancellation as a result of scatter and re-radiation.
>Because Power-Side produces asymmetrical sidebands, there cannot be
>as much cancellation. I was involved with the installation of
>Power-Side at four stations, and saw the same results each time. One
>DA-2 station with had a very deep nighttime null (.15 mV/m at a
>point three miles from the 50KW transmitter). Driving to the point,
>I could always tell the point was "in" by the fact that the station
>became unintelligible on the car radio. After the installation of
>Power-Side, approaching the point made the radio a little more
>noisy, but fully listenable, and the point was still .15 mV/m.
This is a very interesting point!
I hadn't thought of that aspect. (Of course,
having the experience you have had that
many others have not gives you a better
vantage point.)
I would imagine that the station got a couple of
further miles out of the null that was previously
useless.
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