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Old March 13th 08, 12:20 PM posted to rec.radio.amateur.antenna
Cecil Moore[_2_] Cecil Moore[_2_] is offline
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First recorded activity by RadioBanter: Mar 2007
Posts: 3,521
Default Question about Length of Antenna and Loading on Circuit

Archimedes wrote:
When I increase the antenna length to say 30cms, from the recommeded
6inchs or 15cms, the circuit does not work.


The device is a super-regenerative receiver. The antenna
is part of the oscillator circuit. If you change the
length of the antenna, you change the resonant frequency
and/or possibly cause the oscillator to stop oscillating.
Either of those results will cause the receiver not to
work right.
--
73, Cecil http://www.w5dxp.com