Re: strange antenna effect...

onehappymadman@xxxxxxxxx wrote:

I got a new used car, that has only a tape player (remember those?) and
radio.

I have a portable CD/mp3 player, and I also have a little transmitter I
got from Target a few years back, that takes a signal from a
walkman/CD/mp3 player, and broadcasts it to an FM channel of my choice
(frequency is adjustable by a screw in the back).

When driving with my contraption, I noticed that if I touched the
antenna of my transmitter, the volume on my car radio increased
significantly.


Possible, if it is one of those cheap free-running oscillator things where touching the antenna de-tunes its frequency. Then the radio might sit on 88.9MHz and you xmit has drifted a few hundred kHz up or down. That is why I plunked down a few bucks more for our TV modulator and got one with a digitally programmable PLL transmitter.

Regards, Joerg

http://www.analogconsultants.com
.

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