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Alexing Posted - Jul 12 2005 : 01:37:44 AM
Hello again all, i come with another question.

Ok, the FM bug was constructed and the LED shines bright. I can't locate the signal with my standard FM radio. How can I pin point the transmitter's frequency or if it is even transmitting at all? Does the LED indicate whether or not the circuit is transmitting? :) :) Novice can learn too ;)
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Aaron Cake Posted - Jul 13 2005 : 09:24:06 AM
Other then the process of elimination, there's not a lot you can do. A scanner might help you sweep the frequencies.
Alexing Posted - Jul 13 2005 : 01:37:25 AM
Hello Aaron,

I apreciate the quick response and must say that I admire your craft.

Is there a cheap alternative to an oscilloscope to determine that the radio is transmitting?

P.S. I notice every that GMRS/FRS radios sold everywhere have jumped in range from 5 miles to 10 miles and beyond. The units are even getting smaller. Is the power just amplified or are there mods you can inflict on a standard GMRS/FRS handhelds to up the out range.Thank you!

Wo
Aaron Cake Posted - Jul 12 2005 : 09:32:27 AM
In the lower FM band is where you should find it. The only reliable way to actually prove it is transmitting is with a scope. The LED just indicates power.

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