[Noisebridge-discuss] Help needed to debug FM transmitter.

[Jonathan Lassoff]

What would be really useful is a spectrum analyzer that can show you
the envelope of your signal over a frequency domain, rather than
voltage/time.

You might also check out the cq@ Noisebridge mailing list, on which
there are many ham radio enthusiasts who might not watch
noisebridge-discuss@ as much.

Cheers,
jof

On Wed, Jul 3, 2013 at 6:09 PM, Sriram Srinivasan <sriram at malhar.net> wrote:
> Hello all,
>
> I am new to electronics and I put together this FM transmitter kit from
> Jameco.
> http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_151239_-1
>
> It doesn't work, and I would love to know why. I was wondering if someone
> can give the circuit a once-over, tell me about my soldering, and teach me
> about cool debugging methods.
>
> I have a 100MHz oscilloscope (Rigol 1102e), and it seems like the
> transmitter is producing a carrier whose frequency seems to vary a fair bit
> (96-102 MHz). Given my oscilloscope knowledge, or lack thereof, I'm not sure
> if this is a problem for an oscilloscope that's working at the limits of its
> range.
>
> Thanks much.
>
> --sriram.
>
>
>
>
>
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