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wfm very low audio
I'm sorry, my mistake...
The device I have works on WFM (I receive it perfectly with a converted FM receiver (an FM receiver converted to receive up to 125MHz). It certainly works on 123MHz. It certainly works with the 23.7MHz crystal very well, even on my Oscilloscope I...
perbedaan wfm dengan nfm
Well, Thanks again, you really helped me a lot!
As I'm talking about a transmitter (It's NFM now), and as I need it to be as WFM as it can be, I understand that I have to amplify the Audio or change the Varicap.
What I'm trying to do is to change both frequency and...
clarify wfm
Dear
Thank you very much for the explanation, and here is what I found on Google
It makes me now confused: If I take a CCO stage and an Audio stage and try to modulate the CCO (connecting the Audio to a varicap) - what changes do I have to do in order to get a WFM or NFM output...
wfm modulation
I've tried to understand it from some articles (google) - but it's still not so clear to me...
In other words, how can I (if I can...) change a circuit from NFM <>WFM?
Any example will be very appreciate.
TIA,
I had a small voice transmitter on the 433MHz band, build around an SMD IC (8 leads) and an SMD crystal - as I remember 12-13MHz.
I'm trying to find any details of this IC - but all ICs I find (from Maxim for example) are ASK/FSK ICs.
I've tried to google it without success.
Any ideas?
TIA,
Nina
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