I use both digital and analog tuners with no problems at all
btw, we use the SAME kit ck222.

Regards

Tal Bejerano
AMC - ISRAEL


-----Original Message-----
From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]On
Behalf Of Herbert Graf
Sent: Sunday, June 09, 2002 7:35 AM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [EE]: FM transmitter problems


Actually after I sent the original message I tried it with my walkman, with
the same results. The source while testing has also not been constant, I've
tried my walkman, a CD player and the PC, all with the same results, so I
believe I've covered all those bases. You mention you used a BA1404 kit and
it worked fine, was that with a digital tuner as a receiver or with an
analog tuner? Thanks for any info. TTYL

>
> My first thought was to try another receiver like a portable
> Walkman, but you
> said you tried another receiver with the same results. So, not a receiver
> problem but I'd be sure with a third receiver anyhow. If both
> transmitters are
> doing the same thing, then it doesn't sound like that could be
> the answer. FM
> broadcast transmitters don't create anything weird that could cause this
> phenomenon. The only thing left is your PC. Have you tried
> plugging in a set of
> headphones to verify your source is stable? It could be something
> the PC is
> doing to the sound card. Other than that, you have a pretty
> strange problem. I
> use two of the Ramsey kit FM stereo transmitters. One is a tuned
> LC using the
> BA1404 and one is a fully synthesized programmable transmitter
> that is very
> stable. I have excellent results with both.
> Rick

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