Dan,
    I can't give you any suggestions other than that it would be illegal to
operate such a transmitter in the United States (I'm not sure 72 MHz is a
HAM frequency) without FCC approval. The narrow 72MHz band set apart for
remote control aircraft requires an FCC approved transmitter to operate
without a license.
    Not to be a curmudgeon or anything, but why not just use an off the
shelf Tx? They come in all flavors from very simple two channel systems for
<$75 to 11+ channel systems for >$1500. While I can understand that it would
be fun to "roll your own" and customize it to your needs, it would also be
fun to go flying without having to get a license... ain't gonna happen,
though.
    BTW, I think you can get away legally with just feeding your own signals
into a stock RF section from an el cheapo transmitter. You can buy a cheap
Tx/Rx combo and customize it to your needs, as long as you don't mess with
the RF section. I may be wrong on this though. Any of you HAMs out there
know?

- Robert



----- Original Message -----
From: "Rubin, Dan" <dan.Rubin@QWEST.COM>
To: <PICLIST@mitvma.mit.edu>
Sent: Friday, August 29, 2003 4:49 PM
Subject: [PICLIST] RC (Radio Control) Receiver Project


> Hello,
>
> I have been doing some digging to find some information needed to
> start a new project to build a RC (radio control) FM modulation
> receiver for use with 72 MHz aircraft frequencies based on one of the
> new PIC nanowatt chips.  I have come up with very little on the
> subject.  Has anyone run across any relevent articles in the web or in
> this list that may help me?  An example of an existing product can be
> found at http://www.slowfly.com/DetailPages/rffs100.html.  Any ideas?
>
> - Dan
>
> --
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>

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