On Wed, 11 Aug 1999 09:14:13 -0500 Adam Bryant <adamdb@JUNO.COM> writes:

>Maybe one of the RF gurus on this list can give us a high-level
>explanation of how you can make a transmitter out of a PIC and a loop
>of wire.

The transmitter is formed from the loop of wire and the transistor near
it, along with a few capacitors.  The PIC doesn't generate the radio
signal, it just outputs data as a pulse code that turns the transmitter
on and off.  A similar transmitter is built into the PalmPad controller
which is also part of the Firecracker kit.

The little loop of wire near the female DB-9 appears to be used to tune
transmitter on frequency.  A lot cheaper than a variable capacitor I
would imagine.



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