-----Mensaje original-----
De: Mike Keitz <mkeitz@JUNO.COM>
Para: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
Fecha: jueves 7 de mayo de 1998 7:47
Asunto: Re: RC Transmitter

>Many 2-channel RC transmitters contain the Signetic chip (NE5040??) which
>is actually a 7-channel encoder.  You just need to connect additional
>pots to the unused pins.  Such a modified transmitter would still be
>"dumb," so including a PIC for digital processing makes a lot of sense.
>
Mike,

    Thank you for the ideas! I realyy have to rethink on all of them, and
also have a look on the Signetics chip.

    The National chip will be used in a first prototype, since it has
everything included, but -on draft- there is a much more sophisticated
receiver with a double conversion, two intermediate frecuencies, etc, but
for a much larger design.

    The first blimp to be built will be -more or less- one meter length and
will lift only 300 grams, and will only be usable indoor.

    When something more solid than the ideas on paper will come, I'll
publish something to this list. Please think that i will be giving two to
four hours per Week! to this project.

    Thanks again,

     Andres.