David

Did you send that link to the piclist? Think I missed it.

Ron

On Fri, 8 May 1998, David VanHorn wrote:

> >As part of a PIC project (naturally), I need to find a transmitter /
> >reciever that will allow me to send a simple DTMF tone up to 1/4 mile.
> >I've found a number of RF data links, but I really don't need anything
> >that complicated.  Needs to be crystal controlled.
>
>
> I didn't think about it when I sent you the link, but are you making the
> DTMF,
> or does the transmitter have to do that as well?
>
> The one I sent you is an rs-232 programmable synthesized transmitter in the
> US ham 2meter band (144-148 Mhz)  There will be versions for 440 and 902-928
> also, but they are not ready yet.
>
> If you're making the DTMF, then you're all set. There's an audio input, as
> well as
> the mic input, and you can easily set it to transmit when the TTL input is
> active,
> although it was designed to run autonomously.
>

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 Ron Kreymborg                   Computer Systems Manager
 Monash University               CRC for Southern Hemisphere Meteorology
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