RE: TI-H: RF Linking
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RE: TI-H: RF Linking
What your looking for is a set of very close frequencies that do
not generate any second harmonics in the same set as the second
frequency. Third harmonics are good and attenuate (If I remember
my analog college classes). There are many well known pairs and
a question to any of the electronic news groups will probably
land you someone that knows. It is probably listed in the AARL
book at most of your schools, I don't have one - but I should.
Someone also said that you can't have full duplex over a single
line. Just so you know, it is possible. I am not getting
involved in this IR or RF link project because it does not have
an application for me personally or commercial but I will help
with any tid bits of info that I think may be of interest to you
:-)
On Sunday, October 05, 1997 5:16 PM, Matthew R Price
[SMTP:pricem@juno.com] wrote:
>
>
> So far all the discussions have been assuming that we use two
> frequencies
> to transmit. Why don't we instead multiplex our RX and TX
> lines onto the
> same carrier freq. That way we wouldn't have to deal with the
> self
> induced interference of having a transmitter right next to a
> receiver.
> This would also simplify full-duplex transmition and lighten
> the power
> load for the device. I'm not an electrical engineer but I do
> have some
> basic knowledge; I'm not sure exactly what the relationship
> between the
> two freqs. should be. Doing this would also provide us with a
> much
> cleaner channel.
> Does anyone know if the calcs are capable of full-duplex, or
> would we
> need to include some sort of buffer inside the RF link module?
>
> Matthew
>
>
> "One world, one web, one program"
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>
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