Re: TI-H: RF link idea again


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Re: TI-H: RF link idea again



Yes, RF is a definite advantage especially if you can just hook up the calc
with a 6ft long cable to the com unit in your bag or pocket or something. 
No one would know; only those that are bright enough.


"This is the most logical route, Captain"
-= Zenon@bbs.nexes.com =-


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: From: ti-hardware@lists.ticalc.org
: To: Zenon
: Subject: TI-H: RF link idea again
: Date: November 3, 1996 8:32 PM
: 
: 
: Me again with some more q/c's about my proposed RF link.
: 
: I'll be getting very shortly a schematic for a cheap RF transmitter.
: (Thanks, CJ Oster!) I need someone to tell me how to make an RF receiver.
: Something with a coil and diode. (?) The coil tunes, but how? I'll need
: schematics for that. A WWW site would be appreciated for a GIF. TI's send
: and receive on different wires accross a link, so for RF, two differnt
: frequencies would be needed. When i slice my link, which wire sends and
: which receives? and what is the other one for? What frequencies will get
: the laes intreference? I want to stay off of the standard radio bands,
: probably below, because (i think?) above is police and whatnot. Am I
right?
: Should I try AM or FM?
: 
: All help will be greatfully acccepted in hopes of completing this project
: one day.
: Thanks again, Travis
: 
: P.S. I'm in favor of RF over IR because of this one reason: IR has to
have
: a clear path between the sender and receiver. RF can go through concrete
: walls. A definite advantage,
:    _
:  _| |_   ____   ___    _    _   _    ___   ___
: |_   _| | ___\ /   |  \ \  / / | |  / __/ |   \
:   | |   | |    | O \   \ \/ /  | |  |__ \ | O |
:   \_\   |_|    \_|\_\   \__/   |_|   \__/ |  _/
:     Travis Pettijohn  travisp@inil.com    |_|
:     http://www.inil.com/users/travisp/


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