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krithivenkat
Participant

Join Date: Jul 2007
Posts: 2

transmitter / receiver

07/19/2007 3:38 AM

dear friends,

i want to transmit a tempreture and receives in remote end. i need a circuit diagram for trasmitter and receiver in two various frequency for my project. pl help me

thank u
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Crabtree
Guru

Join Date: Jul 2007
Location: Commissariat de Police, Nouvions, occupied France, 1942.
Posts: 2599
Good Answers: 77
#1

Re: transmitter / receiver

07/19/2007 4:03 AM

If doing it by electric cable, a simple 4-20mA industry-standard current loop will do it, using a temperature transmitter at one end and a display at the other. All of these things are available off-the-shelf.

If doing it by radio link, then a commercial telemetry system between the transmitter and the display replaces part of the 4-20mA link. Again, all available off-the-shelf.

In Nouvions we use a thermometer and a pair of binoculars...

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Bill ML
Power-User

Join Date: Jul 2007
Location: Orlando
Posts: 242
Good Answers: 3
#2

Re: transmitter / receiver

07/19/2007 8:21 PM

Yes, our originator needs to better define how he is wanting to accomplish this (by wire or RF(radio).
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krithivenkat
Participant

Join Date: Jul 2007
Posts: 2
#3
In reply to #2

Re: transmitter / receiver

07/20/2007 1:43 AM

hai i want wireless system
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Bill ML
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Join Date: Jul 2007
Location: Orlando
Posts: 242
Good Answers: 3
#4

Re: transmitter / receiver

07/20/2007 2:53 PM

What range/distance? Also, what did you mean about "two various frequency".

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