How to build Repeater

[wbtang]

I've a Transmitter, but the signal is weak. I need a Repeater to amplify the signal so that the Receiver is able to receive the signal. I don't have information how to build a Repeater, such a it circuitry. Kindly advise me this hardware circuit information. Thanks.

[Dingo]

Here are two general databases of circuits that might have what you are after.

www.uoguelph.ca/~antoon/circ/circuits.htm

www.commlinx.com.au/schematics.htm


I've also personally built FM transmitter kits from Oatley Elevtronics. www.oatleyelectronics.com/kits/default.html. It might not be what you are after but the one kit I built cuold take inout from a microphone but I modified it so it took input from a 3.5 stereo plug instead. I generally have have found Oatley to be realistic in their descriptions of their kits (signal strength, range etc)

Also remember different countries have different regulations when it comes to allowable unlicensed strengths of radio transmittions.

If you can take the data directly from it's source and initially tramsit it at a higher power that is going to be easier than transmitting the signal and build complex items to receive and transmit at the same time an incoming signal.

BTW what frequency are talking about and what distance do you need? What is the source? and have you tried using a different type of Atenna on the receiver?