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How can I increase the range of the broadcast?

Open wozunck12f opened this issue 11 months ago • 3 comments

Where I live almost no radio stations exist and have no strict laws about occupying broadcast frequencies. What can I do to increase the range? Right now it only works around 2 metres with just a jumper wire.

wozunck12f avatar Dec 11 '24 06:12 wozunck12f

You could build an illegal amplifier, but I strongly do not recommend it. Even if there's no radio, there's still limit on transmitting power without license.

If you are sure you want to do it, Google something like "FM transmitter amplifier". I can't guide you any further.

creeper6530 avatar Dec 11 '24 07:12 creeper6530

If you use a longer wire, it can improve the range - we have this project running on a couple of Pi Zero Ws in our office because we all like different music :-) With a wire roughly 3 ft (90 cm) long (I cannot recall exactly how long it is), we have signals that cover the ground floor of our building and outside the building too :-) We soldered the 22 gauge wire to a female jumper, put some heat shrink around the joint, and stretched the wire out to make the antenna. And because it's not amplified, you shouldn't run into trouble with any local authorities

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Where I live almost no radio stations exist and have no strict laws about occupying broadcast frequencies. What can I do to increase the range? Right now it only works around 2 metres with just a jumper wire.

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BreakyFixy avatar Dec 11 '24 15:12 BreakyFixy

Thank you for the answers

ghost avatar Dec 12 '24 13:12 ghost