Basic FM Transmitter System = Transmitter + Aerial + Audio Limiter
The Basic FM Transmitter layout is
shown here. This is a mono system and is intended for Low Power FM
Stations. (It could be made stereo by simply adding a Stereo Coder and
using a stereo limiter). The Limiter - Compressor is essential because
without it, your transmitted audio levels will be up and down like a
yo-yo! The transmitting aerial must be mounted as high as possible above
the ground and it must be OUTDOORS. Remember, Antenna height is far
more important than transmitter power when it comes to good signal
range! FM Broadcasting has never been so easy and the NRG Kits Workshop
is here to help with technical assistance.
A 13.8 Volt Power Supply is required in many cases. However, with the
Transmitter type shown, the DC power supply is built in and the front
terminals also provide the DC power for the Limiter Compressor. The only
other thing needed is a length of low loss RG213 Coax cable to connect
the transmitter to the aerial. This length will usually be at least 20
metres to reach the aerial.
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