Listen Technologies 863 MHz Portable Radio User Manual


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8
Design Guide
The range of a portable transmission will vary from one application to another. There are many different
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Range varies depending on environment.
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• Move transmitter and receivers away from metal objects.
• Orient both transmitting and receiving antennas vertically.
Key concepts in designing a portable FM system
Use this section of the guide to choose the channel settings for the transmitter and receivers.
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interference free channel.
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the transmitting antenna.
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chart on page 61 to determine the appropriate channels.
Channel Selection
Range
EXAMPLE: 2 channel system use channels 01 & 11
3 channel system use channels 01, 06 & 11
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