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Repeater Input and Output Frequency Calculator

Calculate a repeater input or output frequency from a known frequency and signed shift.

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Repeater input / output frequency

Apply a positive or negative repeater shift to a known frequency.

Repeater input--

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About this calculator

How to use it

Choose whether the known frequency is the repeater input or output, then enter the frequency and signed offset.

Understanding the result

Confirm the current band plan, licence conditions and repeater listing before transmitting. Offsets vary by band and individual system.

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Planning estimate

Use this calculator as a practical starting point. Check critical radio, electrical and installation work with suitable test equipment and current licence requirements.