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What happens if I use a PL-259 or UHF connector with a cellular amplifier or amplifier/repeater?

April 26, 2017amplifier cellular connector happens pl-259 Repeater UHF

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What happens if I use a PL-259 or UHF connector with a cellular amplifier or amplifier/repeater?

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A PL-259 or UHF connector is rated for a maximum of 300 MHz. Cellular frequencies are 800 and 1900 MHz. A PL-259 or UHF connector will leak 80% or more of the RF signal. No signal will get to the antenna, and RF frequency leaking out of the connector will cause an oscillation.