• Dual mode for Digital and Analog Radio. Automatic recognition of digital and analog systems. Use for DMR, dPMR, D-STAR, C4FM, analog FM, etc.

1, Portable and lightweight

RT91     measures just 139x115x36mm and weighs just 700g making it the perfect     companion for field operation without adding a lot of weight.

2, Cleaner Output signal

Harmonic     filters on the input allow the amplifier to transmit a cleaner output     signal. It will transmits a cleaner, purer signal from your handheld     radio

3, Support the Handheld Radio.

Our Amplifier RT91   will   also work with any handheld radio that outputs 2W–6W. Please   check the   frequency range before buying this Amplifier, if your radio   with the UHF   range, please choose UHF. Otherwise, choose the VHF.

4, Supported Amplification Modes

This     Amplifier RT91 operates from 136-174 MHz or 400-480 MHZ, can be used     for analog FM, P25 Phase 1, C4FM (System Fusion), NXDN, IDAS, dPMR, and     MPT1327 modes.

5, Built In Loud-Speaker

When you connect     your handheld radio with the radio control cable; the amplifier will   use   it's own loud 4W built-in speaker to broadcast the incoming audio.

Three Primary Modes of Amplification:


Radio Controlled
Connect to the antenna output of the handheld transceiver to the RF-IN connector on the rear panel of the amplifier with the Radio to Amplifier RF cable. Transmit and receive right on the Handheld radio - while your output signal is amplified.




Accessory Controlled
Connect to the antenna output of the handheld transceiver to the RF-IN connector on the rear panel of the amplifier with the Radio to Amplifier RF cable. Connect a speaker microphone, headset, or compatible accessory to the radio. Transmit and receive right on the accessory connected to the Handheld radio - while your output signal is amplified.



Amplifier Controlled
Connect the speaker microphone to the MIC jack on the front panel of the amplifier. Connect to the antenna output of the handheld transceiver to the RF IN connector on the rear panel of the amplifier with the Radio toAmplifier RF cable. Connect the accessory port of your radio to the Control jack on the front panel of the amplifier using the Amplifier Control Cable. Transmit and receive using the speaker microphone on the amplifier while incoming audio is relayed through the loud amplifier speaker.