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Retevis RB28 User Manual

Retevis RB28
13 pages
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User Manual
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Retevis RB28 Specifications

General IconGeneral
Frequency Range400-470 MHz
Channel Capacity16
Battery TypeLi-ion
Antenna Impedance50Ω
Maximum Deviation≤5KHz
Audio Power≥500mW
Waterproof RatingIP54
Operating Voltage3.7V DC
Modulation ModeFM
Receiver Sensitivity0.2μV (12dB SINAD)
Squelch Sensitivity≤0.2μV
Working current≤1.5A

Summary

Features and Basic Operations

Battery Installation and Management

Details the procedure for installing a Li-ion battery and explains the battery display and low battery warning system.

Radio Operation and Settings

Transmission and Reception

Explains how to transmit by holding the PTT key and receive signals, indicated by specific icons.

VOX Functionality

Details how to enable and configure the Voice Activated Transmission (VOX) feature for hands-free operation.

Specifications and Tables

General and Transmitter/Receiver Specifications

Provides technical details including frequency range, channel capacity, voltage, impedance, output power, and sensitivity.

FRS Frequency Table

Lists the specific frequencies and maximum power output for each of the 22 FRS channels.

Guarantee and Compliance

FCC Statement and RF Exposure

Provides FCC compliance information, conditions for operation, and guidelines regarding RF exposure limits.

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