Introduction
Welcome to the Retevis MA1 Mobile Transceiver. This user manual provides essential information for operating your UHF/VHF FM radio safely and effectively. Designed for dependable communication, the MA1 incorporates advanced technology for robust performance.
Key Features
- Detachable control panel for flexible installation.
- Large LCD display for clear status indication.
- Wide receiving range covering VHF (108-180MHz) and UHF (400-520MHz) bands.
- Independent operation of left and right bands, with simultaneous reception capabilities (V+V, U+U, V+U).
- Cross-band repeater and full duplex operation.
- Support for CTCSS (50 sets) and DCS (104 sets) digital sub-tones.
- DTMF/2-tone/5-tone signaling options.
- Voice compression and scrambling encryption.
Safety and Precautions
Important Safety Information:
- Always read the manual for safe usage and RF energy awareness.
- Avoid configuring the transceiver while driving.
- Do not transmit with high output power for extended periods to prevent overheating.
- Never connect to a 24V battery; use only a 13.8V DC (±15%) power source.
- Ensure secure mounting to prevent detachment during vehicle motion or collisions.
- Be aware of potential interference with other electronic equipment in your vehicle.
Installation and Operation
The manual details mobile installation procedures, including mounting bracket use and DC power cable connection. It covers basic operations such as adjusting volume and squelch, selecting bands (A/B), and switching between VFO, Memory Channel (MR), and Call Channel modes. Learn how to transmit, select power levels, and utilize various menu settings for customization.
Specifications Overview
The Retevis MA1 offers a channel capacity of 999 channels and supports a wide range of channel spacing. Key specifications include:
- Output Power: 50W (VHF) / 40W (UHF)
- Frequency Bands: VHF (136-174 MHz), UHF (400-480 MHz), Aviation (108-133.995 MHz), FM Radio (64-108 MHz).
- Working Voltage: DC 13.8V (±15%)
For detailed specifications, refer to the full user manual.
