Introduction
This user's manual provides comprehensive guidance for the CRYSTAL DB477C Mobile Radio. It covers features, installation, and operation, serving as both a tutorial and a reference for this vehicle transceiver.
Key Features
- Stylish, sturdy housing with advanced functions.
- Large LCD with adjustable brightness.
- User-friendly button layout.
- High-quality materials for stable performance.
- Programmable CTCSS, DCS, 2Tone, 5Tone per channel.
- Various scan functions.
- 5Tone for messaging, alarms, and remote control.
- DTMF-ANI and 5Tone-ANI for identification.
- Optional Scramble function.
- Compander for noise reduction and audio clarity.
- Theft alarm for safety.
Installation
Details mobile and fixed station installation, including:
- Mobile Installation: Safe location selection and mounting.
- DC Power Connection: Proper connection to a 12V DC supply, polarity, and ignition control.
- Antenna Connection: Guidance for 50Ω antennas.
- Accessory Connections: External speakers and microphones.
Operations & Controls
Covers front/rear panels, display, microphone functions, and basic operations:
- Power on/off, volume, squelch adjustment.
- VFO/Channel mode switching.
- Frequency/channel selection.
- Receiving and transmitting procedures.
- Channel editing and deletion.
Advanced Functions & Settings
Explores operational modes and settings:
- Shortcut Operations: Squelch, scanning, CTCSS/DCS setup.
- General Settings: DTMF, 2Tone, 5Tone signaling, keypad lockout, display modes, TOT, APO, etc.
- Special Features: Anti-theft alarm, cable cloning, talk around, voice compander.
Troubleshooting & Specifications
Provides solutions for common issues and lists technical specifications like frequency range, power output, and dimensions.
Regulatory & Warranty
Includes Australian Broadcasting Requirements, EME guidelines, and warranty information from TDJ Australia Pty Ltd.
