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Radioddity DB20-G User Manual

Radioddity DB20-G
16 pages
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DB20-G
GMRS-Transceiver and NOAA-Receiver
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Radioddity DB20-G Specifications

General IconGeneral
Frequency Stability±2.5 ppm
ModulationFM
Frequency Range400-470MHz
Channel Spacing12.5 / 25 kHz
Operating Voltage13.8V DC
Operating Temperature-30°C to +60°C
Battery Capacity2000mAh
Antenna ConnectorSMA
Humidity≤ 95%

Summary

1. QUICK GUIDING

1.1 Prepare Work

Lists required items for radio setup, including power supply, antenna, and accessories.

1.2 Quick Use

Provides steps for initial radio operation, connecting components and powering on.

2. ACCESSORIES

2.1 Standard Accessories

Details the standard accessories included with the radio, such as transceiver, microphone, and bracket.

3. GETTING ACQUAINTED

Radio Components Overview

Details the front panel, rear panel, and microphone layout and features of the radio.

4. BASIC OPERATIONS

Power On/Off and Volume Adjustment

Instructions for turning the radio on/off and adjusting the audio level.

Channel Management

Guides on switching, adjusting, storing, and deleting channels.

Receiving and Transmitting

Explains how to receive signals and how to transmit, including optimal microphone technique.

Special Functions

Covers squelch, emergency alarm, keypad lockout, and tone pulse functions.

Scanning and VOX

Details VFO/Channel scanning and the VOX hands-free operation.

5. SHORTCUT OPERATION

Microphone Shortcut Access

Explains how to use microphone keys and number keys to quickly access functions.

6. FUNCTION SETTING

Setting via Front Panel Keys

Steps to access and modify radio functions using the front panel keys.

Setting via Microphone Keys

Procedure for adjusting radio functions using the microphone keys.

6.3 Reset Factory Default

Instructions on how to reset the radio to its factory default settings.

7. SPECIFICATIONS

General & Receiver Specs

Provides general and receiver technical specifications for the radio.

8. ATTACHED CHART

CTCSS Tones and DCS Codes

Lists frequencies for 51 CTCSS tones and codes for 1024 DCS groups.

Transmitter Specifications

Details the technical specifications for the radio's transmitter.

Menu List

Menu 01-02: CTCSS/DCS Setup

Configuration for CTCSS/DCS codes in transmit and receive frequencies.

Menu 03-07: Signaling & Bandwidth

Covers RT-CDC, Optional Signaling, Signal modes, Step size, and Bandwidth settings.

Menu 11-18: Channel & Tone Settings

Includes RPLOCK, Channel Name, TX INHIBIT, Compander, Noise Reduction, and Tone settings.

Menu 19-22: Display, Beep, TOT & DTMF

Details DSPSUB, BEEP, TOT, and DTMF signaling configurations.

Menu 23-30: Squelch to Restore

Covers SQL, SCAN, LIGHT, VOX, VOXDELAY, TBST, DSPCHANNEL, and RESTORE functions.

Appendix A. - GMRS Frequency Chart (MHz)

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