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DR-855 5W DMR Digital Two Way Radio Walkie Talkie
- Commodity name： DR-855 5W DMR Digital Two Way Radio Walkie Talkie
- Model Number： DR-855
- Brand： Kydera
- Product Origin： Quanzhou
- Type： Two Way Radio
Category：
Detailed Introduction
DR-855 DMR Digital two way radio walkie talkie
Main Features
- Private Call
- Group Call
- All Call
- Remote Kill
- Remote Revive
- Power Saving Mode
- One-Touch Call
- Call Alert
- Long-duration recording support (up to 200 hours)
- Low power voice and icon prompt
- Prompt tone on/off
- Remote monitoring function
- Voice prompt for channel switching and function selection
- Two programmable long-press buttons on the side
Features
1.Adopt true two-slot communication technology
2.Support digital and analog dual operation modes
3.Equipped with TFT color display for convenient operation
4.TFT color screen with visual icon display and intuitive interface
5.Support up to 4000 communication channels
6.Flexible frequency adjustment and setting via keypad
7.Equipped with 2000mAh lithium polymer battery for long operating time
| Specification | ||
| Model | DR-855 | |
| Items | UHF | VHF |
| FrequencyRange | 400-480MHZ; 350-390MHZ | 136-174MHZ; 245MHZ |
| Channel Zone | 16 | |
| Total Channel Capacity (512) | 4000 (250 Channels/Zone) | |
| Antenna Impedance | 50Ω | |
| Dimension (H x W x D) | 102 x 54 x 35mm | |
| Weight (W/Battery) | 225G | |
| Li-polBattery | 2000mAh | |
| Rated Voltage | DC: 7.4V | |
| Battery life: The average battery life under5/5/90duty cycle, and using carrier squelch and TX high power. 2000mAh Li-pol battery: Analog: 9.6 hours / Digital: 13.7 hours | ||
| Receiver | ||
| Frequency | 400-480MHZ; 350-390MHZ | 136-174MHZ; 245MHZ |
| Channel Spacing | 12.5kHz /25kHZ | |
| Frequency Stability (-20℃,+60℃,+25℃) | + / - 1.5ppm | |
| Analog Sensitivity (12 dB SINAD) | 0.3uV / 0.25uV | |
| Digital Sensitivity (5% BER) | 0.25uV / 0.20uV | |
| Intermediation | 65dB | |
| Adjacent Channel Selectivity | 60dB@12.5kHz / 65dB@25kHz | |
| Spurious Rejection | 65dB | |
| Rated Audio | 500mw | |
| Audio Distortion @Rated Audio | 3% | |
| FM Hum & Noise | -40dB @12.5kHz / -45dB @25kHz | |
| Audio Response | +1,-3dB | |
| Conducted /Radiated Emission | -57dBm | |
| Transmitter | |||
| Frequency | 400-480MHZ; 350-390MHZ | 136-174MHZ; 245MHZ | |
| Channel Spacing | 12.5kHz /25kHZ | ||
| Frequency Stability (-20℃,+60℃,+25℃) | + / - 1.5ppm | ||
| Low Power | 1W | 2W | |
| High Power | 4.5W | 5W | |
| Modulation Restriction | ±2.5kHz@12.5kHz /±5kHz@25kHz | ||
| FM Hum & Noise | -40dB @12.5kHz / -45dB @25kHz | ||
| Conducted /Radiated Emission | -36dBm＜1GHz / -30dBm＞1GHz | ||
| Adjacent Channel Selectivity | -60dB@12.5kHz / -65dB@25kHz | ||
| Audio Response | +1,-3dB | ||
| Audio Distortion | 3% | ||
| FM Modulation | 12.5kHz: 11K0F3E ; 25kHz: 16K0F3E | ||
| 4FSK Digital Modulation | 12.5kHz Data: 7K60F1D & 7K60FXD ; 12.5kHz Audio: 7K60F1E & 7K60FXE ; 12.5kHz Data & Audio: 7K60F1W | ||
| Digital Vocoder | AMBE+2 ™ | ||
| Digital Agreement | ETSI-TS102 361-1, -2, -3 | ||
| GPS(Optional) | |
| Precisely and standard designed for a long-term positioning( 95% value＞could find 5 satellites @ rated -130dBm signal strength | |
| TTFF (time to first fix) cold start | ＜ 1 min |
| TTFF (time to first fix) warm start | ＜ 10 s |
| Horizontal Position Accuracy | ＜ 10 ms |
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