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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
• Kill
• Revive
• Battery save mode
• One-touch call
• Call alert
• Records for 200 hours
• Low power voice/icon prompt
• Prompt tone on/off
• Remote monitor
• Support voice prompt for channel switching or function-option
• Two programmable buttons for long pressing are available on the side
Features
1.True-2-slot
2.Support both digital and analog modes.
3.To adopt the TFT color display, convenient operation.
4. Be with TFT color display interface and visible icon display.
5. Support up to 4000 channels.
6. Support to modify and set the frequency via keypad.
7. Using 2000mAh polymer lithium battery.
| 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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