Audited Supplier
DR-500 5W Long distance military DMR digital 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
Highlights:
1.True-2-slot
2.Support both digital and analog modes.
3. Super record time up to 200 hours
4. Support up to 4000 channels.
5.Using 2000mAh polymer lithium battery.
6.Support menu operation on/off,preset by software,convenient for task and application management.
| Specification | ||
| Model | DR-500 | |
| 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 (-20ºC,+60ºC,+25ºC) | + / - 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 (-20ºC,+60ºC,+25ºC) | + / - 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 |
Xiamen Kdwera Electronics Technology Co., Ltd. is a professional walkie-talkie manufacturer and high-tech enterprise for wireless communication in southern China. Our company have awarded kinds of national honors and international certificates since 1988 established. We have approximately 15000 product area, and own FIVE JUKI SMT lines. Thus we can release 35,000 two-way radios every month.
We have an engineering team with more than 20 years of experience on walkie-talkie. Every radio is designed by ourselves, so we can provide fully technical supports. And welcome OEM and ODM service.
We use state-of-the-art machines for R&D such as signal generators, HP network analyzers, RF testing machines and more. We have our own molding factory to offer customized samples for you. By now we have about 30 models for your selections.
OUR QC
Our QC team consists of over 15 members with fifteen years of experience on average. They carry out strict tests at every step. Every walkie-talkie tested and Write frequency before packed. We offer a one-year warranty for our products.
We have High-temperature tester, Low-temperature tester, drop tester, long-term battery life monitoring room, vibration tester, high-end digital test instrument etc.
Our Service
Timely response to customer's enquiry
Technology Communication
Guarantee after-sales service
