General Specification of DMR Portable Radio
| Â DM-880 DMR Portable Radio | |
| 1. Mode | DM-880 |
| 2. Frequency Range | VHF:136-174MHz; UHF:400-480MHz |
| 3. Channel | 512 |
| 4.dimension (with 3000mAh Li-ion battery pack) | Â 126.5*61*39.5mm |
| 5. Votage |  nominal 7.4V (Li-ion Battery) |
| 6. FCC states | |
|  7. 3000mAh Li-ion battery |  Analogue:15 hours  Digital: 23 hours |
| 8. Trade Terms | FOB Xiamen or FOB Shenzhen |
| 9. Packaging |
One main radio with accessories in a gift box. |
| Function characteristics: | ||||||
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| Specification | ||
| Model | DM-880 | DM-880 |
| Frequency Range(MHz) | VHF | UHF |
| 136-174MHz 245-260MHz | 350-390MHz 420-520MHz | |
| Channel | 100/300/500/1000 (optional) | |
| PLL Channel Spacing | 12.5/25KHz | |
| Battery Voltage | 7.4V DC(Li-ion) | |
| Antenna Impedance | 50Ω | |
| Temperature Range | -20℃~+60℃ | |
| Frequency Stability | ±2.5PPM | |
| Case Size | 126×56×37mm | |
| Weight (w/Battery) | 400g | |
| Packaging | Gift box (unit body together with the accessories) | |
| Compatible With American Military Standard(MIL-STD-810C/D/E) |
| Receiver(Measurements made per TIA/EIA-603) | ||
| First IF(MHz) | ||
| Second IF(KHz) | ||
| Sensitivity(12db SINAD) | 0.2(W)/0.25(N) | |
| Squelch Selectivity | 0.15(W)/0.2(N) | |
| Adjacent Channel Selectivity | ≥65dB(W)/≥60dB(N) | |
| Intermodulation | ≥65dB | |
| Spurious Rejection | ≥65dB | |
| Image Rejection | ≥65dB | |
| FM Ham And Noise | ≤Â45(W)≤Â40(N) | |
| Modulation Type | 16KOF3E/11KOF3E | |
| Operating Bandwidth | ≤±7KHz/≤±5KHz | |
| AF Output | 0.5w@4Ohms | |
| Audio Distortion | ≤3% | |
| Transmitter(Measurements made per TIA/EIA-603) | ||
| RF Power Output | 5W/4W | |
| Modulation Type | F3E | |
| Maximum Deviation | ≤5.0(W)/≤2.5(N) | |
| Spurious Emission | ≤65dB | |
| Modulation Distortion | ≤5% | |
| FM Noise | ≤Â45(W)/≤Â40(N) | |
The pictures of DM-880 portable walkie talkie
P.S. About more information of DMR DM-880,kindly download video from below link by yourself,many thanks.
 http://www.sendspace.com/filegroup/cudV%2F9GWZExXUJ714VU8RvRuxfj8doq9
 Main Features (digital mode)
| individual calling | Â contacts | Â Status information |
| Group calling | GPS Status (optional) | Â activation |
| General calling | SMS |  Syetem settings and  telemetry |
| stun | Â Remote Sensing (optional) | |
| Recents | Â Scan |
 Main Features (Analogue Mode )
| Menu mode | Channel Naming | Time-out timer |
| Vox | Busy channel lock out | Frequency/channel scan |
| 107 DCS | Multiple call tones+1750Hz | battery strenth indicator |
| 50 CTCSS | FM radio | Selectable squelch level |
| Priority Scan | Hi/Low power | CO/TO/SE scan switchable |
| Programmable Greetings Message | Selectable Name/Frequency Display Mode | |
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