Máy bộ đàm Motorola GP685
- Dung lượng pin: 28000 mAh.
- Công suất phát: 5W.
- Cự ly liên lạc: 500m ~ 2km (tuỳ theo điều kiện và môi trường sử dụng).
- Dãy tần số: 400-470 Mhz (UHF).
- Bộ nhớ 16 kênh tần số.
- Trọn bộ máy bộ đàm Motorola GP685 bao gồm: Thân máy, pin, đế sạc, ăng-ten, hộp máy, bát cài.
Đặc tính kỹ thuật
| Model | GP685 |
| General | |
| Channel Capacity | 16 (Conventional Mode) |
| Power Supply | Rechargeable Battery 7.5V |
| Average battery life with standard high capacity NiMH battery | 11 hours (Low power); 8 hours (High power) |
| Dimensions (H x W x D) | 137 x 57.5 x 37.5 mm (With Standard high capacity NiMH battery) |
| Weight | 428g (With Standard high capacity NiMH battery) |
| Sealing | Withstands rain testing per MIL STD 810 C/D/E and IP54 |
| Shock and Vibration | Protection provided via impact resistant housing exceeding MIL STD 810-C/D/E and TIA/EIA 603 |
| Operating temperature | -20°C to +55°C |
| Transmitter | |
| Frequencies - Full Bandsplit | VHF: 136-174 MHz UHF: 300-350 MHz UHF1: 403-470 MHz |
| Channel Spacing | 12.5/20/25 kHz |
| Frequency Stability | 12.5/20/25 kHz |
| Power | 136-174: 1-5W 300-350: 1-4W 403-470: 1-4W |
| Modulation Limiting | ±2.5 @ 12.5 kHz ±4.0 @ 20 kHz ±5.0 @ 25 kHz |
| FM Hum & Noise | -40dB typical |
| Conducted/Radiated Emission | -36 dBm |
| -30 dBm >1GHz | |
| Adjacent Channel Power | -60 dB @ 12.5 kHz |
| -70 dB @ 20/25 kHz | |
| Audio Response (300-3000Hz) | +1 to -3 dB |
| Audio Distortion | 3% |
| Receiver | |
| Frequencies - Full Bandsplit | VHF: 136-174 MHz UHF: 300-350 MHz UHF 1: 403-470 MHz UHF 2: 450-527 MHz |
| Channel Spacing | 12.5/20/25 kHz |
| Frequency Stability | ±2.5 ppm |
| Sensitivity (12 dB SINAD) EIA | .25µV typical |
| Sensitivity (20 dB SINAD) EN | .50µV typical |
| Intermodulation EIA | 70 dB |
| Spurious Rejection | 70 dB |
| Rated Audio | 0.5W |
| Audio Distortion @ Rated Audio | 3% typical |
| Audio Response (300-3000 Hz) | +1 to -3 dB |
