| Item number | MD-390 |
| General | |
| Frequency Range | VHF:136-174MHZ UHF:400-480MHz |
| Channel | 1000 Channels |
| Channel spacing | 12.5KHZ |
| Operating voltage | 7.4v |
| Battery type | Li-ion |
| Operating temperature | -30℃+60℃ |
| Store temperature | -40℃+85℃ |
| Antenna Impedence | 50Ω |
| Audio output power | ≤1000mW@16Ω |
| Battery capacity | 2200Mah standard Li-ion battery |
| Dimension(H*W*D) | 131*61*36mm |
| Weight | 258g |
| Transmitter | |
| Output power | High: ≤5W(HI) Low: ≤1W(Low) |
| Frequency stability | +/-1.0ppm |
| Adjacent channel Power | ≤-60dB |
| Free time slot power | TDMA: ≤-57dBm |
| Hum and Noise | -40dB @ 12.5KHZ |
| Spurious Radiation | Antenna:9KHz-1GHz ≤-36dBm / 1GHz-12.75GHz ≤-30dBm |
| FM modulation mode | 12.5KHZ:11K 0 F 3 E |
| 4FSK digital mode | 12.5KHZ(data only):7K60FXD 12.5KHZ(data+voice):7K60FXE |
| Modulation Maximum Deviation | 2.5KHZ@12.5KHZ |
| Nonactive slot power | -57dBm |
| Digital protocol | ETSITS102 361-1,-2,-3 |
| Vocoder type | AMBE+2TM |
| Audio response | +1dB~-3dB |
| Modulation BER(Bit error rate) | ≤5% |
| Receiver | |
| Analog sensibility | 0.35uV/-116dBm(20dB SINAD) / 0.22 uV/-120dB m(Type) |
| Digital sensibility | 0.3 uV/-117.4dBm(BER 5%) / 0.7 uV/-110dBm(BER 1%) |
| Co-channel Rejection | ≥-12dB |
| Spurious response | TIA603C: 75dB ETSI: 70dB |
| Adjacent channel selectivity | TIA603C: 65dB ETSI: 60dB |
| Rated audio power | 1W |
| Audio response | =1dB~-3dB |
| Rated audio distortion | 3%(Type) |
| Spurious radiation | Antenna:9KHz-1GHz ≤-57dBm / 1GHz-12.75GHz ≤-47dBm |
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