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HN-18(对讲机技术参数说明/Function)
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| Specifications |
| GENERAL | |
| Frequency range: | 462-467MHz |
| Communication range | 1-2km |
| Channel quantity | 14(half-duplex) |
| Channel spacing | 25kHz |
| Operation temperature range | -20℃- +60℃ |
| Overall dimensions (HxWxD) | 41*87*25 mm (w/knob and antenna) |
| Weight | 125g |
| TECHNICAL | |
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Current:Transmitting mode Receiving mode (90mw output) Receiving mode (no signal) Battery save on |
300mA or less 120mA or less 50mA or less 10mA (average) |
| Power voltage: | Battery4.5-1.5V |
| External power | 5.5-1.5V |
| Low battery voltage | DC 3.45 0.005v |
| CPU oscillator frequency | 4MHz |
| PLL reference oscillator frequency | 20.95MHz |
| Transmitting power | 400mW/1W |
| Transmission method | VCO directamplification |
| Modulation | 1.5KHz |
| CTCSS modulation | 0.3 0/0.005KHz |
| TX VCO voltage | 1.90V |
| Reception method | Double super-heterodyne |
| First oscillator mode | Low first oscillator mode |
| First IF frequency | 21.4MHz |
| Path bandwidth | 3.75KHz or more at 3dB |
| Attenuation bandwidth | 20KHz or more at 20dB |
| Second IF frequency | 450KHz |
| 6dB bandwidth | 4.5KHz |
| 50dB bandwidth | 10KHz |
| Sensitivity (12dB SINAD,2KHz deviation) | 120dBm |
| S/N (RF level:60UV,Mod level:3KHz) | 35dB |
| RX VCO voltage | 1.80V |
| Modulation distortion | 5% |
| *Specifications are subject to change without notice due to advance in technology or progress of performance | ||