
วิทยุสื่อสารประชาชน

SHQ-280M
- คุณสมบัติเด่น
- BAND 245.0000- 245.9875 MHz.
- DIMENSION Â H: 90 mm. W : 50 mm. D : 30 mm
- WEIGHT 180 GRAMS / 3.5 WATTS
- 80 CHANNELS, 1100mAh LI-ION BATTERY.
- 48 CHANNELS FREE MEMORY
- 214 CODES OF DCS / 50 GROUPS OF CTCSS
- STOP WATCH
- AUTO BATTERY SAVE
- DUPLEX Â FUNCTION
- AUTO POWER OFF
- TIME-OUT TIMER
- LOW BATTERY ICON Â ALERT
- ETC.
รายละเอียดทางเทคนิค : | ข้อมูลทั่วไป | การส่งข้อมูล | การรับข้อมูล |
---|
ข้อมูลทั่วไป | |
Sensitivity | <0.2 ?V. at 12 dB. / SINAD |
Squelch Sensitivity : | 0.158 ?V. |
Selectivity | 60 dB. |
Spurious Response Rejection: | 60 dB. |
Intermodulation Modulation | 60 dB. |
Adjacent Channel Selectivity | - |
Audio Frequency Response: | +1 dB to - 3dB of + 6 dB. Octave 300 ~3000 Hz. |
Frequency Stabilit | ? 5 ppm |
Audio Output : | > 400 mW. |
Distortion | less than 5 % at 8 Ohm |
การส่งข้อมูล | |
Output Power | Hi : 3.5 W. Lo: 1W. |
Transmitting Frequency Error : | +/- 300 Hz. |
Transmitting Current | - |
Max. Frequency Deviation: | +/- 2.5 KHz. |
Modulation Sensitivity | - |
Transmitting Distortion | less than 5% |
Tone Frequency Deviation | - |
Spurious Radiation | 60 dB. |
Adjacent Channel power | 60 dB. |
Harmonious Wave: | - |
การรับข้อมูล | |
Frequency Range | 245.000-245.9875 MHz. |
Channel No. | 80 Channel, Free 48 Memories |
Frequency General | Synthesizer (PLL) |
Mode Type | FM (F3E) |
Channel | 12.5 KHz. |
Working Temparature | -20 ?C to +55 ? C |
Working | 7.4 V DC. |
Low Voltage Indicator | The Battery is lower than 6V. |
Frequency Stability: | +/- 5ppm |
Case | Red |