
วิทยุสื่อสารสมัครเล่น

TH-280M
- คุณสมบัติเด่น
- BAND 144.0000 - 146.0000 MHz.
- DIMENSION Â H: 90 mm. W : 50 mm. D : 30 mm
- WEIGHT 180 GRAMS / 3.5 WATTS
- 128 CHANNELS, 1100mAh LI-ION BATTERY.
- VOX SENSITIVITY (VOX)
- 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 | 73 dB. |
| Spurious Response Rejection: | 73 dB. |
| Intermodulation Modulation | 73 dB. |
| Adjacent Channel Selectivity | - |
| Audio Frequency Response: | + 1 dB to - 3 dB of + 6 dB. Octave with 300~3000Hz. at 1000Hz for reference |
| Frequency Stabilit | DE/EMP. |
| Audio Output : | ? 5 ppm |
| Distortion | > 400 mW. / less than 5 % at Ohm |
| การส่งข้อมูล | |
| Output Power | Hi : 3.5 W. Lo: 1W. |
| Transmitting Frequency Error : | +/- 300 Hz. |
| Transmitting Current | - |
| Max. Frequency Deviation: | +/- 5 KHz. |
| Modulation Sensitivity | - |
| Transmitting Distortion | less than 5 % |
| Tone Frequency Deviation | - |
| Spurious Radiation | 60 dB. |
| Adjacent Channel power | ?-73 dBm. |
| Harmonious Wave: | - |
| การรับข้อมูล | |
| Frequency Range | 144.0000- 146.0000 MHz. |
| Channel No. | 128 Free Memories |
| Frequency General | Synthesizer (PLL) |
| Mode Type | FM (F3E) |
| Channel | 25 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 | Black |



