【简单介绍】

PMR 446 防爆对讲机- En HT953

【详细说明】

PMR 446 防爆对讲机- En HT953

• 防水等级IP68（5米）。
   

• MILSTD810C/D/E/FPlay
   

• 1800MAH锂离子电池
   

• 可升级闪存，以便添加未来功能
   

• 坚固的配件-socketPlay
   

• 255个频道
   

• 语音报警（选项）
   

• 蓝牙™无线通信（选项）
   

• 可克隆数据从一个频道到另一个
   

• 液晶显示器

• Frequency Range	446.00625 – 446.09375MHz (HT953)
  Channels	255 Channels
  Channel Spacing	12.5 kHz &f 25 kHz
  Communication Method	Simplex / semi duplex
  Antenna Impedance	50 ohm
  Antenna	Whip / stubby
  Battery Type	1800 mAh Li–Ion battery pack
  Power Supply Voltage	7.4V DC
  Current Drain (nominal)	TBA
  Duty Cycle (5/5/90)	TBA
  Microphone	Internal condenser microphone
  Operating Temperature	-20° to +55°
  Size (mm)	59.5(W) x 130(H) x 37(D) W = 59.5mm (62 including protrusions) H = 130mm (145 inc knobs) D = 37mm (41 including battery protrusions)
  Weight	277g with battery and Antenna
  Power Output	1W
  Modulation	8K0F3E/16K0F3E
  Oscillator Method	PLL
  Frequency Stability	< ±0.00025% (±2PPM)
  Maximum Deviation	±2.5 kHz(Narrow)/ ±5 kHz(Wide)
  Audio Distortion	< 5% (1 kHz 60%)
  Spurious Emission	-68 [dBc]
  Hum & Noise	-40 [dB]
  Receiver Type	Double Super Heterodyne type
  Sensitivity	-0.25uV (12dB SINAD)
  Frequency Stability	±0.00025%(±2PPM)
  Spurious Rejection	-60 dB
  Adjacent Channel Selectivity	-60 dB (Narrow) , -70 dB (Wide)
  Distortion	< 3% Typical
  Hum & Noise	-40 dB
  Audio Output	1W
  Speaker Size	38 mm