科立讯数字对讲机，PT-558S

一般规格General Specifications

供电电压Power Supply

7.5V DC ±20%

工作温度Operating Temperature

-25℃~ + 55℃

信道数量Number of Channels

16

尺寸：高x宽x厚Dimensions: H x W x D(mm)

带标准1000mAh锂离子电池With Standard 1000mAh Li-POLY battery

102*56.5*29.5（mm）

带标准1000mAh锂离子电池With Standard 1000mAh Li-POLY battery

235（g）

平均电池使用时间Average Battery Life @5/5/90 Cycle:

带标准1000mAh锂离子电池With Standard 1000mAh Li-POLY battery

10h

封装Sealing:

符合MIL STD 810 C/D/E and TIA/EIA 603

Withstands rain testing per MIL STD 810 C/D/E and TIA/EIA 603/IP54

冲击和震动Shock and Vibration:

符合MIL STD 810 C/D/E and TIA/EIA 603

Protection provided via impact resistant housing exceeding MIL STD 810 C/D/E and TIA/EIA 603/IP54

防尘防潮Dust and Humidity:

符合MIL STD 810 C/D/E and TIA/EIA 603

Protection provided via environment resistant housing exceeding MIL STD 810 C/D/E and TIA/EIA 603/IP54

接收规格Receiver Specifications

频带划分Frequencies - Full Bandsplit

400~470MHz

接收灵敏度Sensitivity(12 dB SINAD)EIA

0.2μV

互调Intermodulation EIA

60 dB

邻道选择性Adjacent Channel Selectivity

60 dB@12.5KHz, 70 dB@25KHz

假信号响应Spurious Rejection

70 dB

额定音频功率Rated Audio

1 W

音频失真Audio Distortion @ Rated Audio

5%

音频响应Audio Response (300-3000Hz)

+1 ~ -3 dB

接收杂散Conducted Spurious Emission

-50 dBm

发射规格Transmitter Specifications

频带划分Frequencies - Full Bandsplit

400~470MHz

频率稳定度Frequency Stability(-25 to 55, 25 Ref)

2.5ppm

功率Power Output

1~4W

调制限制Modulation Limiting

±2.5KHz@12.5KHz, ±5KHz@25KHz

剩余调制FM Hum & Noise

-40dB@25KHz，-35dB@12.5KHz

发射杂散Conducted/Radiated Emission

-36dBm < 1GHz, -30dBm > 1GHz

邻道功率Adjacent Channel Power

-60dB @ 12.5KHz, -70dB @ 25KHz,

音频响应Audio Response (300-3000Hz)

+1 ~ -3 dB

音频失真Audio Distortion

< 5%