供应科立讯PT578对讲机
面议
产品名称 PT578
简述 PT578科立讯{zx1}推出的xx商务机型，独创金属外壳，双色外型设计，更服务xx商务，提供通讯保航。
一般规格
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产品型号 |
PT578 |
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一般规格General Specifications |
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供电电压Power Supply |
7.5V DC ±20% |
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工作温度Operating Temperature |
-25℃~ + 55℃ |
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信道数量 Number of Channels |
16 |
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尺寸：高x宽x厚 Dimensions: H x W x D(mm) | |
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带标准1200mAh锂聚合物电池With Standard 1200mAh Li-POLY battery |
111 *52.5*33.5（mm） |
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重量Weight: (gm) | |
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带标准1200mAh锂聚合物电池With Standard 1200mAh Li-POLY battery |
249（g） |
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平均电池使用时间Average Battery Life @5/5/90 Cycle: | |
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带标准1200mAh锂聚合物电池With Standard 1200mAh Li-POLY battery |
10h |
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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/IP65 |
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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/IP65 |
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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/IP65 |
发射部分
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产品型号 |
PT578 |
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发射规格Transmitter Specifications | |
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频带划分Frequencies - Full Bandsplit |
400~450MHz、420~470MHz、136~174MHz |
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频率稳定度Frequency Stability(-25 to 55, 25 Ref) |
2.5ppm |
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功率Power Output |
1~4W/5W |
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调制限制Modulation Limiting |
±2.5KHz@12.5KHz, ±5KHz@25KHz |
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剩余调制FM Hum & Noise |
-40dB@25KHz，-35dB@12.5KHz |
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发射杂散Conducted/Radiated Emission |
-36dBm < 1GHz, -30dBm > 1GHz |
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邻道功率Adjacent Channel Power |
-60dB @ 12.5KHz, -70dB @ 25KHz, |
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音频响应Audio Response (300-3000Hz) |
+1 ~ -3 dB |
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音频失真Audio Distortion |
< 5% |
接收部分
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产品型号 |
PT578 |
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接收规格Receiver Specifications | |
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频带划分Frequencies - Full Bandsplit |
400~450MHz、420~470MHz、136~174MHz |
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接收灵敏度Sensitivity(12 dB SINAD)EIA |
.28μV@12.5KHz, .25 μV@25KHz typical |
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互调Intermodulation EIA |
65 dB |
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邻道选择性Adjacent Channel Selectivity |
60 dB@12.5KHz, 70 dB@25KHz |
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假信号响应Spurious Rejection |
70 dB |
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额定音频功率Rated Audio |
1 W |
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音频失真Audio Distortion @ Rated Audio |
5% |
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音频响应Audio Response (300-3000Hz) |
+1 ~ -3 dB |
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接收杂散Conducted Spurious Emission |
-50 dBm<1 GHz, -47 dBm>1GHz |
功能说明
