對(duì)講機(jī)品牌 科立訊 貨號(hào) PT-558S PT-558S簡介: PT558S是國內(nèi)第一款數(shù)字信號(hào)處理對(duì)講機(jī),運(yùn)用高科技DSP數(shù)字信號(hào)處理技術(shù),具有極佳的穩(wěn)定性,信噪比和靈敏度等指標(biāo)都大幅提高,使得產(chǎn)品的通話音質(zhì)更加清晰,通訊距離更遠(yuǎn);新穎時(shí)尚的造型、立體金屬喇叭網(wǎng)、超大的音腔設(shè)計(jì),采用高品質(zhì)的結(jié)構(gòu)面料,使機(jī)身更堅(jiān)固,更耐腐蝕。PT558S為商業(yè)、服務(wù)業(yè)、零賣業(yè)、工業(yè)、企業(yè)等部門度身打造,鑄就高效精英團(tuán)隊(duì)。 一般規(guī)格 產(chǎn)品型號(hào) PT558S 一般規(guī)格General Specifications 供電電壓Power Supply 7.5V DC ±20% 工作溫度Operating Temperature -25℃~ + 55℃ 信道數(shù)量 Number of Channels 16 尺寸:高x寬x厚 Dimensions: H x W x D(mm) 帶標(biāo)準(zhǔn)1000mAh鋰離子電池With Standard 1000mAh Li-POLY battery 102*56.5*29.5(mm) 重量Weight: (gm) 帶標(biāo)準(zhǔn)1000mAh鋰離子電池With Standard 1000mAh Li-POLY battery 235(g) 平均電池使用時(shí)間Average Battery Life @5/5/90 Cycle: 帶標(biāo)準(zhǔn)1000mAh鋰離子電池With Standard 1000mAh Li-POLY battery 10h 封裝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 沖擊和震動(dòng)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 防塵防潮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 接受部分 產(chǎn)品型號(hào) PT558S 接收規(guī)格Receiver Specifications 頻帶劃分Frequencies - Full Bandsplit 400~470MHz 接收靈敏度Sensitivity(12 dB SINAD)EIA 0.2μV 互調(diào)Intermodulation EIA 60 dB 鄰道選擇性Adjacent Channel Selectivity 60 dB@12.5KHz, 70 dB@25KHz 假信號(hào)響應(yīng)Spurious Rejection 70 dB 額定音頻功率Rated Audio 1 W 音頻失真Audio Distortion @ Rated Audio 5% 音頻響應(yīng)Audio Response (300-3000Hz) +1 ~ -3 dB 接收雜散Conducted Spurious Emission -50 dBm<1 GHz, -47 dBm>1GHz 發(fā)射部分 產(chǎn)品型號(hào) PT558S 發(fā)射規(guī)格Transmitter Specifications 頻帶劃分Frequencies - Full Bandsplit 400~470MHz 頻率穩(wěn)定度Frequency Stability(-25 to 55, 25 Ref) 2.5ppm 功率Power Output 1~4W 調(diào)制限制Modulation Limiting ±2.5KHz@12.5KHz, ±5KHz@25KHz 剩余調(diào)制FM Hum & Noise -40dB@25KHz,-35dB@12.5KHz 發(fā)射雜散Conducted/Radiated Emission -36dBm < 1GHz, -30dBm > 1GHz 鄰道功率Adjacent Channel Power -60dB @ 12.5KHz, -70dB @ 25KHz, 音頻響應(yīng)Audio Response (300-3000Hz) +1 ~ -3 dB 音頻失真Audio Distortion < 5% 功能特點(diǎn): 1、采用獨(dú)有的信號(hào)數(shù)字處理技術(shù),性能更穩(wěn)定可靠; 2、超大音腔設(shè)計(jì),最佳信噪比,音質(zhì)清晰宏亮; 3、兩個(gè)可編程按鍵,操作便捷; 4、內(nèi)置亞音及數(shù)字亞音編解碼; 5、語音報(bào)號(hào)、報(bào)警功能; 6、自動(dòng)省電,有效節(jié)能; 7、發(fā)射限時(shí),降低損耗; 8、遇忙禁發(fā),避免干擾; 9、有線復(fù)制,高效準(zhǔn)確;
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