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CYT-4型超声波鱼群探测仪是一种具有良好探鱼性能的助渔仪器,已经在上海中原电器厂成批生产了.本仪器与一般鱼探仪相比具有很多特点:例如接收器的灵敏度由于采用将接收信号通过适当放大并检波后再触发另一不同频率的振荡器,经功率放大后输出至记录纸,因此具有极高的灵敏度,当输入信号为0.2～0.5微伏时输出达300伏以上(记录纸击穿电压约120～150伏),而其输出杂声仅在1伏以下.仪器的
CYT-4 ultrasonic fish detection device is a kind of fish-fishing instrument with good fish-hunting performance and has been mass-produced in Shanghai Zhongyuan Electric Appliance Factory.This instrument has many features compared with the general fish-finder: for example, Sensitivity Due to the use of the received signal through the appropriate amplification and detection and then trigger another oscillator of different frequencies, after power amplifier output to the recording paper, it has a very high sensitivity, when the input signal is 0.2 ~ 0.5 microvolts output 300 volts or more (recording paper breakdown voltage of about 120 ~ 150 volts), and its output noise is only below 1 volt.