Description LEIXEN N8 LCD Display Portable 1MHz 1000MHzFrequency Counter CTCSS DCS Frequency Counter for Walkie Talkie Features N8 handheld frequency counter using dot matrix LCD it mainly used to measure the frequency CTCSS and DCS of radio transmission The counter has antenna to make measurement quick and convenient Specification Operating current 46mABattery 3 1 5V AAA BatteriesColor Camouflage Yellow BlackMeasure range Frequency 1MHz 1000MHz all CTCSS all DCSOperation Power On OFF Press the power button and release to power on Press the power button and hold 2 seconds to power off Measure Method a Press the power button to turn on the counter put the signal source nearby the counter the measured frequency will be displayed within 1 second Sometimes there is a frequency value on the screen already when the counter power on that is an interference frequency You should press the power button once after put the signal source nearby the counter and then the value is measured b If the signal source has a CTCSS tone the tone will be showed directly below the transmitted frequency display c If the signal source has a DCS code the normal code and the invert code of DCS are simultaneously showed directly below the transmitted frequency display The DCS measurement would take one second more time d To measure again press the power button Test measurement results To test the results press the right M button the counter will transmit a low level