4 از 5.0 با 11 رای
فرکانس و پاور متر Gy561
GY561 frequency power meter dot matrix LCD display, mainly used to measure radio transmitting devices (such as handheld radios, vehicle-mounted walkie-talkie) output power, and frequency. As a result of built-in load, making the table more convenient and reliable, reliability is also greatly improved. In the case where only frequency measurement is required, an external antenna can be used for non-contact measurement
characteristic:
Frequency measurement : 1 MHz --- 2400 MHz
Power Measurement : 0.1W --- 50W
Input impedance : 50
Accuracy : 140-170 / 400-470 better than 10%
Sampling time : about 0.2 Miao
Operating temperature : 0-40 degrees
Battery : three 1.5V the AAA alkaline batteries ( need to own distribution )
Current consumption : about 100MA
Range :
Power measurement Automatic conversion range , the measured signal exceeds 500 MHz power show "00.0W" measurement model is less than 1 MHz time , the frequency display will no longer accurate .
Calibration adjustment :
Open the cover , seen two built-in regulator . Is located in the lower left is the frequency of the calibration capacitor , in reference to the instrument when there is , can be calibrated . The power measurement is below the baseline adjustment , the factory has a good tune (5.000V) Please do not adjust easily .