This article introduces the method of extending noise figure meter HP 8970a measurement frequency range.
本文介绍了扩展噪声系数表hp 8970a测量频率范围的方法。
If the input signal is anywhere in the frequency range of the detector, the meter will make a valid power measurement.
只要输入信号落在检测器的频率范围内，则功率计就能给出准确的的功率。
Sound card oscilloscope software oscilloscope, signal generator, frequency meter, multimeter functions in the audio range can completely replace the equipment.
声卡示波器软件实现了示波器，信号发生器，频率计，万用表的功能，在音频范围内可完全替代上述仪器。
This article proposes with designs frequency meter's method based on at89C51 monolithic integrated circuit to be possible to obtain the precision to be high, the frequency range wide frequency meter.
本文提出的用基于AT 89 C51单片机设计频率计的方法可获得精度较高、频率范围宽的频率计。
The digital frequency meter to achieve the desired requirements of the variable-range measurement, measuring range 0.1Hz-9999MHz, accuracy up to 0.1Hz.
该数字频率计达到预期要求，实现了可变量程测量，测量范围0.1Hz—9999MHz，精度可达0。
The digital frequency meter to achieve the desired requirements of the variable-range measurement, measuring range 0.1Hz-9999MHz, accuracy up to 0.1Hz.
该数字频率计达到预期要求，实现了可变量程测量，测量范围0.1Hz—9999MHz，精度可达0。
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