描述：
The Agilent HP 4935A is a Transmission Impairment Measuring Set that tests circuits for faults and qualifies circuits for voice, data, and broadcast service.Other Info:In addition, with its 110kHz bandwidth, the 4935A performs the required tests to qualify the local loop for Digital Data Systems （DDS） up to 56 kbps. The HP Agilent 4935A performs measurements compatible with the Bell standards （BSTR 41009） and IEEE standards （IEEE 743-1984）.
The HP Agilent 4935A measures for level, frequency, circuit noise, noise-with-tone, signal-to-noise ratio, 3 level impulse noise （with tone）, and noise-to-ground.
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