Agilent / HP / Keysight 8903B

The Agilent / HP 8903B analyzer makes signal-to-noise measurements on AM receivers with its built-in source using similar smoothing techniques. Transmitter testing is also easy. In conjunction with the Agilent 8901A , Agilent 8901B , or Agilent 8902A modulation analyzers you can measure transmitter distortion, frequency response, and count squelch tones.

The Agilent 8903B also provides the audio tones to modulate the transmitter.The Agilent 8903B Audio Analyzer and Agilent 8903E Distortion Analyzer make audio measurements fast and easy. The analyzers automatically tune and autorange for maximum accuracy and resolution.

With a built-in low distortion audio source, the Agilent 8903B is ideally suited to stimulus-response applications. Microprocessor control of source and analyzer allows the Agilent 8903B to perform swept measurements.

Agilent-IB control of all measurement functions makes analyzers valuable tools for ATE applications. The Agilent 8903B analyzer combines the power of a digital voltmeter, frequency counter, and distortion analyzer into one instrument.

Since these functions are all available at one input connector, interfacing requirements, hardware costs, and software development time are reduced. The Agilent 8903B also includes a low-distortion programmable audio source.

The Agilent 8903B Audio Analyzer and Agilent 8903D Distortion Analyzer provide unparalleled versatility and performance for audio measurements from 20 Hz to 100 kHz. Both instruments combine the functionality of a high-performance distortion analyzer, frequency counter, ac voltmeter, dc voltmeter, and SINAD meter into one compact package.

In addition, the Agilent 8903B has a low-distortion audio source which allows it to perform stimulus-response measurements, such as signal-to-noise ratio, automatically with no additional equipment.

The Agilent 8903B can also measure distortion of one signal while generating another frequency, because analyzer tuning and source frequency are independent.

The analyzers have many features which make difficult audio measurements easy. These include flexible data display formats, balanced analyzer input, plug-in filters, fully-automatic notch filter tuning, and for the Agilent 8903B, convenient audio source control and swept measurements.

Balanced inputs on the Agilent 8903B and Agilent 8903E makes transformers unnecessary. Simply float the
analyzer input and connect the bridged device directly and you are ready to make measurements.

With its internal audio source and microprocessor, the Agilent 8903B performs swept frequency response, swept distortion, and signal-to-noise measurements automatically.

The Agilent 8903B overcomes the tendency of many automatic analyzers to become unlocked in SINAD mode by tuning its notch filter to the source frequency. The Agilent 8903B adds an analog SINAD meter which displays ratios less than 24 dB.

With the Agilent 8903B, you can generate tone burst sequences. Minimum tone duration is three milliseconds, which is fast enough for such applications as unsquelching pagers.

The Agilent 8903B automatically makes signal-to-noise ratio measurements by monitoring the ac level while turning its source on and off. Like SINAD, signal-to-noise mode in the Agilent 8903B uses display rounding and filtering to reduce the effects of noise on the measurement.