Advantest U3772 Field Use Spectrum Analyzer

Advantest U3772 Field Use Spectrum Analyzer

A New Standard for Microwave and Millimeter-wave Spectrum Analyzers

The world’s smallest and lightest microwave spectrum analyzer handles frequencies of up to 43 GHz. As the pace of radio communications development worldwide continues to increase daily, operating frequency bands have widened from microwave bands to include millimeterwave bands. The U3771/3772 sets a new standard for microwave spectrum analyzers. An analyzer that combines portability, a quality required for inspecting and servicing different types of communication systems, with maximum functionality in the field. Making full use of the newest digital circuit and software technology in the world’s smallest and lightest (less than 6 kg) form factor, the U3771/3772 achieves dramatic advances in level measurement accuracy and stability. Employing leading edge software technologies to provide image suppression capabilities and an array of data analysis functions as standard features This field-use spectrum analyzer employs 3-way power operation (battery, DC and AC), warms up quickly (within 5 minutes) and has an USB interface enabling the use of largecapacity memory for data storage.

Compact Size

• Size and weight half that of existing spectrum analyzers with similar features 

• Optimized for use in field maintenance tasks and surveys

5 min. Warm-up

• All but eliminates preheat time considerations 

• Reaches operational specifications (level measurement accuracy) within just 5 minutes

USB Interface

• Support for USB for printer and memory Storage Image formats: PNG, BMP Configuration file: BIN, XML

Operating with battery

• Includes a detachable battery pack 

• Can operate continuously for up to 2 hours after a full-charge time of 5.5 hours

FEATURES

High-input Sensitivity 

As measured frequencies become higher, noise level degradation places limits on measurement dynamic range. The latest RF technologies are incorporated in the U3771/3772 to reduce the noise floor level. –117 dBm@34 GHz (typ.)

Broadband Sweep 

The U3771/3772 continuously sweeps across a frequency band of 10 MHz to 31.8 or 43 GHz allowing high-speed sampling of data on a single screen, simplifying broadband signal monitoring and harmonics measurement tasks.

Two-Channel Display 

The U3771/72 has two RF inputs: RF input 1 (9 KHz to 8 GHz) and RF input 2 (10 MHz to 31.8/43 GHz). By feeding different signals to the respective input ports, a spectrum display can be produced on the UPPER/LOWER screen. All of the settings for the UPPER/LOWER screen are independent of one another, allowing the product to function as a simple, two-channel spectrum analyzer.

RMS Detector 

The U3771/3772 include an RMS detector in addition to the traditional sample detector to increase its accuracy in broadband modulated signal power measurements. The RMS detector, the digital IF, and the software calibration function work together to provide higher-stability power measurement.

Image Suppression Function Useful for removing Images 

Software pre-selector technology has been incorporated into the U3771/3772 to make a compact, lightweight, and inexpensive spectrum analyzer. The Image Suppression (IS) function allows you to identify and delete images easily. The U3771/3772 comes with the IS function enabled by default for operation as easy as that of a conventional model.

Zoom Function 

An example of a pulsed RF signal measured with the Frequency-Time (F-T) mode analysis feature of the zoom function is shown below. The U3771/3772 displays the pulse envelope (frequency domain) of double pulses (5-µs delay) having a pulse width of 1 µs and a pulse waveform (time domain) on separate screens. Additional features provided by the U3771/3772 support a wide variety of analysis tasks including Frequency-Zoom mode, in which different frequency spectra are displayed, and T-T display mode, which is useful for displaying expanded views of the time domai.

Millimeter wave frequency measurement 

By pointing the marker at the signal to be measured, the U3771/72 can be used as a frequency counter of up to 31.8/43 GHz. Measurement resolutions of from 1 Hz to 1 kHz can be selected. Using the marker counter function, which makes use of span accuracy, makes possible high-speed signal frequency confirmation when checking millimeter-wave modulation frequencies. (Resolution is determined by span setting.