Power analyser is world’s first with selectable frequency

Simple, numeric, frequency based measurement of RF power is afforded with the world’s first frequency-selectable RF power analyser, claims Anritsu. The Power Master MA24507A operates from 9kHz to 70GHz and uses the company’s Shockline technology to address the growing number of test requirements in mmWave applications, including test of 802.11ad, wireless HD, and E-band products, at every stage of the product lifecycle.

As signal frequency increases, attenuation due to the air or cabling grows, which can make power measurements particularly difficult at mmWave frequencies. The analyser’s portability enables users to place it directly at the signal source, including on-wafer measurements. When system losses are unavoidable, the analyser can make measurements as low as -90dBm at 70GHz, which makes it an alternative to large benchtop instruments, which can be unwieldy in the field, says the company.

The USB-powered analyser measures approximately 6.0 x 3.0 x1.0inches and weighs less than 15oz; slightly bigger than a smartphone, points out the company. It is small and light enough to be used to make measurements on antenna towers or, with an extension pole, to measure small cell signals from the ground.

Frequency selective power measurements allows users to differentiate intended signals from unintended signals for the first time. Able to span from 1kHz to full span, the analyser can zero in on a signal of interest in harsh environments, including those with unintended signals that can impact power readings. As a result, channel power and adjacent channel power can be made, while avoiding spurs and harmonics.

No reference calibration is required. The power analyser can stay connected to a test system constantly, eliminating the need to disconnect and reconnect between test procedures.

The analyser can be controlled remotely via the USB interface or through PowerXpert™ data analysis and control software. Features have been added to the latter, including a Power Hunter mode to identify the six highest CW amplitudes and their corresponding frequency, and a Channel Monitor mode so users can select up to six frequency channels and monitor CW amplitude or channel power simultaneously.


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