Spectrum Analyzers : Advantest R9211A

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he Advantest R9211A spectrum analyzer is a wide band, very sensitive receiver. It works on the principle of "super-heterodyne receiver" to convert higher frequencies (normally ranging up to several 10s of GHz) to measurable quantities. The received frequency spectrum is slowly swept through a range of pre-selected frequencies, converting the selected frequency to a measurable DC level (usually logarithmic scale), and displaying the same on the CRT of the Advantest R9211A. The CRT displays received signal strength (y-axis) against frequency ( x-axis).

Some applications for Advantest R9211A Spectrum Analyzers include Site Monitoring: Verify that the frequency and signal strength of your transmitter is accurate. Interference: Before a system is installed you use a Advantest R9211A spectrum analyzer to verify that the frequencies (you plan to use) are not occupied or if the presence of a very strong signal will interfere with your new setup. Interference can be created by a number of different situations. Other tests that utilize the Advantest R9211A spectrum analyzer features include antenna isolation, co-channel interference, adjacent channel power, occupied bandwidth, intermodulation, microwave or satellite antenna alignment, and characterization of components.

FFT Dual channel Max Input Sensitivity -140dBV Averaging Difference input Portable w/8 inch CRT screen Wide variety of marker analysi Running zoom w/10mHz resolution

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• Model: R9211A
• Manufactured by: Advantest