The Advantest R3265 is a sweep-tuned spectrum analyzer with an analog-to-digital section for displaying and analyzing data. It is equipped with GPIB remote control and a memory card function for saving and recalling waveform data and panel settings. The R3265 is a quasi-microwave spectrum analyzer designed to meet the user needs and to ensure easy operation. It incorporates a time domain function so it can be used for both digital and analog mobile communications. The unit performs especially well in measuring the spurious emission intensity of mobile communications equipment, the bandwidth of occupied frequencies and signal leakage from adjacent channels.
The Advantest R3265 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 R3265. The CRT displays received signal strength (y-axis) against frequency ( x-axis).
Some applications for Advantest R3265 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 R3265 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 R3265 spectrum analyzer features include antenna isolation, co-channel interference, adjacent channel power, occupied bandwidth, intermodulation, microwave or satellite antenna alignment, and characterization of components.