Advantest R3361D

The R3361D Spectrum Analyzer is compact and lightweight spectrum analyzers which uses a synthesized technique to cover wide frequency band 9 kHz to 3.6 GHz.

The R3261/3361 Series spectrum analyzers are very functional, yet very easy to use because of the user-defined functions and define and intiate specific functions.

By adding software calibration technology to ADVANTEST’s long experience in RF technology, the R3361D achieves a total level accuracy of 1 dB (typical value). With this technology, highly accurate level measurements are possible without worrying about linearity error due to IF stage log amp or RBW switching.

The R3361D uses a synthesized system, so the central and start/stop frequencies can be set with a resolution of 1 Hz. Frequency measurements with a 1 Hz resolution can be done with the internal frequency counter. The R3361D Spectrum analyzer can not only measure transmitter carrier waves, but can also measure modulated frequencies highly accurately, which cannot be done with ordinary frequency counters.

When measuring electric field strength or EMC measurements, there is often the need to monitor the sound. As well as having a conventional sound monitor in zero span mode, by means of a marker pause function, the R3361D can monitor sound while doing panoramic reception measurements.

The sweep time in EMC or QP measurement is extremely long to complete measurement. But the sweep time when measuring the peak value is extremely short and measurement can be done in a short time. So the QP value is usually measured first at the peak, then at the necessary position. The manual sweep function of the R3361D is a very handy and unique function to measure only a point specified by turning the rotary knob on the front panel.

The user–defined function allows the user to pick a desired function and define it on the USER key, which works the same way as the ‘function keys’ on a personal computer. The user can thereby create a customized software menu. The software key menu, which corresponds to the keys on the main panel, can be displayed and changed by using this function.

The R3361D model has a measuring window function by which the need to focus on only the part of the waveform can be accomplished. The window specification may include not only a frequency but a level. The frequency and level are not fixed but can be specified to arbitrary values for flexible analysis. In addition, since marker and sweep operations are possible in a range set by the frequency and level, the measuring time can be reduced greatly.

Functions for burst signal measurement are available as an option in the R3361D, to further expand its signal analysis ability, and contribute to the development of the latest technologies such as AV equipment.

An optional controller function can be installed into the R3361D. It uses the easy–to–understand BASIC computer language, and can be used to control itself and another GPIB device connected to the GPIB port. Programs can be entered on a familiar, often–used terminal, or a personal computer in terminal mode. Parallel I/O devices can be controlled by means of the controller function, and automatic measurements with jigs are possible.