Advantest R3365

The R3365 Spectrum analyzer have a large sized CRT screen in a portable unit and a wide frequency range, allowing measurements from 100 Hz to 8 GHz in a single sweep.

The R3365 also provides excellent spectral purity of -110 dBc/Hz at 2.6 GHz (10 kHz offset frequency) due to newly developed high purity synthesizer.

The R3365 spectrum analyzer performs especially well in measuring the spurious emission intensity of new mobile communications equipment, the bandwidth of occupied frequencies and signal leakage from adjacent channels.

In the low–noise mode, the series has a high-input sensitivity of -145 dBm (1 MHz to 3.6 GHz), so it can easily measure low level signals.

The R3365 Spectrum analyzer is provided with a BASIC controller as a standard feature. This feature allows measured data or set conditions to be stored and the free construction of automatic measurement systems without the need for external controllers.

The R3365 is provided with a preselector for low frequencies, enabling the unit to realize a dynamic range of 100 dB and higher for carrier waves of 250 MHz and higher.

The R3365 has a built–in tracking generator and is ideal for measuring frequency characteristics when setting up or maintaining digital radio base stations.

For frequency resolution, the R3365 Series incorporates a narrow-band (10 Hz) IF bandwidth filter that can separate nearby signals from the wide IF bandwidth filter (3 MHz) which improve the measurement sensitivity to a pulsed RF signal. Thus the R3365 series can be used for a wide variety of measurements.

The narrow-band IF bandwidth filter also incorporates a digital IF filter, thus enabling both nearby signal characteristic measurements with high selectivity as well as high-speed measurements.

The R3365 Series includes a burst signal (TDMA and video signals) analysis function as a standard feature. When combined with the high-speed sweep function, this function can be used to monitor the transmission power in an arbitrary onetime slot of a TDMA signal or to analyze the noise in one horizontal line of a TV signal.

The R3365 Series uses a high-speed digitizer to perform highspeed sweeps of 5 micro s/div during zero span. This data can also be averaged using an averaging function. This function is ideally suited for monitoring the mean transmission power and duration of Time Division Multiple Access (TDMA) signals that are used in the Global System Mobile (GSM).

The R3365 has a Power Sweep Function which sweeps the output level. This function has been made possible through a newly developed attenuator in the tracking generator output section which used a semiconductor switch. The level sweep with a 30 dB/0.1 dB step sweep range provides high precision measurements of amplifier input/output characteristics.

By calculating the measured spectrum data, the R3365 Series can easily measure the occupied bandwidth of a radio transmission characteristic and the leakage power of an adjacent channel. A carrier frequency is also displayed when the occupied bandwidth is measured. The leakage power from an adjacent channel can be measured in a dynamic range of 70 dB (typical value) due to the excellent signal purity of the series.

In addition to its functions for doing burst signal analysis and measuring occupied bandwidth and adjacent channel leakage power, the R3365 Series has added a total power and average power measurement function and a quasi–analog display function.
A built–in digital modulation analysis interface is also included, so that modulation accuracy can be easily measured just by connecting the R3541A/B Digital Modulation Analysis Unit (sold separately).