Advantest R3131A Spectrum Analyzer 9 kHz to 3 GHz

Characteristics

Frequency

Range: 9 kHz to 3 GHz.
Frequency reading accuracy: ± (Frequency reading x Frequency reference accuracy + Span x Span accuracy + 0.15 x Resolution bandwidth + 1 kHz).
Marker counter accuracy: ± (Marker frequency x Frequency reference accuracy + 1 LSD).

Marker counter resolution: 1 Hz to 1 kHz.
Frequency reference source accuracy: ±2 ppm/year.

Frequency span: zero, 50 kHz to 3 GHz.
Frequency span accuracy: < ±3%.
Frequency stability residual FM: <  100 Hz_p-p/100 ms (zero span).
Sideband noise: < 100 dBc/Hz (20 kHz offset).
Resolution 3 dB bandwidth: 1 kHz to 1 MHz, 1-3 step.
Bandwidth accuracy: < ±20%.
Selectivity: < 15:1 (60 dB:3 dB).
6 dB bandwidth: 9 kHz, 120 kHz.
Video bandwidth: 10 Hz to 1 MHz, 1-10 step.

Amplitude

Amplitude measurement range: +30 dBm to average noise level.
Maximum input level: +30 dBm, 50 VDC.

Display Range -
LOG: 10 dB/div 8 div, 1,2,5 dB/div, 10 div.

LIN: 10%/div of reference level.

Reference Level Range -
LOG: -64 dBm to +40 dBm, 1 dB steps.
LIN: +141.1 µV to +22.36 V.
Input attenuator range: 0 to 50 dB, 10 dB step.

Sweep

Sweep time: 50 ms to 500 s.
Sweep time accuracy: <  ±3%.
Trigger mode: FREE RUN, VIDEO, EXT, LINE.
Sweep mode: REPEAT, SINGLE.

Displayed Noise Level

Average noise level: -113 dBm +2 f (GHz) dB (at RBW 1 kHz, VBW 10 Hz, INPUT ATT 0 dB, frequency >1 MHz).
1 dB gain compression: >-5 dBm (mixer input level, f >20 MHz).
Secondary harmonic distortion: < -70 dB (input frequency >10 MHz, mixer input level -30 dBm).
3rd Order intermodulation: < -70 dB (input frequency >10 MHz, mixer input level -30 dBm, DELTA f >50 kHz).
Other input spurious: < -60 dB (offset >20 MHz, mixer input level -30 dBm).
Residual response: < -100 dBm.
(Frequency > 1 MHz, INPUT ATT = 0 dB, input 50 Ohm terminated).

Amplitude Accuracy

Calibration signal: 30 MHz, -20 dBm ±0.3 dB.
Frequency response: < ±0.5 dB (100 kHz to 3 GHz, ATT = 10 dB).

Scale Display Accuracy -
LOG: < ±0.5 dB (0 to -20 dB) (after auto calibration).

LIN: ±5% of reference level.
Input attenuator switching accuracy: < ±0.3 dB (10 dB reference, 30 MHz).
Resolution bandwidth switching accuracy: < ±0.5 dB (after auto calibration).
IF gain error: < ±0.5 dB (after auto calibration).
Total level accuracy: ±1.5 dB (after auto calibration, REF = -50 to 0 dBm, ATT = 10 dB, 2 dB/div, RBW = 300 kHz, f >100 kHz).

Input/Output

RF input connector/impedance: N type jack/50 Ohm (nominal).
VSWR: < 1.5 (100 kHz to 2 GHz, INPUT ATT >10 dB).

10 MHz REF. input: BNC jack, 50 Ohm.
Input range: -10 dBm to +10 dBm.
Ext. trigger input: BNC jack, 10 kilohm (nominal), DC coupling.
Phone output: Mini monophonic jack, 8 Ohm.
GPIB interface: IEEE-488 bus connector.
Serial interface: D-SUB 9-Pin.
Printer interface: D-SUB 25-Pin, ESC/P, PCL.
Floppy disk drive: 3.5 in., 1.4 MB, MS DOS format.

General Specifications

Operating Conditions - 0° C to +50°C, 85% RH max. (without condensation).

Storage Conditions - -20°C to + 60°C.

Power Supply - 100/200 VAC, auto switching.
100 VAC; 100 V to 120 V, 50 Hz/60 Hz.
220 VAC; 220 V to 240 V, 50 Hz/60 Hz.

Power Consumption - 200 VA max. (100 VAC).

Safety - UL3111-1, CSA1010.1, EN61010-1, IEC61010-1.

Physical Characteristics