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The Advantest R3131A is a personal spectrum analyzer that combines the high accuracy needed for digital radio measurement with an emphasis on operability and ease of use. It covers a 9 kHz to 3 GHz frequency range and pairs that span with frequency stabilization, improved span accuracy, and improved level accuracy, along with a 5.7-inch black-and-white STN display for clear readout of results.
The R3131A is intended for use across diverse fields and applications. These include mobile communications, EMC work, parts evaluation, installation and maintenance, development and production lines, and CATV. Its operation-key arrangement, large-character display, and improved system operation speed are oriented toward fast, repeatable measurement on the bench and on the line.
ValueTronics stocks and holds its own inventory in a 20,000 sq ft secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. Every pre-owned instrument is inspected and functionally verified in-house before it ships, while new units ship factory-sealed exactly as received from the manufacturer. Holding the equipment ourselves means we can speak to what we carry and get the right instrument out the door quickly.
Advantest Corporation traces its roots to Takeda Riken, the company under which it operated before adopting the Advantest name in 1985.
| Specification | Value |
|---|---|
| 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) (S/N ≥25 dB, SPAN ≤200 MHz) |
| Marker counter resolution | 1 Hz to 1 kHz |
| Frequency reference source accuracy | ±2 ppm/year; ±5 ppm at operating temperature range |
| Frequency span | zero, 10 kHz to 3 GHz |
| Frequency span accuracy | ≤±3% (50 kHz ≤ span ≤ 3 GHz); ≤±10% (10 kHz ≤ span < 50 kHz, typ. ±3%) |
| Residual FM | ≤100 Hzp-p/100 ms (zero span) |
| Sideband noise | ≤-100 dBc/Hz (20 kHz offset) |
| Resolution 3 dB bandwidth | 300 Hz to 1 MHz (1-3 step) |
| Bandwidth accuracy | ≤±20% (RBW 1 kHz to 1 MHz); ≤±50% (RBW 300 Hz, typ. ±20%) |
| Selectivity (60 dB:3 dB) | ≤15:1 (RBW 1 kHz to 1 MHz); ≤20:1 (RBW 300 Hz, 50 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 |
| Display range (LIN) | 10%/div of reference level |
| Reference level range (LOG) | -64 dBm to +40 dBm |
| Reference level range (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 |
| Dynamic range | |
| 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, ∆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 Ω 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); ≤±1 dB (100 kHz to 2 GHz); ≤±2 dB (9 kHz to 3 GHz) (after calibration at 30 MHz reference) |
| Scale display accuracy (LOG) | ≤±0.5 dB (0 to -20 dB); ≤±1.5 dB/70 dB; ≤±1.0 dB/10 dB; ≤±0.2 dB/1 dB (after auto calibration) |
| Scale display accuracy (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 Ω (nominal) |
| VSWR | ≤1.5 (100 kHz to 2 GHz, INPUT ATT ≥10 dB); ≤2.0 (9 kHz to 3 GHz, INPUT ATT ≥10 dB) |
| 10 MHz REF. input | BNC jack, 50 Ω; Input range: -10 dBm to +10 dBm |
| Ext. trigger input | BNC jack, 10 kΩ (nominal), DC coupling |
| Phone output | Mini monophonic jack, 8 Ω |
| 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-inch, 1.4 Mbyte, 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) |
| Weight | 12 kg or less |
| Dimensions | Approx. 424 mm (W) x 177 mm (H) x 300 mm (D) |
| OPT.74 Tracking Generator (Option) | |
| Frequency range | 100 kHz to 3.0 GHz |
| Output level range | 0 dBm to -59.9 dBm (0.1 dB step) |
| Output level accuracy | ≤±0.5 dB (30 MHz, -10 dBm, 20°C to 30°C) |
| Output level flatness (at -10 dBm, referenced to 30 MHz) | ≤±1.0 dB (100 kHz to 1.0 GHz); ≤±1.5 dB (100 kHz to 3.0 GHz) |
| Output level switching error (referenced to -10 dBm) | ≤±1.0 dB (100 kHz to 1.0 GHz, output level ≥-30 dBm); ≤±2.0 dB (100 kHz to 2.6 GHz); ≤±3.0 dB (100 kHz to 3.0 GHz) |
| Output spurious - Harmonic | ≤-20 dBc (output level = -10 dBm) |
| Output spurious - Non-harmonic | ≤-30 dBc (output level = -10 dBm) |
Important: Maximum input level: +30 dBm, 50 VDC.
Recommended pairing: use the SWR bridge ZRB2 with the OPT.74 tracking generator to measure the reflection characteristic of antennas and filters.
This pre-owned unit is inspected and functionally verified in-house before it ships and is backed by our pre-owned warranty. To confirm its exact condition, firmware revision, installed options, or included accessories for your application before ordering, contact our Test Architects.
ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application.
Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.
Model No
Advantest
Condition
Pre-Owned
Manufacturer
Advantest
Spec_ana_freq
9 kHz to 3 GHz
74
Tracking Generator
30+ Years in Business
Secure Payments
Sell Test Equipments
Knowledgeable Staff
On-site Lab
30+ Years in Business
Secure Payments
Sell Test Equipments
Knowledgeable Staff
On-site Lab
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