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The Anritsu MS2668C is a portable, high-performance spectrum analyzer covering 9 kHz to 40 GHz, designed for microwave and millimeter-wave device and system evaluation. The instrument combines a synthesized local oscillator architecture with a high-stability crystal reference oscillator, providing stable measurements without the frequency drift that complicates work on microwave designs. With a standard external mixer input and output, the MS2668C extends measurement capability up to 110 GHz when paired with compatible Anritsu external mixers, supporting millimeter-wave applications including ITS collision avoidance radar development and ultrahigh-speed wireless LAN work.
Application coverage on this datasheet centers on radio equipment evaluation for microwave and millimeter-wave wireless systems, with specific support for TDMA-type radio testing through the optional high-speed time domain sweep and trigger/gate circuit. The built-in measure functions address the standard radio evaluation workflow: frequency counter with 1 Hz resolution, C/N measurement, channel power, adjacent channel power, occupied frequency bandwidth, burst average power, and template pass/fail comparison. EMC pre-compliance work is supported through the spectrum analyzer's noise floor and dynamic range, and FM-demodulated waveform display enables characterization of frequency-modulated signals and VCO switching behavior.
Anritsu Corporation is a Japanese precision measurement company with roots dating to 1895. The Anritsu RF and microwave product line most relevant to spectrum analyzers like the MS2668C was significantly shaped by the 1993 acquisition of Wiltron Company, which brought network analyzer, scalar analyzer, and signal generator technology along with North American commercial presence into Anritsu. Instruments that customers may remember under the Wiltron name are now part of the Anritsu lineage, and the MS2668C represents Anritsu's own portable spectrum analyzer platform for microwave and millimeter-wave measurement work.
| Category | Parameter | Specification |
|---|---|---|
| Frequency | Frequency range | 9 kHz to 40 GHz |
| Frequency band | Band 0: 0 kHz to 3.2 GHz (n=1); Band 1-: 3.1 to 5.6 GHz (n=1); Band 1+: 5.4 to 8.1 GHz (n=1); Band 1+: 8.0 to 14.3 GHz (n=2); Band 2-: 14.1 to 26.5 GHz (n=4); Band 3-: 26.2 to 40 GHz (n=6) | |
| Pre-selector range | 3.1 to 40 GHz | |
| Frequency setting resolution | (1 × n) Hz | |
| Frequency display accuracy | ±(display frequency × reference frequency accuracy + span × span accuracy) | |
| Frequency counter | Resolution: 1 Hz, 10 Hz, 100 Hz, 1 kHz; Accuracy: Display frequency × reference frequency accuracy ±1 LSD (at S/N: ≥20 dB) | |
| Frequency span | Setting range: 0 Hz, (100 × n) Hz to 40.0 GHz; Accuracy: ±5% | |
| Resolution bandwidth (RBW, 3 dB) | 1 kHz, 3 kHz, 10 kHz, 30 kHz, 100 kHz, 300 kHz, 1 MHz, 3 MHz; Accuracy: ±20% (1 kHz to 1 MHz), ±30% (3 MHz); Selectivity (60 dB:3 dB): ≤15:1 | |
| Video bandwidth (VBW) | 1 Hz to 3 MHz (1-3 sequence), OFF | |
| Signal purity and stability | Noise sidebands: ≤-95 dBc/Hz + 20 log n (1 MHz to 40 GHz, 10 kHz offset); Residual FM: ≤20 Hz p-p/0.1 s (1 GHz, span: 0 Hz); Frequency drift: ≤200 × n Hz/min | |
| Reference oscillator | Frequency: 10 MHz; Start-up: ≤5×10⁻⁸/year; Aging rate: ≤1×10⁻⁷/year, ≤1×10⁻⁸/day; Temperature: ±5×10⁻⁸ (0° to 50°C) | |
| Amplitude | Measurement range | Average noise level to +30 dBm |
| Maximum input level | +30 dBm (CW average power, RF ATT: ≥10 dB), ±0 Vdc | |
| Average noise level (RBW: 1 kHz, VBW: 1 Hz, RF ATT: 0 dB) | ≤-115 dBm (1 MHz to 1 GHz); ≤-115 dBm + 1.5f [GHz] dB (1 to 3.1 GHz); ≤-114 dBm (3.1 to 8.1 GHz); ≤-113 dBm (8.0 to 14.3 GHz); ≤-105 dBm (14.1 to 26.5 GHz); ≤-101 dBm (26.2 to 40 GHz) | |
| Residual response | ≤-90 dBm (RF ATT: 0 dB, 1 MHz to 8.1 GHz) | |
| Reference level setting range | Log: -100 to +30 dBm; Linear: 224 µV to 7.07 V | |
| Input attenuator (RF ATT) | 0 to 70 dB (10 dB steps) | |
| Spurious Response | 2nd harmonic distortion | ≤-60 dBc (10 to 200 MHz, mixer input -30 dBm); ≤-70 dBc (0.2 to 1.55 GHz, mixer input -30 dBm); ≤-90 dBc or noise level (1.55 to 20 GHz, mixer input -10 dBm) |
| Two-signal 3rd order IMD | ≤-70 dBc (10 to 100 MHz); ≤-80 dBc (0.1 to 8.1 GHz); ≤-75 dBc or noise level (8.1 to 26.5 GHz); ≤-75 dBc or noise level typical (26.5 to 40 GHz) | |
| Image / Multiple / Out of band | Image: ≤-65 dBc (≤18 GHz), ≤-60 dBc (≤22 GHz), ≤-55 dBc (≤40 GHz); Multiple/out of band: ≤-70 dBc (≤14 GHz), ≤-60 dBc (≤26 GHz), ≤-55 dBc (≤40 GHz) | |
| 1 dB gain compression | ≥-5 dBm (≥100 MHz, at mixer input) | |
| Sweep | Sweep time | Setting range: 20 ms to 1000 s; Accuracy: ±15% (20 ms to 100 s), ±25% (110 to 1000 s), ±1% (time domain digital zero span) |
| Sweep mode | Continuous, Single | |
| Time domain sweep mode | Analog zero span, Digital zero span | |
| Zero sweep | Sweeps only in frequency range indicated by zone marker | |
| Tracking sweep | Sweeps while tracing peak points within zone marker | |
| Display | Number of data points | 501 |
| Detection mode | NORMAL, POS PEAK, NEG PEAK, SAMPLE; Switching uncertainty: ±0.5 dB | |
| Display | Color TFT-LCD, 5.5", 17 colors (RGB, each 64-scale settable), 5-step intensity | |
| Storage functions | NORMAL, VIEW, MAX HOLD, MIN HOLD, AVERAGE, CUMULATIVE, OVER WRITE | |
| Interfaces | RS-232C | Standard; outputs to printer/plotter, remote control |
| GPIB | Standard; IEEE488.2 (cannot be installed with Option 10 simultaneously) | |
| Memory card interface | Standard; PCMCIA Rel. 2.0, type-I, 2 slots; SRAM/EPROM/Flash EPROM up to 2 MB | |
| Input connector | K-J, 50 Ω | |
| 1st Local Output | 4 to 7 GHz, ≥+8 dBm, 50 Ω, SMA-J | |
| External Mixer | Frequency range | 18 to 110 GHz |
| Mixer conversion loss setting range | 15 to 85 dB | |
| Suitable mixer | 2-port mixer only (local frequency: 4 to 7 GHz, IF frequency: 689.31 MHz) | |
| PTA | Language / Capacity | PTL (interpreter based on BASIC); Program memory: Memory card; Programming capacity: 192 KB |
| General | EMC | EN61326: 1997/A2: 2001 (Class A); EN61000-3-2: 2000 (Class A); EN61326: 1997/A2: 2001 (Annex A) |
| LVD | EN61010-1: 2001 (Pollution Degree 2) | |
| Vibration | Meets MIL-STD-810D | |
| Power | 85 to 132 / 170 to 250 Vac (automatic switching), 47.5 to 63 Hz, ≤400 VA | |
| Dimensions | 320 (W) × 177 (H) × 381 (D) mm | |
| Mass | ≤15 kg (without option) | |
| Ambient temperature | 0° to +50°C (operate), -40° to +75°C (storage) |
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
Anritsu
Condition
Used
Manufacturer
Anritsu
Frequency
40 GHz
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