Rohde and Schwarz Polyskob SWOB5 Vintage Sweep Generator
Rohde & Schwarz RF Signal Sources. Frequency Range: 0.1 MHz to 1000 MHz, Dynamic Range: ~70 dB (with SWOB5-Z4 demodulator.
- Model
- Rohde & Schwarz SWOB5
- Calibration
- Available on request
- Price
- $250
- Status
- In stock
- RFQ ref
- SWOB5
This unit
The Rohde & Schwarz Polyskob SWOB5 is a precision sweep frequency generator covering 0.1 MHz to 1000 MHz, engineered for RF component testing, alignment, and characterization across manufacturing, R&D, and laboratory settings. The instrument delivers flexible sweep operation across its full frequency range or with continuously adjustable sweep widths, supporting both broadband measurements (5 MHz to 1000 MHz) and narrow-band operation (approximately 300 kHz to 50 MHz maximum). CW mode disables sweep functionality, enabling continuous tuning from 0.1 MHz to 1000 MHz for signal generation applications.
The 28 cm long-persistence display presents frequency coverage with a bright-up bar indicator on the lower scale edge. Pulse or line markers with continuously adjustable amplitude facilitate frequency-axis orientation, while a manually tunable bright-up marker momentarily halts sweep operation to enable external frequency counter triggering via the RF monitoring output. External markers may be fed into the instrument.
Sweep time adjusts continuously from 20 ms to 2 seconds. The receiver architecture combines a measuring head with a plug-in deflection amplifier section supporting single or dual-channel linear and/or logarithmic configurations. Dynamic range reaches approximately 70 dB with the active demodulator SWOB5-Z4 at maximum 50 mV driving level, or 76 dB at 1 V output voltage (rear-panel selectable).
The RF output connector is N-type male at 50 Ohm impedance.
Technical Specifications
- Frequency Range: 0.1 MHz to 1000 MHz
- Sweep Width (broadband): 5 MHz to 1000 MHz, continuously adjustable
- Sweep Width (narrow-band): approximately 300 kHz to 50 MHz maximum, continuously adjustable
- CW Operation: 0.1 MHz to 1000 MHz tunable
- Sweep Time: 20 ms to 2 seconds, continuously adjustable
- Dynamic Range: ~70 dB (with SWOB5-Z4 demodulator, 50 mV max); 76 dB (1 V output)
- Display: 28 cm diagonal long-persistence screen
- RF Output: N-type male connector, 50 Ohm
Key Features
- Pulse or line markers with adjustable amplitude for frequency navigation
- Manually tunable bright-up marker with external counter triggering capability
- External marker input support
- Plug-in deflection amplifier architecture for linear and logarithmic measurement modes
- RF monitoring output for external instrumentation
Typical Applications
- RF component testing and alignment
- Manufacturing calibration and characterization
- Research and development measurement
- Laboratory signal generation and sweeping
Compatibility & Integration Measuring heads - termination units, insertion units, and probes - are available as modular accessories. Deflection amplifiers function as interchangeable plug-ins. Model variants include the E2 (linear amplifier) and E3 (logarithmic amplifier) configurations. The SWOB5-Z4 active demodulator option extends dynamic range performance.
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 0.1 MHz to 1000 MHz | Voltage / Current Range: 50 mV maximum driving level |
Rohde & Schwarz SWOB5 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Rohde & Schwarz SWOB5. Calibration covers output frequency accuracy, output power level accuracy across the full frequency range, AM/FM/PM/pulse modulation accuracy, harmonic and spurious output levels, and phase noise floor verification. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Rohde & Schwarz SWOB5 faults: YIG oscillator failure (no output or loss of lock), step attenuator wear (output drops or steps at set attenuation), ALC loop failure (uncontrolled output power), I/Q modulator assembly failure. HP/Agilent 836xx series most common faults are YIG oscillator failure and step attenuator contact wear causing output steps or drops at specific attenuation settings. Keysight E4428C/E4438C units most commonly develop ALC loop failure and I/Q modulator assembly faults. YIG oscillator replacement and attenuator service are stocked repairs.
Rohde & Schwarz SWOB5 price
This Rohde & Schwarz SWOB5 is listed at $250. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Rohde & Schwarz SWOB5 calibration cost
NIST-traceable calibration for the Rohde & Schwarz SWOB5 is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers output frequency accuracy, output power level accuracy across the full frequency range, AM/FM/PM/pulse modulation accuracy, harmonic and spurious output levels, and phase noise floor verification. Turnaround is 1 to 3 business days after receipt. See full calibration details →
