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XGY Tek

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Signal Generators

RF Signal Generators for Receiver, Transceiver, and Component Test

XGY Tek supplies portable, benchtop, PXIe, and fixed-frequency RF signal sources to labs worldwide working on 5G, satellite, radar, aerospace, receiver, and component programs. The swept instruments reach from 9 kHz to 45 GHz by model, while the YSG-140 provides a factory-set low-phase-noise output from 1 to 52 GHz.

Selection should document frequency band, output range from low-level receiver sensitivity work to +17 dBm class drive, phase-noise target such as -110 dBc/Hz at 10 kHz offset and 10 GHz where applicable, 0.001 Hz frequency-resolution need, modulation format, trigger behavior, reference clock, attenuation path, and SCPI control.

The acceptance file should include calibration status, output power check at at least 3 levels, frequency accuracy check, modulation or pulse check, and a scriptable setup state before the source is used in production evidence. For source selection, see our RF signal generator guide.

Calibration documentation and RF support scope are confirmed during quotation.

Signal Generators product list

Selection path

Portable, benchtop, PXIe, and fixed-frequency signal sources

Select by frequency coverage, required output range, phase-noise target, modulation workflow, and physical format; then verify the applicable conditions on the product page and datasheet.

Format Model Coverage Best fit
Portable RF source YSG-P400 200 MHz to 40 GHz; -40 dBm to +10 dBm; less than 200 us switching Field, manufacturing, and portable R&D stimulus requiring pulse, AM, or FM modulation in an instrument under 3 kg.
Compact benchtop YSG-400B Series 9 kHz to 40 GHz; -120 dBm to +17 dBm; 0.001 Hz resolution Benchtop CW, sweep, and pulse stimulus requiring a broad low-level-to-positive-power output range.
Dual-slot 3U PXIe YSG-5451 9 kHz to 45 GHz; -100 dBm to +10 dBm; 100 ns minimum pulse width PXIe systems needing compact microwave analog stimulus with AM, FM, PM, and pulse modulation.
Fixed-frequency module YSG-140 Factory-set output from 1 to 52 GHz; at least +10 dBm; at least 70 dBc spurious suppression Low-phase-noise local-oscillator or reference duty where one factory-configured RF output frequency is required.

Frequently Asked Questions

What signal generators does XGY Tek offer?
Our catalogue includes the YSG-P400 series portable RF signal generators (200 MHz to 40 GHz) for field receiver test and remote stimulus; the YSG-400B benchtop source and YSG-5451 PXIe source for laboratory and automated stimulus; and the YSG-140 low-phase-noise frequency source for a factory-set output from 1 to 52 GHz. Additional PXIe instruments are available through our modular test instruments line.
When do I need a low-phase-noise frequency source like the YSG-140?
Low-phase-noise sources are required whenever phase noise on the LO directly limits the measurement floor - receiver sensitivity, radar Doppler resolution, jitter-sensitive ADC clocking, and atomic-clock or quantum-readout chains. The YSG-140 is engineered specifically for these workloads, delivering reference-grade phase noise that lets your spectrum analyzer or VNA hit its rated performance rather than inheriting source noise.
How should I compare low-phase-noise RF signal generators?
Compare phase noise at the carrier frequency and offset that control your measurement, then check spurious and harmonic suppression, frequency coverage, output level, reference-lock behaviour, modulation needs, and automation interfaces. A single best-case phase-noise number is not enough. The YSG-140 and YSG-140L publish phase-noise values at multiple offsets and configured output frequencies so the source can be reviewed against the actual test plan.
Can XGY signal generators integrate with existing test rigs?
Yes - all XGY signal generators expose standard SCPI command interfaces and ship with Windows and Linux integration libraries. Python and LabVIEW drivers are available, and the units can serve as drop-in replacements for legacy Keysight or R&S sources in most automated test scripts. For custom PXIe rack builds or full ATE integration, see our Custom Automation service or request a quote.
What should be checked before using a signal generator for receiver sensitivity?
Check output level accuracy, external attenuation, cable loss, modulation setup, trigger timing, reference clock, calibration status, and whether the receiver input plane has been defined. Low-level tests fail easily when the loss budget is assumed.
When is phase noise the controlling specification?
Phase noise controls the result when testing radar Doppler, reciprocal mixing, jitter-sensitive clocks, high-order modulation, low-noise receivers, and narrowband measurements near a carrier. In those cases, output power alone is not a useful source specification.

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Selection Guides

Read buyer's guides to choose the right instrument or system for your application.

How to Choose an RF Signal Generator

How to Choose an RF Signal Generator

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