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Review of 10 Popular RF Signal Generators (100 kHz – 6 GHz): Features, Prices, PN Table
Published by: Sohoprolab Editorial Team | Date: July 8, 2025
Introduction
RF signal generators are essential for testing wireless modules, receivers, and RF circuits. In this review, we compare 10 of the most popular signal generators spanning 100 kHz to 6 GHz, ideal for lab, production, and design verification use. Whether you need precise modulation, fast switching, or stable phase noise, this comparison covers all key metrics.
Comparison Table: Features, Specs, PN
| Model | Freq. Range | Output Power | Phase Noise (10 kHz offset) | Modulation | Approx. Price | PN (Part Number) |
|---|---|---|---|---|---|---|
| Keysight N5172B EXG | 9 kHz – 6 GHz | +18 dBm | –122 dBc/Hz | AM/FM/IQ | $13,000 | N5172B-506 |
| Rohde & Schwarz SMB100B | 8 kHz – 6 GHz | +25 dBm | –120 dBc/Hz | AM/FM/PM/IQ | $14,500 | SMB-B106 |
| NI PXIe-5653 | 500 kHz – 6.6 GHz | +10 dBm | –120 dBc/Hz | FM/PM/IQ | $8,900 | PXIe-5653 |
| Siglent SSG6000A | 100 kHz – 6 GHz | +20 dBm | –112 dBc/Hz | AM/FM/PM/IQ | $6,500 | SSG6062A |
| Berkeley NGEN-6000 | 1 MHz – 6 GHz | +13 dBm | –115 dBc/Hz | AM/FM | $5,500 | NGEN6000 |
| Rigol DSG836A | 9 kHz – 3.6 GHz | +20 dBm | –108 dBc/Hz | AM/FM/Pulse | $4,500 | DSG836A |
| Anritsu MG3692C | 2 GHz – 20 GHz | +15 dBm | –110 dBc/Hz | AM/FM/PM | $16,000 | MG3692C |
| Tektronix TSG4106A | DC – 6 GHz | +15 dBm | –110 dBc/Hz | AM/FM/IQ | $9,800 | TSG4106A |
| Boonton SGX1000 | 100 kHz – 6 GHz | +19 dBm | –117 dBc/Hz | AM/FM/IQ | $7,800 | SGX1006 |
| LitePoint IQxel-M | 400 MHz – 6 GHz | +10 dBm | –118 dBc/Hz | IQ only | $12,000 | IQXEL-M6G |
How to Choose an RF Signal Generator
- Modulation Support: Required for simulating real-world signals.
- Phase Noise: Lower is better for receiver sensitivity testing.
- Form Factor: PXI vs. benchtop depends on system integration.
- Output Power: Ensure it meets test system requirements.
Frequently Asked Questions
- Which RF generator is best for 802.11 and Bluetooth testing?
- Models with IQ modulation like the PXIe-5653 or SMB100B are ideal for wireless standards testing.
- Can I use a PXI RF generator in a benchtop setup?
- Yes, with a PXI chassis and embedded or remote controller.
- What software works with NI PXIe generators?
- LabVIEW, TestStand, and RFmx support NI signal generators.
Conclusion
Whether you’re building a wireless test platform or updating your RF lab, choosing the right RF signal generator impacts accuracy and throughput. For modular testing solutions and PXI-based sources, explore our Wireless Design & Test section or see compatible RF accessories in the Electronic Test & Instrumentation category.