What are you looking for?
G2 Compact Signal Generators
General-purpose signal sources with low phase noise
Highlights
General-purpose, affordable RF and microwave signal sources
The G2 series of compact analog signal generators offers good signal purity, low phase noise, and fast switching speed with models ranging from 8 kHz to 40 GHz. With compact, lightweight options and multi-channel options with phase-coherent switching, the G2 series is a cost-effective solution for testing a wide range of applications.
- Oven-controlled crystal oscillator (OCXO) stabilized, low phase noise signals
- Fast switching down to 25 μs
- Modulation capabilities such as pulse modulation, AM, FM, PM, frequency chirp, etc.
- Sweep, trigger functions, and user-programmable external reference frequency
- Ideally suited for a wide range of applications
- Weighing under 10 lbs and operable with portable power banks, benchtop G2 units are well-suited for field work.
Key Specifications
Frequency Range
9 kHz to 40 GHz
Phase Noise at 1 GHz, 1 kHz offset
-130 dBc/Hz
Maximum Output Power at 1 GHz
+25 dBm
Switching Speed
25–30 µs
Find the Model That's Right for You
Fast RF Device Testing with Analog Sources
This application note teaches you how to streamline your workflow and boost efficiency without sacrificing accuracy using Keysight's affordable compact signal generators. It dives into practical techniques for speeding up RF testing using analog signal sources and offers insights on optimizing test setups, reducing measurement times, and maintaining reliable results—skills that can save you hours in the lab and make you a sharper problem-solver.
Featured Resources
Extend the Capabilities
Featured Resources
Want help or have questions?
G2 Signal Generators FAQs
The G2 Compact Signal Generators are designed to offer a cost-effective solution without compromising on performance, making them an attractive option compared to other signal generation tools in the market.
While pricing specifics depend on the model and configuration (e.g., frequency range or added options like UNZ for fast switching), Keysight G2 series are an affordable entry point into high-quality signal generation. The ability to upgrade via license keys—rather than purchasing entirely new units—enhances their long-term value.
For instance, users can start with a base model covering 8 kHz to 20 GHz and later expand to 40 GHz as needed, avoiding the upfront expense of a higher-spec unit. Additionally, the included KeysightCare minimizes maintenance costs, ensuring reliability without unexpected repair expenses.
A high-performance OCXO is essential for an RF signal generator because it directly affects the frequency stability, accuracy, and phase noise performance of the generated signal. Key factors improved by a high-performance OCXO include:
1. Superior Frequency Stability
OCXOs provide an exceptionally stable output frequency over time and through temperature variations. This stability is critical for applications that require long-term frequency consistency, including radar, satellite communications, and high-precision test systems.
2. Low Phase Noise Performance
The quality of a signal generator’s reference oscillator greatly impacts its phase noise. High-performance OCXOs offer very low phase noise, which is crucial for modulation accuracy, spectrum purity, and reducing jitter in digital and RF communications systems.
3. Minimal Frequency Drift
Unlike standard crystal oscillators, OCXOs reduce frequency drift due to their temperature-controlled oven, which maintains the crystal at a constant, optimal temperature. This is especially crucial for metrology and precision RF testing.
4. Improved Spectral Purity
The quality of an RF signal generator’s output spectrum is directly linked to the short-term and long-term stability of the oscillator. A high-performance OCXO ensures a clean output spectrum, reducing unwanted spurs and harmonics.
5. Better Performance in Doppler Radar and Phase-Coherent Applications
Many radar and coherent RF systems depend on a highly stable reference to maintain synchronization. An OCXO ensures phase coherence, minimizing errors in measurement and signal processing.
The G2 Compact Signal Generators come equipped with modulation capabilities to meet complex testing demands. Users can apply amplitude modulation (AM), frequency modulation (FM), phase modulation (PM), and pulse modulation, as well as capabilities like frequency chirps and configurable pulse sequences. This range of capabilities allows engineers to simulate real-world signal conditions accurately, making the G2 series suitable for everything from basic waveform generation to sophisticated radar and communication system testing.
Yes, the AP5012A G2 signal generator supports multi-channel, phase-coherent testing with a sophisticated design that also includes phase-coherent switching. This feature enables multiple channels to operate in sync, with independent control over frequency, phase, and amplitude for each channel. This capability is particularly valuable for applications like radar system testing, phased-array antenna development, or quantum computing, where precise alignment of signals across channels is necessary to achieve accurate and repeatable results.
Individual G2 signal generators can also be linked together to create additional synchronized outputs.
The G2 Compact Signal Generators offer robust sweep and trigger functionalities to enhance testing flexibility. They support fast and flexible list sweeps, where users can define custom frequency, power, and dwell time parameters. Trigger functions allow precise synchronization with external equipment, and the series includes an external reference frequency ranging from 5 to 250 MHz. These features make the G2 series adaptable for complex test sequences and synchronized multi-instrument setups.
Keysight designed the G2 series with future-proofing in mind, allowing users to upgrade or expand capabilities through software-based license keys. This means you can increase the frequency range, add new modulation options, or unlock additional features as your testing needs grow, all without needing to purchase a new unit. This upgrade path provides a cost-effective way to keep your equipment current, ensuring long-term value and adaptability.
Keysight G2 signal generators come with three years of KeysightCare technical support and a three-year extended warranty to de-risk your projects. Receive personalized, proactive, and priority support. Find answers in the knowledge center, manage service requests, and interact with Keysight experts. KeysightCare Support plans are upgradable to include calibration coverage.