ADF4351 RF Signal Generator 35MHz–4400MHz Precision Frequency

ADF4351 RF Signal Generator — 35MHz to 4400MHz Precision Frequency Output

The ADF4351 RF Signal Generator is a compact, high-precision frequency source built for electronics engineers, RF hobbyists, radio amateurs, and lab technicians. Covering a wide range from 35MHz to 4400MHz, it delivers stable, reliable signal output for testing, calibration, and development applications. Powered by DC 4.5V–5.5V, it's designed for easy bench-top or portable use.

Key Features

• Wide Frequency Range: Generates signals from 35MHz up to 4400MHz to cover a broad spectrum of RF applications
• Precision Frequency Control: Short-press the "++" or "–" button to increment or decrement the output frequency by 1kHz at a time for fine-tuned adjustments
• Continuous Scanning Mode: Hold the "++" or "–" button for more than 1 second to enter continuous sweep/scan mode for automated frequency stepping
• Step Increments: Supports multiple step sizes — 1kHz, 10kHz, 100kHz, and 1MHz — giving you total control over frequency adjustments
• Compact & Durable Build: Housed in an ABS enclosure measuring just 80mm × 75mm × 30mm — lightweight and easy to integrate into any workbench setup
• Operating Voltage: DC 4.5V to 5.5V supply for broad compatibility with standard lab power sources and USB power banks

Specifications

• Model: A02F-ADF4351
• Frequency Range: 35MHz – 4400MHz
• Supply Voltage: DC 4.5V – 5.5V
• Enclosure Material: ABS
• Dimensions: 80mm × 75mm × 30mm
• Step Sizes: 1kHz, 10kHz, 100kHz, 1MHz

Who Is This For?

Whether you're testing RF circuits, calibrating receivers, experimenting with amateur radio projects, or prototyping wireless designs, the ADF4351 RF Signal Generator delivers the precision and versatility you need in a compact, affordable package. It's an excellent addition to any electronics lab or maker workspace.

Learn More About RF & Signal Testing

For background on RF signal standards and electromagnetic compatibility testing, visit the NIST Antenna Metrology Program — a trusted resource from the National Institute of Standards and Technology.

Frequently Asked Questions

Q: What frequency range does the ADF4351 RF Signal Generator cover?

A: The ADF4351 RF Signal Generator covers a wide frequency range from 35MHz to 4400MHz, making it suitable for a broad variety of RF testing, calibration, and development tasks including amateur radio, circuit testing, and wireless prototyping.

Q: How do I adjust the output frequency?

A: You can fine-tune the output frequency using the "++" and "–" buttons on the device. A short press increments or decrements the frequency by 1kHz. Holding the button for more than 1 second activates continuous scanning mode, which automatically steps through frequencies. Multiple step sizes are available: 1kHz, 10kHz, 100kHz, and 1MHz.

Q: What power supply does the ADF4351 RF Signal Generator require?

A: The generator operates on a DC supply voltage between 4.5V and 5.5V, which is compatible with standard USB power sources, lab bench supplies, and most 5V adapters.

Q: What are the physical dimensions of this RF signal generator?

A: The unit measures 80mm × 75mm × 30mm and is housed in a durable ABS enclosure, making it compact and easy to use on a workbench or in portable setups.