Gaqqee ADF4351 RF Signal Generator 35MHz–4400MHz Type-C

Gaqqee ADF4351 RF Signal Generator — 35MHz to 4400MHz

The Gaqqee ADF4351 RF Signal Generator is a compact, versatile signal source designed for electronics engineers, hobbyists, and lab technicians. Covering a wide frequency range of 35MHz to 4,400MHz, this ADF4351-based module delivers reliable RF output through a standard SMA connector — all powered conveniently via a Type-C USB interface. Made in Mainland China. CE and RoHS certified.

Key Features

• Wide Frequency Range: 35MHz–4,400MHz output, suitable for a broad range of RF testing and development applications.
• Four Step Modes: Quickly switch between 1K, 10K, 100K, and 1M step increments for both coarse and fine frequency tuning.
• 15-Key Control Panel: Numeric keys (0–9), increment/decrement (++/–) keys, and function keys for precise frequency adjustment and transmission control.
• Type-C USB Power: Powered via USB Type-C (DC 4.5V–5.5V) — compatible with modern power banks, USB chargers, and PC ports.
• Low Power Consumption: Standby current under 25mA; transmit current under 150mA — ideal for portable and extended-use setups.
• Standard SMA Output: 50-ohm output impedance with SMA standard connector (internal thread) for easy integration into RF test setups.
• LCD1602 Display: Clear on-board display showing current step mode and frequency status at a glance.
• Continuous Scan Mode: Hold the ++/– key for over 1 second to activate automatic frequency sweep/scan; press OK to stop.

Technical Specifications

How to Use the Control Panel

The 15-key keypad includes numeric keys 0–9, ++ and – adjustment keys, and function keys. A short press of ++ or – increments or decrements the output frequency by 1 step. Holding either key for more than 1 second engages continuous scan mode. Press OK to start or stop transmission; press C to halt transmission and reset the frequency to zero. Use the <> key to cycle through the four step modes: 1K → 10K → 100K → 1M.

What's in the Box

• 1 × ADF4351 RF Signal Generator Module
• 1 × Power Cable
• 1 × Antenna

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Frequently Asked Questions

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

A: This RF signal generator covers a wide output frequency range of 35MHz to 4,400MHz, making it suitable for a broad range of RF circuit testing, antenna tuning, and electronics development tasks.

Q: What power supply does the ADF4351 signal generator require?

A: The generator is powered via a Type-C USB interface and requires a DC supply voltage between 4.5V and 5.5V. It is compatible with standard USB chargers, power banks, and PC USB ports, making it highly portable.

Q: What are the four step modes and how do I switch between them?

A: The four step modes are 1K, 10K, 100K, and 1M (Hz increments). Press the <> key on the control panel to cycle through all four modes. The currently selected step size is shown on the LCD1602 display, allowing for both quick coarse adjustments and precise fine-tuning of the output frequency.

Q: What output connector type does this RF signal generator use?

A: The output uses a standard SMA connector (internal thread) with a 50-ohm impedance. Ensure your test equipment or antenna also uses a compatible 50-ohm SMA interface for best results.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.