The RF Explorer 4G COMBO+ is a compact and powerful handheld spectrum analyzer offering continuous frequency coverage from 50 kHz to 4 GHz, with optional firmware expansion up to 5.1 GHz. Designed with a robust metallic enclosure and sleek varnished finish, it delivers high sensitivity for both indoor and outdoor RF measurements. An internal LNA amplifier and selectable attenuator provide excellent signal detection across a wide dynamic range, while PRESET configuration and dedicated HELP/SET buttons ensure fast and intuitive operation. It fully supports all HAM bands, making it an excellent choice for amateur radio operators and RF professionals alike.
Pocket-sized and lightweight, the device features multiple analyzer modes including Peak Max & Hold, Normal, Overwrite, and Averaging for versatile signal analysis. A high-capacity internal lithium battery provides over 10 hours of operation with convenient USB recharging. Multi-platform software and an Open Source API enable remote control, data logging, and high-resolution graphical display. Compatible with accessories such as the RF Explorer Holder SLIM and Near Field Antenna Kit, the RF Explorer 4G COMBO+ delivers reliable, flexible, and high-performance RF analysis for both professional and hobbyist applications.
Features/ Technical Specifications:
Internal LNA amplifier & selectable attenuator
Frequency coverage: 50 kHz – 4 GHz (LF/MF/HF/VHF/UHF)
PRESET configuration & HELP/SET buttons
Supports all HAM bands
Pocket size, lightweight, solid metal case
Spectrum Analyzer modes: Peak Max & Hold, Normal, Overwrite, Averaging
High-capacity internal Lithium battery (10h+ runtime, USB rechargeable)
Multi-platform software & Open Source API (Windows / Linux / MacOS)
We aim to dispatch all orders within 24 hours (Mon–Fri). Tracking details are provided as soon as your parcel has been dispatched.
For international shipments, we take extra care to ensure your items are fully protected in transit and pass smoothly through customs.
Please allow one additional day for secure packaging and export paperwork to be completed.
Delivered Duty & Tax Paid — USA & Canada. When shipping to the United States or Canada, all import duties, customs fees and taxes are included in your total. There are no extra charges on delivery — what you pay at checkout is the final price.
✔ Duty & tax paid for USA & Canada
✔ Hassle-free customs clearance
✔ Transparent pricing — no hidden fees
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