SKU: 85864955581

RF Explorer 4G Combo Plus Slim Spectrum Analyser

Sale price$172.09 Regular price$191.21
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Ships within 48 hours · Estimated delivery Aug 20 - Aug 25

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Description

RF Explorer 4G Combo Plus Slim Spectrum AnalyserWhen compared to the standard 6G Combo model, the new SLIM design offers an outstanding robust enclosure with a strong metallic body and shiny varnished paint, a more convenient USB connector on the side, and a larger internal battery capacity. Features Internal LNA amplifier and selectable attenuator for additional power range handling. Low frequency support from 50KHz covering LF, MF, HF, VHF, and UHF High frequency support covering all ranges up to

When compared to the standard 6G Combo model, the new SLIM design offers an outstanding robust enclosure with a strong metallic body and shiny varnished paint, a more convenient USB connector on the side, and a larger internal battery capacity.

Features

  • Internal LNA amplifier and selectable attenuator for additional power range handling.
  • Low-frequency support from 50KHz covering LF, MF, HF, VHF, and UHF
  • High-frequency support covering all ranges up to 4GHz with no gaps.
  • New HELP and SET buttons to improve user interface and PRESET configuration selection with 2-clicks
  • Ideal choice for all usable HAM bands.
  • Pocket size and lightweight
  • Solid metal case
  • Spectrum Analyzer mode with Peak Max and Hold, Normal, Overwrite and Averaging modes
  • High capacity internal Lithium battery for 10hs+ of continuous run, rechargeable by USB
  • Multi-platform Windows/Linux/MacOS Open Source software and API libraries

Description

RF Explorer 4G COMBO+ is a powerful Spectrum Analyzer, covering the full range starting at 50KHz up to 4GHz with no gaps or limitations. A future firmware license feature will allow it to expand the range up to 5.1GHz.

When compared to the standard 3G Combo model, the new SLIM design offers an outstanding robust enclosure with a strong metallic body and shiny varnished paint, additional frequency coverage, and power sensitivity, a more convenient USB connector on the side and larger internal battery capacity.

What is an RF Explorer Spectrum Analyzer?

An RF Explorer Spectrum Analyzer is a special device designed to detect very sensitive signal radiation and identify signal interference, tune antenna setups, detect signal leakage and find hidden bugs, among many other applications.
The combination of small size, great sensitivity, and robust design makes it the ideal instrument to carry on for indoor and outdoor measurements.

When connected to a computer, it can be controlled by free software available for download with stunning high-resolution graphics, data storage, and reply features.

How RF Explorer Works?

For introductory details and quick start guide, please visit www.rf-explorer.com/start

For best results detecting near field signal sources or interferences, we recommend the RF Explorer Near Field Antenna Kit

Specifications

  • Frequency band:
    • Left connector: 0.05 - 960MHz
    • Right connector: 240 - 4000MHz
  • Frequency span in a single sweep: 2 - 960MHz
  • Internal selectable LNA 25dB gain
  • Internal selectable Attenuators 30dB and 60dB
  • Wifi Analyzer for the 2.4GHz band
  • Graphics LCD 128x64 pixels, great visibility outdoors
  • Backlight for great visibility indoor
  • Internal Lithium-Ion 1800mA/h rechargeable battery
  • Standard SMA 50 ohms connectors
  • Wideband 144/433MHz dual band telescopic antenna included
  • UHF 400-900MHz rubber duck articulated antenna included
  • 2.4GHz whip antenna included
  • Amplitude resolution: 0.5dBm
  • Dynamic range: -125dBm to 10dBm
  • Absolute Max input power: +30dBm
  • Average noise level (typical LNA): -125dBm
  • Frequency stability and accuracy (typical): +-1.0ppm
  • Amplitude stability and accuracy (typical): +-3dBm
  • Frequency resolution: 1Khz
  • Resolution bandwidth (RBW): automatic 2.6Khz to 600Khz
  • Support included for Windows, Linux and MacOS X

Applications

  • RF Spectrum Analysis for FM, TV and DTV, ISM, RFID, GSM, 4G/5G, IoT, GPS, Bluetooth
  • WiFi analysis and fine-tuning
  • Interference hunting
  • EMC pre-testing
  • RF device tuning (with Signal Generator working as Tracking SNA): Check this link for more details

Part List

  • 1 x Spectrum Analyzer
  • 1 x Mini USB cable
  • 1 x Dual band 144/430MHz Telescopic antenna
  • 1 x UHF 400-900Mhz antenna
  • 1 x 2.4GHz whip antenna
  • 1 x EVA case

Resources

Compliance

All RF Explorer models are complaint with FCC as well as CE regulations.

All RF Explorer Wideband models have been certified under EN/IEC61236 and EN/IEC61000.

All RF Explorer models are RoHS compliant

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 85864955581

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4.1 ★★★★★
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Product Reviews
J
Verified Purchase
Jason G
Fort Morgan, US
★★★★★ 1
Do not buy
Color: Green/Black
Do not buy. When I received the watch it did not work and the battery was dead. I bought a new battery and it killed that one as well after about a month.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
M
Verified Purchase
Miles Connell
Alexandria, US
★★★★★ 5
Inexpensive doesn’t mean cheap.
Color: Black/Orange
After 10 months, zero complaints. Well, I got rid of the horrible NATO strap 🙄. That’s a personal preference. Easy to swap out to whatever you like. Keeps accurate time meaning it’s the same time. I’m not micro analyzing it and the seconds gained/lost. It has a confident look and feel and makes you feel good when wearing it. Sure it’s not high priced but it’s not cheap. Very comfortable, light and not unincumbered. If this is what you’re looking at, you’d be satisfied. Great looking, durable and simple watch. Full confidence.
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Reviewed in the United States on October 25, 2025
B
Verified Purchase
Buyer
Bozeman, US
★★★★★ 3
Budget Seiko Prospex this is not
Color: Black/Orange
Bought this as a cheap work watch, but I guess all the budget went into the solar technology. No date adjust feature, gotta crank the crown over and over to adjust the date. (Also no screw-down crown, but that's expected at this price) Fake diver bezel. Lol why? Cringe as heck. Should of just put a compass bezel on there instead tbh. Cheap plastic crystal, scratches and mars just by looking at it. Okay NATO strap. Falls apart quickly, but it's easily replaceable with a better quality one. Decent lume on the hands, but none on the hour markers even though it looks like there is. Looks cool.
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Reviewed in the United States on June 13, 2025
M
Verified Purchase
Michael Miracle
Phoenix, US
★★★★★ 5
Simplicity
Color: Black/Orange
This watch was received exactly as advertised. First off the watch is economical compared to other watches that advertise the same details. I will say that I have gone through numerous Luminox watches only to be disappointed. This watch fits the bill. It does have solar cells which mean it needs to be exposed to light to keep running, not a problem. Three minutes under my surefire light I am golden. The bezel doesn't rotate actually no big deal for me. I have always required that the bezel moves not anymore after having a bezel that rotates I use it next to never. Here's why, the more I rotate the bezel the more the numbers wear off. The strap on the watch with the catches for the strap are perfect. They actually hold the watch strap in place in lieu of like other big name brands that just flop and slide. As far as everyday use goes this watch is my go to. To be honest I have purchased three. This is the only watch I will wear moving forward, yeah the glass my scratch but even the big names like the Luminox I spoke of earlier scratches too.
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Reviewed in the United States on April 4, 2026
J
Verified Purchase
Jahn
Phoenix, US
★★★★★ 5
Excellent product, super good quality
Color: White, Size: Large
I think this is one of the best products I’ve bought on Amazon in recent years. I recommend it 100%; the fabric has a soft, comfortable texture, unlike other Oxford fabrics, which tend to be thicker and stiffer. It is easy—very easy—to iron, and the sizing is spot-on; I wear a size L, and it fit me perfectly. I will definitely be buying this shirt in black and navy blue.
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Reviewed in the United States on May 17, 2026

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