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 Jul 15 - Jul 20

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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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LORI
Port Orchard, US
★★★★★ 5
LOVE THESE
Size: 3 Little Kid, Color: Hot Pink/Multi
Really nice. Pix don’t do them justice.
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Reviewed in the United States on May 27, 2026
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Working Momma
Grantham, US
★★★★★ 5
Great for busy feet
Size: 13 Little Kid, Color: Hot Pink/Multi, Size: 13 Little Kid, Color: Hot Pink/Multi
My five-year-old daughter loves these Skechers slip-ins—and she is not easy on her shoes! You can see in the photo, she’s already put plenty of miles on them. They’ve been through the washing machine at least twice and still look great—the bright colors are a big hit with her and they hold up well in the wash. One of the elastic bands on top did come loose, but I was able to fix it quickly with a dab of superglue. She slips them on and off all by herself, which is perfect as we’re still learning to tie laces. All in all, a great purchase for the price—especially since kids grow so fast and put their shoes through a lot!
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Reviewed in the United States on May 24, 2025
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KelQL
Waukegan, US
★★★★★ 5
Cute slip-ons - so easy and quick!
Size: 13 Little Kid, Color: Hot Pink/Multi
These shoes are adorable, comfortable according to my kid, and super easy to pull on!
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Reviewed in the United States on January 17, 2026
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Rick
Dallas, US
★★★★★ 5
Durable
Size: 6 Big Kid, Color: Aqua/Multi
Good shoes. True to size
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Reviewed in the United States on February 18, 2026
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Nadezhda
Phoenix, US
★★★★★ 5
So cute and comfy for my little one!
Size: 11 Little Kid, Color: Black
Bought these for my 4 year old daughter and we both love them. She wants to wear them every single day! They fit true to size and look adorable. Great quality for the price.​​​​​​​​​​​​​​​​
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Reviewed in the United States on April 30, 2026

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