RF Explorer - 3G Combo
This product contains battery, might applys to shipping constriction.

RF Explorer - 3G Combo

SKU 109990009
4 Available
$269.00/ 1pcs+


RF Explorer is a handheld digital spectrum analyzer, a very affordable tool for work in all popular frequency bands. It is based on a highly integrated frequency synthesizer and double balanced mixer which offers high performance, compact size, low consumption and low cost.

It has been designed to be used equally well outdoor and indoor, and can be connected to a PC for extra functionality using standard mini-USB 2.0 connector.

This model includes a WSUB1G baseline unit plus an RFEMWSUB3G Expansion Module conveniently assembled and tested. It comes with two SMA connectors and two antennas,a nice Nagoya NA-773 wideband telescopic antenna for all Sub-GHz frequencies and a whip helical for 2.4GHz band. Additional, specific band antennas may be needed to cover efficiently some of the frequencies supported.

The combination of these two models offer the wide band coverage of the WSUB3G module, together with the highest sensitivity and quick response of the WSUB1G model for the popular sub-1GHz frequencies.


  • Pocket size and light weight

  • Solid aluminum metal case

  • Includes a transport EVA carry case for RF Explorer

  • Spectrum Analyzer mode with Peak Max and Hold, Normal, Overwrite and Averaging modes

  • Lifetime free firmware upgrades available, open to community requested features

  • High capacity Lipo for 16hs+ of continuous run, rechargeable by USB

  • Windows PC client Open Source

  • Can be extended with internal Expansion Modules for additional band and functionality

  • Wide band coverage to all popular RF frequencies, starting at 15MHz and going up to 2.7GHz. This include very interesting frequency areas such as 2m HAM radio, all VHF and UHF, FM radio, GPS, WiFi and WiMax, Bluetooth, etc.

  • Firmware: RF Explorer 3G Combo is delivered with upgraded firmware v1.09. Note some of the features and operation accuracy will be improved in upcoming lifetime free firmware revisions.


This unit does not include RF Generator functionality, only Spectrum Analyzer functionality is available.

Tech support

This product is designed by RF-Explorer,

  • For more info and to get started with your RF Explorer, visit the start page.

  • For questions and support, please visit https://support.rf-explorer.com

  • For the software for RF Explorer series, please click the following logo for more information: 


If you'd like to buy or change the RF Explorer Battery, please click here.

Technical Details

Dimensions0mm x 0mm x 0mm
WeightG.W 372g    
BatteryLithium Cells / Batteries contained in equipment UN3481 - PI967
Frequency band 15-2700 MHz
Frequency span 112KHz - 600MHz
Graphics LCD 128x64 pixels, great visibility outdoors
PC Windows client supports Windows XP/Vista/Win7 both 32 and 64bits
Backlight for great indoor visibility
2 standard SMA 50 ohms connector, one for Sub-GHz wideband Nagoya NA-773 telescopic antenna included and another 2.4Ghzone for 15-2700 MHz band with helical antenna included.
Amplitude resolution 0.5dBm
Dynamic range
Left SMA port (WSUB1G) -115dBm to 0dBm
Right SMA port (WSUB3G) -110dBm to -10dBm
Absolute Max input power
Left SMA port (WSUB1G) +5dBm
Right SMA port (WSUB3G) +30dBm
Average noise level (typical) -110dBm
Frequency stability and accuracy (typical) +-10ppm
Amplitude stability and accuracy (typical) +-6dBm
Frequency resolution 1Khz
Resolution bandwidth (RBW) automatic 3Khz to 600Khz
Weight 185g
Size 113x70x25 mm

Part List

RF Explorer 3G Combo1
Nagoya NA-773 wideband telescopic antenna1
2.4GHz band antenna1
EVA Case1




Questions and Answers

What is the measurement range? I want to search 10 devices in a 1m^3 rack for one noise source. Would it be possible?
on Mar 12,2018
Reply upvote ()
Hi, the range at which you can detect the problem is dependant on how powerful the noise is. In any case a 1m^3 is very small space so there will be no problem detecting the noise. But for accurate location of the noise itself (which can be a wrong connector, cable or device) we suggest the near field antennas: https://www.seeedstudio.com/RF-Explorer-Near-Field-Antenna-Kit-p-2784.html
on Mar 13,2018 00:01 AM
Reply upvote ()
Thank you for reply. I understand to need the near field antennas. What's the reception range of RF Explorer RFEAH-25 ? It's 25mm or bigger than 25mm ?
on Mar 13,2018 09:02 AM
Reply upvote ()
Do not buy!
on Aug 05,2018
Reply upvote ()
Hi, For any problem with purchase/tech/shipping issue please kindly contact order@seeed.cc, they would get back to you.
on Aug 07,2018 17:47 PM
Reply upvote ()
what is range?
on Jul 05,2018
Reply upvote ()
<a href="javascript:alert(document.domain)">mono</a>
on Jul 05,2018 10:09 AM
Reply upvote ()
Wondering what this item is based on?
on Oct 19,2016
Reply upvote ()
Interesting.... I am not sure what I am missing the RFM22 looks like a 433Mhz board, how does this measure all the way to 2.7G?
on Oct 20,2016 10:46 AM
Reply upvote ()
Is there a version, either available now or in the near future, that encompasses a HD color screen, perhaps with multiple markers?
on Oct 19,2016
Reply upvote ()
Multiple markers will be available in a future firmware upgrade in the current model offering. But anyway yes, there may be a color screen unit in the future as well.
on Oct 20,2016 10:45 AM
Reply upvote ()

    View History

    RF Explorer - 3G Combo

    SKU 109990009
    4 Available
    $269.00/ 1pcs+
    • Description
    • Technical Details
    • Learn
    • Reviews
    • Questions and Answers
    Notify me when it's back in stock