> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# RF Explorer - 3G Combo (Seeed Studio)

**Type:** Product page · **SKU:** SS109990009 · **Brand:** [Seeed Studio](https://core-electronics.com.au/brands/seeed-studio-australia)
**Page:** https://core-electronics.com.au/rf-explorer-3g-combo-seeed-studio.html ([markdown](https://core-electronics.com.au/rf-explorer-3g-combo-seeed-studio.html.md))

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...

## Pricing

- **Price:** $459.95 (inc GST) — $418.14 AUD, exc GST
- **Quantity discounts:** 3+ $401.41 (exc GST) · 5+ $388.86 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Sep 03 and Sep 07.

## Restrictions

**For use in Australia**

- Operate only in bands and with settings that are permitted for your location and application. Check this product’s supported frequencies in the description/specs.
- If you intend to operate outside shared/licence‑exempt conditions (e.g. in other bands, at higher power, with high‑gain antennas, or extended duty cycles), you must have the appropriate authorisation.
 
**For use in other regions**

- Follow the spectrum rules for your country/region and select frequencies and settings accordingly.

A declaration of use will need to be submitted during checkout.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=SS109990009:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/SS109990009:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

**RF Explorer** is a handheld digital spectrum analyzer - a convenient tool for work in all popular frequency bands. It's based on an integrated frequency synthesizer and double-balanced mixer which offers high performance, compact size, and low power consumption.
The RF Explorer has been designed for both indoor and outdoor, and can be connected to a PC for extra functionality using a standard mini-USB lead.
This model features a WSUB1G base unit with a RFEMWSUB3G expansion-module already assembled and tested. It comes with two SMA connectors and two antennas: a Nagoya NA-773 wideband telescopic antenna for Sub-GHz frequencies and a whip helical for 2.4GHz band. Additional, specific-band antennas may be needed to cover some of the frequencies supported.

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

### Features

- Spectrum Analyser 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 16hrs+ of continuous run, rechargeable by USB
- Sturdy aluminium chassis
- Carry pouch
- Open source Windows PC client
- Can be extended with internal Expansion Modules for additional bands and functionality
- Wide band coverage: 15MHz to 2.7GHz. These frequencies include 2m HAM radio, VHF and UHF, FM radio, GPS, WiFi and WiMax, Bluetooth, etc.
 
### Specifications

- 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 connectors, one for a Sub-GHz wideband Nagoya NA-773 telescopic antenna included and another 2.4Gh zone 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
 
### Resources

- [Introducing RF Explorer Spectrum Analyzer Product Family](https://www.seeedstudio.com/blog/2019/08/01/introducing-rf-explorer-spectrum-analyzer-product-family/)
- [Full comparison of RF Explorer: Find the Right RF Explorer for Your Wireless Project](https://j3.rf-explorer.com/menu-models)
- [RF Explorer Articles and FAQ](https://j3.rf-explorer.com/articles-faq)
- [RF Explorer Youtube Channel](https://www.youtube.com/rfexplorer)
- [Getting Started with RF Explorer Spectrum Analyzer](https://www.rf-explorer.com/start)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/8/y/8y8fz53q6ypjj5rist80kfim.jpg)
