Seeed Studio RF Explorer 3G Combo Spectrum Analyzers
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Estimated dispatch: 10–20 days after ordering.
Timing depends on supplier replenishment and may change. Shipping transit time is additional. This is an estimate, not a guaranteed dispatch or delivery date. We will notify you when your order ships or if the estimate changes. For a time-sensitive order, please contact us before paying.
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Seeed Studio RF Explorer 3G Combo Spectrum Analyzers
Compact & Portable Pocket-sized and lightweight, built with a solid aluminum case for durability. Includes a protective EVA carry case for easy transport.
Advanced Spectrum Analysis Multiple modes available: Peak Max & Hold, Normal, Overwrite, and Averaging.
Long Battery Life High-capacity LiPo battery provides over 16 hours of continuous operation, rechargeable via USB.
Cross-Platform Support Open-source Windows PC client, with expansion options through internal modules for additional bands and functionality.
Wide Frequency Coverage Covers all popular RF bands from 15 MHz up to 2.7 GHz, including 2m HAM radio, VHF, UHF, FM radio, GPS, WiFi, WiMax, Bluetooth, and more.
Note
This unit does not include RF Generator functionality, only Spectrum Analyzer functionality is available.
Description
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 dual band telescopic 144/430MHz 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.
Tech support
This product is designed by RF-Explorer
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For more info and to get started with your RF Explorer, visit the start page.
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For questions and support, please visit https://support.rf-explorer.com
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For the software for RF Explorer series, please click the following logo for more information:
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
Certification
| HSCODE | 9030401000 |
| USHSCODE | 9030400000 |
| UPC | 841454104018 |
| EUHSCODE | 9030900000 |
| COO | CHINA |
Technical details
| Dimensions | 0mm x0mm x0mm |
| Weight | G.W 372g |
| Battery | Lithium 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 Combo | 1 |
| Nagoya NA-773 wideband telescopic antenna | 1 |
| 2.4GHz band antenna | 1 |
| EVA Case | 1 |
1. General Shipping Information
- We provide reliable shipping services with a tracking number for each order.
- Shipping addresses must be entered in English and should not contain special symbols, so that the courier system can recognize your location correctly.
- Please make sure your shipping address is accurate before placing your order. We ship strictly according to the address provided at checkout.
- In-stock orders are usually dispatched within 1 business day after order confirmation.
- Estimated delivery times refer to the period after dispatch and do not include order processing time, weekends, public holidays, customs inspection, or force majeure delays.
- If you need to cancel or modify your order, please contact us before the order is marked as “Shipped”. Once shipped, the order cannot be canceled or changed.
🚀 Need Faster Shipping?
If you require expedited shipping, please contact our customer support team at info@openelab.io for a customized quote based on your destination.
2. Shipping Rates & Options
Shipping rates are calculated based on order value, destination, and available shipping methods. The final available options will be displayed at checkout.
2.1 Germany Domestic Shipping
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| Deutsche Post | €0.00 - €50.00 | €4.95 | 2-4 Business Days |
| Deutsche Post | Over €50.00 | Free | 2-4 Business Days |
|
DHL Paket (Faster Delivery) |
€0.00 - €50.00 | €6.95 | 1-3 Business Days |
|
DHL Paket (Faster Delivery) |
€50.00 - €100.00 | €2.00 | 1-3 Business Days |
|
DHL Paket (Faster Delivery) |
Over €100.00 | Free | 1-3 Business Days |
2.2 Selected EU Countries / Regions
Available EU shipping destinations are shown at checkout based on your shipping address. For orders shipped to selected EU countries or regions outside Germany, we use FedEx Regional Economy.
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| FedEx Regional Economy | €0.00 - €100.00 | €7.95 | 3-5 Business Days |
| FedEx Regional Economy | Over €100.00 | Free | 3-5 Business Days |
EU orders may be fulfilled from our Munich warehouse or, when applicable, from our Shenzhen warehouse depending on inventory availability. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.
2.3 United States
| Region | Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|---|
|
Continental U.S. (50 States) |
USPS Ground Advantage | €0.00 - €45.00 | €4.95 | 3-7 Business Days |
| USPS Ground Advantage | Over €45.00 | Free | 3-7 Business Days | |
| USPS Priority Mail | €0.00 - €45.00 | €16.95 | 1-4 Business Days | |
| USPS Priority Mail | Over €45.00 | €14.95 | 1-4 Business Days | |
|
Non-Continental U.S. (AK, HI, PR, etc.) |
USPS Ground Advantage | €0.00 - €60.00 | €6.95 | 5-9 Business Days |
| USPS Ground Advantage | Over €60.00 | Free | 5-9 Business Days |
Non-Continental U.S. regions include Alaska, American Samoa, Guam, Hawaii, the Marshall Islands, the Northern Mariana Islands, Palau, Puerto Rico, the U.S. Virgin Islands, and U.S. Armed Forces addresses.
2.4 International Destinations Outside the EU
For selected international destinations outside the EU, including Switzerland, the United Kingdom, and Norway, shipping rates are as follows:
| Order Amount | Shipping Cost |
|---|---|
| €0.00 - €300.00 | €19.95 |
| Over €300.00 | Free |
For non-EU destinations, import duties, taxes, and customs fees may be charged by the destination country and are the responsibility of the recipient.
3. Warehouses & Fulfillment
Our products may be stored in our Munich, Arlington, and Shenzhen warehouses. The actual shipping warehouse depends on product availability and destination.
3.1 Munich Warehouse
For products stored in our Munich warehouse, we use Deutsche Post or DHL Paket for domestic deliveries within Germany. For selected EU destinations outside Germany, we use FedEx Regional Economy.
3.2 Arlington Warehouse
For products stored in our Arlington warehouse, we use USPS or UPS for deliveries within the United States.
3.3 Shenzhen Warehouse
For pre-order items or products fulfilled directly from our Shenzhen warehouse, we arrange reliable international shipping based on destination and inventory status. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.
4. Inventory, Pre-orders & Split Shipments
- Inventory Status: Please check the product page for real-time stock information. If an item is out of stock in our local warehouses, it may be marked as “Pre-order”.
- Pre-order Fulfillment: Pre-order items may be shipped directly from Shenzhen or restocked to a local warehouse first before final delivery.
- Split Shipments: If your order contains both in-stock and pre-order items, we may ship them separately. No additional shipping fee will be charged for split shipments caused by our fulfillment arrangement.
5. Customs, Taxes & Delivery Issues
5.1 Customs and Taxes
For EU Member States:
Whether shipped from Germany or China, OpenELAB covers applicable import duties and taxes under DDP service where required. Customers in EU member states should not be charged additional import duties or VAT upon delivery.
For destinations outside the European Union, such as Switzerland, Norway, and the United Kingdom, import duties, taxes, and customs fees may be charged by local authorities upon delivery. These fees are the responsibility of the recipient.
5.2 Damaged, Delayed, or Lost Parcels
Please inspect your parcel upon delivery where possible. If you notice visible damage, please report it to the courier and contact us as soon as possible. This does not affect your statutory consumer rights.
If your parcel is delayed, lost, returned to sender, or the tracking information has not updated for an unusual period of time, please contact us at info@openelab.io. We will assist you in checking the shipment status with the courier.
5.3 Incorrect Address or Failed Delivery
If a parcel cannot be delivered due to an incorrect or incomplete address provided by the customer, refusal of delivery, or failure to collect the parcel, additional shipping or return costs may apply.
6. VAT
For orders within the EU, VAT is collected at checkout according to the applicable destination rules. No additional VAT should be collected upon delivery for EU member state orders covered under our DDP shipping arrangement.





