Tagged: dongle

Buy RTL-SDR Dongles (RTL2832U)

Where to Buy RTLSDR RTL2832U DVB-T Tuner Dongles

The R820T2 RTL-SDR is currently the cheapest, most common and most performing in terms of general sensitivity. The R820T2 has a frequency range of  24 – 1766 MHz and is fully 100% compatible with any software for the older R820T.

We at RTL-SDR.com now sell improved RTL-SDR dongles at low prices with free shipping. See our post on these new units for a full overview of all the features. Our dongles come with:

  • 1 PPM temperature compensated oscillator (TCXO) – Accurate tuning and almost zero temperature drift (2 PPM initial offset, 1 PPM temperature drift)
  • SMA female antenna port – Most dongles use the less common MCX or PAL antenna ports. SMA is more common, so more adapters and antennas are available for it. It is also more durable and has lower insertion losses.
  • R820T2 tuner – More sensitive than the older R820T tuner. 100% compatible with software for the older R820T.
  • Improved component tolerances – Allows the RTL-SDR to work more optimally over all frequencies.
  • Experimental: 4.5V USB powered bias tee - Can be enabled by soldering two pads on the PCB together. This allows the RTL-SDR to power LNA’s (like the LNA4ALL and HABAMP) and active antennas through the coax cable.
  • Experimental: Break out pads for direct sampling - Allows easier soldering to pins 4 & 5 on the RTL2832U for enabling the direct sampling mod.

US Shipping: Buy on Amazon and receive FREE domestic shipping for orders over $35 and free two day shipping for Prime subscribers! Or use our international cart for free shipping from China.

International Shipping: FREE registered air mail from China! Express shipping also available. (Free shipping excludes Hong Kong)

RTL-SDR Blog R820T2 RTL2832U 1PPM TCXO SMA Software Defined Radio with 2x Telescopic Antennas
RTL-SDR Blog R820T2 RTL2832U 1PPM TCXO SMA Software Defined Radio with 2x Telescopic Antennas

Includes 1x RTL-SDR Blog brand R820T2 RTL2832U 1PPM TCXO SMA Dongle, 1x 6cm to 20cm telescopic antenna, 1x 20cm to 1.5m telescopic antenna and 1x 4.5cm diameter magnetic mount base with 1M RG174.

Several improvements over generic brands including use of the R820T2 tuner, improved component tolerances, a 1 PPM temperature compensated oscillator (TCXO), SMA F connector, bias tee circuit and break out pads for easy direct sampling modification.

Amazon USA in stock.
Chinese warehouse –
International sales of these units with antennas from the Chinese warehouse are briefly suspended while we fix an issue with damage caused by rough international shipping. If your antennas arrived broken, or the screw on the base was pushed in during transit please contact us at rtlsdrblog@gmail.com and we will refund you the $5 cost of the antennas. Self repair info. Amazon and dongle only units are shipping normally.

 
RTL-SDR Blog R820T2 RTL2832U 1PPM TCXO SMA Software Defined Radio (Dongle Only)
RTL-SDR Blog R820T2 RTL2832U 1PPM TCXO SMA Software Defined Radio (Dongle Only)

Includes 1x RTL-SDR Blog brand R820T2 RTL2832U 1PPM TCXO SMA Dongle.

Several improvements over generic brands including use of the R820T2 tuner, improved component tolerances, a 1 PPM temperature compensated oscillator (TCXO), SMA F connector, bias tee circuit and break out pads for easy direct sampling modification.

Amazon USA in stock.
Chinese warehouse in stock.

 
RTL-SDR Blog SMA Pigtail Antenna Adapter Set
RTL-SDR Blog SMA Pigtail Antenna Adapter Set

Includes 1x SMA Pigtail adapter set (6 adapters)

Set of six SMA pigtail adapters with 20cm of RG316 cabling. Contains five SMA to female (Type N, UHF, BNC, PAL, Type F) adapters and one bonus SMA male to SMA male adapter which is often used to connect to devices like upconverters.

Amazon USA – Not in stock. Stock delayed by UPS.
Chinese warehouse in stock.

 
RTL-SDR Blog SMA Straight Antenna Adapter Set
RTL-SDR Blog SMA Straight Antenna Adapter Set

Includes 1x SMA straight adapter set (6 adapters)

Set of six straight adapters with. Contains five SMA to female (Type N, UHF, BNC, PAL, Type F) adapters and one bonus SMA male to SMA male adapter which is often used to connect to devices like upconverters. Less loss than the pigtail adapters.

Amazon USA – Not in stock. Stock delayed by UPS.
Chinese warehouse in stock.

 
RTL-SDR Blog MCX Pigtail Antenna Adapter Set
RTL-SDR Blog MCX Pigtail Antenna Adapter Set

Includes 1x MCX Pigtail adapter set (7 adapters)

Great for if you have the older or other brand dongles that used the MCX antenna connector. Contains 6 MCX to female (Type N, UHF, BNC, PAL, Type F, SMA) adapters and one bonus MCX to SMA male adapter which is often used to connect to devices like upconverters.

Amazon USA – Not in stock. Stock delayed by UPS.
Chinese warehouse in stock.

 
The Hobbyist's Guide to the RTL-SDR: Really Cheap Software Defined Radio (Book)
The Hobbyist’s Guide to the RTL-SDR: Really Cheap Software Defined Radio (Book)

A comprehensive guide to the RTL2832U RTL-SDR software defined radio by the authors of the RTL-SDR Blog. The RTL-SDR is a super cheap software defined radio based on DVB-T TV dongles that can be found for under $20.

This book is about tips and tutorials that show you how to get the most out of your RTL-SDR dongle.

 

If for some reason you feel like you don’t trust us then please see our Amazon reviews from our previous RTL-SDR model product sales and our Amazon store seller feedback.

Shipping Information (Click to Expand)

USA

For US customers we highly recommend purchasing our products from Amazon. Amazon will provide you with fast local shipping and shipping is free for orders over $35. If you are a Prime subscriber you also get free 2 day shipping.

US customers may also purchase from our international checkout and choose free shipping from China.

International (All countries outside the USA)

International orders bought on our blogs cart will have their orders shipped from our warehouse in China. Shipping is free and we will use the fastest air mail option available to us (ePacket or similar if available for your country). This should get your item to your door within 2 weeks (possibly longer during peak periods). Please note that this time is highly dependant on the efficiency of the customs agency within your country, and please understand that this processing time is totally out of our hands. Countries such as Italy, Canada, Brazil, Russia and middle eastern countries are known to have extremely slow customs agencies. If you need faster shipping please select an express option. International buyers are reminded that as with any international parcel you are fully responsible for any duties or customs clearance fees required by your country, and that you take full responsibility for the legality of importing. Please watch the tracking information and contact your postal agency if there are any significant delays. If your parcel does not arrive within 4 weeks (6 weeks during December/Christmas period) please contact us at rtlsdrblog@gmail.com and we will open a postal investigation. 

Express air courier shipping is also available but this costs more. With this option we will use either DHL, UPS, or EMS air couriers. Depending on your country your package should arrive within 2-8 business days with express shipping. If you wish to use this option then please select your country from the shipping options in the cart. Note that most express couriers will not deliver to a PO box.

Please note that Hong Kong is excluded from free shipping, please select an express option.

Note that if you order over $55 USD worth of items, we may upgrade your item to express shipping for free, depending on the country you live in.

Shipping status meanings:

‘In process’ means that your order and address information has been checked and sent to the warehouse and the parcel is being packed. A tracking number will follow usually by the next business day.

How do I track my shipment?

Please note that tracking updates may initially take a few days to show up. 

If sent via registered air, then mail will usually be sent either by postal services: China Post EMS Air Mail, Deutsche Post, Hong Kong Post or Swiss Post. You can initially track the parcel on their respective websites. However, once the parcel enters your own country tracking on these sites will stop as the parcel is handed over to the local post office, who will usually attach their own tracking sticker. You can then track your parcel on your local post office website. In some countries you may need to call your post office to get an updated tracking number.

Warranty Information (Click to Expand)

We will provide 6 months warranty on manufacturing defects. Please note that if you try the direct sampling or bias tee mods then any warranty will be voided, so please ensure your dongle is working before trying these.

If you suspect a manufacturing fault please contact us through Amazon if you bought there, or email us at rtlsdrblog@gmail.com if you bought from our cart and include your order number and name. Please include details of the fault and a picture of the fault if it is physical damage. If the unit is faulty we will issue either a full refund or send a new unit out depending on your preference.

Wholesale Information (Click to Expand)

If you want to buy 10+ units please contact us directly at rtlsdrblog@gmail.com for a wholesale quote.

 

Recommended products from other sellers

R820T/R820T2 RTL-SDR

Another reputable place to buy a R820T2 RTL-SDR dongle is at the Nooelec Store. Nooelec dongles have an ESD protection diode, improved components and good phone and email support.

The older R820T’s are also still for sale by Nooelec at a lower price as well.

There is also the Nano R820T package. These have similar price and performance to the standard sized package shown above. The Nooelec branded nano models come with improved crystal oscillators and capacitors compared to generic brands. The improvements help to increase frequency stability and lower the noise floor.

nooelec_nanoClick here to buy a Nooelec ‘Nano’ dongle (Ebay)

Also, take note of the uncommon Micro Coax (MCX) plug on these dongles. Check out the most commonly used MCX adapters below.

MCX Adapters

Most R820T/2 RTL-SDRs use an MCX antenna connection. To connect to antennas with different connectors you can use an adapter. MCX adapters are fairly cheap and most can be found on Amazon for under $10.

Below are some individual adapters for sale, but please note that our sets linked above work out much cheaper than buying several individually.

smaFemaleMCX->SMA Female smaMaleMCX->SMA Male
BNCFemaleMCX->BNC Female BNCMaleMCX->BNC Male
UHFAdapterMCX->UHF(SO239) Female FAdapterMCX->F Female
NFemaleMCX->N Female NAdapterMCX-> N Male
PALAdapterMCX->PAL Female  

E4000 RTL-SDR

The E4000 is more expensive as it has become rare since it has gone out of production. It has a frequency range of 52 – 2200 MHz with a gap from 1100 MHz to 1250 MHz.

The E4000 RTL-SDR dongle can still be bought from Nooelec on Amazon as well. Due to its rareness, the cost of the E4000 is slowly rising. These dongles used to sell for $20, but are now going for around $50-$100! Best to get them now if you need them before they sell out completely. Though note that for most cases an R820T2 unit is usually better.

Terratec E4000 DongleClick here to buy a E4000 dongle (Ebay)

Modded RTL-SDRs

Nooelec sell custom made TCXO RTL-SDRs. Unlike standard RTL-SDRs, TCXO RTL-SDR’s will not experience any frequency drift, and will have a very small PPM offset of around 0 – 2. These units also come with an aluminium casing included.

Nooelec TCXO RTL-SDR DongleClick here to buy a Nooelec TCXO dongle (Ebay)

Ham-it-up Upconverter

Nooelec also sell the Ham-It-Up Upconverter. The ham-it-up is a quality upconverter that allows the RTL-SDR to receive HF (0 – 30 MHz) signals. It also works with other SDR’s such as the HackRF. The Ham-It-Up uses SMA Female connectors, so you will need an MCX->SMA Male adapter to connect it to the dongle.

Click here to buy a Ham-It-Up Upconverter (Ebay)

To go with the ham-it-up Nooelec sell a metal enclosure. The enclosure can fit both the ham-it-up and an RTL-SDR dongle in it and will help reduce radio interference.

hamitup_enclosureClick here to buy a Ham-It-Up Metal Enclosure (Ebay)

Antennas

The optimal antenna to use is highly dependent on the frequency you want to listen to. However, for general purpose scanning across all frequencies, we recommend using a Discone or Scantenna.

The Scantenna is a general purpose antenna with a frequency range of 30-1300Mhz and excellent reviews on Amazon. Most people find that the Scantenna outperforms a Discone in many situations. Scantenna’s go for around $50, but they are now getting difficult to find.

scantennaClick here to buy a Scantenna

The Discone is the ‘classic’ RTL-SDR antenna as it covers a wide range of frequencies like the Scantenna. A decent Discone can go for as little as $50.

disconeClick here to buy a Discone

RF Filters

Filters connect between your antenna and RTL-SDR dongle. They help to significantly reduce out of band interference and noise which is very helpful when trying to improve signal strength.

If you have strong FM band interference a good FM trap band stop filter such as this MCM one can help reduce this interference. These can be bought for under $1 USD.

Fm_trapClick here to buy an FM Trap

If you are monitoring the air band for air traffic or ACARS you can buy 118 – 138 MHz bandpass filters.

Click here to buy an air band band pass filter

We also highly recommend the ADS-B HABAmp. This is a filter + LNA combination that works very well and will significantly improve ADS-B performance.

Click here to buy an ADS-B HABAmp LNA + Filter

Adam (9A4QV) also sells some good low cost filters for ADSB, Hydrogen Line Radio Astronomy or FLARM.

Click here to buy Adam’s ADS-B/H-Line/FLARM Filters

Other RTL-SDR Related Purchases

Nooelec also sell handy aluminum cases for MCX RTL-SDR dongles which help with shielding from local interference.

Aluminum CaseClick here to buy an aluminum RTL-SDR case

You may also want to get an active USB extension cable so that you can put the RTL-SDR dongle as close to the antenna as possible to reduce coaxial feed line losses and decrease RF interference from your PC.

ActiveUSBClick here to buy an active USB Extension Cable

A Raspberry Pi is a credit card sized computer that runs Linux. With it you can connect an RTL-SDR, run a server, and then remotely send a signal or processed data such as ADS-B aircraft locations back via WiFi or Ethernet cable.

raspberrypi Click here to buy a Raspberry Pi

A USB on-the-go (OTG) cable is required to use the RTL-SDR on Android phones with software like SDR Touch and Wavesink. We recommend cables that come with power plugs as well.

usbotgClick here to buy a USB OTG Cable

If you have long runs of coaxial cable, a low noise amplifier (LNA) may aid in helping to ‘push’ weak signals through. We recommend the LNA4ALL LNA.

LNA4AllClick here to buy an LNA4ALL

Noise can appear on the USB cable which can show up in the RF spectrum quite easily. To stop this noise use clip on ferrite cables on the USB cable.

ferrite_clip_onClick here to buy clip on ferrite cores

If you are using a long wire or random wire antenna with a HF modded RTL-SDR or an upconverter you should use a 9:1 impedance transformer to get good SWR.

9:1 Impedance TransformerClick here to buy a 9:1 impedance transformer

9:1 Impedance TransformerClick here to buy a Nooelec 9:1 impedance transformer