Also known as "FM Trap". Below we show a screenshot of SDR-Console V3 Beta 1 receiving from a remote SDRplay RSP1A with multiple IF channels selected and with matrix view active on a second screen.   We've tested these ourselves with the activatable bias tee in our units and found them to definitely work very well. Ships via Othernet in the USA. RF filters connect between your antenna and RTL-SDR dongle. Amazon USA local OUT OF STOCK. Thank you – that information was very helpful! Please enter your address using English characters only! Please note that if you do any modifications to the PCB (e.g. Note that you may need to cut down the case length to customize the size depending on what you're putting in it. For librtlsdr there is usually the -T option, e.g. The HackRF One is a relatively low cost TX/RX capable SDR. See our review post for more information. There are also several other alternatives available on eBay that use a larger iron core. We can provide bulk rates for order of over 10 units. There is NO Release page at the linked github repository. Mid-Autumn Festival: Oct 1 - 8 will be a public holiday in China, so orders made from our Worldwide store during Sept 30 - Oct 8 will be packed and shipped on/after Oct 9. Coax cable is lossy and the longer it is the more your received signal is attenuated. We also highly recommend the ADS-B HABAmp for receiving ADS-B signals. There are also several other alternatives available on eBay that use a larger iron core. Make sure all SDR software like SDR#/HDSDR/SDR-Console etc is fully closed. Currently we recommend LNA's based on the SPF5189Z chip as they have wideband good performance, and are cheaply produced. Express Mail: Shipped with DHL/UPS/EMS/Aramex/Fedex. Your purchase helps fund development of open source software that takes advantage of coherent RTL-SDR receivers! If you have multiple dongles connected you'll need to edit the batch file to specify what dongle's bias tee you want to activate. Set of six straight adapters with. An alternative to the SpyVerter is the upconverter designed by SV1AFN. Direct We will provide a two year warranty on any manufacturing defects. 118 - 138 MHz Air Band Bandpass Filter   Of course remember that if you are interested in VLF/LF, it might be a better idea to use an upconverter like the SpyVerter, which can be powered by the bias tee on the dongle. A few people have been asking for a RTL-SDR.com V3 data/info sheet, so we have written one up here (PDF). A wideband noise source can be used together with an RTL-SDR dongle to perform measurements on filters and to measure the SWR of an antenna. This makes them ideal for the RTL-SDR as using a Discone will allow you to receive at almost any frequency with decent performance. International (All countries outside the USA except sanctioned countries like Iran and NK). Chinese worldwide warehouse in stock. Sounds like you have noise pickup from the computer. Includes 1x RTL-SDR Blog brand R820T2 RTL2832U 1PPM TCXO SMA V3 Dongle, 1x Dipole Antenna Base with 60cm RG174, 2x 23cm to 1m telescopic antenna, 2x 5cm to 13cm telescopic antenna, 1x 3 meter RG174 extension cable, 1x Flexible Tripod Mount, 1x Suction Cup Mount. We think the Airspy is the SDR with the best RX capabilities in the mid priced SDR market right now. Express air courier shipping is also available but this costs much more and we only recommend this for larger shipments, or for countries that don't support priority air mail. The dongles with blue or green cases or square rectangular silver cases with four screws, or those advertised as "Pro" are not ours. Chinese worldwide in stock. Unfortunately most don't provide a bias tee option like the LNA4ALL or HABamp does. If you have one of these, feel free to contact us at [email protected] for a replacement, or if the bias tee is not important to you and you can solder, removing the L13 inductor will fully disable the bias tee. A 1090 MHz ADS-B antenna from FlightAware. Ideally you want to get the RTL-SDR dongle as close to the antenna as possible.   There is also a metal case available on Amazon and eBay. Comes with easy to use mounting solutions and extension coax, and is enclosed in a fully weather proof plastic cover. For everything else such as lost postal items, warranty claims and support inquiries that aren’t covered by the quickstart or troubleshooting guide then please contact us at admin@rtl-sdr.com. See the product release page, for more information and tests. I have a problem i direct sampling mode. The purpose of the thermal pad is to fix L-band VCO lock problem that are related to PCB heat build up. For me it works OK on Fedora and its distro packages.     If you have long runs of coax cable then a low noise amplifier (LNA) can help to significantly improve your reception. However, all the products listed are what we actually do recommend regardless. The same problem affects all brands of RTL-SDR.   The lowest frequency an RTL-SDR can comfortably tune to is about 24 MHz. Apple Pay is also supported via Stripe. You’ll find they are trying to control device 0 (parameter -d 0). If you need technical support please first ensure that you have been through our Quickstart guide and troubleshooting section further down on it, as well as our V3 users guide. But the vhf and higher frequencies tend not to pick this up very well as the harmonics are much lower in frequency.   Please enter your address using English characters only! SDR-Console and the server currently support multiple SDR hardware including the RTL-SDR. Please do not use outside during poor weather conditions. Airspy We can provide bulk rates for order of over 10 units. Produced by FlightAware.com for their aircraft tracking service and resold by us at RTL-SDR Blog with free shipping for international customers. Please see the product release post for more information, or the description on the Airspy website. Direct A Raspberry Pi is a credit card sized computer that runs Linux, or even Windows. This ensures better performance. Wholesale Information (Click to Expand) Tweet14Share1KReddit53VoteEmail1K Shares. I can turn on bias_T with ./rtl_bias -b 1 and measure 5V at the antenna terminal. How are you powering the upconverter? An upconverter allows you to use your RTL-SDR on HF frequencies which are between 0 - 30 MHz.   But for radios without super low MDS specs, the signals can be boosted on by using any external low cost HF amplifier, or even our wideband LNA. Other Accessories AmazoneBay  As this item is large it has it's own shipping costs ($10 for most countries) that will automatically be added upon checkout depending on your country. With the above performance and features, the included metal case and adapters and at a similar or even lower price compared to other upconverters we think this one is the best value. It is probably the most versatile SDR that exists at the moment, but in a compromise it does not have the best quality RX or TX performance. The rtl_eeprom command is "rtl_eeprom -b y". Also I notice CubicSDR doesn’t see the rtl-sdr V3 at all. If you are using our RTL-SDR-Blog driver branch you can force the bias tee to be always on by setting a flag in the EEPROM. Recently SDR-Console V3 left its 'preview' software status and moved into 'beta' production status. Designed to be used with bias tee power from our RTL-SDR Blog V3 dongles with the LNA mounted as close to the antenna as possible. Remember that not all LNA's can accept bias tee power. Includes 1x RTL-SDR Blog brand R820T2 RTL2832U 1PPM TCXO SMA V3 Dongle. Instructions are vague and misleading. See our review post for more information. With the above performance and features, the included metal case and adapters and at a similar or even lower price compared to other upconverters we think this one is the best value. The code execution cannot proceed because MSVCR100.dll was not found. This feature allows you to listen to HF signals between about 500 kHz to 28.8 MHz. A USB on-the-go (OTG) cable is required to use the RTL-SDR on Android phones with software like SDR Touch and Wavesink. For US customers we highly recommend purchasing our products from Amazon. External bias tees are available cheaply on most marketplaces. Noise and interference can sometimes be induced in the USB cable itself which can show up in the RF spectrum. Please remember that these units do get hot to the touch especially when used in warm climates. It did for me. i am using a V3 RTL-SDR (i have a couple), along with Gqrx 2.11.5 under OS X 10.14.6 … the ‘direct_samp=2’ option simply doesn’t work… crashes… Gqrx defaults to ‘other’ – no reception, etc…. 0.2 - 0.3% of units may have a faulty RTL2832U chip. Discones are wideband antennas. Another recommended option is the Ham-It-Up Upconverter. Direct Currently we recommend the SpyVerter as the upconverter of choice. This one like the SV1AFN is also based on the ADE-1 mixer, but uses 125 MHz oscillator and is based on an open source design. LNA4ALL Great for beginners as it allows for terrestrial and satellite reception. Includes 1x KerberosSDR with Calibration Board built in. Chinese worldwide warehouse in stock. International (All countries outside the USA except sanctioned countries like Iran and NK)   However, all the products listed are what we actually do recommend regardless. The RTL-SDR can be used as a wide band radio scanner. Note that the legacy DVB-T TV drivers will activate the bias tee by default. If you suspect a manufacturing fault please first ensure that you have been through our Quickstart guide and troubleshooting section further down on it, as well as our V3 users guide.   By adding an LNA near the antenna this loss can be reduced. If you have long runs of coax cable then a low noise amplifier (LNA) can help to significantly improve your reception. Many users have reported significantly improved reception when they started using this filter.   SDRplay RSP LNA4ALL Shipping is free. Sorry there are political issues with shipping to India from China at the moment.   See our tutorial here for more information. AmazoneBay  Amazon will provide you with fast local shipping and shipping is free for orders over $35. Express air courier shipping is also available but this costs much more and we only recommend this for larger shipments, or for countries that don't support priority air mail. 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. With this option we will use either DHL, UPS, EMS or Aramex air couriers. These cores help to suppress unwanted currents in the USB shield. A 1090 MHz ADS-B antenna from FlightAware. If you want to buy 10+ units please contact us directly at admin@rtl-sdr.com for a wholesale quote.   AmazoneBay  Normal USB cables have a length limit of about 5m before they stop working, but with an active USB cable this can be extended up to 10 to 15 meters. But I have to say it’s a bit…, GOES 16/17 and GK-2A Weather Satellite Tutorial, Decoding 433 MHz ISM Band Weather Stations, QRP (FT8, JT9, WSPR etc) Monitoring Station, Performing Replay Attacks with RTL-SDR and RpiTX, SignalsEverywhere Direction Finding Tutorial, Measuring Traffic Volumes with Passive Radar, Manual gain controls and decimation driver, ExtIO with Decimation & Tuner Bandwidth Controls, http://www.techlib.com/electronics/antennas.html, Bullseye TCXO LNB for QO-100 33% Off Sale Ending Soon, Microwave Humidity Sounder Decoder for the NOAA-19 Satellite Released, Sanchez Updates: Combine Weather Images from GK-2A, Himawari-8, GOES 16/17 Satellites into one Composite Image, Comparing the KiwiSDR Against the RaspberrySDR Clone, TechMinds: The Langstone Project – SDR Transceiver with PlutoSDR, New Linux RTL-SDR Driver with Fully Exposed Controls, The BIG List of RTL-SDR Supported Software, Simple NOAA/Meteor Weather Satellite Antenna: A 137 MHz V-Dipole, RTL-SDR Tutorial: GPS Decoding and Plotting, Automatic dependent surveillance broadcast, RTL-SDR Discussion • Re: ExtIO_RTLSDR_u8.dll with HDSDR 2.76 + dongle, Other SDR Devices • Trouble connecting the v3 dongle. RG6 is low loss cable and it is also very cheap because it is used commercially with satellite TV installations. eBay  If it is a request for tracking details please first check your old/deleted/spam mails for the tracking email which is provided by PayPal. AmazoneBay  Another good mid range SDR is the SDRplay RSP. This one like the SV1AFN is also based on the ADE-1 mixer, but uses 125 MHz oscillator and is based on an open source design. Note that the mismatch between 50 and 75 Ohm impedances is completely negligible for RX applications. With the above performance and features, the included metal case and adapters and at a similar or even lower price compared to other upconverters we think this one is the best value. 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. See our review post for more information. A 1090 MHz ADS-B antenna from FlightAware. This SDR is great value for the price and can receive HF frequencies without an upconverter, but it not as good as the Airspy when running in tough RF environments with many strong signals.   Version 3 of our customized RTL-SDR dongles brought out some new interesting features. If needed select a particular RTL-SDR device with the -d flag. If you get a Smart Screen message, click on More Info, and then on Run Anyway.       To go back to listening to frequencies above 28.8 MHz remember to change the sampling mode back to "Quadrature Sampling". This is a high pass filter and not a notch, so VLF will not work.   Other LNA's See our tutorial here for more information. (except mainland China customers please use Chinese characters). Please see this link for instructions, or see below to see how to force the bias tee to be always on. Shipping status meanings: The lowest frequency an RTL-SDR can comfortably tune to is about 24 MHz. Amazon Normal USB cables have a length limit of about 5m before they stop working, but with an active USB cable this can be extended up to 10 to 15 meters. blogged about support for their line of RSP products too, post the swling.com blog did on the beta release, RTL-SDR Blog V3 Units back in stock at Amazon, A Datasheet for our RTL-SDR.com V3 Dongles, Bullseye TCXO LNB for QO-100 33% Off Sale Ending Soon, Microwave Humidity Sounder Decoder for the NOAA-19 Satellite Released, Sanchez Updates: Combine Weather Images from GK-2A, Himawari-8, GOES 16/17 Satellites into one Composite Image, Comparing the KiwiSDR Against the RaspberrySDR Clone, TechMinds: The Langstone Project – SDR Transceiver with PlutoSDR, New Linux RTL-SDR Driver with Fully Exposed Controls, The BIG List of RTL-SDR Supported Software, Simple NOAA/Meteor Weather Satellite Antenna: A 137 MHz V-Dipole, RTL-SDR Tutorial: GPS Decoding and Plotting, Automatic dependent surveillance broadcast, RTL-SDR Discussion • Re: ExtIO_RTLSDR_u8.dll with HDSDR 2.76 + dongle, Other SDR Devices • Trouble connecting the v3 dongle. Unfortunately most don't provide a bias tee option like the LNA4ALL or HABamp does. of our dongles included a bias tee which could manually be enabled by opening the case and soldering two pads on the PCB together. Contains seven band pass filters that range from 1.6 - 2.5 MHz, 2.5 - 4.7 MHz, 4.7 - 7.5 MHz, 7.5 - 14.5 MHz, 14.5 - 21.5 MHz, 21.5 - 33 MHz and 33 - 56 MHz.   Direct Known V3 Batch 1 Issues (limited quantity batch, no longer shipping): Hello. I would suggest trying coax running outside to the antenna sma connector.   eBay  If you want to receive everything then get a wide band antenna. A tracking number will follow usually by the next 1-2 business days. The best value RTL-SDR on the market! Another recommended option is the Ham-It-Up Upconverter. Press Play and tune to 500 kHz - 28.8 MHz. There are 10 $ RTL-SDR if we want to hear FM radio. However, once the parcel enters your own country tracking on these sites may stop when the parcel is handed over to the local post office, who will usually attach their own tracking sticker. This is probably the best filter to get if you are interested in ADS-B. Open the bat file with any text editor, like Notepad, and add the dongle selector "-d" flag. I changed the SDR sharp settings to Quadrature for use with the upconverter. To check which element is connected to the center coax you can open the lid on the black dipole base. Blocks the broadcast FM band between 88 - 108 MHz with over 50dB of attenuation. This is for advanced users who need to daisy chain clocks together for coherent experiments, or need to access other ports.     Is weather proofed and has 5 dB of gain. I am powering the upconverter with a USB cable hooked up to my computer. Recently SDR-Console V3 left its 'preview' software status and moved into 'beta' production status. We currently support PayPal, Credit Cards and digital currencies such as Bitcoin, Bitcoin Cash and Litecoin. Is weather proofed and has 5 dB of gain. Amazon USA local in stock (Sold by FlightAware). This site uses Akismet to reduce spam.   Hi Murray, I assume you’re the same one who emailed the same message? I’m running Gqrx 2.11.5 right now with OSX 10.14.6, although using an old non-TCXO Nooelec R820T while I wait for a RTL-SDR v3 to arrive. RTL-SDR (RTL2832U) and software defined radio news and projects. : This is characterized by higher than normal USB currents (normal is 0.28A - 0.3A), and often random disconnections from the USB as well as increased heat. Clip on USB Ferrite Core If you have a general question about RTL-SDRs or SDRs we ask you to please ask in our forums. Shipping Information / Policy (Click to Expand) It also works to some extent with the RTL-SDR V3 in direct sampling mode if you enable RTL AGC. We have tested the LNA4ALL in bias tee mode with the activatable bias tee in our units and found it to work well.   Look at the .bat files. Product Support (Click to Expand) This book is about tips and tutorials that show you how to get the most out of your RTL-SDR dongle. See our tutorial here for more information. Active USB Extension Cable However, once the parcel enters your own country tracking on these sites may stop when the parcel is handed over to the local post office, who will usually attach their own tracking sticker. Includes 1x RadarBox ADS-B 1090 MHz SMA Outdoor Antenna with 10m of coax, 1x RadarBox ADS-B Optimized 1090 MHz RTL-SDR, 1x Antenna Mounting Brackets. Alternatively, simply disconnect and then reconnect the SDR to turn the bias tee off. I am using…, I have this working a Windows 10 machine and it’s really awesome! RF Filters See our review post for a comprehensive comparison between the Airspy, SDRplay RSP and HackRF. Unfortunately most don't provide a bias tee option like the LNA4ALL or HABamp does. That dongle also works using CocoaRTLServer and SdrDx. Currently we recommend LNA's based on the SPF5189Z chip as they have wideband good performance, and are cheaply produced. Amazon USA local in stock. The Airspy is an excellent upgrade from an RTL-SDR dongle. This product is EOL and will not be restocked. See our review post for more information. Try that. Even a VSAT LNBF costing hundreds of dollars more is no match for the performance of the Bullseye 10K LNB. If they confirm it as lost or not received after a long time then please let us know and we can open an investigation on this side as well. Thus it is perfect for experiments like reverse engineering and testing RF devices, but it is not intended to be used as a commercial radio or ham radio. It is designed for radio experimenters and it has a very wide band frequency range from 1 MHz to 6 GHz, and a wide bandwidth of up to 20 MHz and an 8-Bit ADC. This is probably the best filter to get if you are interested in ADS-B. See our review post for a comprehensive comparison between the Airspy, SDRplay RSP and HackRF. Works fine with my Windows 10 PC. Comes with the high quality SS405 cables that are needed to avoid phase distortion on a VNA. RTL-SDR (RTL2832U) and software defined radio news and projects. We will normally only do this for larger orders. We aim to always reply within 1-2 business days. Our eBay account name is "rtl-sdr-blog", and on AliExpress it is "RTLSDRBlog Store" NO:4523039. Using an RTL-SDR can increase CPU usage which can quickly drain a mobiles battery. 11.5 - 14V enables vertical polarization and 16 - 19V enables horizontal polarization.   AmazoneBay  Receives a 15% discount if you order 4 sets. Used to tune antennas, filters and measure cable loss amongst other applications. To stop this noise use clip on ferrite cores on the USB cable. An alternative to the SpyVerter is the upconverter designed by SV1AFN. If you have long runs of coax cable then a low noise amplifier (LNA) can help to significantly improve your reception. If you cannot fix these problems with Windows or your antivirus, run the command manually on the CMD line. Batch 2 Available. If you have long runs of coax cable then a low noise amplifier (LNA) can help to significantly improve your reception. You can also subscribe without commenting. If you want to buy 10+ units please contact us directly at admin@rtl-sdr.com for a wholesale quote.   However, all the products listed are what we actually do recommend regardless. An alternative to the SpyVerter is the upconverter designed by SV1AFN.   Warranty Information (Click to Expand)   Ideally you want to get the RTL-SDR dongle as close to the antenna as possible.   The Bullseye LNB comes with a highly stable TCXO which has less than 10 kHz offset even in outdoor conditions. We recommend using RG6 coaxial cable for most links between your antenna and RTL-SDR. If the unit is faulty we will issue either a full refund or send a new unit out depending on your preference. Please note that we have an approximate 1-2 day working day processing time before international parcels get shipped (even express orders).     If you've been through the troubleshooting guide and still suspect a fault please contact us through Amazon if you bought there, or email us at admin@rtl-sdr.com if you bought from our cart. Although the bias tee circuit is dual protected against accidental shorts with a thermal self-resetting fuse and overcurrent protection on the LDO, short circuiting the bias tee for an extended period of time (days) could damage the LDO or fuse permanently. For whatever reason, my RTL-SDR installed as device 1, so try change -d 0 to -d 1 or higher. Antennas Cette clé USB est la version optimisée V3 de RTL-SDR.com, avec le tuner R820T2 pour la réception de 24 à 1766 MHz. ” so if your using Q sampling then it is broken Quadrature is for 30MHz and up Direct Sampling (Q Branch) is for 30MHZ down to 500Hz. See our review post for more information. We cannot provide support for counterfeits and these do not help support the running of the blog and the design of new products. And note that an outdoor antenna could be picking up a lot of noise from all kinds of sources like power grid, motors, welders, tv’s and any other electrical noise source.   Recommended alternative SDRs Thanks for your patience. Multi HF Bandpass Filter (Required).   A Raspberry Pi is a credit card sized computer that runs Linux, or even Windows. We can provide bulk rates for order of over 10 units. Direct AmazoneBay  Clip on USB Ferrite Core An upconverter allows you to use your RTL-SDR on HF frequencies which are between 0 - 30 MHz. normal antenna connector is not used. Common questions like how to use the HF mode are explained on the V3 users guide. See our review post for more information. I’d suggest contacting the seller as that…, You can buy them at home depot, they are really called screw terminals.   Please see the guide written by Rodrigo Freire here. Chinese worldwide warehouse in stock. It really shines when used in tough RF environments, such as those found in city and suburban areas. RG6 Coaxial Cable We will normally only do this for larger orders. Active USB Extension Cable Unofficial brands come with much cheaper cables. Upconverters All shipping status updates will come through an email from PayPal. 118 - 138 MHz Air Band Bandpass Filter RTL-SDR (RTL2832U) and software defined radio news and projects.   The Airspy is an excellent upgrade from an RTL-SDR dongle. We will provide a two year warranty on any manufacturing defects.   tks for replying! Save my name, email, and website in this browser for the next time I comment. Countries such as South Africa, Italy, Canada, Brazil, and middle eastern countries are known to sometimes have extremely slow postal and customs agencies. Note that the mismatch between 50 and 75 Ohm impedances is completely negligible for RX applications. Airspy I found that the V3 received HF signals very well on its own using direct sampling Q branch. Please note that tracking updates may initially take a few days to start working after receiving the shipped status. We have tested the LNA4ALL in bias tee mode with the activatable bias tee in our units and found it to work well. See our review post for more information. Be sure to include your order number and name.   In fact the V3 PCB has already been redesigned to dissipate heat better, so the thermal pad is not strictly required, except in very warm climates. By leveraging your computer’s CPU power, the RTL-SDR opens up a limitless trove of possibilities for RF exploration. Amazon USA local in stock (Sold by FlightAware). eBay  FlightAware ADS-B Antenna   There is no one size fits all antenna, every different design will have a trade off. The RTL-SDR V3 provides 4.5v so is suitable. Please guide me regarding this. Direct   With or without antenna connected. SDRplay RSP Thanks yarda. Thanks for your patience. It really shines when used in tough RF environments, such as those found in city and suburban areas. Depending on the particular model it could receive frequencies from 500 kHz up to 1.75 GHz. More info on how to blacklist on the Linux section on the quickstart guide. It is designed for radio experimenters and it has a very wide band frequency range from 1 MHz to 6 GHz, and a wide bandwidth of up to 20 MHz and an 8-Bit ADC. SV1AFN Upconverter We recommend using RG6 coaxial cable for most links between your antenna and RTL-SDR. To turn it off repeat steps 2 & 3, but instead run the biastee_off.bat batch file. We've tested these ourselves with the activatable bias tee in our units and found them to definitely work very well. It is greyed out. Be sure to include your order number and name. Here is a picture of how it mounts onto a pole. Save my name, email, and website in this browser for the next time I comment. Note that depending on the weight, cost and destination country of your order we may upgrade your shipment to a faster shipping method for free. RG6 Coaxial Cable Amazon On marketplace sites like eBay/Aliexpress etc scammers may be falsely selling their own dongles under our brand names. Requires the SpyVerter upconverter add on to receive HF signals. We were able to acquire a large amount of this product at good prices and are passing on the savings. eBay  I have a problem with my V.3 with the latest software sdr # (17.38) after a few minutes it crashes. If you want to receive everything then get a wide band antenna. If you've been through the troubleshooting guide and still suspect a fault please contact us through Amazon if you bought there, or email us at admin@rtl-sdr.com if you bought from our cart. Tweet14Share1KReddit53VoteEmail1K Shares. This makes them ideal for the RTL-SDR as using a Discone will allow you to receive at almost any frequency with decent performance. For US customers we highly recommend purchasing our products from Amazon.   However, all the products listed are what we actually do recommend regardless.   You had this ” I have a problem i direct sampling mode. RG6 is low loss cable and it is also very cheap because it is used commercially with satellite TV installations. it ain’t gonna work – used to in earlier versions of Gqrx and then i made the mistake of upgrading OSX and the app – now it won’t work no matter what…. FlightAware ADS-B Filter   ANTISPAM: What does the 'F' in FM radio stand for? The LNA4ALL is a very affordable wide band low noise amplifier that is very commonly used with the RTL-SDR. It can be used to box home made filters or LNAs, the LNA4ALL, or a FlightAware dongle. This product is great for if you are using an upconverter together with your RTL-SDR, or other SDR. This SDR is great value for the price and can receive HF frequencies without an upconverter, but it not as good as the Airspy when running in tough RF environments with many strong signals. We also highly recommend the ADS-B HABAmp for receiving ADS-B signals. You can initially track the parcel on their respective websites, or on a universal tracking website like 17track.net. This results in making the metal case hotter, but it keeps the chips much cooler, resulting in better performance. Click here to visit our store for the links. To add a jumper to the CLK selector header. They work by shifting frequencies between 0 - 30 MHz "up" by a fixed amount into a frequency range that is receivable by the RTL-SDR. Direct The HackRF One is a relatively low cost TX/RX capable SDR. For instance, wide band antennas can receive more frequencies, but will have less gain at any one particular frequency. Please do not use outside during poor weather conditions.