Nooelec RTL-SDR v5 SDR - NESDR Smart HF/VHF/UHF (100kHz-1.75GHz) Software Defined Radio. Premium RTLSDR w/ 0.5PPM TCXO, SMA Input & Aluminum Enclosure. RTL2832U & R820T2 (R860)-Based Radio

This v5 RTL SDR works incredibly well with my Home Assistant environment for pulling in hyper local utility data. The initial setup process was straightforward, and the hardware offers seamless compatibility with third party software like rtlamr2mqtt to capture radio broadcast signals from local water and electric meters in real time. The tuning stability is rock solid, it handles heat much better than older models, and the network connectivity gives me a perfectly clean signal with excellent overall reception. While sound quality is not something I am actively testing for telemetry data, the raw RF signal performance is pristine. This is an essential piece of hardware that provides incredible value for money if you want to build custom utility dashboards in your smart home.

This is exactly as described. I have two of the common silver ones and one is off by 500 PPM, the other by a bit more than that. However, this NESDR is spot-on on the tuning, as promised, and the signal from it is clear and strong. Very pleased with the purchase. I have used it under Windows 10 (use the zadig.exe utility from SDRSharp to set the correct drivers) and I've used it on Raspbian Linux on a Raspberry Pi 3a+ to run trunk-recorder and liquidsoap streaming the local P25 trunked radio traffic to Broadcastify as a source. I can only get one dongle to work at a time on the Raspberry Pi before the USB bus is saturated (my assumption), but it locks up when I plug in a second silver website branded RTL-SDR along with this one (even after assigning unique serial numbers to each). Luckily everything fits within a 2.4 Mhz band, so I only need one, but I'm limited to three simultaneous recordings, when there are five data channels in my system. So I would like to run two dongles and separate the tasks, but that's not possible with my setup. I will try a Raspberry Pi 4, and maybe some other mini computer options in the future. But for now it's working. Well built, I haven't had any cooling issues, but I have a fan cooled case for the Rasberry Pi and set the dongle next to the case where there is airflow (it's on a short usb extension cord). I also have a cheap 800mhz SMA antenna, nothing fancy. It's 15 feet cord length and I placed it in the attic by drilling a hole in the ceiling. I get great reception and clear audio from the scanner.

I had a question about the driver installation and sent a support request and it was answered within minutes. Also the receive worked perfectly. Great value for the money.

The Nooelec RTL-SDR hardware works really well for RF monitoring and experimentation. I’ve bought three so far and they all work great. Very nice and premium-feeling aluminum outer case. Everything was nicely packaged. I’ve run these sticks on a Raspberry Pi for days at a time with no frequency drift. They all worked with zero or minimal ppm correction needed. If you want some RTL-SDR hardware this is a great option. It’s not perfect, though. While it is technically true that you can run two side by side on a Raspberry Pi, in practice I didn’t find this to be very practical. It will cover all four ports so forget about any other peripherals. When run in this configuration, the two SDRs will get really, really hot. With a little extra separation, they get warm but not hot. (I realize these are designed to run hot, but why do that if you don’t have to?) Even though you can run two side by side on a Pi, you’re better off using a USB hub instead in my opinion. The other problem I’ve found is something about the USB-A connectors doesn’t allow them to make a great connection with the host. I’ve tried multiple USB hubs, and of course connected directly to the Pi and in every case the dongles don’t feel like they are held solidly in place. They are quite loose and slightest bump will disconnect them or give a lousy connection to the host until they are wiggled around some to reseat them. This doesn’t appear to be a problem with the USB connector to the circuit board. It’s something with the connector design and how it mates with the ports — almost as if it’s slightly too long. If you plan on using these with a semi-permanent configuration, you should consider a bit of hot glue or epoxy to make sure they are held in place even if bumped around. I’ve had no problems with the SMA connectors and they feel solidly attached. So, in all it’s great hardware let down by a couple unfortunate but not insurmountable design decisions. As long as you keep these things in mind when you purchase, you’ll be fine.

1) To those who are plugging into your PC's you nuts... You goes near your antenna... 2)I love mine. I get everything with a discone antenna. 3)Do all those who say your HAMS and dont like it maybe its your or you dont know how to use a SDR or the software... It works with SDR#, SDR++, SDR Console. I get all the bands. I have not bought HF stuff yet but all the VHF/UHF bands I am picking up (Air, Rail, Marine, CTA, some police as most here are Encrypted, Fire, etc) Also it goes, Antenna -> Active USB -> SDR -> PC Your SDR does not plug into your PC Learn how to use it before you complain.

Solid performance SDR and compatible with most modern SDR software. It doesn't seem to get as warm as some other SDRs.

First off I have been a ham radio operator since the 80s and hold an extra class (top) rating. I was looking for a very portable scanner that I could take along on my travels to listen to airline frequencies (also a private pilot) that wouldn't take up a lot of space in my full under seat bag nor look suspicious while in the airport, as a standard scanner might. The good news is that it does work, the bad news is that there are some limitations. The idea of slapping a small antenna on it and plugging into a cell phone or tablet with an OTG adapter is not feasible. The main issue is that the SDR radio draws more power than the OTG via the usb port can deliver. Solution, purchase a powered USB cable. This allows you to plug one end into a charging battery, which I always travel with, which powers the radio and doesn't drain the phone or tablet. https://www.amazon.com/Degree-Angled-Female-Enhancer-Adapter/dp/B071X8BCFH/ref=sr_1_3?keywords=powered+usb+cable+otg&qid=1552141974&s=gateway&sr=8-3 Then you will need an extension USB cable to the phone or tablet so you can place the unit in suitable position, and any adapters to your particular phone, USB to C, etc. Easily done and not expensive. Then there is the antenna! The beauty of this Radio is that it is extremely wide band covering below commercial FM to 1.700 Ghz or more. This covers most of the commercial bands including Aircraft, first respondeners, most walkie talkie and even cell phones. Note that many systems on those bands are encrypted and not easily monitored. The beautiful thing about this SDR radio is the spectrum display, or "waterfall" which will show you a chunk of the band and all the active frequencies. You are able to simply slide your virtual vernier to a hot spot and monitor the frequency. In addition there is a running visual display of all the activity on that part of the spectrum so you can see frequencies with intermittent activity. You also can easily select all the common radio modulation schemes, like AM, FM, FM narrow, amateur radio SSB USB, LSB and CW, etc. Of course, you will need an antenna and unfortunately antennas are tuned to the frequencies you want to listen to. Very critical if you are transmitting, less so for receiving. For example, international ham radio frequencies have a wave length of around 65 feet (20 meters) the length of a full wave antenna. 1/4 wave antennas also work at approximately 16 feet. Not practical to carry around plus you will need an additional adapter (Ham it up) to receive the lower frequencies. On the other hand a 1700 MX signal close to the top end of LTE cellphone data as a full wave length of 6". For receiving a wide band scanner antenna is probably your best bet like: https://www.amazon.com/AEcreative-Wide-Band-Scanner-BCD396XT-BCD436HP/dp/B07HWLSNQP/ref=sr_1_8?crid=3RCJLW4EP4MW&keywords=wideband+scanner+antenna&qid=1552143429&s=electronics&sprefix=wide-band+scanner+antenna+%2Celectronics%2C205&sr=1-8 When looking for an antenna you will need an SMA female connector. Lastly, you will need software for your phone, tablet or computer. Some of it is open source and free (donation) and others have a demo version and a small fee ($5-10) for the Android / IOS versions. Try before you buy! All in all a great product with serious applications.

I wanted to love this thing and it does work good when it does but the issue is that falls short in too many places where it matters, for starters, no Bias-Tee circuit means you'll need to drag more cables with you to power any external LNAs/filters and if you can't use ports on your computer you'll likely end up having to use some sort of battery bank which bleeds electrical noise in the HF band, which has its own issues with this device. It can receive HF and LF quite well with Direct Q sampling however the USB connection with the smart actually ends up bleeding A LOT of electrical noise across the spectrum likely due to its poor USB plug, which is so insanely sensitive that I wouldn't be surprised if a minor gust of wind could disconnect it (see video). Also not to mention, this thing gets hot! HOT HOT!! Hot to the point I can't even hold it in my hands and I worry it'll burn out it's internal LNA some day. Got it to replace my old RTL-SDR V4, but it only solidified it's position, the SMArt is only really handy as a backup for me

Spełnia oczekiwania

HDSDR（ソフト）とともに問題なく動作しています。設定にちょっと時間がかかりました。 別途Ham it Up（アップコンバーター）も購入し 中波からUHFまで受信できるようにしました。

todo bien, muchas gracias

Rápido y fiable

Très bonne clé