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Say goodbye to blocked USB ports! The tiny NESDR Nano 3 is the ideal SDR for portable and embedded applications. Quad SDRs on a Raspberry Pi? USB OTG? Not a problem for the NESDR Nano 3! The Nano 3 is just 17mm x 8mm x 20mm weighs only 15g!
The Nano 3 is built into a high-quality brushed aluminum enclosure. In conjunction with the 2 internal silicone heat pads, this ensures that heat is removed from board-level and to the exterior where it belongs. The aluminum enclosure ensures that EMI is kept out out of the sensitive SDR circuitry, and emissions from the digital circuitry are contained within the SDR enclosure. The latter is especially important in EMI sensitive environments like automotive and flight applications!
An articulating, right-angle female SMA connector is included to allow you to attach both male SMA and male MCX antennas directly to your SDR.
The NESDR Nano 3 contains the same custom TCXO we include in our NESDR SMArt series. This 0.5PPM, ultra-low phase-noise TCXO is by far the highest performance TCXO available in ANY low-cost SDR.
We are so confident of the reliability and stability of this SDR that we offer a full 2-year warranty--the longest in the industry.
CAUTION: The enclosure will get hot! This is by design, and will not affect performance of the SDR. Please be cautious when touching the SDR after prolonged usage! A custom heatsink, which can optionally be affixed to either side of the SDR to further improve heat dissipation, is included with your purchase.
This RTL-SDR is based on the R820T2 tuner IC made by Rafael Micro, which means an approximate tuning range of 25MHz-1700MHz . There is also an RTL2832U IC on board to provide basic demodulation and USB interface functionality.
Full compatibility with a wide variety of popular SDR software packages, such as Matlab, CubicSDR, HDSDR, SDR Touch, Planeplotter for Windows, Mac, Linux, Android & Raspberry Pi.
Robert Parker
Reviewed in Canada on March 30, 2025
Works very well. For the software, I'm usingCubicSDR.Yes, it gets quite warm, but it does not seem to affect performance.
T. Tidemann
Reviewed in Canada on February 28, 2025
Works great - gets super hot, but doesn't seem to matter!
Capt-Dave
Reviewed in the United States on April 7, 2025
I would have given this five stars if it weren’t for the fact it runs very hot. I had to add a dongle to it so that it would not overheat my pie. This device preforms well, is very accurate and is very stable.
Poor Quality Control
Reviewed in the United States on August 20, 2024
Just received my unit and it looks like the USB connector is crooked, after close examination it is - and the aluminum housing appears to also be slightly warpedThis still does appear to function normally, but I was disappointed with the packaging l, delivery and overall quality control
Rob
Reviewed in the United States on July 30, 2024
I love the small package! I use an RTL SDR in the lab for signal analysis and test and measurement. An accurate clock is critical for this. In places where an OXCO is not needed, the 0.5PPM stability of the TCXO in the NESDR Nano 3 is perfect for my needs.The device is small and does get quite hot. Even with the temperature swings from cold to hot, the SDR remained well within it's 0.5ppm tolerance. The heat is not an issue for me -- the aluminum case seems to dissipate the heat generated. I trust Noelec to have designed it properly to deal with the heat. That said, I would avoid using this near low-temperature plastics like PLA.People should note that the 0.5ppm accuracy is over its working temperature range, not absolute. Some calibration may be required to get the most accuracy from each SDR.For my setup, I found a short MCX to SMA adapter cable to be preferrable to the supplied elbow adapter.
Jennifer Hahn
Reviewed in the United States on September 28, 2023
I am using 4 of these SDR's on a old computer running Linux and SDR Trunk. They all run 24/7/365 with no issues. I use a handful of NooElec products and never had an issue.
UN_NERV
Reviewed in Japan on March 11, 2023
他の方も書かれていますが、発熱が凄いです。持つことが出来ないくらいになるときがあります。放熱板も一つしかついてきません。
とっつぁん
Reviewed in Japan on April 8, 2023
ラズパイに接続してフィーダー用に使用。安定して使えてます。
Jeepin
Reviewed in the United States on April 17, 2023
I have a few of these now and will probably get more. I run them on Raspberry Pi systems for various purposes including ADSB tracking, APRS tracking, 433mhz decoding of weather and leak detectors, and scanner use. They work well, the main complaint is how hot they run even with the heatsink installed.
Steven C. Ollmann
Reviewed in the United States on May 18, 2020
My initial review I mentioned that it didn't seem as sensitive as my SDRplay RSPdx however this morning I plugged it into my laptop and was blown away. I used this with RTL1090 and Virtual Radar and I was tracking between 20 and 45 aircraft pretty much all day. Apparently there isn't much air traffic prior to this because of the quarantine/shelter in place orders. Now that things are relaxing, I'm seeing everything from small aircraft doing training exercises to large jets flying overhead. Great product for how I intended to use it! Now to go off and try it with the Amateur Radio digital signals! :) Enjoy!
Kb7sdm
Reviewed in the United States on March 20, 2019
I am impressed by the tiny size and performance of this. I like the fact they designed it with the raspberry pi usb port dimensions in mind such that they fit perfectly even with 4 installed (not sure if this would be possible due to power requirements however) i know 2 is possible though. The heat sink shows that you get 2, which would have been nice because these puppies get HOT when in use. I came up with a way to drain even more heat though by using a solid aluminum case by FLIRC and slipping a piece of thermal pad/tape in between the FLIRC case and the radio's aluminum case where they meet. It's designed with very close tolerances so this works very well almost meant to be! you get a little bit more heat dissipation that way. Just search for FLIRC raspberry pi case on amazon and you'll find it. Anyway, this is Nooelecs best sdr design so far, imho. Some people did mention that the screws holding on the case can become stripped and loose easily, i haven't experienced this but it makes sense considering how little surface area there was for cutting threads and how soft aluminum is, so be careful with that or add a drop or two of thread locker, or super glue if you want and it should be alright. Mcx to sma adapter included, the mcx to type N I have snapped in though fits snugly and there is no wiggle. This is reassuring compared to some previous models that were sometimes loose.
Joshua G
Reviewed in the United States on April 23, 2018
I’m a fan of NooElec’s products. I own two NESDR SMArt receivers and a Ham it Up 1.3 with a Balun One Nine on its input. The price-to-performance ratio on their SDR modules—built in the US and Canada, no less—is excellent, as is their customer service. Emailed support queries are answered promptly, sometimes within minutes, by knowledgeable and friendly staff. When I had questions regarding the resonsance point of the fixed whips included with the SMArt bundle (I don’t own a UHF antenna analyzer), I received an honest “I don’t know, but I’ve escalated your question to an engineer”, followed up with an answer. When I needed an end panel for the aluminum Ham it Up enclosure, tapped for the optional noise source jack, they shipped it out promptly at no cost. I could go on.I recently acquired a handheld QRP HF transceiver with an IF tap, and I immediately knew the Nano 3 would make the perfect panadapter interface for my Netbook. My first impression upon unpacking the Nano 3 was, “man, this thing is tiny”. An 90° MCX to SMA adapter and optional heat sink are included in a small antistatic bag. Without the heat sink, the Nano 3 is designed to fit 2x2 in a Raspberry Pi’s USB ports.I need some time to decide if I feel like installing the heat sink myself, but I expect tuning to remain within the TXCO’s 0.5ppm spec, same as the SMArt, at least until the device is used outdoors in the heat. Out of the box, tuning is indeed as stable as advertised; my unit needed no compensation within in SDR#.This is a very affordable, very cool device.
Customer
Reviewed in Canada on September 1, 2017
Hard to get to work on some devices
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