Am i reading correctly that this should not be used with ham it up as it will overheat?...trying to reduce the noise in my shortwave reception

I have been using a Nooelec NESDR SMArTee XTR SDR - Premium RTL-SDR w/ Extended Tuning Range, Aluminum Enclosure, Bias Tee, with the Ham It Up Plus with no problems. The Bias Tee, with it being enabled all time means that you cannot have an input which has a DC short circuit, such as a folded dipole, and this is a pain. I have also used the same one as in the query without issue, but am using that with Bias Tee powered 2m linear amplifier.

I bought the hamit up from you last week. the sdr part is getting red hot after 5mns. cannot use it because of heat.

It may be because you're using the SMArTee dongle and not the Nooelec NESDR SMArt . the smartee version supplies up to 200ma to power preamps..it cannot be switched off. If the HAMitup presents a loop i/p the smartee will try to give the full 200ma and get hot. Nooelec supply the Nooelec NESDR SMArt in their bundle with the hamitup. Check the i/p of the Hamitup with a meter , if it shows close to short cct thats the problem.

Are there any drawbacks to this smartee model compared to the basic smart? i have a smartee but want a second. wondering if any benefit to just smart?

No, the circuit design of SMArTee v2 and SMArt v4 are effectively the same. The difference is this has the bias tee (DC injector) circuit. It was designed to not affect performance over the frequency capability of the device, and does not--even in sensitive lab tests. If you don't mind the few extra quid you are generally better off with another SMArTee. The only exception I can think of is if you want to use an antenna that represents as zero ohm to the SDR (very rare). You cannot use that type of antenna with the SMArTee but can with the SMArt. Thanks for your support!

Will this work on an android tablet using an otg cable usb adapter

Yes, the NESDR is compatible with Android, provided you install the correct drivers as per our Installation Guide. However, the processing power in a tablet is lower than on a PC, so you may see some performance issues depending on your application and the required software.

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NooElec NESDR SMArTee v2 SDR - Premium RTL-SDR w/Integrated Bias Tee, Aluminum Enclosure, 0.5PPM TCXO, SMA Input. RTL2832U & R820T2-Based Software Defined Radio

Product ID: 61450640

Details

Brand
NooElec
Colour
Black
Compatible devices
[Computer
Connectivity technology
['Radio'
Connector type
usb

⚡Always-on 4.5V bias-tee with 250mA power

📡25MHz-1700MHz wideband reception

🛡️0.5PPM ultra-low phase noise TCXO

73285CFA

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Description

📡 Elevate your RF game with precision and power—don’t just listen, dominate the spectrum!

PLUG POWER SIMPLICITY - Integrated always-on bias-tee powers active antennas effortlessly—no drivers, no fuss, just pure signal.
UNRIVALED SIGNAL CLARITY - Experience a 3dB noise floor reduction for crystal-clear RF reception across an ultra-wide 25MHz-1700MHz spectrum.
PRECISION TUNING STABILITY - Industry-leading 0.5PPM TCXO ensures razor-sharp frequency accuracy, 4x better than typical SDRs.
SEAMLESS MULTI DEVICE SETUP - Compact form factor eliminates USB clutter—run multiple units side-by-side on your Raspberry Pi or laptop with zero interference.
BUILT TO LAST MADE IN NORTH AMERICA - Premium aluminum enclosure with full ESD protection backed by a 2-year warranty—invest in quality that performs.

The NooElec NESDR SMArTee v2 is a premium software defined radio featuring ultra-low noise reception from 25MHz to 1700MHz, an integrated always-on 4.5V bias-tee powering active antennas, and a highly accurate 0.5PPM TCXO for stable tuning. Housed in a durable aluminum enclosure with advanced EMI shielding and ESD protection, it supports seamless multi-device setups without USB interference. Designed and manufactured in North America, it comes with a 2-year warranty, making it the go-to SDR for professionals and enthusiasts seeking unmatched performance and reliability.

Specifications

ASIN	B079C3FHPG
Analog Video Format	PAL
Antenna	Radio
AntennaDescription	Radio
Best Sellers Rank	72,384 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 88 in External TV Tuners & Video Capture Cards
Brand	NooElec
Brand Name	NooElec
Colour	Black
Compatible Devices	[Computer, Laptop, Tablet]
Compatible devices	[Computer, Laptop, Tablet]
Connectivity technology	['Radio', 'USB']
Connector Type	usb
Connector type	usb
Country of Origin	USA
Customer Reviews	4.5 out of 5 stars 384 Reviews
Includes Remote	No
Manufacturer	Nooelec Inc.
Manufacturer Part Number	100777
Model Number	NESDR SMArTee SDR
Network Connectivity Technology	['Radio', 'USB']
Tuner Type	Analog, Digital, TV Tuner
UPC	616469146229

Reviews

A**R

Great device

Quality is good, Reception is great size and compatibility is good

12.12.2025

S**N

Good

Quite good. Perfect for my flight radar 24 setup

13.12.2025

C**L

Nice bit of kit

I waited to see how it went and after months of using it works perfectly gets hot quickly great value for cash DMR and FM are clear pics up more than my trx 1

17.10.2025

G**D

VERY capable 2Mhz SDR receiver!

This is a FANTASTIC entry point into the world of SDR receivers. This version offers the same functionality as the NESDR v4 but with added BiasT power on the SMA port. NooElec also do the Lana wideband RF amplifier, which to be honest adds a load of gain but offers no benefit if used right before the input of the SDR. I suspect it needs to be used like a masthead preamp next to an antenna to amplify signals down a long coax run. The Flamingo FM+ is excellent however and offers good attenuation of broadcast FM stations. This SDR provides great stability and capability when using SDR#. And yes it can be used to pick up ADS-B if you want to feed flightradar24 etc.... 2Mhz of bandwidth is very usable, more is great but you have to pay for it. This is the perfect first step into SDR. Highly recommend!

21.03.2020

P**O

Fantastic little radio, got a second

Got two of these connected to a Raspberry Pi, one for ACARS and the other for ADS-B. Been operating solidly 24/7 since purchase. Really easy to get up and running too. Plugged in directly they operate too hot to touch but on a USB extension or 90 degree adaptor as I’m using, they’re not so bad but still run really hot. To be fair, even a standard USB memory stick runs really hot in a RPi.

23.05.2020

A**R

Excellent little device

Previously purchased an NESDR SMArt which has served me well but needed an RTL-SDR with a bias tee to power an active L-Band patch antenna for receiving Inmarsat Std-C data and the NESDR SMArTee fits the bill. Driver installation was not necessary in my case but it is easy enough to do with the Zadig application and instructions on the NooElec website.

22.11.2019

B**R

A great performer, the best value opton for Sawbird io LNA/ Jaero experimentation

Bias tee always on by default, no messing with software switching. Great little radio for experimenting with Satcoms especially when teamed up with a sawbird io and running Jaero decoding program, as mentioned in my blog pages. Thanks John and the team at Nooelec, great product, brilliant value for money.

29.02.2020

M**.

Problematic

Tried on 2 laptops and 1 pc watched 3 hrs of online YouTube re installed drivers multiple times it doesn't seem to work?

12.07.2019

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73285CFA

Duties & taxes included

In stock

Sold byAmazon Cote D' IvoireDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cote D' Ivoire.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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