Is a $35 SDR better than a $175 SDR?

[@kb8m203]

Nice job Carlos. Love these comparisons.

[@LifeAtTerminalVelocity]

Thanks Doug! 👍

[@mbtjr]

Nice job, Carlos. I always enjoy when you do comparisons like this. In this case you've made a great effort to ensure that what each SDR device was seeing as far as signal / interfeference was as equal as possible. Thanks for sharing your findings!

[@LifeAtTerminalVelocity]

Thanks! 👍

[@hierichwerda]

Thanks for this video 🙂

[@LifeAtTerminalVelocity]

Glad you like it!

[@Lordabememes]

Fantastic work! I'm curious to see how the ADSBexchange SDR will stack up against the AIRSPY

[@LifeAtTerminalVelocity]

We shall see, that is literally the data gathering I'm working on right now. ADSBx Orange vs AirSpy.

[@josephdurnal]

What you are really paying for with the AirSpy is the bandwidth, something you don't really need for ADSB. I guess one would have to decide if the extra 20% is worth the AirSpy premium. In most cases, money would be better spent on reducing feedline losses and getting the antenna in the clear.

[@LifeAtTerminalVelocity]

There are also extra bits of DSP that aid in cleaner signals.

[@justplanefred]

Is the data you are showing from ADSB Exchange itself or from a application to feed the network for the site? I've been thinking of setting up a feeder for the network as well but haven't seen as cheap a way to go as doing it with a SDR dongle and maybe a Pi

[@LifeAtTerminalVelocity]

That data is direct from my receiver. The cheapest way I know to set one up is with a Pi. Check with the networks, if they have *low* or no coverage in your area already they will happily set you up with one for free. If you are in the USA they probably have coverage but you never know. I have a video on my channel detailing the process of building one. Super easy stuff.

[@justplanefred]

I meant the display that looked like ADSB exchange website data. Yeah there is reasonably good coverage where I am at less than 2 miles from a Class D airport.

[@LifeAtTerminalVelocity]

Yup, that is still my receiver's info directly being served by the receiver running on the Pi.

[@justplanefred]

@ okay, thanks looks like I still have more to learn before jumping into this. Thanks for your responses

[@HidayatAwan-q2i]

Hi, Sir.which on best work,nesdr smart v5 or airspy?please guide me.thanks

[@LifeAtTerminalVelocity]

I guess you are going to have to watch the series and decide.

[@ReefMimic]

👍🏻

[@lambdaprog]

You need a preamp too.

[@LifeAtTerminalVelocity]

I might add that to the mix but right now all I'm looking to compare is the performance of the individual SDRs on 1090MHz.

[@mobiltec]

What is an SDR?

[@LifeAtTerminalVelocity]

SDR = Software Defined Radio. In this case we are talking about a radio receiver that uses a USB port to deliver the sound of what it receives to a computer. I'm specifically focusing on airplane tracking using ADSB on 1090MHz. ADSB - explained here en.wikipedia.org/wiki/Automatic_Dependent_Surveillance-Broadcast Basically all commercial aircraft are requires to have a beacon that transmits data about their flight. Receivers on the ground can receive those messages and decode them to then see said details on a computer screen.

[@mobiltec]

@@LifeAtTerminalVelocity Not interested at all. I have no idea about anything relating to "software". I don't believe computers and ham radio should be mixed. But that's just me. Everyone else in the world can do what ever they like. I'm just not into it. We're all stuck with computers now. But I don't want to have to use one to operate a ham radio.

[@LifeAtTerminalVelocity]

To each their own. Though this video has nothing to do with ham radio.

[@mobiltec]

@@LifeAtTerminalVelocity I guess not. LOL

[@markusm.lambers8893]

@mobiltec Sir, ... please step back in your cave ! It's getting 'winter' again and getting cold very soon, so someone like you, must take your anualy sleep, during the winter -half of the year, ... ! I could not understand your - let me say - 'stupid thinking', like you did, when I see your first respond/answer, to the 'sdr thing', and what follows up, ... You 'never heard about it', ... ? Maybe you sleep longer then half a year in you 'Neandertal-cave' ? Please go, with 'open eyes', through you life ! And don't close your ears with you hands, and also don't shut your mouth, if it is worth to say something, ... if it is nessecary to do, ... ! You are an adult person, so do your right thing ! Perhaps I will visit you there, in your 'privat cave', ... it's not so far away, from the place where I am living, here in Germany ! I am here in the south/west part of Germany. Rhineland-Palatinate is the federal state, that I am living and Luxembourg and France, are not far away, ... but today, we don't know any 'borders' here. ( Hi Hi ! ! ! - but only for the HAM's, that will understand my little 'joke'. But I could not resist ! ) Other is, ... why do you write/answer, to the 'SDR' belonged theme, when you are 'NOT INTERESSTED', in this part of radio ? ( HAM-radio ) Why not 'leaving the video-scene, and looking for more interested things, ... by example, like this: "Now, bigger and stronger Diesel-Engins in "Trucks and SUV's" are now comming soon, instead of electric motors! Making more than 3 times of bad clima pollutions now! But not any of the disturbing electrical frequency-waves, making us all ill, ... !" - huh ? - - But, this could be 'Fake-News'? - Or am I wrong ? - Sorry for the mistakes, I write in my coments. I am not a native English speaking person. Please excuse me if I make any, or a lot of mistakes, ... when something in grammar or spelling is not O. K. ! 73 de Markus - db9pz - JN39fq - 3miles/5km east of LX - ​