This app was mentioned in 22 comments, with an average of 1.14 upvotes
Android app plus a USB OTG cable and an RTL-SDR
I have not personally tried or built this particular use case, but I have used the SDR and the OTG cable on my android, and it works quite nicely.
This app supposedly will work with an OTG dongle.
http://zk4u.blogspot.com/2015/10/the-cheapest-and-most-stable-efb-ads-b.html
I tried it with every type of SDR that I have and couldn't get it to work.
ya, I'm also a license amateur and recently came across this here on reddit. it was a whole new world for me because there isn't much on the air in my neck of the woods besides old-timers going to lunch. :) One really cool thing I discovered in the last two weeks is that you can plug your SDR into an Android phone. Just get what is called a "USB On The Go" cable - it is typically used for plugging USB storage into the Android's smaller USB input, but allows you to use your SDR on your phone. I haven't done much with it yet, but one thing that was really cool was to plug my SDR into the phone and be able to see aircraft overhead (no internet required - completely uses the SDR). Here's an app that works with my SDR: https://play.google.com/store/apps/details?id=bs.Avare.ADSB&hl=en
For feeding you may want to have a stationary setup, e.g. Stratux, or just a Pi with dump1090.
For traveling you may want to consider something like https://play.google.com/store/apps/details?id=bs.Avare.ADSB
978 is hard to receive on the ground, unless you are very close to a ground station.
Also check out the LiveATC app for radio monitoring.
To be precise, ADSB UAT (978 MHz) can be relayed by ground antennas. This data will usually be enriched with ADSB ES (1090 MHz). Both frequencies can be received directly. UAT is hard to receive on the ground without being close to a ground antenna or having aircraft close by. ES is easy to receive over many miles.
You can for example use the following Android app on ES and won't need to be close to the aircraft. Internet is only required for the map:
https://play.google.com/store/apps/details?id=bs.Avare.ADSB
Here is a good tutorial for Laptop use:
You can get a receiver plus an application for Android tablets or smartphones. Basically the receiver should have the RTL2832U + R820T chips. Easy to set up and use and low cost.
Use an old Android phone and a RTL SDR dongle and send the data to the iPad using GDL90.
If you are looking for low cost ADSB in, check out this one: https://play.google.com/store/apps/details?id=bs.Avare.ADSB
It can forward data to other apps using GDL90.
...and Avare ADSB
How about https://play.google.com/store/apps/details?id=bs.Avare.ADSB
Distance depends on antenna quality.
An option. Not exactly what you are looking for, but worth a look: https://play.google.com/store/apps/details?id=bs.Avare.ADSB
Got any old Android device?
https://play.google.com/store/apps/details?id=bs.Avare.ADSB
You can use this to forward the data to your navigation app.
Not sure if you have an Android phone but the following may work for you: https://play.google.com/store/apps/details?id=bs.Avare.ADSB
Did you verify if your dongle works fine? You may want to test it, e.g. on your phone: https://play.google.com/store/apps/details?id=bs.Avare.ADSB
On Android, you can use: https://play.google.com/store/apps/details?id=bs.Avare.ADSB
And the following for offline (aviation) maps: https://play.google.com/store/apps/details?id=com.ds.avare
If he is using an Android device, he may enjoy an ADSB plane spotting kit:
You can try the ADSB Receiver (Avare ADSB) on Android: https://play.google.com/store/apps/details?id=bs.Avare.ADSB
>The ADSB app used is the ADSB Receiver (Avare ADSB).