airnav boxes

[omega]

what benefits would I gain by having one of these airnav receivers or similar,against what I can see for free on fr24,what does this receiver give me different from what I can already get for free.do not wish to share info over net as I believe if u want to these boxes can do that,just solely for rx,many thanks..

[rocket]

The free sites rely on input for coverage from these virtual radar ADS-B receivers such as Airnav, SBS and the SDR type dongles etc.

I can turn my AirNav RadarBox on here and see aircraft that are not on the free sites due to lack of coverage.