RE: AR 500 receiver
I have the AR6000E, AR6200 and AR7000. I use the AR6000E in my beach sloper that doesn't get specked out. I have tested it about a 1/4 mile out and had no issues with reception so I have complete confidence in it for the application it's used. The other two are full range receivers that I fly to the limits of my vision (thermal gliders). Never had a problem with any of the Specktrum Rx's. Just follow the guidance offered by the manufacturer and you'll be fine. Jim