Just bought my Airnav box and connected it to an Airmaster airband Aerial with very good results this is not a sbs aerial
Glad it works but it isn't optimised for UHF frequencies used by Radarbox. You'll get even better results wit the HBS 1090 Mk.II UHF Aerial from the same company.
Thank you for reply will have a look i was surprised it worked and it works better than the small aerial suppled with the box so it is a start for me any more info to help.