Thanks for the info Dave, sorry for the confusion, by ADSB I meant the ADS-B Exchange site rather than the kit in the aeroplane!
Certainly interesting to see a Lear 25 about, they must be otherwise very rare in Europe I'd imagine. Incidentally, I noticed a Swedish AF Sabreliner heading in and out of Boscombe a couple of weeks ago, another rare bird these days. Always had a soft spot for them...