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Just out of interest, where do people stand legaly with these pieces of kit?
Perfectly legal when used as supplied. Data is live with no delay. However, the data feed out of the back of the box which can be read by various add-ons is delayed by 5 minutes. Kintic originally sold the SBS-1 with a "yet to be developed" networking facility which would allow sharing of live data by anybody with the SBS-1. Kinetic have subsequently removed this claim from their blurb, stating threats from "official sources" about security. One of the tabloid rags ran a scare story which didn't help. See the Kinetic Forum for more details.
http://www.kinetic-avionics.co.uk/forums/
Range is around 200nm with base of cover being typical as for SSR returns. About 50-60% of all airline traffic transmits the full ADS-B signal which gives position and plot on the SBS-1 Basestation software just like an SSR only radar. The other aircraft show up in the "list" table but with no position. Military aircraft, needless to say, don't transmit their position.