David,

Quote :

"but I am continuosly looking for the most reliable and safest radio system for my jets, particularly large complex and expensive machines"

Unquote

Fine, so we have the same goals here and then I would ask you what do you think of the ACT DSL RX technology ? And about the DPSI-TWIN ? Thoses unites are out since quite some time and I feel we greatly miss feedback about them. Let's forget about the 2freq ops, to compare between Weatronic/DPSI-TWIN and ACT DSL... what would be the best system ?

Regards
Sk