Ticket #543 (Tuner - rember tuner config on tuner mode

[professor_jonny]

upon changing the mode of the tuner (linked to unlinked then changing backed to linked) the previous config set is lost and must be manually typed in again.

if it could be made to remember the config between mode changes so if you have a failure you can link the tuners temporally until a repair is made then switch back with out having to reprogram the tuner.