"To be perfectly legal, a controller need to be placed into both units. Being *perfectly* legal costs money and hams are cheap, therefore, usually, only half of the system is legal.
Kevin" I know of a 6 meter split site repeater in the capitol city of PA that has absolutely NO ID. Most likely a pair of FT-8900's set up as back to back crossband repeaters. Sad Milt N3LTQ
