Dave, If what I think is true, the 780 LTR trunking may be superior to
the 92/2067...here is the theory.
Since the 92/2067 doesn't care about it channel/HR order, it must
be scanning all active channels looking for the correct Group ID/HR
combo (in closed mode). I have noticed delayed responses on a busy system
and obvious missed replies, probably due to this.
If the 780 knows where the HR channel is in its bank for the desired
group, it just goes there and decodes data. If the group goes active on
its HR, the radio quickly decodes it (no scanning). If the group
gets "trunked out", the new channel repeater number is transmitted by
the system on the group's HR. The system must operate like this to tell
users where to join the conversation if not on the group's HR. The 780
grabs the new repeater number, goes to that channel, and decodes only
on that group ID, then goes back to the HR at the end.
The above reminds me of Star Trek 6 (movie) where Spock reasons "in any
case, what we are looking for is...here" i.e. HR. As for patent infringement,
for GRE's method I doubt if there's much to be infringed.
Does this seem to make sense?
Dave