This is why we train (kind of long)

"Dave Katz" wrote in message
...
| "C J Campbell" writes:
|
| with advanced aircraft systems. Perhaps the task should be automated --
dial
| in a localizer or ILS, and the CDI automatically switches to NAV.
However, I
| can envision problems with this approach as well, so to speak. :-)
|
| The Garmin units do this if you select an ILS approach (which puts the
| localizer frequency into the standby) and remember to flip the
| frequency to active. You get GPS guidance through the procedure until
| you're inbound and intercepting the final approach course.
|
| Of course, then you have to remember to put it back into GPS mode if
| you want missed approach guidance.
|
| I believe this is configurable.

Yeah, my GARMIN GNS 430 would do that. Instead of an external NAV/GPS switch
such as you see in most GPS installations, the GARMIN units have the switch
built into the panel. GARMIN can do this because their units are all-in-one
boxes, so it is a simple matter to switch program that in. Even though the
CNX-80 the OP used is also an all-in-one box, it appears that it must be
switched manually.

I have not yet seen a GARMIN 1000 installation, but I understand that it
works more like the GNS-430/-530 units.