While engaged in VOR or LOC modes:
- A autopilot and Captain’s F/D use information from the Captain’s
course selector and No. 1 VHF NAV receiver.
- B autopilot and First Officer’s F/D use information from the First
Officer’s course selector and No. 2 VHF NAV receiver.
- Different courses and/or frequencies for two VHF NAV receivers can
cause disagreement between the Captain’s and First Officer’s F/D
displays and affect A/P operation.
Note:
When a localizer frequency is selected, VHF NAV radios automatically
switch from tail antenna to nose antenna when VOR/LOC is annunciated
(armed or engaged). If antenna switching does not occur, LOC mode is
inhibited.
Note:
Localizer backcourse tracking is not available.
Collins MCP
Glareshield - MCP 700/800/900