OPERATOR’S MANUAL
CMA-9000 FLIGHT MANAGEMENT SYSTEM
SECTION 13
RADIO TUNING PAGES
NOTE: In the key sequences shown to display the pages, square brackets “[ ]” indicate a function key and
angle brackets “< >“ indicate a line select key (left and right softkeys).
GENERAL
The FMS offers primary or backup radio tuning of navigation and communication radios. It provides tuning for:
• Dual DMEs
• Dual VORs
• Dual ADFs
• Dual VHFs
• Dual HFs
• Dual XPDR TRANSPONDERs
• Dual ILS/MLS
The FMS can be configured for burst tuning. When the radio receivers are configured accordingly, this scheme
enables radio tuning from the FMS pages or via a dedicated radio control head.
In some installations, the tuning can be achieved only from the FMS or from a backup controller, depending of
the state of an external switch. When the radio tuning is disabled from the FMS due to the external switch state,
entries made on the FMS radio tuning pages will generate an entry advisory message (!RADIO TUNING
DISABLED) to inform the pilot that he may no longer tune these radios from the FMS.
In certain installation architectures supporting multiple FMSs, the crew should attempt to tune the given radio
from any other installed FMS(s) if the original tuning attempt fails. This is valid, for example, when the FMS is
operating in independent mode (as confirmed by the INDEPENDENT OP alert message).
The FMS provides control and display of the active/standby frequencies and settings of all the radios interfaced
on the RADIO Page. This page provides tuning entries and access to more detailed radio control pages, where
self-test and radio modes can be selected. Upon power-up, the FMS reads from the radios their current valid
tuned frequencies and settings, or automatically tunes them to the frequencies and settings used prior to the last
power interruption. Two display formats are available for the RADIO top page: a horizontal or a vertical
presentation. In the horizontal display format, the active and standby frequencies are displayed side by side. In
the vertical display format, the active frequency is displayed on top of the standby frequency.
The FMS provides alert mechanisms to inform the pilot of radio failures. Alerts messages are displayed if radios
fail or they are not responding to the tuning request.
Page 13-1
August 17, 2010
To Next Page
Loading...