Apr/2006; 1) System Power Up; 2) Channel Operation; 3) Direct Frequency Mode - Honeywell KHF 1050 System Installation Manual

By including the appropriate components in an installation, the KHF 1050 HF
system capabilities can be increased to allow the system to support Data, SELCAL,
and Secure Voice communication.
4.A.(1) System Power UP
Power-up is installation and controller dependant.
• PS440 - Press the Volume Control knob.
• MC-850 - Access the ON/OFF function from the second HF page, if so
configured.
• RM-855 - An ON/OFF Switch is not provided on the RM-855. An external
switch may be used.
Some installations may be configured to turn the KHF 1050 system "ON"
whenever the Avionics Master switch is turned "ON". However, it is preferable
to provide a means of applying power to the KHF 1050 system so that the
system can be turned "OFF" on flights when HF communications is not
required.
4.A.(2) Channel Operation
Refer to Pilots Guide P/N 006-18289-0000 for PS440 CDU channel operation
description.
Refer to Users Guide P/N PS7032270 for MC-850 MCDU operation.
Refer to Pilots Guide P/N A28-1146-121 for RM-855 RMU operation.
4.A.(3) Direct Frequency Mode
Refer to Pilots Guide P/N 006-18289-0000 for PS440 CDU direct frequency
mode description.
Refer to Users Guide P/N PS7032270 for MC-850 MCDU direct frequency
mode description.
Refer to Pilots Guide P/N A28-1146-121 for RM-855 RMU direct frequency
mode description.
Revison 2
N
KHF 1050 SYSTEM INSTALLATION MANUAL
23-10-09
Page 38

Apr/2006