BendixKing KHF 990 - Manual (Page 48)

example, the sequence can be described as follows:
1. The operation / interval page is displayed.
2. Move the cursor over the interval value field
3. Use the VAR knob to change the interval.
If the data is correct, skip this step
4. Push the ENT key to accept the interval value.
5. The next interval is displayed.
Repeat Steps 3 through 4 until all intervals
have been reviewed or modified.
MICROPHONE KEY OPERATION.
In the Manual mode the microphone key controls the normal talk-lis-
ten transitions of push-to-talk operation
In the ALE mode the response to microphone key is dependent on
the current ALE state. If ALE is idle (not in the process of sending or
receiving a call) then activation of the microphone key initiates a call
to the ALE address currently displayed on the screen. The
channel(s) used for the ALE call depends on the ALE channel state
which can be either scanning or single channel. In the ALE scanning
state the call is attempted on the channels selected automatically by
LQA criteria until a link is established or all channels on the list have
been tried. In the ALE single channel state the call is initiated on the
active channel only . If a channel is not tuned, then an automatic tun-
ing sequence occurs the first time a transmit is attempted on the
untuned channel.
In the ALE linked state the microphone key controls the normal talk-
listen transitions of .microphone key operation. The ALE linked state
commences when the audible alert is given, and terminates when link
termination occurs and the radio returns to the ALE idle state.
OPERATOR ALERTS
There are three types of operator alerts, audible alert, Message flag,
and the Remote Lamp. These alerts are used to inform the operator
of messages, states, or faults that require the operators attention.
The Audible Alert is a short burst of tones (similar to a ringing tele-
phone) on the audio output. The Message flag is a flashing “M” on
the display. The Remote Lamp is a discrete output that can be con-
nected to a remote mounted lamp. The table below shows the con-
ditions that activate these alerts.
Operation
3-11 KHF 950/990 Pilots Guide
Rev. 0
Dec/96