Honeywell KHF 1050 Pilot's Manual page 13

Channel Simplex Tune
(Default)
EMR 1
EMR 2
EMR 3
EMR 4
EMR 5 12290
EMR 6 16420
Simplex operation is typically used for communicating with other aircraft, ships or emergency ground stations.
Semi-Duplex operation may be used for communications with Maritime Radiotelephone Network ground stations.
Upper Sideband Voice is the only emission mode available when using emergency channels.
Table 2 - PS440 Emergency Channels (Factory Default Programming
The following steps illustrate how to select already programmed emer-
gency channels.
1. Press and hold the EMER button for
approximately 2 seconds. The display will
appear as shown in Figure 10 with EMR 1
as the default channel.
2. If other than EMR 1 is desired turn the
right inner or outer knob to select the
desired emergency channel number.
Even if the selected channel has previous-
ly been programmed for semi-duplex oper-
ation, simplex operation will initially be
selected. If desired, press the ENT button
to select semi-duplex operation. SPLT will
be displayed for two seconds in the lower
part of the display. Press the ENT button
again to return to simplex operation. SIMP will now be displayed for two
seconds in the lower part of the display. Repeated pressing of the ENT
button will toggle between simplex and semi-duplex operation.
3. Momentarily press push-to-talk to tune the antenna to the new channel
frequency.
4. Press the EMER button to exit the emergency channels.
Revision 0 Mar/2003
Frequency (kHz)
Semi-Duplex
(also called Split)
2182 Simplex Only
4125 Rx: 4417 Tx: 4125
6215 Rx: 6516 Tx: 6215
8291 Simplex Only
Rx: 13137 Tx: 12290
Rx: 17302 Tx: 16420
ITU Channel
----
421
606
833
1221
1621
9
KHF 1050/PS440 Pilot's Guide
Assignment
International Distress
and Calling.
International Distress
and Calling.
Maritime Distress
and Calling.
Maritime Distress
and Calling.
Maritime Distress
and Calling.
Maritime Distress
and Calling.
Figure 10