KHF 1050 (PRIMUS HF 1050) SYSTEM DESCRIP-
TION
The KHF 1050 System (also known as the Primus HF 1050 System) is a
solid-state high frequency single sideband transceiver system providing
voice and data communication. Data communication is through an exter-
nal modem.
This publication describes the operation of the KHF 1050 HF
Communication System using the PS440 Control Display Unit.
SYSTEM OPERATION
PS440 CONTROL DISPLAY UNIT
CONTROLS
Revision 0 Mar/2003 KHF 1050/PS440 Pilot’s Guide
1
1 ON/OFF/Volume - Inner concentric knob. Press ON and press OFF.
Rotate to adjust volume.
2 Function Selector - Outer concentric knob. Rotate to select FREQ,
CHAN, MOD, SQL or OPT.
3 Emergency Channel Access Button - Press to gain access to
selection of emergency channels.
4 Functional Test Button - Press to initiate the built-in functional test.
5 Display Area - Digital display of frequencies, modes, channel numbers,
etc.
6 Sub-Function Select Button - Press to enter and select sub-functions.
7 Transmit Lamp - Illuminates when the system is transmitting.
8 Outer Selector Knob - Right outer concentric knob. Rotate to select
frequency, channel numbers, etc.
9 Inner Selector Knob - Right inner concentric knob. Rotate to select
frequency, channel numbers, etc.
10 Enter Button - Press to store data entries.
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Figure 1 - PS440 Controls
KHF1050 PG R0 3/21/03 3:22 PM Page 1
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