The PS440 Display Unit controls the Primus HF 1050 solid-state high frequency single sideband transceiver system. The PS440 provides control of a single or dual HF communications radio system. Full operational control is accomplished via dedicated low speed, digital ARINC 429 data bus.
Version 071-01605-0101has a gray face with white display.
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规格：
Weight:
1.1 lb
Dimensions:
5.375 x 2.375 x 2.625 in.
Power requirements:
28 VDC at 7W max
Temperature:
-20ºC to 70ºC
TSO:
C31d, C32d
ARINC 429:
Mark 33 Digital Information Transfer System (DITS)
ARINC 719:
Airborne HF Comm Transceiver
ARINC 720:
Digital Frequency/Function Selection
ARINC 753:
HF Datalink System
特征：
Single or dual HF communications radio system
Dedicated low speed, digital ARINC 429 data bus
Emergency channel access button for easy access to emergency channels
Functional test button to initiate built-in functional test
Sub-function select button to enter and select sub-functions
Indicator light when system is transmitting
Frequency selector knob, 100 programmable channels
Fail mode displays specific failures
Squelch - SBH, SBL, SQH, SQL
