Honeywell PRIMUS 1000 - DIM (Dimming) Key; Function Keys; Sq (Squelch) Key; Sto (Store) Key

PRIMUSr 1000 Integrated Avionics System
A28--1146--112--00
C--9
PRIMUS
â
II Radio System
D Function Keys
- SQ (SQUELCH) KEY -- Pushing the SQ key opens the COM
radio squelch and any noise or signal present intheradiocanbe
heardintheaudiosystem.Thesquelchbuttonisstrictlyatoggle.
The letters SQ are annunciated along the top line of the COM
window when the squelch is opened.
- DIM (DIMMING)KEY -- Pushing theDIM key connects the RMU
brightnesscontroltothe tuningknobandthedisplaycanthenbe
adjusted to match overall cockpit brightness.
- 1/2 (CROSS--SIDE) KEY -- With the cursor in any window except
the ATCor TCASdisplays,pushing the 1/2 keytransferstheentire
RMU operation and display to the cross--side system. If the cursor
is in the ATC or TCAS display window, pushing this key selects
transponder for operation. With enhanced TCAS, the pilot pushes
the key to control TCAS data in the cross--side display.
- STO (STORE) KEY -- Pushing the STO key stores a temporary
(TEMP) COM/NAV preselect frequency stored in memory and
assigns a numbered location, if the cursor has first been placed
around that frequency. TheADF and ATC eachhave onememory
location. When the cursor is placed around the current ADF
frequency or ATC code, push the STO key to store it in memory.
- ID (IDENTIFICATION) KEY -- Pushing the ID key places the
transponder in the identification response mode. The
identification squawk terminates after 18 seconds.
- PGE (PAGE) KEY -- The PGE key accesses the page menu,
shown in figure C--3.Fromthis menu the following functions can
be accessed (depending on the installation):
RADIO PAGE -- Returns the display to the normal tuning page
COM MEMORY -- Preset COM frequencies
NAV MEMORY -- Preset VOR NAV frequencies
ATC/TCAS -- A variety of ATC and TCAS display features
SYS ON/OFF -- Discrete radios ON/OFF switches
NOTE: The RADIO ON--OFF page can be disabled at
installation.
RETURN -- Returns the display to normal tuning page (same
as RADIO PAGE)
MAINTENANCE -- Ground only maintenance menu access.