Narco Avionics MK 12D PLUS TSO NAV/COM, Дополнение к инструкции по установке

Страница: 5 / 8

INSTALLATION MANUAL ADDENDUM
8/99 3
2.3 PRODUCT SPECIFICATIONS
NOTE: Refer to paragraph 2.3 in the MK12D manual. Please note that the MKI2D and the MKl2D+
now have 760 COM channels and tune to 136.975 MHz. The digital VOR accuracy is
±
1
°
.
2.4 POST INSTALLATION TESTS
Refer to paragraph 2.10 in the MK12D Installation Manual and the following Operation paragraph (2.5).
2.5 OPERATION
The Internal Keep-Alive maintains the last set COM and NAV frequencies and preset channels. When
the Unit is turned ON, these frequencies and/or channels will be seen in the displays.
FIGURE 2-1 MKl2D+ FRONT PANEL
2.5.1 COM Section Operation
COM: DISPLAY
The left side of the display identifies the COM Active communications frequency, and the letter "T"
(when lit) to indicate that the Mike Key is depressed and the Unit is transmitting.
The right side of the display identifies the COM Standby frequency, or channel number.
COM: OFF-VOL-PULL TEST
OFF is the maximum counterclockwise rotation of this control. Clockwise rotation past the "click" turns
both the COM and NAV Sections ON.
VOL, once the Unit is turned ON, continued clockwise rotation increases the COM audio volume.
PULL TEST when pulled deactivates the squelch circuit.