Summary of Contents for Narco Avionics MK 12D PLUS TSO NAV/COM
- Page 1 NARCO AVIONICS MK 12D+ TSO NAV/COM ADDENDUM INSTALLATION MANUAL 03118-0620P NARCO AVIONICS INC. 270 COMMERCE DR., FORT WASHINGTON PA 19034 (215)-643-2900 FAX (215)-643-2498 www.narco-avionics.com PRINTED IN THE U.S.A. AUGUST 1999...
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Page 3: Installation
INSTALLATION MANUAL ADDENDUM INTRODUCTION FEATURES The MKl2D+ is an upgraded version of the MK12D. It has a number of new improved features. Internal ACTIVE and STANDBY Frequency Keep-Alive Digital VOR (DVOR) COM Frequency Presets - 10 Channels COM ACTIVE or STANDBY Frequency Entry NAV ACTIVE and Radial Simultaneous Display Through panel CDI Centering Adjustment GENERAL... - Page 4 NARCO AVIONICS MK12D+ Item Order Number Description Accessory Part No. 03118-0317 MK-12D+ 14V (without GS) with: Tray 01372-0106 Installation Kit 03118-0500 03118-0318 MK-l2D+ 14V (with GS) with: Tray 01372-0107 Installation Kit 03118-0500 03118-0319 MK-l2D+ 28V (without GS) with: Tray and Installation Kit...
- Page 5 INSTALLATION MANUAL ADDENDUM 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°. POST INSTALLATION TESTS Refer to paragraph 2.10 in the MK12D Installation Manual and the following Operation paragraph (2.5).
- Page 6 NARCO AVIONICS MK12D+ COM: MHz/KHz AND CHANNEL SELECT KNOBS Both these controls allow for continuous CW or CCW rotation. MHz frequency readout, in Active or Standby display, changes at a rate of 1 MHz per detent. Rotation of the KHz knob steps the standby frequency readout at a change rate of 25 KHz per detent.
- Page 7 INSTALLATION MANUAL ADDENDUM 2.5.2 NAV Section Operation NAV: DISPLAY The left side of the display identifies the NAV Active frequency. The right side of the display identifies the NAV Standby frequency or Radial FROM the station. The Standby frequency will momentarily be displayed upon turn ON, or frequency selection. After several seconds, the radial FROM the station (3 bars if no received signal) will be displayed.
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Page 8: Mechanical Installation
NARCO AVIONICS MK12D+ MECHANICAL INSTALLATION This Section provides the mechanical installation steps for mounting the tray and rear connector. 2.6.1 Tray Lock The tray has a built-in spring locking device. When the Unit is positioned into the tray's track and slid into the tray the tension (lock) spring contacts the Unit.
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