User's Manual

Model 1150A DVOR
Rev. - November, 2008
This document contains proprietary information and such information may not be disclosed
to others for any purposes without written permission from SELEX Sistemi Integrati Inc.
5-1
5 PE
RIODIC MAINTENANCE
5.1
INTRODUCTION
This section contains instructions for system level performance testing and maintenance of the VOR.
The DVOR is capable of continuous, unattended operation. Maintainability is based on a schedule consisting of a
quarterly and annual performance checks. The performance checks are described in the paragraphs referenced in
Section 6.
5.2
PERFORMANCE CHECK SCHEDULE
Table 5-1 is a summary of the various performance checks and their recommended intervals. Supervising personnel
are responsible for scheduling these checks based on the recommended intervals. Information contained in Table
5-1 is limited to equipment specifically covered in this manual.
5.3
DOCUMENTATION AND DATA COLLECTION
The procedures and data collection tasks detailed in the maintenance procedures must be followed by detailed
records of the measurements taken and the procedures performed. The regulatory agency associated with the
location of the equipment is the authority on the content of data, the intervals between recordings and the format of
data collected.
The 1150A provides the capability for saving and printing complete screen data sets in either text or graphical
formats. Either format is suitable for historical performance records of the VOR. This data can be collected either
locally or remotely through several RMM connections.
Table 5-1 Performance Check Schedule
Reference Paragraph Performance Check
Intervals can be extended in accordance with local regulations
after the VOR demonstrates stability after installation.
Standards and
Tolerances
Maintenance
Procedures
QUARTERLY
(Remote Operation)
a. Check Auto-Transfer N/A 6.2.7
b. Reassign Main/Standby Transmitters N/A 6.4.4
c. RCSU Operation Check N/A 6.2.10
ANNUAL
a. Physical Inspections N/A 6.3.1
b. Check Carrier Output Power Table 4-1.b 6.2.2
c. Check Station Ident Table 4-1.c 6.2.11
d. Check Antenna VSWR Table 4-1.a 6.2.6
e. Check Battery Backup Transfer N/A 6.2.1
f. Check Carrier Frequency Table 4-1.c 6.2.3
g. Check Operating Frequency Table 4-1.c 6.2.5
h. Verify BITE Wattmeter Calibration N/A 6.4.7
i. Verify BITE Frequency Counter Calibration N/A 6.4.6
j. Verify BITE VSWR Calibration N/A 6.4.5