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.
1-19
1.3.2
Monitor
Table 1-4 DVOR Equipment Specifications (Monitor)
Parameter Specification
Configuration: Dual (“And”, “Or” user selectable)
Azimuth Measurement Resolution: ±0.01°
Azimuth Measurement Range: 0 to 360°
Azimuth Measurement Accuracy: ±0.02°
Azimuth Readout Indication: Digital, on the Local Touch Screen display and on the station computer
(PMDT)
Phase Shift Control: Calibrated against test generator
Monitoring of VOR Signal: At any desired azimuth angle
Adjacent Channel Rejection > 50 dB
Monitor Limits
Bearing: 0.1 to ± 5° from any radial, 0 to 360°
30Hz AM Amplitude: ±2% from 30% nominal, adjustable, 21 to 39%
30Hz FM Amplitude: ±2 from nominal ratio 16, adjustable, 12.6-19.4 (ratio)
9960 Hz Subcarrier Amplitude: ±2% from 30% nominal, adjustable, 21 to 39%
Level Alarm: ±3 dB from nominal carrier power, adjustable ±9 dB from nominal
Identification: Incorrect code, lack of ident, continuous ident, or level change of ±3%
Stability of Alarms
Phase Shift: better than ±0.1°
Amplitude: better than ±0.1%
Alarm Time Delay: Adjustable, 4-99 seconds
VSWR Measurement: Continuous measurement and display of individual sideband antenna
VSWR. Maintenance alert if limit exceeded.
VSWR Alarm Limit: 1.0 to 3.0:1
Notch Monitor 50% from reference value, adjustable 0 to 100% nominal