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Air Traffic Control and Navaids System

CVORNAVAIDS SYSTEMS

Specifications

General Characteristics

Type Conventional VOR
Output Power 25 to 100 W, Adjustable
Bearing Accuracy ± 1.0 degrees
Spurious Attenuation More than 60 dBc
DC Input Power + 40 to + 56 VDC (battery nominal 48 V)
Power Consumption 1.0 kVA (Normal operation)

Environmental Conditions

Ambient Temperature (Except COTS) - 10 to + 55℃ (Indoor Equipment)
- 50 to + 70℃ (Outdoor Equipment)
Relative Humidity
(Except COTS)
Maximum 95 % RH (up to + 35℃),
Maximum 60 % RH (up to + 55℃)
(Indoor Equipment)
Maximum 95 % RH (Outdoor Equipment)
Wind Speed Maximum 60 m per second (Survival, standard)
Maximum 90 m per second (Survival, option)
Ice Load Maximum 5 cm (Survival)

Carrier Signal Characteristics

Frequency Range 108 to 118 MHz
Frequency Stability ± 0.001%
Channel Spacing 50 kHz

Modulation Components

Sub-carrier Center Frequency 9,960 ± 1Hz
Sub-carrier Modulation Depth 30 ± 2 %
Modulation Frequency 30 Hz ± 0.01 %
FM Deviation Ratio 16 ± 1
Variable Signal Frequency 30 Hz ± 0.01 %
Variable Signal Modulation Depth 30 ± 2 %
ID tone Frequency 1,020 Hz ± 0.01 %
ID tone Modulation Depth 4 to 20 %, Adjustable (without voice),
Maximum 10 % (with voice)
Voice Modulation Depth Maximum 30 %

Field Monitor Limit

Bearing Error ± 1 degrees, Adjustable (Tolerance + 0, - 0.2 degrees)
Carrier Level ± 3 dB, Adjustable (Tolerance ± 0.1 dB)
AM Modulation Depth at 30 Hz ± 15 %, Adjustable (Tolerance ± 0.1 %)
AM Modulation Depth at 9960 Hz ± 15 %, Adjustable (Tolerance ± 0.1 %)
ID Modulation Depth ± 50 %, Adjustable (Tolerance ± 10 %)
No ID Period 10 to 120 seconds, Adjustable (Tolerance ± 1 second)
ID Code Mismatching
FM Deviation ± 1, Adjustable (Tolerance ± 0.1)

Antenna System

Antenna Element 4 Alford loop antennas
Field Monitor Antenna 1 Dipole antenna

Applicable Standards

  • ICAO Annex 10
  • EUROCAE ED-52
  • ISO 9001
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