AIR NAVIGATION & METEOROLOGY
Navigational Aids
DVOR
DOPPLED VOR
Toshiba’s DVOR design is based on the
advanced technology and the experience of
having more than 50-year-history in do-
mestic and worldwide airports. This Toshiba
hardware contributes to the improvement in
air traffic safety throughout the world.
GENERAL CHARACTERISTICS SYSTEM
Type Double Side Band Dual transmitters, monitors and power supplies
Output Power 25 to 100 W, Adjustable Ergonomic design
Bearing Accuracy ±0.5 degrees Color touch panel for local control
Spurious Attenuation More than 60 dBc Extensive BITE for fault isolation
DC Input Power +40 to +56 VDC (battery nominal 48 V) Front accessible plug-in modules for easy exchange
Power Consumptions 2.0 kVA (Normal operation) Local and remote setup and control through a user-friendly PC
program
Flexible PC interface: local area network, serial link and modem link
ENVIRONMENTAL CONDITIONS
Optional battery backup with dual battery banks
Ambient Temperature 10 to +55º (Indoor Equipment), -50 to +70º
(Except COTS) (Outdoor Equipment) Recording operation events and equipment conditions
Relative Humidity Max. 95%RH (up to +35º), Max. 60%RH (up to Master and slave operation with associated DME (Distance
(Except COTS) +55º) (Indoor Equipment), Max. 95%RH (Out- Measuring Equipment)
door Equipment)
Wind Speed Max. 60 m per second (survival, standard), Max.
90 m per second (survival, option) TRANSMITTER
Ice Load Max. 5 cm (survival) Good control of sideband waveform and phase through digital
signal generation and separate SIN and COS sideband amplifiers
Up to 100 W output power
CARRIER SIGNAL CHARACTERISTICS
Frequency Range 108 - 118 MHz
MONITOR
Frequency Stability ± 0.001%
Advanced digital design for high stability and accuracy
Channel Spacing 50 kHz
Automatic continuous integrity testing
Reference Frequency 30 kHz ± 0.01 %
Monitor and control by digital hardware
Reference Modulation 30 ± 1 %
Depth Optional bearing monitor with two additional field antennas
ID tone Frequency 1,020 Hz ± 0.01%
ID tone Modulation 4 to 20%, Adjustable (without voice) ANTENNA SYSTEM
Depth Maximum 10% (with voice)
Voice Modulation Depth Maximum 30% 48 sideband antennas
VSWR monitoring on all antenna outputs
SIDE BAND SIGNAL CHARACTERISTICS
Signal distribution unit consists of plug-in modules in main rack
Sub-Carrier Frequency 9,960 ± 1 Hz Optional separate signal distribution rack for mountaintop use
Sub-Carrier Frequency ± 0.001 %
Stability
FIELD MONITOR LIMIT
Modulation Frequency 30 Hz ± 0.01 %
Bearing Error Carrier ±1 degree, Adjustable (Tolerance
Modulation Depth 30 ± 2% Level +0, -0.2 degrees)
Deviation Ratio 16 ± 1 AM Modulation Depth ±3 dB, Adjustable (Tolerance ±0.1
at 30 Hz dB)
AM Modulation Depth ±15%, Adjustable (Tolerance ±0.1%)
ANTENNA SYSTEM APPLICABLE STANDARDS at 9960 Hz
Antenna 48 + 1 Alford loop ICAO Annex 10 ID Modulation Depth ±15%, Adjustable (Tolerance ±0.1%)
Elements antennas No ID Period
1 Yagi antenna EUROCAE ED-52
ID Code FM Deviation ±50%, Adjustable (Tolerance ±1%)
Field Moni- (edge type is optional) ISO 9001
tor Antenna
Optional separate signal distri-
bution rack for mountaintop use Designed and manufacturated by
