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Ground Stations - Stockholm Arlanda VDL 4000 AO

    

 

 


The VDL 4000/AO transponder has been developed to meet the stringent demands of safe surface movement operations and more efficient utilisation of airport resources.

Product description

The vehicle Transponder operates in accordance with the ICAO standard for VDL Mode 4 digital radio link.

It is the only standardised data link that is also suitable for time-critical applications and is characterized by very high delivery probability from the unique self-organized TDMA VHF data link. Its FM modulation scheme (GFSK) gives the data link long range at low power including very good transmission characteristics on ground, e.g. at airports.

The transponder is an important component of the Airport Organiser system through its ability to transmit and share information in real time, enabling collaborative decision making (CDM).

Information from the airport database is interfaced to the system and distributed to all users as Information Broadcast (INFO-B). Automatic Dependent Surveillance Broadcast (ADS-B) is provided for positioning and identification of all ground movements.

The equipment features applications for task assignment and vehicle coordination in ground handling as well as surveillance, routing, guidance and control for the highest level of operation in Advanced Surface Movement Guidance and Control Systems (A-SMGCS).

Specifications

General
Power requirements 12 – 30 VDC
DC - DC converter Option
GNSS receiver (EGNOS option) 16 parallel channels
Functions
ADS-B
FIS-B
GNS-B
Point-to-point
TIS-B
External interfaces
GNSS antenna 1
Maintenance interface RS 232 1
RS 232 2
RS 422 1
VHF combined Tx/Rx 1
Physical characteristics
Cooling Not required
Size (W x L x H) 125 x 225 x 80 mm
Weight 2.8 kg
Receiver
CCI <12 dB
Number of receivers 2
Frequency stability +/– 0.0005% = +/– 5 ppm
Channel spacing 25 kHz
Sensitivity <–98 dBm
Tuning range 118.000 – 136.975 MHz
Transmitter
Baud rate 19200 bps
Channel switching time < 13 ms
Frequency stability +/–0.0005% = +/– 5 ppm
Frequency stability GFSK
Channel spacing 25 kHz
Output power 30 – 40 dBm (1 – 10 W) adjustable
Number of transmitters 1
Tuning range 118.000 – 136.975 MHz
TX to RX turnaround time < 1 ms
Certification
- ICAO SARPs and annex 10 compliant
Operating temperature –30°C – +60°C
SW RTCA/DO 178B
Installation kit
Cabling and connectors