GPS Repeaters For Aircraft Hangars
The structure of an aircraft hangar can block the ingress of GPS signals, making it impossible to test on-board navigation equipment without pushing the aircraft outside where it has a view of the sky.
A GPS repeater system overcomes this physical barrier by transferring the outdoor signals to the interior of the hangar, which means all maintenance work can be carried out indoors.
A repeater system installed in an aircraft hangar:
- Receives the satellite signals via an external GPS antenna
- Sends the signals down a coaxial cable to a repeater unit (sometimes multiple units) inside the hangar
- The repeater amplifies and re-radiates the signals indoors so that all GPS receivers within range can use the outdoor signals.
GPS repeater in a military hangar
In a military situation, the same applies regarding the ability to carry out maintenance without leaving the safety of the hangar.
Additionally, a fighter jet would normally experience a satellite acquisition delay when exiting the hangar in a hurry – the time-to-first-fix (TTFF) could be a dangerously long period of time.
A GPS repeater ensures that fighters always have GPS lock when inside the hangar to ensure there is no satellite acquisition delay upon exit
GPS frequency bands covered
- GPS L1 (1575 MHz)
- GPS L2 (1227 MHz)
- GLONASS G1 (1602 MHz)
- Galileo E1 (1575 MHz)
- Beidou B1 (1561 MHz)
A repeater kit for GPS L1 signals is available here.
This repeater kit provides GPS L1 with GLONASS, Galileo and Beidou signals.
The addition of an L2 signal gives a much more accurate positional fix and is widely used in military and civil aviation applications, as well as for highly-accurate geo-surveying applications.
A repeater kit for GPS L1, L2, GLONASS, Galileo and Beidou signals is available here.
The repeater unit has a built-in re-radiating antenna with a beam width of 180 degrees, with a hemi-spherical-shaped radiation pattern.
The coverage area achieved is partly determined by the height of the repeater above the ground.
Generally – one repeater unit placed 10 meters above ground level will provide a coverage area with a coverage area below of approx. 40 meters diameter.
A repeater kit comes with all you need to get indoor GPS signal in your hangar.
For larger areas where one single repeater is not enough we can offer you a custom-designed-system to meet your exact requirement.
An installation guide for installing a repeater in a hangar is here.
Available in kit form or as a bespoke solution
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