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Airborne Law Enforcement agencies have deployed Skylink HD, SP and DP antennas to downlink airborne surveillance and reconnaissance information to ground operations.
TROLL SYSTEMS, the world leader in airborne microwave antennas and controllershas developed lower cost products like our deployable DP and SP antennas designed specifically for the public safety market. Regardless of the antenna system you purchase Troll provides antennas optimized for your frequency band, including the new public safety and emergency responder bands 4.9 GHz and 3.5GHz.
> SKYLINK VIDEO
SKYLINK HD and CONTROLLERS - C90, C10 installation Las Vegas Police
New Directional Diversity Receive Systems are fully self-contained receive sites. 
The package includes:
- Six channel diversity receiver.
- Steerable high-gain directional antenna.
- Five reconfigurable slotted dipole panel antennas with overlapping coverage totaling more than 360 degrees.
- A remote-control package that provides power and communications.
> Data Sheet PDF
Troll is also engaged in a number of military communications projects: Among the most interesting are:
1. UAV projects - long range HD video downlinks 
2. Ruggedized vehicle tracking, transmission, and telemetry projects for the US Army.
3. Air to ground directional diversity receive sites, repeaters and master control sites.
Troll's Development Lab and Testing Environment
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