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First time for Aussie repeater systems
Tuesday, 11 September, 2007
Building on the success of its GPS L1 repeater kit, Rojone is exhibiting L1-L2 repeater systems for the first time. Featured on Stand 1255 in the Team Australia section, the systems were developed in conjunction with the Defence Department and are designed to provide adequate GPS coverage of both bands for aircraft.
Rojone’s repeater systems are available for fixed installation in hangars, shelters or other internal buildings, or they can be mounted and stored in a waterproof Mil-Spec case with IP65 rating, as fully self-contained emergency field-deployable kits. Supplied complete with antennas, the emergency field-deployable kit has been in operation since 2006 at Australia’s Williamtown and Tindal air force bases, providing coverage up to 15m at the maximum radiation direction.
Weighing only 38kg, the portable GPS repeater system is powered by batteries or 240V AC and easily set up in less than 20 minutes. Its features include: High sensitivity receiver antenna, to track satellites with 5° elevation or above; high-performance main RF amplifier with high rejection filters for both L1 and L2; high efficiency TX antenna with more than 100dB RF blocking to VHF and UHF radios and GSM mobile phone signals, plus well controlled radiation pattern to minimise the interference to the GPS receivers outside the shelter. The system also features a self-protection function to prevent damage caused by short circuit of the antennas and connections, an auto power supply control function to select the power supply automatically when the unit is switched on, and an auto isolation detection circuit to speed up installation.