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Hirschmann Electronics GmbH & Co. KG, Neckartenzlingen, presents the new GPS 914 V triplex antenna. The antenna is designed for both dual-band mobile telephony (D and E networks) and public access mobile radio and also for satellite navigation. With its compact all-in-one solution, it represents a new generation of combined aerials for telematics applications such as fleet management or vehicle location.
As well as the GPS frequency 1.57542 GHz, the triplex antenna also covers the telephone frequencies 900 and 1800 MHz. In addition, equipment for public access mobile radio or 70-centimetre band can be operated between the frequencies 410 and 465 MHz.
The antenna gain for GPS is typically 4.5 dBi with a maximum amplification of 28 dB. In the D and E networks, the gain is around
-2 dB, and is 0dB for public access mobile radio. The power supply for the GPS amplifier is designed for 5 volts and is provided via the RF cable.
The GPS 914 V is intended to be installed at the rear of the vehicle roof. If installation holes for radio antennas are already there, these can be used for the triplex antenna installation.
Hirschmann Electronics supplies extension cables for connecting the antenna to the various terminals. The cables for satellite navigation are supplied with specific connectors, so that the antenna can be connected to all standard GPS receivers. All extension cables are connected to the short cable ends of the triplex antenna, which are between 140 and 290 millimetres long.
Hirschmann Electronics GmbH & Co. KG, as a subsidiary of stock market-quoted Aditron AG, is part of the Düsseldorf-based technology group Rheinmetall. The product spectrum of the Hirschmann Group ranges from mobile transmitting and receiving systems, through analogue and digital radio transmission technology, all the way to network components and fieldbus systems.