LT-3100 User & Installation Manual Rev. 1.06 Installation and Mounting
Lars Thrane A/S www.thrane.eu Page 11 of 155
LT-3130 Antenna Unit
The LT-3130 Antenna Unit is designed for outdoor mounting and connected to the LT-3110 Control Unit via
a coaxial cable. The LT-3130 Antenna Unit specifications are available in App. G - Specifications on page 145.
The LT-3130 Antenna Unit has an N connector (female) mounted, centered at the bottom of the antenna.
Mounting and installation considerations:
• Mount the unit vertically (with the N connector pointing down)
• Mount the unit with free line of sight to the Iridium® and GNSS satellites. Make sure that the unit
can receive signals from the Iridium® and GNSS satellites (satellite reception information is
available in the LT-3110 Control Unit user interface display, see Figure 43 on page 43)
• Mount the unit on a rigid structure with a minimum of exposure to vibration and shock
• Mount the unit using either the Bracket Mount or Pole Mount provided by Lars Thrane A/S
• Mount the unit outdoor with an ambient temperature between -40°C to +55°C (-40°F to +131°F)
• Mount the unit with a minimum angle of 20 degrees towards a radar antenna (above or below) and
keep a minimum distance of 2.5 m (8 ft)
• Mount the unit at least 1 m. (3 ft.) away from radio transmitting antennas (VHF, UHF, MF-HF)
• Mount the unit away from Inmarsat and transmitting VSAT antennas
NOTE: It is only the LT-3130 Antenna Unit marked with HVIN 2.00 (Unit Label) or newer that can
be used for the LT-3100 Satellite Communications System. The LT-3100 software will check
the antenna unit during power up and the system will not be operational, if connecting a
legacy LT-3130 Antenna Unit.
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