LT-4100 User & Installation Manual Rev 1.00 Installation and Mounting
Lars Thrane A/S www.thrane.eu Page 11 of 129
LT-4130 Antenna Unit
The LT-4130 Antenna Unit is designed for outdoor mounting and connected to the LT-4110 Control Unit via
a coaxial cable. The LT-4130 Antenna Unit specifications are available in App. G - Specifications on page 120.
The LT-4130 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-4110 Control Unit user interface display, see Figure 36 on page 39)
• 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 10 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