Novatel 42G1215A-XT-1-2, 42G1215A-XT-1-3 User Manual

42G1215A-XT-1-2 and

42G1215A-XT-1-3

ANTENNA GUIDE

OM-20000154 Rev 1 December 2013

The 42G1215A-XT-1-3 and 42G1215A-XT-1-2 are active antennas designed to operate at the GPS L1 and
L2 frequencies, 1575.42 and 1227.60 MHz and across the L-Band from 1525 to 1560 MHz. The antennas
are aircraft certified for navigation. This guide provides the information needed to install and use the
antenna.

ADDITIONAL EQUIPMENT REQUIRED

• A device with an antenna input port that both receives the RF signal and provides 2.5 to 24.0 VDC to the
antenna is required to set up the 42G1215A-XT-1-3 and 42G1215A-XT-1-2. (NovAtel GPS receivers
provide the necessary power through their antenna RF connectors.)

• Coaxial cable with a male TNC connector

INSTALLING THE ANTENNA

Both the input DC power and the output RF signal flow over a single coaxial cable connected to the unit's
TNC female connector.

The antenna is attached to a surface by means of an ARINC-743 Bolt Pattern.

Four screws pass through the housing of the antenna.

Install the antenna as follows:

1. Place the o-ring into the groove on the antenna base (o-ring supplied).

User-supplied o-ring grease can be used to hold the o-ring in the groove



2. Pre-drill the mounting holes and the connector hole on the surface. Refer to the Mechanical Drawings
section of this guide for details on the ARINC-743 mounting pattern.

during installation.

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3. Attach the antenna to the surface using the four mounting screws supplied. The o-ring will compress
and create a seal between the surface and the antenna.

Ref. # Description

1 Antenna
2 Countersink screws
3 Mounting surface
4 O-ring
5 Pre-drilled mounting holes

4. Remove the dust cap from the antenna’s TNC connector.

5. Attach the male TNC connector of the coaxial cable to the antenna’s TNC connector.

Ref.# Description

1 Antenna screwed into place
2 Surface
3 TNC connector (male)
4 Coaxial cable (female)

6. Attach the other end of the coaxial cable to the antenna input port of the receiving device. The receiv­ing device must be able to provide power as detailed in the SPECIFICATIONS section of this guide. All
NovAtel GPS receivers provide the necessary power through their antenna RF connectors.

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The graphic above shows examples of where the 42G1215A-XT-1-3 and 42G1215A-XT-1-2 antenna may
be located on an aircraft or vehicle (not to scale).

ANTENNA CARE

The 42G1215A-XT-1-3 and 42G1215A-XT-1-2 are designed to withstand the elements, including rain,
snow and dust. However, to ensure your antenna performs optimally, keep the radome clean and brush off
any ice and snow. In addition, ensure the TNC connector remains clean and dry and replace the dust cap
when a cable is not connected.

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