Novatel ANT-A72GOLA-TW User Manual

ANT-A72GOLA-TW

ANTENNA GUIDE

OM-20000136 Rev 2 December2012

The ANT-A72GOLA-TW is an active GPS antenna that receives the GPS L1 1575.42 MHz frequency, the
GLONASS L1 1602 – 1626 MHz frequencies, the GPS L2 1227.60 MHz frequency, the GLONASS L2
1245 – 1260 MHz frequencies and L-Band 1528 – 1556 MHz frequencies.

The ANT-A72GOLA-TW is aircraft certified for navigation. This guide provides the basic information you
need to install and begin using your new antenna.

Additional Equipment Required

• A device with an antenna input port that both receives the RF signal and provides 2.5 - 24.0 VDC to the
antenna is required for the ANT-A72GOLA-TW. NovAtel GNSS 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 use a single coaxial cable connected to the antenna's
TNC female connector.

The antenna attaches to a surface with an ARINC-743 bolt pattern. Four screws pass through the antenna
housing.

To install the antenna:

1. Install the supplied o-ring into the groove on the antenna base.

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

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2. Predrill the mounting holes and the connector clearance hole on the mounting surface. See the

Mechanical Drawings section for mounting pattern details.

3. Use the four supplied mounting screws to attach the antenna to the mounting surface. The o-ring com-

presses and creates a seal between the surface and the antenna.

NovAtel recommends thread-locker (not included) on the mounting screws.

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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 coaxial cable’s male TNC connector to the antenna’s TNC connector.

Ref. # Description

1 Mounted antenna
2 Mounting surface
3 TNC connector
4 Coaxial cable

6. Attach the other end of the coaxial cable to the antenna input port on the receiving device. The

receiving device must be equipped to provide power as detailed in the SPECIFICATIONS section of
this guide. All NovAtel GNSS receivers provide the necessary power through the antenna RF
connectors.

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This graphic provides examples of where the antenna may be located on an aircraft or vehicle (not to
scale).

ANTENNA CARE

The ANT-A72GOLA-TW is designed to withstand the elements, including rain, snow and dust. However, to
ensure that the antenna performs optimally, keep the radome clean and brush off any ice or 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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