1
GNSS-301L-A40
GM-14915157
Rev 2
February 2019
USER GUIDE
The GNSS-301L-A40 is an active GNSS antenna that receives the GPS L1 1575.42 MHz frequency,
GLONASS L1 1592.95 – 1610.38 MHz frequencies and L-band 1525 – 1560 MHz frequencies.
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 3.8 - 6.0 VDC to
the antenna is required for the GNSS-301L-A40. 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 unit'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.
2. Drill the mounting holes and the connector clearance hole on the mounting surface. See the
Mechani-
cal Drawings
section for mounting pattern details.
The integrator of this antenna is responsible for ensuring antenna installation meets all the
overall integrated system requirements.
Refer to Section 307 of
www.faa.gov/documentLibrary/media/Advisory_Circular/
for information about antenna bonding in aircraft applications.
User supplied o-ring grease can hold the o-ring in the groove during installation.
