Arbiter Systems 120A, User Manual

Page: 16 / 35

3.2 Antenna
3.2.1 Antenna Input
The Model 120A antenna input is a female Type F connector that accepts GNSS signal inputs. The 120A is designed
to work with active antennas and supplies 5 Vdc to energize the antenna.
3.2.2 Antenna Location
The GPS antenna supplied with the 120A is waterproof and designed for outdoor use in all weather conditions and
is designed to mount on the top of the control box through a 23 mm (7/8 inch). The antenna can be mounted in
an alternate location and comes standard with a five-meter (16 feet) antenna cable.
3.2.3 Antenna Mounting
Position the antenna to have a clear view of the sky in all directions of the compass for best satellite tracking.
1. Place the gasket onto the antenna.
2. Pass the antenna base through the 23 mm
(7/8 inch) hole in the top of the cabinet.
3. Spin the plastic base nut onto the antenna.
4. Spin the metal locking nut onto the antenna.
5. Attach the TNC cable end to the antenna and
and tighten.
6. Route the cable as needed to the clock.
7. Attach the F-type connector to the clock and
hand tighten.