Phoenix Geophysics MTU-TXC, Руководство пользователя

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13 Chapter 1
General techniques
13
Tip To prevent damage to the PC because of accidental
polarity reversal, start up the PC and the MTU-TXC
independently and verify their proper operation before
connecting the two together.
Connecting the GPS antenna
The global positioning system (GPS) antenna must
always be connected to the MTU-TXC when operating
the equipment, because the satellites provide the
necessary time signals. The cable has two connectors:
one with slots for quick connection to the MTU-TXC,
and one with threads for connection to the antenna.
To connect the GPS antenna:
1. Screw the threaded connector of the antenna cable
to the underside of the antenna head. (See
Fig. 1-4.)
2. Fit the slotted connector to the
GPS ANT
connector on
the MTU-TXC as described on page 11.
3. Open the antenna tripod and position the GPS
antenna so that it is level, stable, and has
unobstructed sight lines to as much of the sky as
possible. If necessary, tape the antenna tripod to
another object (e.g., a stake, post, or larger tripod)
so that it is raised above tall grass or shrubs.
Fig. 1-4: GPS antenna cable connectors.
to GPS
antenna
to MTU-TXC