CSI Wireless GBX, Справочное руководство

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GBX Reference Manual
20
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Ensure that the antenna is as far as possible from all other equipment that
emits
Electromagnetic Interference (EMI), including DC motors, alternators,
solenoids, radios, power cables, display units, and other electronic devices.
•
If a radar is present, mount the antenna outside the path of the radar beam.
•
If you are installing the antenna on a vessel, mount the antenna as high as
possible, considering maintenance and accessibility. In addition, ensure
that the antenna is lower than the highest metal object on the vessel.
Your beacon receiver calculates a Signal to Noise Ratio (SNR),
measured in dB (Decibels) which indicates the receiver’s performance.
The SNR is height of the signal above the noise floor. The higher the
SNR, the better your receiver is receiving the signal. The optimum
antenna location will be a position where your average SNR is highest.
You should turn on all accessories that you intend to use during normal
operation when locating the best position for the antenna.
2.5.2 Antenna Installation
The MGL-3 uses a 1-14-UNS thread for mounting, which is not
compatible with ¾ NPT or pipe threads. An optional magnetic mount
and 5/8
th
inch Survey Adapter are available from CSI Wireless.
Thread the MGL-3 antenna onto the mount, tightening by hand only. Do
not use any tools for tightening, and do not over-tighten.
For best performance, mount this antenna so that the center of the
black gasket is at least 8 cm (3 inches) above the metal surface upon
which it rests.
Caution - A ¾ NPT or pipe thread is not compatible with the
thread of the MGL-3. Use only a 1-14-UNS threaded mount to
prevent damage to the antenna enclosure. This type of damage is
not covered under warranty.