Seatex DPS 200 Installation Manual, rev. 4 Installation
14
3.6 Antenna and cable mounting
The maximum length of the antenna coaxial cables is 100 meters for the cable types normally
supplied with the system. If longer cables are needed, a low noise signal amplifier (LNA)
should be fitted.
3.6.1 GPS/GLONASS antenna and cable mounting
Instructions for mounting of the GPS/GLONASS antenna are included in the following
paragraphs and on the attached drawing 36300-MA-017 on page 48.
The cable used is ½" Cellflex superflexible.
Install the antenna as follows:
1. Attach the antenna to the mounting rod and attach the mounting rod to the ship's masthead
or pole with proper mounting hardware like U-bolts, hose-clips or tie-wraps.
2. Attach the antenna cable to the antenna.
3. Wrap outdoor cable connections with waterproof self-vulcanising tape as described in
section 3.5. An alternative way of waterproofing is to use heat shrink hose with glue. The
hose should cover the whole connector and part of the cable.
4. Dependent on the cable installation, secure the cable to the mast every one to three meters
with clamps or bands.
Note
The cable running from the GPS/GLONASS antenna to the DPS 200 unit should be as
straight as possible. Do not crush or crimp the cable with tie-downs, as this will affect
the electrical properties of the cable.
5. Check the antenna cable against short-circuiting. Route the connector at the other end of
the antenna cable to the main unit.
6. Connect the cable to the DPS 200 unit. A short RG-213 or RG-214 cable is delivered in
order to get secure cable runs into the cabinet.
If the antenna cable is attached to the DPS 200 unit, do not attach the antenna cable to
the antenna when the unit is running. If the antenna cable is short-circuited with
POWER ON, the GPS/GLONASS receiver will be damaged.
CAUTION
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