Site Survey – Land Based
Sea Tel Tracker 6000
In as much as is possible, don’t lay the coaxes on power cables. Don’t lay the coaxes on, or
directly beside, the cables from a second Sea Tel antenna, Inmarsat antenna and/or GPS
antenna that are also passing L-band frequencies. Don’t lay the coaxes on, or directly beside,
radar cables that may inject pulse repetition noise –as error bits - into your cables.
2.5.2.
Antenna Power Cable
Be cautious of length of the run, for voltage loss issues, and assure that the gauge of the
wires is adequate for the current that is expected to be drawn (plus margin). Antenna power
is recommended (but not required) to be from a UPS, generally the same one that supplies
power to the below decks equipment.
Power cables shall comply with the provisions of IEC 60092-350 and -351 as practical. Power
cables may be routed through the same conduit as the signal cable from the junction box to
the base of the ADE. Power cables shall pass through separate radome penetrations from the
signal cable.
The power cable shall be continuous from the UPS (or closest circuit breaker) to the ADE
connections within the radome. The power circuits shall be arranged so that ‘active,’
‘common’ and ‘neutral’ (ground) legs are all made or broken simultaneously. All circuit legs
shall be carried in the same cable jacket.
2.5.3.
ACU Power Cable/Outlet
The AC power for the ACU and the ADE is not required to be from a UPS (same one that
supplies power to the ADE), but it is recommended.
Power cable shall comply with the provisions of IEC 60092-350 and -351 in so far as
practicable.
2.5.4.
Gyro Compass Cable
Use good quality shielded cables (twisted pairs, individually foil wrapped, outer foil with braid
overall is best). You only need 2-wires for NMEA Compass signal. Be cautious of length and
gauge of the run for voltage loss issues.
2.6.
Grounding
Refer to the Installation chapter for grounding/bonding information.
2‐3
EAR Controlled - ECCN EAR99
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