Safety Distance For Antenna Units; Wiring The Tt-3026C Mini-C Transceiver; Grounding; Power Connection - Thrane&Thrane SAILOR TT-3000E mini-C GMDSS System Installation Manual

TT-3000E mini-C GMDSS System
4.3.3 S
AFETY
When transmitting, the electromagnetic field radiated from
the antenna can be harmful. To avoid danger, keep a distance
of 1 ft. (30 cm.) from the transceiver.
To be sure that this distance is respected, the TT-3026C mini-
C Transceiver is provided with a label declaring a minimum
safety distance of 1 ft. (30 cm.) on the antenna.
The relation between the power intensity and distance is as
follows:
Distance (m) from antenna
0.20
0.13
0.07
4.3.4 W
IRING THE
The TT-3026C must be connected to the TT-3616C GMDSS
Interconnection Box by use of a special cable delivered with
the system. There are 4 lengths of connecting cables available
from T&T: 5m, 10m, 20m and 50m (refer to section 2.10 for
option numbers). Refer to Appendix B to get information
about the individual signals found in the cable.
4.3.5 G
ROUNDING
Make sure that the shield of the cable is connected to a
proper ground, i.e. the ship's structure / hull via the cable
relief bracket found in the TT-3616C GMDSS Interconnection
Box. This is very important in order to safely bypass
interference from Radar, VHF/MF/HF radio equipment and
other environmental noise sources (see Figure 23and Figure
24).
4.3.6 P
OWER
The power connections of the TT-3026C consist of 4 wires (two
red and two black). All 4 wires MUST be used (see Figure 25).
D A
ISTANCE FOR

Table 7 Radiated intensity

TT-3026C M
C
ONNECTION
37/97
Installation Manual
U
NTENNA NITS
Radiated intensity (W/m
10
25
100
-C T
INI RANSCEIVER
2
)