Capsat TT-3005M User manual

Maritime Capsat®Antenna
TT-3005M
Installation Manual

Thrane & Thrane
Maritime Capsat®Antenna
TT-3005M
Installation Manual
Copyright©Thrane & Thrane A/S
ALL RIGHTS RESERVED

Information in this document is subject to change without notice
and does not represent a commitment on the part of Thrane &
Thrane A/S.
© 2006 Thrane & Thrane A/S. All right reserved. Printed in
Denmark.
Document Number TT98-110705-A.
Release Date: 11. December 1998

Safety Summary
The following general safety precautions must be observed during all phases of
operation, service and repair of this equipment. Failure to comply with these
precautions or with specific warnings elsewhere in this manual violates safety
standards of design, manufacture and intended use of the equipment. Thrane & Thrane
A/S assume no liability for the customer’s failure to comply with these requirements.
GROUND THE EQUIPMENT
To minimise shock hazard, the equipment chassis and cabinet must be connected to an
electrical ground
DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE
Do not operate the equipment in the presence of flammable gases or fumes. Operation
of any electrical equipment in such an environment constitutes a definite safety hazard.
KEEP AWAY FROM LIVE CIRCUITS
Operating personnel must not remove equipment covers. Component replacement
and internal adjustment must be made by qualified maintenance personnel. Do not
replace components with the power cable connected. Under certain conditions,
dangerous voltages may exist even with the power cable removed. To avoid injuries,
always disconnect power and discharge circuits before touching them.
DO NOT SERVICE OR ADJUST ALONE
Do not attempt internal service or adjustments unless another person, capable of
rendering first aid resuscitation, is present.
DO NOT SUBSTITUTE PARTS OR MODIFY EQUIPMENT
Because of the danger of introducing additional hazards, do not substitute parts or
perform any unauthorized modification to the equipment.
SAFETY DISTANCE FOR THE ANTENNA UNIT
Minimum safety distance of 2 feet (61 cm) from the Antenna.
Radiated intensity at 0.56m is 10 W/m2
Radiated intensity at 0.36m is 25 W/m2
Radiated intensity at 0.18m is 100 W/m2

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Table of Contents
11-Dec-98 Page i
Table of Contents
1 Introduction ............................................................................1-1
1.1Initial inspection.................................................................1-1
1.2Storage ..............................................................................1-2
1.3Repackaging for shipment .................................................1-2
2 Description .............................................................................2-1
2.1Safety Distance for Antenna Unit ........................................2-4
3 Installation ..............................................................................3-1
3.1Transceiver Configuration .................................................3-1
3.2Mounting............................................................................3-1
3.3Mounting considerations....................................................3-2
3.4Antenna cable ....................................................................3-6

Table of Contents
Page ii 16Aug06
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Initial inspection Introduction
16Aug06 Page 1-1
1 Introduction
This manual provides instructions for installing a TT-3005M
Maritime Antenna.
Figure 1.1 TT-3005 Maritime Capsat Antenna
1.1 Initial inspection
Inspect the shipping carton immediately upon receipt for
evidence of mishandling during the transit. If the shipping carton
is severely damaged or water stained, request that the carrier's
agent be present when opening the carton. Save the carton
packing material for future use.

Introduction Storage
Page 1-2 16Aug06
If there is mechanical damage or defect, or if the TT-3005M
Capsat Antenna does not work properly, notify your dealer.
After you unpack the TT-3005M Capsat Antenna, inspect it
thoroughly for hidden damage and loose components or fittings.
1.2 Storage
The TT-3005M may be stored or shipped in temperatures within
the limit -40° C to 80° C. It is advisable to protect the TT-3005M
from extreme temperature variation, which can cause excessive
condensation. It is recommended that the TT-3005M is unpacked
immediately on delivery.
1.3 Repackaging for shipment
The shipping carton for the TT-3005M has been carefully
designed to protect the antenna during shipment. This carton and
its associated packing material should be used when
repackaging for shipment. Attach a tag indicating the type of
service required, return address, model number and full serial
number. Mark the carton FRAGILE to ensure careful handling.
If the original shipping carton is not available, the following
general instructions should be used for repackaging with
commercially available material.
1. Wrap the TT-3005M in heavy paper or plastic. Attach a tag
indicating the type of service required, return address, serial
number and model number.
2. Use a strong shipping container, e.g. a double walled carton
of 160 kg test material.
3. Insert a 7 cm to 10 cm layer of shock absorbing material
between all surfaces of the equipment and the sides of the
container.

Repackaging for shipment Introduction
16Aug06 Page 1-3
4. Seal the shipping container securely.
5. Mark the shipping container FRAGILE to ensure careful
handling.

Introduction Repackaging for shipment
Page 1-4 16Aug06
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Description
16Aug06 Page 2-1
2 Description
Figure 2.1 TT-3005M Maritime Antenna
The TT-3005M is an omni-directional antenna with built-in
LNA/HPA electronics designed to operate on vessels. The
antenna housing is sealed and contains no user serviceable parts.
The antenna is very compact and is designed to operate in a
corrosive environment and in extreme weather conditions without
any service. It has a modular construction that allows easy
exchange of antenna elements.

Description
Page 2-2 16Aug06
The antenna is designed to work with the Capsat transceivers TT-
3020C, TT-3022D and TT-3022C.
The TT-3005M antenna is in compliance with the Inmarsat-C
specifications, and can also receive GPS signals while not
transmitting. This antenna can handle 32 Kbytes transmission
length and up to 100 meter coax cable.
The TT-3005M antenna is designed to operate when the satellite is
visible over the horizon and no signal path blockage is present.
The TT-3005M antenna is equipped with a TNC female connector
and with 1’’ tube mounting. Please see section 3.3.

Description
16Aug06 Page 2-3
TT-3005M
Maritime Antenna
Inmarsat-C/GPS omnidirectional
antenna, RHC polarised.
G/T: -23 dB/K at 5° elevation
EIRP: 14 dBW ± 2dB at 5° elevation.
Temperature: -35°C to 55°C operating,
-40°C to 80°C storage.
Dimensions (H x D): 178 mm x 122 mm.
Weight: 0.90 kg.
Maximum transmission
length
Max. 32Kbyte.
Solar Radiation Max. flux density 1200W/m2.
Relative Humidity 95% non-condensing at 40°C.
Precipitation Up to 100 mm/hour, droplet size 0.5 to
4.5 mm
Ice Up to 25 mm.
Wind Up to 200 km/hour.
Vibration Operational Random 5-20 Hz: 0.005 g2/Hz
20-150 Hz: -3dB/oct. (0.5g RMS).
Vibration Survival Random 5-20 Hz: 0.05 g2/Hz
20-150 Hz: -3dB/oct. (1.7g RMS).
Shock Half sine 20g/11ms
Antenna Mounting 1” tube mounting
Transceiver coax cable 0.7Ohm max DC resistance (shield +
inner conductor)
17dB max RF insertion loss at 1.6GHz.
100 meter max cable length. TNC
connectors.
Table 2.1 TT-3005M technical specifications.

Description
Page 2-4 16Aug06
2.1 Safety Distance for Antenna Unit
The safety levels for the Thrane & Thrane INMARSAT-C Antenna
Units are based on the ANSI standard C95.1-1982 "American
National Standard Safety Levels With Respect to Human Exposure
to Radio Frequency Electromagnetic Fields, 300 kHz to 100 GHz"
This standard recommends the maximum power density at 1.6
GHz exposed to human beings not to exceed 5 mW/cm².
At the maximum radiated output power from the INMARSAT-C
Antenna (16 dBW EIRP) this corresponds to a minimum safety
distance of 30 cm.
In the standards from the European Telecommunication Standard
Institute (ETSI) concerning 1.5/1.6 GHz Satellite Earth Stations the
recommendation will be maximum 8W/m² (0.8 mW/cm²). This
tighter recommendation corresponds to a minimum safety
distance of 60 cm at 16 dBW.
To be sure that this distance is respected the Thrane & Thrane
INMARSAT-C Antenna Units are provided with a label declaring a
minimum safety distance on 2 feet (61 cm).
The relation between the power intensity is as follows:
Radiated intensity (W/m2) Distance (m)
10 0.56
25 0.36
100 0.18
Table 2.2 Radiated intensity

Installation
16Aug06 Page 3-1
3 Installation
This chapter provides specific information enabling you to install
the TT-3005M Capsat Antenna into your own system, with a
minimal effort.
3.1 Transceiver Configuration
This new antenna is designed to use a very low amount of power.
To ensure that the transceiver detects the antenna as connected
the voltage output of the transceiver has to be reduced. Issuing
the following command in the transceiver shell does this:
“Se –f 0”
If this command is not run the transceiver will probably set-up a
warning box stating that the antenna is not connected.
3.2 Mounting
The TT-3005M maritime antenna is constructed for 1” tube
mounting.

Installation
Page 3-2 16Aug06
Figure 3.1 TT-3005M 1’’ Tube Mounting
Is is important to notice that the pole mount device has to be
disconnected from the antenna body when the antenna cable
should be mounted. It is not possible to mount the cable without
dismantling the pole mount.
3.3 Mounting considerations
When installing the Maritime Antenna you should find a location
on the vessel that is as free from obstructions as possible. Also
you should maintain a certain distance to other antennas,
especially radar installations. Normally the best place for the
antenna would be above radar scanning antennas. The following
safe distances should be maintained:

Installation
16Aug06 Page 3-3
Distance to HF antennas > 5 m
Distance to VHF antennas > 4 m
Distance to magnetic compass > 3 m
The antenna is designed to provide satellite coverage even when
the vessel has pitch and roll movements up to 15°. To maintain
this coverage the antenna should be free from obstructions in the
area down to 15° below the horizon. Since this may not be
possible in the fore and aft directions of the vessel, the clear area
can be reduced to 5° below the horizon in the fore and aft
directions and 15° below the horizon in the port and starboard
directions. Any compromise in this recommendation will degrade
performance.

Installation
Page 3-4 16Aug06
15
Horizon
15
Horizon
Zenith
Obstructions should be below these
Figure 3.2 Inmarsat-C Antenna Mounting
If an obstruction such as a pole or a funnel is unavoidable, the
following guidelines apply:
The distance to the obstruction should be so large, that the
obstruction only covers 3 degrees. This means that the safe
distance is:
Safe distance = 20 * Diameter of obstruction
Example: