SRC CTW100 Operation instructions

Released Version: V.1.0
Released Date: 2010. 03. 12.
SRC Co.,Ltd.
65-23, 2Ga, Namhang-dong, Youngdo-Gu, Busan, Korea
TEL 051 - 417 - 5807 FAX 051 - 412 - 6197
HOMEPAGE : www.oksrc.com
[CTW100]
TWO WAY RADIO TRANSPONDER
USER’S OPERATING MANUAL

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※(To use safely
Please, read this manual before operation.
※ This Radio Equipment has been designed for convenient use for many
purposes but care should be taken to avoid wiretapping by another
person. Therefore, you should keep in mind that the conversation
concerning national secrets, industrial information as well as privacy can
be heard by another person.
※ Herein, the following notes describe important information to which
you have to pay attention.
If not treated properly, the faulty situation is expected.
Don't charge Primary-Battery.
Don't take off the seal attached on primary battery. If the seal is
removed, it would be assumed as valid date has expired.
Don't expose battery close to the fire. There is a danger of an
explosion.
Don't expose battery to the temperature more than +70˚C. There is
a danger of an explosion.
Don't expose battery to the temperature less than -30˚C. It can be
discharged.
Don't touch Battery with wet materials.
Don't make the battery to be short-circuit.
When use the jack for earphone, it should be tighten by the screw
bolt or it can't be watertight.
This equipment is designed to be watertight. If it is disassembled at
your discretion, it can't be watertight and not guaranteed also.
RECOMMENDATIONS AND SAFETY NOTICES

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INDEX
Ⅰ. INTRODUCTION.....................................................................................................5
1.1 Overview..........................................................................................................5
1.2 Feature .............................................................................................................5
1.3 Composition ..................................................................................................6
1.4 Specification ..................................................................................................7
Ⅱ. CONTROLS INSTRUCTION................................................................................8
2.1 Description of each Component..........................................................8
2.2 Display on LCD Panel.............................................................................11
Ⅲ. GENERAL OPERATION .....................................................................................12
3.1 Power ON/OFF ..........................................................................................12
3.2 Channel Selection ....................................................................................12
3.3 Squelch Level Adjustment....................................................................13
3.4 TX power level Selection.......................................................................14
3.5 Transmition .................................................................................................14
3.6 Reception.....................................................................................................15

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3.7 Receiving Function Check ....................................................................15
3.8 Volume Level Adjustment ....................................................................15
Ⅳ. SETUP FOR OPTIONAL FUNCTIONS .........................................................17
4.1 TX Power Level..........................................................................................17
4.2 KEY Locking ................................................................................................18
4.3 Battery Save Mode ..................................................................................19
4.4 Dual Watch .................................................................................................20
4.5 Beep Establishment.................................................................................21
4.6 Squelch Level .............................................................................................23
4.7 Location Indication..................................................................................23
Ⅴ. MAINTENACE.......................................................................................................25
Ⅵ. SECONTARY BATTERY & CHARGER ..........................................................27
6.1 Secondary Battery....................................................................................27
6.2 Charger .........................................................................................................27

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Ⅰ. INTRODUCTION
1.1 OVERVIEW
CTW100 is a two-way radiotelephone for use on-board and on-s ene
ommuni ation that is one of equipment onsisted in the GMDSS. This uses
19 simplex hannels whi h are VHF frequen y assigned to international
maritime mobile servi e.
Frequen y rate of those hannels is 156.300MHz ~ 156.875MHz.
Ch15(156.750MHz) and Ch17(156.850MHz)are distri ted under 1W of
radiated power followed by Radio Regulations - S.18. Ch70, used for
ex lusive digital sele ted all for distress, Ch87(AIS 1), Ch88(AIS 2) of
global Automati Identifi ation System, and distri ted Ch75 and Ch76 for
maritime use are ex luded of using frequen y on CTW100.
CTW100 is designed to omply with IMO(International Maritime
Organization) Resolution - A.694(17), A.762(18)and A.809(19). It is also
omply with Korean radio equipment standard, maritime radio navigation and
equipment te hni al stand, and type approval and registration.
1.2 FEATURE
(1) Using of the synthesizer ontrolled by mi ro omputer enables the higher
frequen y stability maintained at any hannel and a urrently programmed
frequen y an be modified to different one by simply programming.
(2) External MIC/Speaker an be atta hed.
The hook on the rear of the equipment also makes flexible to use it free
fixing at a onvenient pla e.

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(3) Both of primary and se ondary batteries were designed to be mounted
and separated easily.
(4) All of a tive devi es have a long life y le and robust hara teristi s
under various environment onditions at the expense of employing
semi ondu tors and spe ial ICs.
(5) Small lightweight and easy-to-use stru ture makes the Equipment
apable of being brought and operated easily by unskilled personal, even
wearing gloves.
(6) The equipment is watertight to a depth of 1 m for at least 5 min and not
unduly affe ted by seawater or oil.
(7) Basi olor of the equipment is a learly visible yellow olor identified
easily, even at a dark pla e.
(8) A primary battery have suffi ient apa ity to ensure 8 hours operation at
its highest rated power with a duty y le of 1:9 and a shelf life of at least 3
years.
1.3 COMPOSITION
Basi equipment (CTW100) is omposed of the following omponents:
(1 Transceiver
(2 Antenna
(3 Primary Battery(Lithium Battery
(4 Secondary Battery(Ni-Mh Battery

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(5 Battery Charger(Fast
(6 Recharge Adapter
(7 Belt Clip
(8 User Manual
Also Following options an be provided on ustomer's hoi e
(1 External Mic/Speaker
(2 Secondary Battery(Ni-Mh Battery
(3 Bluetooth Dongle
1.4 SPECIFICATION
Frequency range 156.300 ~ 156.875MHz
Regular Output Power HIGH - 3.0W / LOW - 0.5W
Radio Wave Type 16KOF3E
Communication Methods
Simplex
Usable Channels 19 Channels
Channel Space 25kHz
Warming Up Time Within 5 Se
Supplied Voltage 7.4V(DC)
Operating Time Over 8 Hour (TX 10%, RX 10%, standby 80%)
Operating Temperature -20°C~ + 55°C
Water Resistance ontains not less than 5 min at 1m depth
Dimension 51(W)× (33D)× 104(H)mm
Weight Primary Battery Installed - 250g
(Main-body: 163g, Battery: 87g)
Se ondary Battery Installed - 280g
(Main-body : 163g, Battery : 117g)

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Ⅱ. CONTROLS INSTRUCTION
2.1 DESCRIPTION OF EACH COMPONENT
(1 Antenna
Used to emit radio frequen y power
(2 PTT Key
For transmitting press the PTT(Press-to-talk) button and then ommuni ate.

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(3 SQ LEVEL selection / Receiving Check Key
Used to swit h of SQ LEVEL
Used to onfirm re eiving fun tion to the equipment.
Press and hold this key over 2se onds to monitor an appropriate hannel
() with beep sound.
To stop the fun tion, press the key on e again.
(4 High/Low Key
Used to sele t an output power level either High(3W) or Low(0.5W).
(5 Up Key
Allow hanging urrent hannel upward to sele t a desired hannel number
dire tly.
It also ould be used for hoosing an alternate establishment from menu.
(6 Enter Key
Permit to enter into optional menu and to ensure a sele ted hannel or
established item from menu.
(7 Down Key
Allow hanging urrent hannel downward to sele t a desired hannel
number dire tly.
It also ould be used for hoosing an alternate establishment from menu.
(8 LCD
Indi ates hannel number, urrent status of battery, sele ted fun tion, et .

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(9 Microphone
When transmitting, the mi rophone shall be positioned at the distan e of
5~7 m from your mouth.
(10 Speaker
Lo ated on the upper front of the equipment that has output fun tion of
re eived voi e.
(11 External Earphone/MIC and Programming Jack Socket
External EAR/MIC an be onne ted via this ja k.
If this has been onne ted, internal mi rophone and speaker are not
a tivated. It is also able to use as harging terminal.
(12 Power on / off and Volume Control Switch
Used as ON/OFF swit h. When power had been turned ON, it an be used
for adjusting a sound level.
(13 LED
Indi ate transmitting/re eiving status by red and green olor
orrespondingly.
(14 CHANNEL.16
Press the key to allow hanging to Ch.16 instantly.