ICOM IC-M126DSC Owner Manual

 VHF MARINE TRANSCEIVER
(U.S.A. version)
C—M126DSC
Icom Inc.
IN CASE OF EMERGENCY
hannel 16
ICE ON C
tress call by voi
IS
transmit your d
,
Or
contact other vessels
istance,
res ass
If your vessel requ
ing digital
tress call usi
IS
d
ing a
and the Coast Guard by send
hannel 70
ingonc
ive call
select
TABLE OF CONTENTS
IN CASE OF EMERGENCY ------------—i
TABLE OF CONTENTS 0000000000200022008 il
; IMPORTANT 060002000040 000000000021200000000 Mi
EXPLICIT DEFINITIONS -=----=--==-=--"- i
CAUTIONS onsccenrcaocanrracacoonarenccaces li
1 OPERATING RULES oconcroceroracanmaroe 1
2 PANEL DESCRIPTION ------------- 2-5
E Front panel 020000000000000222200000000088 2
= Function display cevsessssenssessanncens 4
3 BASIC OPERATION ---------------- 6-9
| N Channel selection 2.0.0... 02.2000002..00 6
a Receiving 20002200008000000005020200205088 8
a Transmitting 000000000000000220200080000008 8
4 SCANS 000020000 0000040200020008 но... 10-13
Ш General 000000002000000000402000020000000 10
N Weather alert 12
E Dualwatch/tri-watch-------====-===-- 13
5 DIGITAL SELECTIVE
CALLING -------e=e=ee0erererenoneco> 14-19
B General en... 00000004000000000400050000008 14
HM Distress call (without UX-112) +++ 15
HM Distress call (with UX-112) ++--===-- 16
E Al! ships call (TX)--==-=eee=eeeeenoe— 17
E All ships call (RX)
{UX-112 required) ++<<<"""""## 18
M Sensor distress cali (TX)------===- 19
M Individual call (RX) |
(UX-112 required) +++" 19
HN Distress call (RX)
(UX-112 required) Pp 19
HM Distress relay call (RX)
(UX-1 12 required) ....00002000000000000000 7 9
6 MEMORY AND CALL CHANNEL
PROGRAMMING -----=--=--==e==....- 20
Hu Memory channels --.-<<<<<"<><..-- 20
E Call channel: ооелеооооеоолеооео оо 20
7 OTHER FUNCTIONS -----=--=-- *21-25
Ш Hailer орегайоп FE. 21
MM Intercom operation +----========="=-- 22
E Automatic fog horn--=-=============- 24
M internal speaker ON/OFF-=-=----- 25
EM Backlight intensity --=-=-==-======-=-- 25
8 SET MODE -+---<<=e000ncerecooonnoo> 26-30
EN Entering SET mode... 26
9 CONNECTIONS AND |
MAINTENANCE - -------=e==-=e.... 31-37
NE Unpacking +.orocereocencacansonuanccces 31
E Additional requirements ----------- 31
EH Connections--+……>----->-> 32 .
E Mounting the transceiver------=--- 36
H Antenna + 36
E Resetting the CPU ----========-==-=- 37
E Cleaning e eroccooororcocarecacacarereraes 37
E Fuse replacement 0000020000000200002 37
a Backup battery e reesccsanerancancanos 37
10 OPTIONAL UNIT
INSTALLATIONS ---============- 38-39
- M Removing/replacing the case---- 38
M UX-112 (DSC DECODER UNIT) -------38
EH UT-74/UX-110 |
(VOICE SCRAMBLER UNITS) -=-=<=-==-- 39
№ UX-95 (RELAY INTERFACE UNIT) --+- 39
11 TROUBLESHOOTING -----+---- 40
12 VHF MARINE CHANNEL LIST ---41
13 SPECIFICATIONS -----------ee.e...- 42
14 OPTIONS --------=ece0000ocoareononaca. 43
IMPORTANT
READ ALL INSTRUCTIONS carefully and com-
pletely before using the transceiver.
SAVE THIS INSTRUCTION MANUAL - This
instruction manual contains important safety and operating
instructions for the IC-M126DSC.
YOU MUST HAVE a DSC vessel ID in order to operate
the DSC functions of the transceiver. See your Dealer for
details.
EXPLICIT DEFINITIONS
The following explicit definitions apply to this instruction
manual.
Equipment damage may occur.
If disregarded, inconvenience only. No
risk of personal injury, fire or electric
shock. |
CAUTIONS
NEVER connect the transceiver to more than a 16 V DC
power source or an AC outlet. This will ruin the transceiver.
AVOID using or placing the transceiver in direct sunlight or
in areas with temperatures below — 20 °C (= 4 °F) or over
+ 60°C (+140°F).
KEEP the transceiver out of the reach of children.
KEEP the antenna cable and DC power cable as far away
as possible from electrical pumps, generators and other
electronic instruments to prevent instrument malfunctions.
KEEP the transceiver and microphone at least 1 meter
away from your vessel's magnetic navigation compass.
BE CAREFUL! The heatsink will become hot when trans-
mitting continuously for long periods. |
DO NOT use any thing other than your fingertips to push
the front panel switches, as the switches could be dam-
aged.
e PRIORITIES
1) Read all rules and regulations pertaining to priorities and
keep an up-to-date copy handy. Safety and distress
calls take priority over all others.
2) You must monitor channel 16 when you are not oper-
ating on another channel.
3) False or fraudulent distress calls are prohibited under
law. | |
* PRIVACY
1) Information overheard but not intended for you cannot
lawfully be used in any way.
2) Indecent or profane language is prohibited.
* RADIO LICENSES
(1) SHIP STATION LICENSE
When your craft is equipped with a VHF FM transceiver,
you must have a current radio station license before using
the transceiver. It is unlawful to operate a ship station
which is not licensed. |
OPERATING RULES
Inquire through your dealer or the appropriate government
agency for a Ship-Radiotelephone license. This license
includes the call sign which is your craft's identification for
radio purposes.
(2) OPERATOR'S LICENSE
A Restricted Radiotelephone Operator Permit is the license
most often held by small vessel radio operators when a
radio is not required for safety purposes. You can usually
obtain this permit by mail.
The Restricted Radiotelephone Operator Permit must be
posted near the transceiver or be kept with the operator.
Only a licensed radio operator may operate a transceiver.
However, non-licensed individuals may talk over a trans-
ceiver if a licensed operator starts, supervises, ends the call
and makes the necessary log entries.
A current copy of the applicable government rules and
regulations is only required to be on hand for vessels in
which a radiotelephone is compulsory. However, even if
you are not required to have these on hand it is your
responsibility to be thoroughly acquainted with all pertinent
rules and regulations.
1 нии
— В
BE ©? PANEL DESCRIPTION
E Front panel
WEATHER CHANNEL SWITCH [WX-WX ALERT]
Selects weather channels. (p. 7)
Activates weather alert as the secondary function. (p. 12)
DUAL/TRI-WATCH SWITCH [DUAL-SCAN]
Activates dual or tri-watch. (p.13)
Activates a scan as the secondary function. (p. 11)
| _ EHHH
- (1 A — Ll | ‘Сом VHF_ MARIN |TRAN:
HAILER/INTERCOM SWITCH [HL/IC-A. FOG] и ``
Toggles between the hailer and intercom function. (p. 21) 1 / N a
Activates the auto fog horn as the secondary function. -
(p. 25) |
FUNCTION SWITCH [F] a | | Asloc sch — WXALEAT
Activates the secondary function of switches. | | a ) DUAL (wx )
Push other switches within 5 secs. of pushing [F]. \ / |
/ LOCK OUT MW
| @ (mo) (mn)
HIGH/LOW POWER SWITCH [HI/LO-LOCK OUT] 1 d (©) (pe) СО
‘Toggles between high and low output powers. (p. 8) = —
Locks out the selected channel as the secondary func-
tion. (p. 11) |
MEMORY CHANNEL SWITCH [MR-MW]
| Selects memory channels. (p.7)
Programs channels into memory as the secondary func-
tion. (p. 20)
PANEL DESCRIPTION 2
__| Toggles between international and USA channels. (р. 6)
INT/USA CHANNEL SWITCH [INT/USA-SCRM]
Activates an optional voice scrambler unit as the second-
ary function. (p. 8)
: ex =)
ISCEIVER |IC-M126 DSC
WA en. ON
SQUELCH CONTROL [SQUELCH] |
Rotate clockwise to eliminate audio noise. (p. 8)
Activates built-in attenuator when rotated deep clockwise.
VOLUME CONTROL [VOLUME](PWR PUSH-ON)
Push to turn power ON and OFF. (p. 8)
Rotate to adjust the audio output level. (p. 8)
scan
INTUSA ( + )
gi
EMERGENCY SWITCH [EMER]
Selects channel 70 instantly; transmits a distress call
when pushed and held for 5 secs. (p. 15)
€
С
2%
DIMMER
CALL ( Chae )
CHANNEL SELECTOR [CHANNEL]
Selects an operating channel. (pgs. 6—7)
CHANNEL 16 SWITCH [CH16-DsC]
Selects the channel 16 mode. (p. 6)
Sends an “all ships call” as the secondary function.
(Р. 17)
CALL CHANNEL SWITCH [CALL-DIMMER]
Selects the call channel. (p. 7) |
Adjusts the display and control/switch backlighting inten-
sity as the secondary function. (p. 25) |
- |
2 PANEL DESCRIPTION
Ш Function display
LOW POWER INDICATOR
Shows that low output power is selected. (p. 8)
LOCKOUT CHANNEL INDICATOR
Shows the selected channel is a lockout channel. (p. 11)
TRANSMIT INDICATOR
Appears while transmitting. (p. 8)
CHANNEL INDICATOR
Shows the operating channel.
CALL CHANNEL INDICATOR
Appears when the call channel is selected. (p. 7)
S/RF INDICATOR
Shows the relative signal strength while receiving. (p. 8)
Shows high, or low output power selection while trans-
mitting. (p. 8) |
WEATHER ALERT INDICATOR
Indicates the weather alert function is activated. (p. 12)
FUNCTION INDICATOR
Appears when [F] is pushed, and indicates a secondary
function can be activated.
MODE INDICATORS
“USA” shows USA channels are selected. (p. 6)
“INT” shows international channels are selected.
(p. 6)
VOICE SCRAMBLER INDICATOR
Appears while the optional voice scrambler is activated.
“WX” shows weather channels are selected. (p. 7)
No indicator appears when the channel 16 mode or
channel 70 mode is selected. (pas. 6, 15)
PANEL DESCRIPTION 2
DUPLEX INDICATOR
Shows the selected channel is a duplex channel.
“ACK” appears when acknowledgement is received in
DSC INDICATORS
“REL” appears when a distress relay call is received.
(p. 19)
response to a distress call. (p. 16)
“RCV” appears to indicate reception of a DSC signal.
(pgs. 18-19)
MEMORY INDICATOR
Appears while in memory mode. (p. 7)
DUAL/TRI-WATCH INDICATORS
Blink while dual/tri-watch is activated. (p. 13)
“DUAL” blinks during dualwatch.
“DUAL” and “ W ” blink during tri-watch.
[REL ACK REVIT
EDUAL 7: Nd
EA <a, av, >
SCAN INDICATOR
Blinks while a scan is
activated. (p. 11)
AUTO FOG HORN INDICATORS
Show the auto fog horn function is activated. The number
of indicators shows the selected fog horn type. (p. 24)
NMEA INDICATOR
Appears when NMEA devices are connected. (p. 35)
TIME/DISTRESS INDICATORS
Indicate the time. (p. 28)
“4ST” or “ALL” appear for some of the DSC function
operations. (pgs. 14-19) |
MEMORY NUMBER INDICATOR
Shows the selected memory number. (p. 7)
“b” is indicated when the connected battery capacity is
exhausted.
|
E 3
|
H Channel selection
© CHANNEL 16
Channel 16 is the distress and calling
channel. It is used for establishing
initial contact with another station and
for emergency communications.
While standing by you are required to
monitor channel 16.
Push
[CHANNEL] is deactivated.
/ «у
«р». «т, Er,
641 (|
i JL | j
Only “16” Local time
appears when appears when
[CH16] is an optional
pushed. UX-112 is
installed.
BASIC OPERATION
{USA CHANNELS
There are 58 USA channels. Estab-
lish initial contact on channel 16, then
move to an agreed upon channel for
communications. Some channels
can only transmit at low power (see
the channel list, p. 41).
Push nce or
INT/ USA twice,
then rotate [CHANNEL] to select a
channel,
LILA
* JL]!
|
=
indicates that a
channel in the
U.S.A. channel
group is selected.
{INTERNATIONAL CHANNELS
There are 85 international channels.
As with the USA channels, establish
initial contact on channel 16, then
move to an agreed upon channel for
communications. Some channels can
only transmit at low power (see the
channel list, p. 41)
о опсе ог
INT/USA ) — twice,
then, rotate [CHANNEL] to select a
channel.
Indicates that a
channel in the
international channel
group is selected.
O WEATHER CHANNELS
In North American waters, there are
10 NOAA weather channels which
broadcast local weather forecasts
and issue weather advisories. These
channels are for receive ONLY.
then, rotate [CHANNEL] to select a
channel.
II
и (МЫ
|
Indicates that a
weather channel is
selected.
{CALL CHANNEL
The call channel is used to store your
most often-used channel for quick
recall. In addition, the call channel is
monitored during tri-watch. The de-
fault for the call channel is channel 9
(the non-commercial calling channel).
Push
Indicates that the
call channel is
selected.
BASIC OPERATION 3
{MEMORY CHANNELS
24 memory channels are used to store
often-used channels for easy recall
and scanning. After resetting the CPU
(p. 37) only memory channel O is
programmed.
Push
then, rotate
[CHANNEL] to select a
memory channel.
INT
(Г — ==
uu
Indicates that a
memory channel is
selected.
>|
|
NNW
3 BASIC OPERATION
MM Receiving
(M Push [VOLUME] to turn power ON.
@ Rotate [SQUELCH] fully counterclockwise.
@ Adjust [VOLUME] to a suitable listening level.
@ Rotate [SQUELCH] clockwise until the audio noise disap-
pears.
© Select the desired channel. See pgs. 6-7 for details.
7 NOTE: When speaker OFF is selected in SET mode, the
front panel speaker is disengaged.
e When a signal is received:
- The squelch opens. - = Ir
- Audio is emitted from the speaker. = ;
- The S/RF indicator shows relative
signal strength.
< RECEIVING A SCRAMBLED SIGNAL
In order to understand scrambled signals, an optional
UT-74 or UX-110 must be installed (see pgs. 38-39).
Push [F], then [INT/USA*SCRM] to turn the voice scram-
bler ON.
e “SCRM” appears in the display.
* See p. 27 for details on setting a scramble code.
e Repeat the above step to turn the function OFF.
NM Transmitting
Before transmitting a signal, read cail procedures on p. 9.
(1) Select an operating channel. See p. 6-7 for details.
(9) Push [HI/LO] to select transmit output power. -
e “LOW” appears when low output power is selected.
e Transmission is restricted on some channels. See p. 9.
e For privacy activate the optional voice scrambler function
(see left below) and set a scramble code (p. 27).
(3) Push and hold the PTT switch to transmit.
e “EJY” andthe RF indicator appear.
(4) Speak into the microphone at your normal voice level.
e Do not hold the microphone too closely to your mouth or
speak too loudly. This may distort the transmit signal.
© Release the PTT switch to receive.
CALL PROCEDURES
You must identify yourself when you transmit and you |
must respect time limits.
1)
2)
3)
4)
5)
Give your call sign each time you call another vessel
or a coast station. If you have no call sign, identify the
station by giving the vessel name and the name of the
license.
Give your call sign at the end of each transmission
that lasts more than 3 minutes.
You must pause and give your call sign at least once
every 15 minutes during long ship-to-shore calls.
Keep your calls short (less than 30 sec.). Wait 2
minutes before repeating a call.
Unnecessary transmissions are not allowed.
BASIC OPERATION 3
TRANSMITTER RESTRICTIONS
| Momentary Co
13 high power* No restriction
15 Receive only Low power only
17 Low power only
Momentary сле
67 | high power* No restriction
70 Low power only (no voice)
Weather channels
Receive only
*Momentary high power
On these channels, transmissions using high power are mo-
mentarily possible. To transmit using high power, push and
hold [HI/LO] and [PTT].
TIME-OUT TIMER (TOT)
The transceiver has a TOT to prevent continuous, long
transmissions. The transceiver automatically returns to re-
ceive when you transmit for more than 3 min. continuously.
CAUTION: When “€E3” blinks during transmission at
high output power, there is an antenna problem.
Stop the transmission immediately; then, check the fol-
lowing:
- Is an antenna connected?
- Is the antenna connector properly tightened?
- ls the cable between the antenna and the transceiver free of
cuts or shorts?
- Is the antenna correctly installed?
- Is the antenna free from bends or cuts?
© |
I |
— KC SCANS
EN General
The IC-M126DSC has normal and priority scans (selectable 8 different scans (with or without lockout channels) are
in SET mode) for each group of channels. In addition, — possible with the transceiver as follows:
lockout channels can be set for any of these scans. |
USA normal scan International normal scan Weather normal scan Memory normal scan
zZ |
<
3
- ( ch2 ) ( M23 )
=
e Ceh3) (CM 22 ) progam-
o »
> “EY D
International priority scan Weather priority scan Memory priority scan
«= M 23 has
© prog
u med.
E Y @ ©
--
с | D)
о e
= /
o.
“(L) ” shows that the channel is a lockout channel. e Normal scan pauses on a signal until it disappears.
+ Transmitting (pushing PTT) cancels the scan. e Priority scan becomes dual watch while receiving a signal
and pauses for any signals on channel 16.
* SCAN START/STOP
Select normal or priority scan in SET mode, then:
(D Select the desired channel group.
e To select U.S.A. or international channels, push [INT/USA]
once or twice. |
e To select weather channels, push [WX].
e To select memory channels, push [MR].
@ Lock out or unlock channels depending on your pref-
erence. (See below.)
@ Rotate [SQUELCH] clockwise until the audio noise
disappears. :
SCANS 4
(4) Push [F]; then, push [DUAL*SCAN] to start the scan.
e The scan indicator (a dot) blinks while scanning.
® When a signal is received, scan pauses until it disap-
pears. )
e When priority watch is selected in SET mode, dualwatch
starts. | |
® Push [F] twice to stop the scan and remain in the same
channel group. |
e Push [CH16] to stop the scan and select channel 16.
e Transmitting (pushing [PTT]) also stops the scan.
PROGRAMMING A LOCKOUT CHANNEL
(D Select the desired channel group.
O) Select the channel to be locked out using the channel
selector. —
(3 Push [F]; then, push [HI/LO*LOCK OUT] to lockout the
channel.
e “[0)" appears.
@ To cancel the lockout, repeat step 3).
e “ [)" disappears.
[EXAMPLE]: Locking out USA channel 06.
| LOCK OUT
(@ +
FÉ | nC
= LIL = LIL
[EXAMPLE]: Locking out memory 15.
LOCK QUT
(@) + (io)
=, o E,
4 SCANS
E Weather alert
When the IC-M126DSC catches a weather alert tone on a
weather channel while scanning, the transceiver sounds an
alert beep to indicate that an emergency weather report is
on the air.
* TURNING THE FUNCTION ON AND OFF
(M Push [F].
e “ F)" appears.
@ Push [WX-WX ALERT] to turn the func- 4
tion ON. y Г
e “ ¥ "(weather alert indicator) appears.
@ To turn the function OFF, repeat steps weather alert
“ ® and @® indicator
e “ Y” disappears.
— The weather alert function is available only while scanning
channels which include weather channels. The weather
alert does not function while scanning non-weather chan-
nels, even when * Y” appears.
* ACTIVATING THE FUNCTION
(D Turn the weather alert function ON.
e See left for details.
(2) Push [WX] to select weather channels, then, push [F]
and [DUAL-eSCAN] to start weather scan.
e Memory scans can also be used. See CONVENIENT
below. |
(® When the transceiver catches an alert tone on a weather
channel, a 1 sec. beep sounds and the scan automat-
ically stops on the channel to receive the emergency
weather report.
@ To cancel the scan manually, push [F] twice.
NOTE: While scanning on the weather channels with the
weather alert function ON, the scan does not pause for
normal signals (except for signals on ch 16 during priority |
scan).
What is the weather alert tone?
The NOAA weather radio broadcasts are continuous,
pre-recorded broadcasts. In case of a local weather
emergency, the broadcast becomes live. Before this live
broadcast, a warning tone (1050 Hz) is transmitted.
CONVENIENT
If weather channels have been programmed into memory
channels, use a memory scan with the weather function
ON. The scan pauses for signals on USA or international
channels and stops with a beep for an alert tone on
weather channels. |
E Dualwatch/tri-watch
Dualwatch monitors ch 16 while you are receiving another
channel; tri-watch monitors ch 16 and the call channel while
receiving another channel. Select dual watch or tri-watch in
advance using SET mode (see p. 27).
DUALWATCH/TRI-WATCH SIMULATION
Dualwatch
ti
(Ci |
Tri-watch _
Call channel
(programmable)
j [a Lu Pe
= ! Lf l IC
Ll
co
ELIT
e |f a signal is received on channel 16, dualwatch/tri-watch
pauses on channel 16 until the signal disappears.
e if a signal is received on the call channel during tri-watch,
tri-watch becomes dualwatch until the signal disappears.
e To transmit on the selected channel during dualwatch/tri-
watch, push and hold [PTT].
SCANS 4
M Select the desired operating channel.
@ Push [DUAL] to start dualwatch/tri-watch.
e “DUAL” blinks during dualwatch; “DUAL” blink during
tri-watch.
e Tri-watch becomes dualwatch when receiving a signal on
the call channel.
(3) To cancel dualwatch/tri-watch, push [DUAL] again.
e “DUAL” or “DUAL W ” disappears.
[EXAMPLE]: Operating tri-watch on USA channel O7A.
Tri-watch starts.
Push ( DUAL DT ue
(DUAL) USA Li IE!
_ il Г our Signal received
5 uy 11 on call channel.
Signal received
= i on ch 16 takes
= T priority.
Tri-watch
resumes after the
sighal disappears.
E
EE D DIGITAL SELECTIVE CALLING |
H General
Digital Selective Calling (or DSC) is a method of radio
communications involving digital signals rather than the
more conventional method of voice communications. The
advantage of using digital communications over voice
communications is that information (especially useful for
distress calls and other urgent matters) can be pre-
programmed into a radio and transmitted quickly and
accurately. For example, at the push of a switch, a vessels
identity, position (latitude and longitude) and the time, etc.
can be transmitted. Because of the digital nature of the
communications, future implementations of DSC could in-
volve much more detailed information transmission.
The IC-M126DSC comes standard with DSC Class C
capability. This means that the transceiver can transmit a
distress call, containing your vessel's DSC ID and position
(when NMEA navigation equipment is connected) using
DSC signalling on channel 70. |
With the installation of an optional UX-112 DSC DECODER
UNIT, the IC-M126DSC meets U.S. Coast Guard proposal
SC-101, and can receive DSC signals in addition to other
functions. The table at right illustrates the differences
between the IC-M126DSC's capabilities with and without
the optional UX-112.
Distress call (Tx) O
PC TE тет тсч ое вечен еее
«ототтот.=.. сосен евеоне вл ы Чавеса тент оные щ
=. а еее отн о о ве еее ее етом Я = AE === == ово Бове тот ое вон с ты ны мч
| Sensor distress call (Tx)t
All ships call (Tx) ©
©
Distress call (Rx) | —
Distress call acknowl-
edgement (Rx)
All ships call relay (Rx) —
All ships call (Rx) —
Individual call (Rx) —
@ = Yes
— = No
*When NMEA equipment is connected. See pgs. 32, 33, 35.
tWhen sensors (eg. for fire, water, etc.) are connected. See pgs.
32, 35.
J Distress call (without UX-112)
In a distress situation, use the transceiver's built-in DSC
capability to transmit a digital distress call on channel 70 to
a shore station.
(M Push and hold [EMER] for 5 secs.
e The transceiver automatically selects channel 70 and an
alert beep sounds 5 times.
e After 5 secs. have elapsed, the transmit indicator briefly
appears to indicate that your signal is being transmitted
and, “dST” appears.
(2) Release [EMER].
e Channel 16 is automatically selected.
@ Wait for a reply on channel 16.
@ While pushing [PTT], transmit your distress message to
the responding party.
oe When [PTT] or [CH16] is not pushed within 3.5 mins. of
sending a DSC distress call, channel 70 is automatically
selected and your DSC signal is retransmitted.
DIGITAL SELECTIVE CALLING 5
NOTE: When à navigation receiver with NMEA0183
output capability is connected, your vessel's position is
automatically transmitted with your DSC distress signal.
See p. 35 for connection details.
[EXAMPLE]: Transmitting a DSC distress call.
Push and | il
hold wo fA
for 5 secs y
“II Distress call is
(Е Mí 157 transmitted on
Noreply | E -t I 8 channel 70.
and [PTT] :
is not : Y
pushed. Ти Channel 16 is
| - - 7 | automatically
/ Ll d 5! | selected.
Y
= { Г When a reply is
Pushand |B (EU JT | PES
hold [PTT]. |
/ i Distress message
= - - is transmitted b
E IO 457 | vi ;
© To remove “dST” from the function display, turn power
OFF, then ON again.
5 DIGITAL SELECTIVE CALLING
Hl Distress call (with UX-112)
When transmitting a DSC distress call to a shore station
with an optional UX-112 installed, the IC-M126DSC reacts
in the following manner.
(M Push and hold [EMER] for 5 secs.
e The transceiver automatically selects channel 70, the time
is displayed, an alert beep sounds 5 times and any con-
nected external alarm devices are activated.
@ Release [EMER].
e When a shore station (or another vessel with DSC encod-
ing/decoding capability) receives your distress call, an
acknowledement is transmitted back to you and "ACK" and
“RCV” appear momentarily. After that, the transceiver
automatically selects channel 16.
o If no acknowledgement is received after 25 secs., the
transceiver automatically selects channel 186.
@ Wait for a voice reply on channel 16.
@ While pushing [PTT], transmit your distress message to
‘the responding party.
e When [PTT] or [CH16] is not pushed within 3.5 mins. of
sending a DSC distress call, and no “ACK" is received, ch
70 is automatically selected and your DSC signal is
retransmitted.
© To remove “dST” from the function display, turn power
— OFF, then ON again.
Push and
hold
for 5 secs.
No repiy
‘and [PTT] :
is not
pushed.
Push and
hold [PTT].
ny) В
=
À
= = = = = = = «= = = = = © = = =
ny
=
1
HE
-
$i
[EXAMPLE]: Transmitting a DSC distress call. -
Distress call is
transmitted on
channel 70.
When a DSC
acknowledgement
is received.
Channel 16 is
automatically
selected.
When a voice
reply is received.
Distress message
is transmitted by
voice.
DIGITAL SELECTIVE CALLING 9
Ш А! ships call (TX)
Large ships use channel 70 as their “listening channel.”
When you want to contact one of these ships, use the “all
ships call” function.
then
[EXAMPLE]: “All ships call” (TX) using U.S.A. ch 11.
Simplex channel
(Select a simplex channel to communicate on. Y AN usa ! ! is selected.
e Some ‘A’ channels (eg. channel 88A) cannot be used. | |
@ Rotate [SQUELCH] clockwise until the audio noise {3
disappears.
@ Push [F], then push and hold [CH16+DSC] for 5 secs. psc
e poi 70 is automatically selected, “ALL” appears on the (e) and = >” in _ All ships call S
display and the channel data you selected in (1) is trans- lor E” Jul HLL
- mitted at low power. ;
e When channel 70 is busy, the transceiver waits until the Push and hold
channel clears, and then sends the "all ships call”; when [PTT]
you want to cancel the function, push any key. / Voice call on the
specified channel.
USA
т
—
ne
X
e After transmission, the previous channel is selected.
@ Push and hold [PTT] to communicate your message to
the responding party.
NOTE: An “all ships call, " after transmitting a distress
call, includes emergency data. In this case, the “all
ships call” acts as a distress call and alerts other
NV
essels to your situation.
PS
5 DIGITAL SELECTIVE CALLING
E All ships call (RX) ue
When an optional UX-112 is installed, the IC-M126DSC is [EXAMPLE]: “Ali ships call” (RX).
able to receive an “all ships call” transmission. However, to |
do so, channel 70 must be monitored. |
then Low == а Channel 70 is
(1) Select channel 70. | | O USA IL ! | selected.
@ When receiving an “all ships call,” a specified channel
and “ALL"/“RCV” appear on the function display. | |
* The transceiver automatically selects the specified channel.
(9) Wait for a voice call on the specified channel. when receiving mir
@ If you are contacted by voice, push [PTT] to reply. all.” Ships wr LE
e “RCV” and “ALL" disappear.
e Some other switches also remove "RCV" and “ALL” from
wv] The specified
channel appears.
the display.
” <= av] Voice
7 NOTE: When receiving an “all ships call” from a = y 5 o communication
77 = NT Ly Li MLL received on the
7 vessel that has previously transmitted a DSC distress specified
7 call, emergency beep alerts sound. PTT and hoid | channel.
ir ‘Transmitting in
= reply to the voice
ni LIE communication.
HM Sensor distress call (TX)
When sensors are connected (see p. 35), the ¡C-M126DSC
will alert you to abnormal conditions eg. fire, water ingress,
etc.
When a sensor detects an abnormal condition, the trans-
ceiver emits alert beeps for 25 secs. After 30 secs. have
elapsed, a DSC distress call is transmitted on channel 70.
See pgs. 15-16 for DSC distress call details.
e When connected, external alarm devices are activated.
UX-112
E Individual call (RX) Ux-112
The IC-M126DSC is capable of receiving DSC signals
addressed to your vessel's DSC ID, while you are moni-
toring channel 70. |
© “RCV” and “Ind” appear.
e The transceiver automatically sends an acknowiedgement
and selects the specified channel.
5. “fi - г
Eu w 01 tad
DIGITAL SELECTIVE CALLING 5
HM Distress call (RX) e
When the UX-112 is installed and you are monitoring
channel 70, the IC-M126DSC can receive DSC distress
calls sent from shore (or ship) stations.
=. > “ul — Ir Rev
E” IL (Наб Г
e When receiving a DSC distress call, emergency beep alerts
sound.
Hl Distress relay call (RX) 7?
When the UX-112 is installed and you are monitoring
channel 70, the IC-M126DSC can receive DSC distress
relay calls which have been relayed through a shore (or
ship) station. In this case, the following display appears
briefly before channel 16 is automatically selected.
=" “i IE” RCV
=" (Li | (LS d5 E
* When receiving a DSC distress relay call, emergency beep
‘alerts sound.
I
HEN O MEMORY AND CALL CHANNEL PROGRAMMING
Hl Memory channels
© To program:
© Push [F] + [MReMW].
e “CEI” blinks. wa (Ц 7
e [MR-MW] must be pushed within
5 secs. of pushing [F] .
“NI/,
9 Rotate the channel selector to a EBC
select the desired memory. и
® Select channel group (U.S.A, A F-
international, weather). (See “+
pgs. 6-7) - 71
e The channel number blinks.
@ Rotate the channel selector to >
> 4 (17 es
select the channel you wish to wg” (a 3
program. 7 —
® Push [MR] to complete the “1 | co
programming. USA Г I= 3
e Memory mode is automatically
selected.
® To program additional memo-
ries, repeat from step M.
NOTE: Output power can be programmed in a memory.
Push [HI/LO] while the channel number blinks to program.
E Call channel
© To program:
(M Push [F] + [MR] (the same as
memory programming step D).
@ Rotate the channel selector to
select the call channel.
e “C” appears in the display.
e The call channel appears be-
tween memory channels 0 and
24,
@ Push [INT/USA] once or twice
to select international or USA
channels; push [WX] to select
weather channels.
e The channel number blinks.
@ Rotate the channel selector to
select the channel you wish to
program.
©Push [MR] to complete the
programming and select the
call channel.
«=, “NED,
SW, a, NS
(El све
INT Li E
|
H Hailer operation
The IC-M126DSC has a 2-way hailer function for voice
amplification and reception over the loudspeaker, making it
unnecessary to leave the bridge to hear a hailing party.
Di) Operating channel
w PA cif (the decimal point indicates “A”
= LLL «—— of the operating channel.)
|
| o The external speaker emits your amplified voice and receives
an answer from another vessel.
e Transmitting is impossible during hailer operation.
e The hailer function can be operated during dual/tri-watch.
OTHER FUNCTIONS /
* PREPARATION
(M) Connect an external speaker as illustrated on p. 33.
@ When you need to have more power (up to 30 W),
connect an optional UA-1 AUDIO AMPLIFIER. (p. 34)
e In this case, an optional UX-95 RELAY INTERFACE UNIT must
be installed to control the UA-1 power synchronized with
transceiver's power.
* OPERATION | |
(M) Turn the transceiver and UA-1 (when connected) powers
ON.
@ Push [HL/IC] once or twice. _
e “HL” appears.
@ Push and hold the PTT switch on the microphone and
speak at a normal voice level into the microphone.
e The S/RF indicator shows the hailer output level. To adjust
the level, rotate the channel selector while [PTT] is pushed.
® After releasing the PTT switch you can hear the re-
sponse through the hailer speaker. |
(6) Push any channel group switch (мух, [MR], [USA/INT], [CALL],
[EMER], [CH16]) to cancel the hailer function.
7 OTHER FUNCTIONS
E Intercom operation
The intercom function allows you to talk to the deck from
the cabin. When you do not require the hailer function, you
can use 2 separate intercoms.
Operating channel
Un (the decimal point indicates “A”
wm | LILI, æ—— of the operating channel.)
Odo
Ne
e The external speaker functions as a speaker and a micro-
phone.
e Transmitting is impossible during intercom operation.
e The intercom function can be operated during dual/tri-watch.
PREPARATION
Connect an external speaker and an intercom switch as
illustrated on p. 34. |
* OPERATION FROM THE TRANSCEIVER
M Turn power ON.
@ Push [HL/IC] once or twice.
e “IC” appears.
@ Push and hold the PTT switch on the microphone and
speak at a normal voice level into the microphone.
e The S/RF indicator shows the intercom output level. To
adjust the level, rotate the channel selector while [PTT] is
pushed.
e To adjust the IC-M126DSC's internal speaker output level,
rotate [VOLUME].
(4 Release the PTT switch to hear a response through the
Intercom speaker.
se The S/RF indicator disappears.
© Push any channel group switch ([WX], [MR], [USA/I NT], [CALL],
[EMER], [CH16]) to cancel the intercom function.
¢ "IC" disappears.
* OPERATION FROM THE INTERCOM
SPEAKER
(M Push and hold the intercom switch and speak into the
speaker. |
@ Keep pushing the intercom switch to receive an answer.
(3) Release the intercom switch to return the IC-M126DSC
to cabin control of the intercom function.
NOTE: While the intercom switch is pushed, “IC” is
indicated in the IC-M126DSC’s function display and only
the intercom function can be used with the IC-M126DSC.
OTHER FUNCTIONS /
« OPERATION WITH 2 SEPARATE
INTERCOMS
~ When you connect two intercom switches and two intercom
speakers to the IC-M126DSC, you can talk to two separate
places such as the deck and the fly bridge.
Connect switches and speakers as illustrated on p. 34
before operating with 2 speakers.
TO OUTPUT FROM INTERCOM-1 SPEAKER
(D Push [HL/IC] once or twice to turn the intercom ON.
(2) Push and hold the PTT switch and speak into the mic.
TO OUTPUT FROM INTERCOM-2 SPEAKER
@ Push [HL/IC] once or twice to turn the hailer ON.
@ Push and hold the PTT switch and speak into the mic.
WHEN SPEAKING FROM THE INTERCOM SPEAKERS
Push and hold intercom switch 1 or 2, then speak into the
speaker as described at left.
NOTE: The hailer function CANNOT be used when you
connect the two intercom speakers.
7 OTHER FUNCTIONS
Hl Automatic fog horn
The automatic fog horn function sounds a horn repeatedly
until the function is turned OFF. 4 horn patterns can be
selected depending on your needs.
The fog horn outputs from the hailer speaker. To use this
function, the hailer speaker must be connected to the
transceiver. See pgs. 33 and 34 for connection details.
TYPE DISPLAY PATTERN USAGE
1 'h В One 5-second blast every 100 seconds. Motor vessel under way.
2 b = Two 5-second blasts every 100 seconds. Motor vessel at anchor. |
Ea a flowed BO | Saitpoat or ing bot under vay.
, Ба [oma sem eres 09 | vesclundrton
NS
7
# The audio frequency of the fog horn is selectable. See |
р. 30 for details on selecting the audio frequency.
—* TURNING AUTO FOG HORN ON AND OFF
M Push [F].
e “ F)” appears.
(2 Push [HL/IC:A.FOG].
e One or more “ m4" appear depending on the fog horn
pattern. | | ВЕ
G To cancel the function, repeat steps (7) and O.
* SELECTING A FOG HORN PATTERN
(M) Push [F].
e “ F) " appears.
@ While pushing [HL/IC*A.FOG], rotate the channel selector
to select the desired fog horn pattern.
e The number of “ meq " shows the selected fog horn pattern.
(3) Release [HL/IC:A.FOG]. |
Hl Internal speaker ON/OFF
When you connect an external speaker and the
IC-M126DSC's internal speaker is not required, the internal
speaker can be deactivated. The internal speaker is turned
ON and OFF in SET mode. For details see p. 29.
OTHER FUNCTIONS 7
M Backlight intensity —
The backlight can be turned ON and OFF, and the intensity
can be selected from 3 levels.
e TURNING OFF THE BACKLIGHTING
O Push [F]. |
e “ (F) ” appears.
(9 Push [CALL+DIMMER] to turn the backlighting OFF.
@ To turn the backlighting ON again, repeat steps
@ and @.
e ADJUSTING THE BACKLIGHT INTENSITY
LEVEL
M Push [F].
e “ F)” appears. |
@ While pushing [CALL*DIMMER], rotate the channel selec-
tor to select the desired level of backlight intensity.
@ Release [CALL*DIMMER].
um 5
SET MODE
E Entering SET mode
SET mode is used to customize operation of the transceiver
to suit your operating needs.
© To enter SET mode:
(M While pushing [F], turn power ON.
e Keep pushing [F] until the initial SET mode display ap-
pears.
-e SET mode is selected.
@ To exit SET mode, push [16] or turn power OFF, then ON
again.
O To select an item:
There are up to 11 items in SET mode (depending on
options installed) that may be adjusted to suit your oper-
ating needs.
M Enter SET mode as above.
@ Push [F] to select the desired item; then rotate [CHAN-
NEL] to select the desired condition.
~ e See the following pages for details on each SET mode
item.
The diagram at right shows
SET mode item and the order
of selection.
N
the default settings for each
Each push of [F] selects a SET mode item in order
<
° ay
SET MODE ITEMS
SCAM |)
1X
|
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=
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=
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9
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‘=,
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En
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UU,
=)
Scramble code (p. 27)
(UT-74/UX-110 required.)
Dualwatch/tri-watch
(p. 27)
Normal/priority scan
(p. 27)
Time — hrs. (p. 28)
(UX-112 required.)
Time — mins. (p. 28)
(UX-112 required.)
Time difference — hrs.
(p. 28) (UX-112 required.)
Time difference — mins.
(p. 29) (UX-112 required.)
Beep tones
ON/OFF (p. 29)
Internal speaker
ON/OFF (p. 29)
Display contrast (p. 30)
Auto fog horn
frequency (p. 30)
SET MODE 8
<> SCRAMBLE CODE
When an optional voice scrambler unit
is installed, the scramble code item
appears as the last selectable item in
SET mode. When communicating
using the voice scrambler function,
remember that all members of your
group must have the scrambler func-
tion ON, and the same scramble code
set.
e 128 codes are available with UT-74 and
16 codes are available with SC-20-450
plus UX-110,
SCAM E J
fi
с
cu
Rotate
[CHANNEL]
a
SCRM L
/
‘=,
pa
с
- Md «т
Rotate
[CHANNEL]
== "Ч = = = = = = = =
SCAM Г.
— ze
Mu
© DUAL/TRI-WATCH
Depending on your preference, you
can select dualwatch or tri-watch.
When dualwatch is selected, [DUAL]
activates dualwatch; when tri-watch is
selected, [DUAL] activates tri-watch.
See p. 13 for details.
Tri-watch (default)
A | -
Livy 3
Rotate
[CHANNEL]
A $ ova -
LiL с
Dualwatch
| Depending on your preference, you
© PRIORITY/ NORMAL SCAN
can select scanning to function as a
normal scan or as a priority scan. See
p. 10 for the differences between
priority and normal scans.
Normal scan (default)
Ny
«в
- mor
Li
Rotate
[CHANNEL]
JC
Sy
“=,
с
'
hod
Priority scan
8 SET MODE
© UTC TIME (HRS.)
When an optional UX-112 unit is in-
stalled, the IC-M126DSC transmits the
time when a DSC distress call is made.
Set the time in UTC (Universal Time
Coordinated — previously called Green-
wich Meantime).
charts or ask your local Icom Dealer for
the UTC in your area. Local time
appears on the function display when
[EMER] is pushed or when channel 16
mode is selected.
LL) { NI
E L060
Rotate
[CHANNEL]
I J | IZ
СЫ :00
A 1
‘ Rotate
[CHANNEL]
Y
E ? A Зил
E 2500
— SC JUL
Refer to marine
O UTC TIME (MINS.)
After setting the hours (previous box),
set the minutes.
e Pushing [MR], sets the minutes to “O ”
=r
"— —
“am
Rotate
[CHANNEL] -
N
Me
-
Rotate
[CHANNEL]
yy
ay [eee
=r
< TIME DIFFERENCE
- (FROM UTC — HRS.)
The time that is sent along with your
DSC distress call is in UTC. Since the
time appearing on the function display
is local time, the transceiver must |
convert UTC time to local time for
display purposes.
+13 hrs.
| A A ра
Г. от
A Rotate
; [CHANNEL]
Y
I | Zu
F Ll Lili
A | Rotate
: [CHANNEL]
Y
L
0 —13 hrs
NOTE: If no value is assigned to
the time difference, the time ap-
pearing on the function display is
in UTC.
NN
SET MODE 8
< TIME DIFFERENCE
(FROM UTC — MINS.)
After setting the time difference from
UTC in hours, it may be necessary in
some areas to set the time difference
in minutes also.
L o
LL GUL
| 2 Rotate
[CHANNEL]
Lo IZ
KO 5015
a
: Rotate
: [CHANNEL]
Y
CEN 859
{> BEEP TONES ON/OFF
Beep tones provide convenient audi-
ble confirmation when switches are
pushed. However, if you wish to turn
the beep tones off, you can do so in
SET mode as follows
Beep tones ON (default)
[1
Ion
y
Rotate
[CHANNEL]
LEN ..
LIN FF
Beep tones OFF
7 NOTE: DSC alert tones and the
7 WX alert tone CANNOT be turned
7 OFF.
{> INTERNAL SPEAKER ON/OFF
When you select an external speaker
and the IC-M126DSC's internal speak-
er is not required, the internal speaker
can be deactivated.
Speaker ON (default)
CCl
fl on
Rotate
[CHANNEL]
LE _-
MI grr
Speaker OFF
NOTE: DSC alert tones and the
7
WX alert tone CANNOT be turned
7 OFF.
8 SET MODE
© FUNCTION DISPLAY CONTRAST
For maximum readability in varying
ambient light conditions, the function
.display's contrast is adjustable.
Lowest contrast (default)
г
Ly /
Rotate
[CHANNEL]
|
Ly c
Rotate
[CHANNEL]
Pe
Ly 3
Highest contrast
© AUTO FOG HORN FREQUENCY
The audio frequency of the auto fog |
horn can be adjusted to suit your
preference. Experiment with the fre-
quencies available until you find one
you like. |
* The fog horn outputs from the hailer
speaker while [PTT] is pushed.
200 Hz
LIL __-
Hr CO.
Rotate [CHANNEL]
250 Hz
LIL __-
HIT CHU
A
50 Hz Rotate [CHANNEL]
steps :
Y
EN
HE 550
850 Hz
CONNECTIONS AND MAINTENANCE О пн
Hl Unpacking E Additional requirements
(M) Mounting bracket ...... aanassran sara none anne caen mancrrssssesnasenaneranne 1 © FOR GENERAL OPERATION
@ DC power cable with microphone hanger* ................... 1 * Marine VHF antenna
@ Mounting bolts (M6 x 50) AI 4 * Coaxial cable
Mounting screws (AO 6 x 30) ......................eenerecanenenennes 4
® Microphone hanger screws (AO 3.5 x 30) ..................... 2 <> FOR ENHANCED DSC OPERATION -
(6) Flat washers (M6) .....................eerccccceorerocnces ensennenerenenos 8 * Navigation receiver with NMEA0183 output (such as
(7 Spring washers (M6) ........... Mneenorecrenas ercenicenermenerenvarenares 4 Loran-C or GPS) for sending positioning data with a
Mounting bracket keys cnineneneanenenenrenereeereeere enero ceceeee 2 distress call
(9 Nuts (M6) ...................e.000cccccencerenenenceareorecerenenccanee eee 4 * UX-112 DSC DECODER UNIT for the function described
(9 Fuse (10 A) -................recenenecernereoreececere nene nene. 1 on p. 14 |
{D ACC connector plug (8-pin)...................—...eeessecirecernenas 1 * One or more external alarm devices to alert you when
(29 ACC connector plug (7-pin)....................... envenena 1 you are away from the transceiver
(3 Screws for scrambler unit installation (M3 X 6) .......... 2 « One or more sensors for sensor distress calls
© FOR HAILER OPERATION
DIS = = | © * External speaker
с с DI
* UA-1 AUDIO AMPLIFIER and UX-95 RELAY INTERFACE
UNIT if you require 30 W of output power
| ®
| | | © © © © © FOR INTERCOM OPERATION
9900 * External speaker
| | | (7) 0009 0060 (9 * Non-locking switch for intercom operation:
®
| ey) of oF ef
О CONNECTIONS AND MAINTENANCE
E Connections
@ HAILER/INTERCOM CONNECTOR
- 8-pin plug connects speaker and switches for the hailer,
intercom and fog horn functions. With an optional UA-1
AUDIO AMPLIFIER, 30 W output is possible from the
speaker for the hailer of fog horn function.
Dintercom switch E @ Ground
(O Intercom switch E
@ Intercom © (instead of the hailer)
®@ intercom © O) Hailer O
UA-1— (4) Hailer Y
A DSC CONNECTOR
7-pin plug connects a navigation receiver for trans-
mission of position data, sensor(s) for the sensor distress
call and/or emergency alarm device(s).
@ Sensor®
M Test data out ®
© Sensor 9
(ground)
@Alarm © ® NMEA N®
© Alarm ©
(Max. 60 V/1 A) @NMEA INO
© DC POWER CONNECTOR
Connects the supplied DC power cable from this connec-
tor to an external 12 V DC power source.
The mic hanger and external speaker outputs are also
included in this connector.
Microphone hanger
ОС ЖФ Ext. speaker ® -
DCINO Relay control
when UX-95 is
installed.
Ext. speaker O
© ANTENNA CONNECTOR
Connects a marine VHF antenna with a PL-259 connec-
tor to the transceiver.
CAUTION: Transmitting without an antenna will damage
the transceiver.
CONNECTIONS AND MAINTENANCE 9
Intercom
switch
\ Microphone
speaker
External
speaker
(42/5 W)
12 V battery
IC-M126DSC
Hailer speaker
(40/10 W)
DSC external
device (p. 35)
Intercom speaker
(4 02/5 W)
34
9 CONNECTIONS AND MAINTENANCE
WHEN USING THE UA-1 (OPTIONAL)
Hailer speaker ПН
(30 W)
IC-M126DSC
UA-1
(plug modification
necessary)
OPC-198 cable
\ (optional)
nge
N Y Intercom
A speaker
DOSE
CONOR
ONE
OO 000
RON
the UX-95).
К
ROA]
LEDO
N
Pin number Impedance
1,4 16Q
2,4 8Q | |
Z The UX-95 MUST be installed
% when using the UA-1,
7 otherwise self-oscillation may
\_ 7 occur. |
DC cable
ay (supplied with
WHEN USING TWO SEPARATE INTERCOMS
Intercom-2 speaker
Intercom-2
switch
Intercom-1
switch
Intercom-1
switch Intercom-2
Intercom-1 switch
speaker _
intercom 1 Intercom-2
Speaker | speaker
Ne J
* The hailer function cannot be used when 2 intercoms are used.
CONNECTIONS AND MAINTENANCE 9
CONNECTIONS FOR ENHANCING DSC FUNCTIONS
Navigation receiver
_ 7 .
©
Sensor
Audio/visual alarm devices
Sensor
NMEA
input
NN
9 CONNECTIONS AND MAINTENANCE
Ш Mounting the transceiver
The universal mounting bracket supplied with your trans-
ceiver allows overhead or dashboard mounting. Please
read the following instructions carefully.
e Mount the transceiver securely with bolts and nuts or it
may come loose as a result of wave shocks or vibration.
e Mount the transceiver so that the face of the transceiver
is at 90 degrees to your line of sight when operating it.
CAUTION: KEEP the transceiver and microphone at
least 1 meter away from your vessel's magnetic navi-
gation compass.
NOTE: Check the installation angle; the function display
may not be easy-to-read at some angles.
E Antenna
One of the most important items that influences the per-
formance of any communication system is an antenna. Ask
your dealer about antennas and the best places to mount
them.
DASHBOARD MOUNTING
An optional MB-33 is available for mounting the transceiver as above.
OVERHEAD MOUNTING
==
€ A
— р 1 fr
xD Г — —
Hl Resetting the CPU
If the function display occasionally displays erroneous
information when the power is turned ON or while oper-
ating, reset the CPU.
CAUTION: After resetting the CPU, all information you
CONNECTIONS AND MAINTENANCE 9
Hl Fuse replacement
Two fuses are installed in the supplied DC power cable. If
a fuse blows or the transceiver stops functioning, track
down the source of the problem, if possible, and replace the
damaged fuse with a new, rated fuse.
e Fuse rating : 10 A
have programmed into memories is erased.
M Turn power OFF. |
@ Push and hold [F] and [CH16] until step ©.
(3) Turn power ON.
— e The function display shows all characters for a second.
(4) Release [F] and [CH16].
e Now the CPU is reset completely.
H Cleaning
If the transceiver becomes dusty or dirty, wipe it clean with
a dry, soft cloth.
AVOID the use of solvents such as benzene or alcohol, as
they may damage transceiver surfaces.
IE Backup battery
The IC-M126DSC has no backup battery. Memory channel
contents, etc. are maintained by EEPROM. The normal life
of this EEPROM is over 100 years and therefore should
never need replacing. If you have reason to believe the
EEPROM may be faulty, have a qualified Icom Dealer or
Service Technician look at it. However, the optional UX-112
has a backup battery to maintain the time.
37
a
° М 0 OPTIONAL UNIT INSTALLATIONS
Ш Removing/replacing the case
BN UX-112 (Dsc DECODER UNIT)
© TO REMOVE THE CASE:
M Turn the transceiver power OFF and disconnect the DC
power connector.
@ Remove the 6 screws located on the rear panel as
shown in the diagram above; then, slide the case free of
the transceiver.
(3) Replace the transceiver case; then, replace the 6 screws
on the rear panel when you are finished.
e 10 to 12 kg of torque MUST be applied to insure water
resistance. |
O TO INSTALL THE UX-112:
(M) Remove the transceiver case as at left.
(3) Install the UX-112 as shown above.
@ Connect the 11-pin and 5-pin plugs to J14 and J2,
respectively. |
e When installing both the UX-112 and UT-74 (or UX-110),
the UT-74 (or UX-110) should be installed under the
UX-112.
(4) Change the jumper connector positions of J12 to the 2
pins on the rear side as shown above.
6) Replace the case with the 6 screws as at left.
E UT-74/UX-110 (voice scramsLER UNITS) |
© TO INSTALL THE UT-74/UX-110:
(1) Remove the transceiver case as shown on the previous
page.
O Install the UT-74/UX-110 with the 4 screws (2 screws
supplied with the unit and 2 screws with the transceiver),
then plug the connector from the UT-74/UX-110 into J1
as shown above.
Cut off the jumper leads of W2 and W3, then cut the
diode, D30.
(4) Replace the transceiver case.
OPTIONAL UNIT INSTALLATIONS 10
BN UX-95 (RELAY INTERFACE UNIT)
MIO 3.
3
©
® ГЛ Об ®
ХЕ
Top side
Bottom side
© TO INSTALL THE UX-95:
(1) Remove the transceiver case as shown on the previous
page.
O Install the UX-95 on the bottom side of the IC-M126DSC
as shown above. |
(3) Connect the red and orange cables.
@ Pass the 3-pin connector through an opening in the
right/rear of the transceiver to the MAIN UNIT location
(top side) as shown above.
® Replace the transceiver case.
I a
HE 1 1 TROUBLESHOOTING
40
- rectly.
No power comes ON. e Power cord has been connected incorrectly. e Check the power cord connection. p. 33
e Blown fuse. e Check the polarity of the power connection, | p. 37 -
then, replace the fuse.
No sound comes from the | e The hailer or intercom function is activated. e Push [INT/USA] to turn the function OFF. p. 21
speaker. e Speaker-off is selected in SET mode. e Select speaker-on in SET mode. —
e Handset is out of the cradle (when an optional | ® Set the handset into the cradle. p. 29
handset is used).
Sensitivity is low and only | e [SQUELCH] is rotated too far clockwise. ¢ Rotate [SQUELCH] counterclockwise to a suit- —
strong signals are audible. able position.
Transmitting is impossible, or | e Transmission is restricted on some channels. * Change channels. p. 41
high power cannot be se- | e The transceiver is in hailer or intercom opera- | ® Turn the function OFF. p. 21
lected. tion.
The displayed channel can- | e The channel 16 mode has been selected. e Select another mode. p. 6
not be changed. * The emergency channel 70 mode has been | * Select another mode. p. 6
selected. |
e Dual/triwatch has been activated. e Push [DUAL] to cancel dual/tri-watch. p. 13
e Scan has been activated. * Push [F] 2 times to cancel the scan. p. 11
The memory number cannot | e Other memories have not been programmed. e Program at least 2 memories. p. 20
be changed.
Scanning or dualwatch/tri- | e The channel 16 mode has been selected. e Select another mode. p. 6
watch does not function. * The squelch is open. e Rotate [SQUELCH] clockwise. p. 8
Scan does not pause on | e The weather alert function has been turned ON. | e Turn the function OFF. p. 12
weather channels |
Receive signal cannot be | e Voice scrambler has been turned OFF. e Push [F] + [INT/USA+SCRM] to turn it ON. p.8
understood. * Voice scrambler code has not been set cor- | e Reset the scramble code in SET mode. p. 27
160.650
—
VHF MARINE CHANNEL LisT 12 lll
161.550
160.875
157.125
01 156.050 19 156.950 65 156.275 83 157.175| 161.775
01A 01A |156:050 | 156.050 19A 19A [156.950] 156.950 65A 65A |156.275/156.275 83A 83A |157.175} 157.175
02 156.100 | 160.700 20 20 |157.000| 161.600 66 156.325 160.925 84 84 157.225| 161.825
02A 02A |156.100 | 156.100 20A 20A [157.000] 157.000 ESA ESA |156.325| 156.325 84A 157.225| 157.225
03 156.150 | 160.750 21 157.050 | 161.650 67 67 *3 | 156.375 | 156.375 85 85 157.275] 161.875
03A 03A |156.150|156.150 21A 21A |157.050| 157.050 68 88 156.425 | 156.425 85A 157.275 | 157.275 |
04 156.200 | 160.800 22 157.100 | 161.700 69 69 156.475 | 156.475 86 86 157.325 | 161.925
04A 04A : | 156.200 | 156.200 22A 22A 157.100} 157.100 70 *1 70 *t 1156.525}156.525 86A 868A 157.325} 157.325
05 156.250 | 160.850 23 157.150| 161.750 71 71 156.575 | 156.575 87 87 157.375} 161.975
OSA 05A |156.250| 156.250 23A 23A [157.150] 157.150 72 72 156.625 | 156.625 87A 157.375] 157.375
06 06 156.300 | 156.300 24 24 |157.200| 161.800 73 73 156.675} 156.675 88 88 157.425] 162.025
07 156.350 | 160.950 25 25 1157.250| 161.850 74 74 156.725 | 156.725 88A 88A (157.425| 157.425
O7A 07A |158.350| 156.350 26 26 157.300| 161.900 75 75 Guard | Guard
08 08 156.400 | 156.400 27 27 |157.350| 161.950 76 78 Guard | Guard
09 09 156.450 | 156.450 28 28 |157.400| 162.000 77 77 156.875 | 156.875
10 10 156.500 | 156.500 60 156.025] 160.825 78 156.925 | 161.525 01 RX only 162.550
11 11 156.550 | 156.550 680A 60A [156.025] 158.025 78A 78A |156.925 | 156.925 02 RX only 162.400
12 12 156.600 | 156.600 61 -— 1156.075| 160.675 79 156.975 | 161.575 03 RX only 182.475
13 13*3 156.650 | 156.650 61A 61A |156.075| 156.075 79A 79A ¡156.975 | 156.975 04 RX only | 162.425
14 14 156.700 | 156.700 62 156.125| 160.725 80 157.025 | 161.625 05 RX only 162.450
15*1 15*2 |156.750|156.750 682A 62A |156.125| 156.125 80A 80A |157.025|157.025 06 RX only 182.500
16 16 156.800 | 156.800 63 156.175| 160.775 81 157.075 | 161.675 07 RX only 182.525
17 *1 17 *1 [156.850] 156.850 63A 63A [156.175] 156.175 81A 81A |157.075| 157.075 08 RX only 161.650
18 156.900 | 161.500 64 156.225 | 160.825 82 157.125 | 161.725 09 RX only 161.775
18A 18A |156.900 | 156.900 84A 64A [156.225] 156.225 82A 82A 157.125 10 RX only 163.275
*1 Low power only
*2 Transmit is inhibited
*3 Momentary high power.
a
НН 13 SPECIFICATIONS
GENERAL
e Frequency coverage
e Mode
* Number of memory
channels
* Power supply
requirement
e Current drain
(at 13.8 V DC)
e Frequency stability
e Usable temperature range:
e Dimensions
e Weight |
42
: Transmit
156.025-157.425 MHz
Receive 156.025—163.275 MHz
: 16KOG3E, 16K0G2B
25 (24 regular memories and 1 call)
channel
: 13.8 V DC + 15%
: Transmit,
high power 6.3 A
low power 1.7 A
Receive,
standby 400 mA
max. audio output 1.5A
: + 0.0005%
— 20°C to +60 °C; —4°F to + 140°F
: 228(W) x 78(H) x 192(D) mm;
9.0(W) x 3.1(H) x 7.6(D) in
(projections not included)
: 2.4 kg/5.3 Ib
TRANSMITTER
e Output power
e Modulation system
e Max. frequency deviation
e Spurious emissions
+ Microphone impedance
RECEIVER
e Receive system
e Intermediate frequencies
e Sensitivity
e Squelcn sensitivity
¢ Adjacent channel
selectivity
e Spurious response
rejection
e intermodulation rejection
e Audio output power
« Audio output impedance
:1st 21.8 MHz
: High 25 W Low 1W
: Variable reactance phase modulation
: 5 kHz
; Less than — 70 dB
: 600 Q
: Double-conversion superheterodyne
2nd 455 kHz
: 0.3 ui V for 12 dB SINAD
: 0.3 uV at threshold
:—70 dB
: — 70 аВ
:— 70 dB
:5 W with a 4 Q load
(10W for the hailer function)
:4 ©
All stated specifications are subject to change without notice
or obligation.
| |
OPTIONS 14 MI
O INTERNAL UNITS
e UT-74 VOICE SCRAMBLER UNIT
Provides private communications. Analog-type voice
scrambling unit with 128 scramble codes available.
e UX-110 VOICE SCRAMBLER INTERFACE BOARD
Interface board to install a digital voice scrambler unit
IC-HS2 HANDSET KIT*'
IC-HS3 HANDSET KIT*
*'Black
*White
For mounting the
(SC-20-450*). 16 highly confidential scramble codes are
available with the SC-20-450*.
*SC-20-450 is not available from Icom.
MB-33 FLUSH MOUNT
IC-M126DSC to a panel. |
Available in black or white. + UX-95 RELAY INTERFACE UNIT
Remotely controls the UA-1 power switch.
e UX-112 DECODER UNIT
Enhances the DSC capability of the IC-M126DSC. When
the UX-112 is installed, the transceiver conforms to U.S.
Coast Guard proposal SC-101 for marine digital commu-
nications. |
PS-66
DC-DC CONVERTER
Input voltage: 19 to 32 V DC
Output voltage: 13.6 V DC
UA-1 AUDIO AMPLIFIER
Boosts hailer output to 30 W.
Can be used separately as a
paging amplifier.
ount on us!
A-5274S-1US | Icom Inc.
Ани 0 1993 by Icom Inc. 6-9-16, Kamihigashi, Hirano-ku, Osaka 547, Japan
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