Icom UT-109 User manual

MIC-F300/F400/S series
qTurn power OFF, then disconnect the DC power
cable.
wUnscrew the 4 screws, then remove the bottom
cover.
eCut or desolder the print pattern on the PC board at
the TX mic circuit (A) and RXAF circuit (B).
rInstall the unit as shown in the instruction manual.
tReplace the bottom cover and screws, then the DC
power cable.
NOTE:
Modification points are marked A or B on the circuit
board. (see corresponding figures)
A : TX modulation circuit.
B : RX AF circuit.
The scrambler unit may be installed between the mic
amplifier circuit andAF circuit. Cut or desolder the junc-
tion points (or take off jumper chip for IC-F3/F4/S se-
ries).
•Assign the scrambler function to a programmable key
as [SCRM] on [Key & Display Assign] screen, if re-
quired.
•Operation with the [SCRM] key:
−Push and hold to turn the voice scrambler function ON.
−Push to turn the voice scrambler function OFF.
•Program the scrambler function ON/OFF and scram-
bler codes on the [Memory CH] screen, scrambler
type*, group codes*, synchronous capture mode* and
tone start timing* on the [Common] screen with
cloning software when installing this unit. (*UT-110
only)
Be sure to resolder above disconnected points, otherwise no TX modulation orAF output is available when you re-
move the scrambler units.
•Some transceiver versions will not be able to
have scrambler units installed because of CPU
revision and other factors. Please confirm that
the transceivers’ serial number is over 50000.
•UT-109 and UT-110 scrambler units require some PC
board modifications. (See below.)
•There are 2 versions (#01: Low AF level type for IC-
F3/F4/S series and #02: High AF level type for the
INSTALLATION INSTRUCTIONS
SCRAMBLER UNIT
UT-109/UT-110
Thank you for purchasing the UT-109/UT-110
SCRAMBLER UNIT. The UT-109 and UT-110 are de-
signed for Icom F series VHF/UHF FM transceivers.
Please read these instructions thoroughly before in-
stalling and operating the UT-109/UT-110.
others) for each scrambler unit. Do not install the
wrong version, as they are not compatible.
•IC-F300/F400/S series require the #02 type scram-
bler unit.
•The UT-110 may function as the UT-109 through
cloning software.
•Compatible cloning software: CS-F300S, CS-F300.
IC-F300/F400/S SERIES PRECAUTIONS
PC BOARD MODIFICATION
NOTE FOR REMOVAL
Scrambler
unit
SP
MIC
B
A
*normal way
*
A, B: junction points
CLONING
Block diagram
or or
* Desolder, remove a jumper chip or cut the pattern
- 1 -
Rev.1.2

IC-F300/F400/S SERIES MODIFICATION POINTS
A
B
MModel: IC-F300/S series
Main board A and B.
B
A
MModel: IC-F400/S series
Main board A and B.
REAR ANT
REAR ANT
- 2 -

−Push and hold to turn the voice scrambler function ON.
−Push to turn the voice scrambler function OFF.
•Some transceiver versions will not be able to
have scrambler units installed because of CPU
revision and other factors. Please confirm that
the transceivers’ serial number is over 50000.
•UT-109 and UT-110 scrambler units require some PC
board modifications. (See below.)
•IC-F3/F4/S series require a #01: Low level type
scrambler unit. Do not install the wrong version, as
they are not compatible.
•The UT-110 may function as the UT-109 through
cloning software.
•Compatible cloning software: CS-F3.
APPENDIX -1; IC-F3/F4/S SERIES PRECAUTIONS
Be sure to resolder above disconnected points, otherwise no TX modulation orAF output is available when you re-
move the scrambler units.
NOTE FOR REMOVAL
•Program the scrambler function ON/OFF and scram-
bler codes on the [Memory CH] screen, scrambler
type*, group codes*, synchronous capture mode* and
tone start timing* on the [Common] screen with
cloning software when installing this unit. (*UT-110
only)
•Assign the scrambler function to a programmable key
as [SCRM] on [Key & Display Assign] screen, if re-
quired.
•Operation with the [SCRM] key:
CLONING
PC BOARD MODIFICATION
MIC-F3/F4/S series
There are 2 types of PC boards are exist. Be sure to
confirm the board number in advance.
•IC-F3/IC-F3S
➥B4929E requires LCD side and CPU side modifica-
tions.
➥B4929F*1requires CPU side only.
•IC-F4/IC-F4S
➥B4923G LCD side and CPU side modifications.
➥B4923H*1requires CPU side only.
qTake out the knob and unscrew the antenna con-
nector screw.
wUnscrew the 2 screws, then remove the front panel.
eRemove the shield cover if necessary.
rRemove the jumper chip (DET)*2or (AF)*2on the
LCD side of the PC board.
tReplace the shield cover to the original position.
yRemove the jumper chip resistor(s) on the CPU side
of the PC board. (see right figures)
uInstall the unit as shown in the instruction manual.
iReplace the front panel and screws.
NOTE:
*1 B4929F and B4923H's modification points may
access through the service window without take
apart.
*2 Modification points are marked DET orAF on the
main board. (see below figures)
- 3 -

IC-F3/F4 SERIES MODIFICATION POINTS
1
C1
C2
C5
C8
C11
C12 C13
C14
C15
C16
C17
C18
C19
C20 C21
C22
C23 C24
C25
C26
C40
C46
C49
C50 C54
C55
C56
C57
C58
C59 C63
C64
C69
C73
C75
C77
C78
C79
C110
C111
C112
C113
C114
C115
C116
C117
C118
C119
C120
C121
C122
C124
C125
C126
C129
C131
C132
C133
C134
C135
C136
C137
C141
C142
C143
C146
C147
C149
C150
C151
C152
C154
C163
C164
C165
C166
C167
C168
C169
C170
C179
C181
C182 C183 C184
C185
C186
C189
C190
C204
C205
C211
C212
C213
C214
C217
C219
C221
C231
C232
C233
C234
C237 C238
C239 C240
C241 C242
C243
C244
C256
C268
C273
C274
D1
D3
D7
D8
D16
D17
DS2
DS3
IC1
IC2
IC3
IC4
IC5
IC10
L4
L5
L6
L7
L24
Q2
Q3
Q11
Q14
Q17
Q25
R253
Q34
Q37
R1
R4
R5
R6
R7
R8
R9
R10 R11
R12 R13
R14R15
R16
R30
R31
R34
R35
C280
R42
C279
R44
R45
C278
R49
R52
R53
R54
R55
R56
R79
R80 R81
R82
R83
R84
R85
R86
R87
R88
R89
R90
R91
R93
R94
R95
R96
R97
R98
R99 R100
R104
R105
R106
R107
R108
R109
R112
R113
R114
R115
R116
R117
R126 R127
R128
R130
R131
R132
R142
R144
R151
R153 R154
R155
R159
R160
R166
R167 R168
R169
R170
R175
R176
R178
R183
R185
R186
R190
R204
R205
R210
R215
R216
R238
R239
R240
R241
R242
R243
L28
C291
X3
L26
L27
R244
R245
L23
R257
R250
C286
R251
R255
C290
D19
R177
C288
C287
C180
C171
C289
L30
D29
C1
C2
C5
C8
C11
C12 C13
C14
C15
C16
C17
C18
C19
C20 C21
C22
C23 C24
C25
C26
C40
C46
C49
C50 C54
C55
C56
C57
C58
C59 C63
C64
C69
C73
C75
C77
C78
C79
C110
C111
C112
C113
C114
C115
C116
C117
C118
C119
C120
C121
C122
C124
C125
C126
C129
C131
C132
C133
C134
C135
C136
C137
C141
C142
C143
C146
C147
C149
C150
C151
C152
C154
C163
C164
C165
C166
C167
C168
C169
C170
C179
C181
C182 C183 C184
C185
C186
C189
C190
C204
C205
C211
C212
C213
C214
C217
C219
C221
C231
C232
C233
C234
C237 C238
C239 C240
C241
C243
C244
C256
C268
C273
C274
D1
D3
D7
D8
D16
D17
DS2
DS4
IC1
IC2
IC3
IC4
IC5
IC10
L4
L5
L6
L7
L24
Q2
Q3
Q11
Q14
Q17
Q25
R253
Q34
Q37
R1
R4
R5
R6
R7
R8
R9
R10 R11
R12 R13
R14R15
R16
R30
R31
R34
R35
C280
R42
C279
R44
R45
C278
R49
R52
R53
R54
R55
R56
R79
R80 R81
R82
R83
R84
R85
R86
R87
R88
R89
R90
R91
R93
R94
R95
R96
R97
R98
R99 R100
R104
R105
R106
R107
R108
R109
R112
R113
R114
R115
R116
R117
R127
R128
R130
R131
R132
R142
R144
R151
R153 R154
R155
R159
R160
R166
R167 R168
R169
R170
R175
R176
R178
R183
R185
R186
R190
R204
R205
R210
R215
R216
R238
R239
R240
R241
R242
R243
L28
C291
X3
L26
L27
R244
R245
L23
R257
C286
R251
R255
C290
D19
R177
C288
C287
C180
C289
L30
D29
J6
L2
L3
J7
J6
L2
L3
MC1
J7
Q1Q1
SP SPG P1
ANTENNA
SPEAKER SP1
MICROPHONE
DET
Remove the resister
from the board.
B4929F or E
w
q
Service window
1
C213
DS2
C213 MC1MC1
J6
J7J7
SPSP SPGSPG P1P1
ANTENNAANTENNA
SPEAKERSPEAKER
SP1SP1
MICROPHONEMICROPHONE
C3
C5
C477
C7 C8
C10
C13
C14
C497
C17
C18
C20
C22
C25
C26
C27
C30
C32
C42
C51
C52
C60
C61
C62
C63
C64
C73
C75
C76
C99
C106 C107
C108
C109
C112
C113
C114
C115
C116
C118
C120
C124
C125
C126
C133
C134
C135
C136
C137
C139
C140
C142
C146
C149
C151 C152
C156
C160
C162
C165
C166
C167
C170
C179
C200
C201
C202
C204
C205
C217
C218
C229
C234
C237
C238
C239
C240
C242
C408
C415
C419
R438
C474
C473
C481
C482
C464
C451
C443
L6
C476
L12
L13
L20
L21
L22
L24
L404
L406
L407
R1
R3
R7
R8
R9
R12
R14
R17
R19
R21
R32
R33
R34
R40
R41
R44
R45
R46
R52
R53
R54
R55
C450
R63
R65
R67
R68
R69
R70
R72
C448
R77
R83
R84
R85
R93
R94
R95
R96
R97
R99
R100
R104
R105
R107
R108
R109
R112
R114
R115
R116
R117
R120
R121
R122
R123
R127
R128
R132
R134
R135
R137
R141
R142
C460
R153
R154
R158
R159
R160
R163
R176
R178
R184
R208 R209
R210
C455
R405
R406 R407 R408
R409
R414
R415
R420
R421
R422
R424
R451
R457
C479
R452
R453
R459
R450
R444
R458
C492
R442
R165
L411
R449
R439
R454
C452
R446
C458
R464
R455
C465
C487
L412
C486
C496
R469
C15
C483
C3
C5
C477
C7 C8
C10
C13
C14
C17
C18
C20
C22
C25
C26
C27
C30
C32
C42
C51
C52
C60
C61
C62
C63
C64
C73
C75
C76
C99
C106 C107
C109
C112
C113
C114
C115
C116
C118
C125
C126
C133
C134
C135
C137
C140
C142
C151 C152
C156
C160
C166
C167
C170
C179
C200
C204
C205
C218
C229
C234
C237
C238
C239
C240
C242
C408
C419
R438
C474
C473
C481
C451
L6
C476
L12
L13
L20
L21
L22
L24
R1
R7
R8
R9
R12
R14
R17
R19
R21
R32
R33
R34
R40
R41
R44
R45
R46
R52
R53
R54
R55
C450
R63
R65
R67
R68
R69
R70
R72
C448
R77
R82
R83
R84
R85
R93
R94
R95
R96
R99
R105
R107
R108
R109
R112
R115
R116
R120
R121
R122
R123
R126
R127
R128
R132
R134
R135
R141
C460
R153
R154
R158
R160
R176
R178
R184
R208 R209
R210
C455
R405
R406 R407 R408
R414R420
R422
R424
R451
R457
C479
R452
R459
R450
R444
R458
R165
R449
R439
C452
R446
C458
R455
C487
C496
R469
C15
C483
C9C9
W6
C11
C48
C128
C150
C154
C169
C211
D1
D3
D24
D27
D402
D404
X3
D406
D405
C467
IC2
IC3
IC4
IC6
IC10
L1
L5
L15
Q2
Q3
Q9
Q13
Q16
Q18
Q20
Q22
Q28
Q31
Q400
Q401
Q402
R5
R162
R174
C456
Q404
IC1
Q1
L414
W6
C47
C48
C117
C150
C154
C169
D3
D24
D27
D402
X3
C467
IC2
IC3
IC4
IC5
IC6
IC10
L1
L15
Q2
Q3
Q9
Q13
Q18
Q20
Q22
Q28
Q31
Q401
Q402
R5
R162
R174
C456
C491
IC1
Q403
Q1
L414
L14L14
Q37Q37
D4D4
Q34Q34
Q19Q19
D1
R156
R157
AF
Remove the resister
from the board.
Service window
q
w
B4923H or G
Jumper
chips
Jumper chips
•CPU side
•LCD side: B4923G only. •CPU side
•LCD side: B4929E only.
MModel: IC-F3/IC-F3S
PC board number B4929E; Remove the LCD side jumper chip and the CPU side jumper chip q.
B4929F; Remove the CPU side jumper chips qand w.
MModel: IC-F4/IC-F4S
PC board number B4923G; Remove the LCD side jumper chip and the CPU side jumper chip q.
B4923H; Remove the CPU side jumper chips qand w.
- 4 -

APPENDIX -2; CLONING -1
DDSCRAMBLER ON/OFF/INH
Turns the scrambler function "ON" or "OFF" as a initial
setting. This item can also be turned "ON" or "OFF"
with a program function switch when the function is as-
signed to a switch.
"INH": This means the scrambler function selection is
inhibited.
Optional UT-109 or UT-110 Voice scrambler unit is re-
quired.
DDScrambler code
Set the scrambler code number.
Selectable value;
UT-109: 1 to 32
UT-110: 1 to 255
*Set the scrambler group code in the Common screen
in advance. (UT-110 only)
DDSCRAMBLER GROUP CODE (UT-110 only)
Set the scrambler group code.
➥Selectable value; 1 to 4.
Optional scrambler unit (UT-110) is required.
NOTE: This setting is invalid for UT-109.
DDSCRAMBLER TYPE (UT-110 only)
Set the UT-110 Rolling type scrambler as UT-109
Non-rolling type. As UT-110 and UT-109 have differ-
ent code settings, they are not compatible.
By selecting Non-rolling type in this item, you can use
UT-110 as UT-109.
➥Selectable value;
Rolling type (UT-110 normal)
Non-rolling type (UT-110 functions as UT-109)
NOTE: This setting is invalid for UT-109.
NOTE: The following setting will be invalid: Scrambler
Group Code
DDSYNCHRONOUS CAPTURE (UT-110 only)
"Synchronous capture mode" is useful when commu-
nicating through a repeater. However, because of
voice components, the transceiver can not maintain
synchronous mode in rare cases.
Normally it is best to set this item to "Standard".
➥Selectable value;
Standard (Normal operation)
Continuous (repeater operation)
DDTONE START TIMING (UT-110 only)
Tone start timing selects the synchronous tone signal
transmit delay time.
Set the delay time when the other party's transceiver
has power save mode.
➥Selectable value; OFF(default)
0.300s, 0.600s, 1.100s
MMemory CH screen
MMCommon 2 screen
- 5 -

APPENDIX-2; CLONING NOTES (CS-F3 and CS-F300/S)
MSetting examples
MIC-F3/F4/S series
➥Generally, channels with voice scrambler settings
should have the power save function in the Mem-
ory CH screen turned OFF.
➥When you want to use the voice scrambler function
on channels in which the power saver function is
ON, set the Tone Start Timing in the Common
screen to 1.100.
•For LMR:
➥In the Common 2 screen, set the Tone Start Timing
to 1.100.
➥In the DTMF Autodial screen, set the LOG/ID code
to 5 and the 1st Timer to 0.700.
➥In the memory CH screen, set necessary channels
to LOG IN (L-IN).
NOTE: At these settings, when the period from
pushing PTT to when you can talk seems long, set
the 2nd timer in the Expert screen to OFF and set
the Tone Start Timing to 0.600.
➥In the DTMFAutodial screen, set the 1st Timer to
0.200.
•For PMR:
➥In the Common 2 screen, set the Tone Start Timing
to 1.100.
➥In the TX Code CH screen, set CH NO.1 to 1 only.
➥In the TX Code Common screen, set the Long Tone
Timer to 0.300.
➥In the memory CH screen, set necessary channel
ID's to 1L (push space key to turn the Long Tone
ON/OFF). (CCIR 5-tone format)
➥In the memory CH screen, set necessary channels
to LOG IN.
NOTE: At above settings, when the period from
pushing PTT to when you can talk seems long, set
the 2nd timer in the Expert screen to OFF and set
the Tone Start Timing to 0.600.
➥In the memory CH screen, return necessary
channel ID's to 1 from 1L.
MOther notes
➥For communication between F300/F400/S series
and F3/F4/S series, make sure that the F3/F4/S se-
ries power saver settings are set to the same values
as the F300/F400/S series Tone Start Timing set-
tings.
➥When using the UT-109/UT-110 for non-rolling type
scrambling there are 32 available scramble codes.
In the memory CH screen, 1 to 255 can be input as
codes however, many of these codes are identical
(adding 32 to a code results in the same scramble
code). The following groups of codes are the same:
1to32
(33 to 64)
(65 to 96)
(97 to 128)
(129 to 160)
(161 to 192)
(193 to 224)
(225 to 255)
➥When using the UT-110 for rolling type scrambling
similar but different codes will often result in a
match. To avoid this, use codes that are sufficiently
different (generally speaking codes that are sepa-
rated by values of 20 or more will not match).
➥When using the UT-110 for rolling type scrambling
and a channel is in the scramble ON condition, if a
received signal includes no simultaneous tone, the
receiving station automatically enters the through
condition and the transmission can be monitored.
How ever, when non-rolling type scrambling is set,
simultaneous tone are not used and therefore sig-
nals from other stations are received with modula-
tion reversed.
Below examples are not always needed settings,
but will be useful in cases after transmitting a syn-
chronous tone to notify operator of times to start
talking.
- 6 -

•Operation with the [SCRM] key:
−Push and hold to turn the voice scrambler function ON.
−Push to turn the voice scrambler function OFF.
•UT-109 and UT-110 scrambler units require some PC
board modifications. (See below.)
•IC-F3GT/GS, IC-F4GT/GS series require a #01: Low
level type scrambler unit. Do not install the wrong
version, as they are not compatible.
•The UT-110 may function as the UT-109 through
cloning software.
•Compatible cloning software: CS-F3G.
APPENDIX -3; IC-F3GT/GS, IC-F4GT/GS SERIES PRECAUTIONS
Be sure to resolder above disconnected points, oth-
erwise no TX modulation or AF output is available
when you remove the scrambler units.
NOTE FOR REMOVAL
•Program the scrambler function ON/OFF/Inhibit and
scrambler codes on the Edit Memory CH screen,
Scrambler type*, Group code*, Synchronous Capture
mode* and Tone Start Timing* on the [Common 2]
screen with cloning software when installing this unit.
(*UT-110 only)
•Assign the scrambler function to a programmable key
as “Scrambler”on Key & DisplayAssign screen, if re-
quired.
CLONING
PC BOARD MODIFICATION
MCut junction patterns
Cut the junction patterns before install the scrambler
unit.
qTake off the optional connector access cover.
•Insert a screwdriver into the hollow of the chassis, then
lift and take away the cover. (The cover can not be used
again.)
wCut the patterns which marked C and F.
eInstall the unit as shown in the right.
rRemove the paper backing of 2251 OPT sheet sup-
plied as accessory.
tAttach the new 2251 OPT sheet to the service win-
dow.
yProgram the necessary information with the cloning
software before operation.
q
- 7 -
r
t
e

•Modification points. (C and F) •Cut the junction patterns C and F on the PC board
same as above.
•Modification points. (C and F) •Cut the junction patterns C and F on the PC board.
IC-F3GT/GS, IC-F4GT/GS SERIES MODIFICATION POINTS
FC
Service window
FC
Service window
MModel: IC-F3GT/GS
MModel: IC-F4GT/IC-F4GS
- 8 -

MMCommon 2 screen
DDSCRAMBLER TYPE (UT-110 only)
Set the UT-110 Rolling type scrambler as UT-109 Non-
rolling type.As UT-110 and UT-109 have different code
settings, they are not compatible.
By selecting Non-rolling type in this item, you can use
UT-110 as UT-109.
➥Selectable value;
Rolling type (UT-110 normal)
Non-rolling type (UT-110 functions as UT-109)
NOTE: This setting is invalid for UT-109.
DDSCRAMBLER GROUP CODE (UT-110 only)
UT-110 has 1020 (4 groups x 255) code numbers for
providing higher communication security. Use the same
scrambler group code for same group.
➥Selectable value; 1 to 4.
NOTE: This setting is invalid for UT-109.
DDSYNCHRONOUS CAPTURE (UT-110 only)
"Synchronous capture mode" is useful when commu-
nicating through a repeater. However, because of voice
components, the transceiver can not maintain synchro-
nous mode in rare cases.
Normally it is best to set this item to "Standard".
➥Selectable value;
Standard (Normal operation)
Continuous (repeater operation)
DDTONE START TIMING (UT-110 only)
Tone start timing selects the synchronous tone signal
transmit delay time.
Set the delay time when the other party's transceiver
has power save mode.
➥Selectable value; OFF(default)
0.300s, 0.600s, 1.100s
IC-F3GT/GS, IC-F4GT/GS SERIES CLONING -1
MEdit Memory CH screen
DDSCRAMBLER ON/OFF/Inhibit
Turns the scrambler function "ON" or "OFF" as a initial
setting. This item can also be turned "ON" or "OFF"
with a program function switch when the function is as-
signed to a switch.
"Inhibit": This means the scrambler function selection
is inhibited.
DDScrambler code
Set the scrambler code number.
Selectable value;
UT-109: 1 to 32
UT-110: 1 to 255
*UT-110 requires to set the scrambler group code (1
to 4) in the Common 2 screen. Use the same Group
Code and Scrambler code for same group.
- 9 -

IC-F3GT/GS, IC-F4GT/GS SERIES CLONING NOTES
MSetting examples
MIC-F3GT/GS, IC-F4GT/GS series
➥Generally, channels with voice scrambler settings
should have the power save function in the Edit
Memory CH screen turned OFF.
➥When you want to use the voice scrambler function
on channels in which the power saver function is
ON, set the Tone Start Timing in the Common 2
screen to 1.100.
•In above case, non-scrambling voice will be transmitted
approx. 1 sec. after pushing PTT.
When using the UT-110 as rolling type scrambler unit
to keep the highest level of privacy, the ‘LOG IN’func-
tion provides full time scrambling communications.
MUsing ‘LOG IN’ function
•For LMR:
➥In the Common 2 screen, set the Tone Start Timing
to 1.100.
➥In the DTMF Autodial screen, set the LOG/ID code
to 5 and the 1st Timer to 0.700.
➥In the memory CH screen, set necessary channels
to LOG IN (L-IN).
NOTE: At these settings, when the period from
pushing PTT to when you can talk seems long, set
the Power Save Start timer (2nd) in the Expert
screen to “0.000”and set the Tone Start Timing in
the Common 2 screen to 0.600.
➥In the DTMFAutodial screen, set the 1st Timer to
0.200.
•For PMR:
➥In the Common 2 screen, set the Tone Start Timing
to 1.100.
➥In the TX Code CH screen, set CH NO.1 to 1 only.
➥In the 5Tone setting screen, set the Long Tone Timer
to 0.300.
➥In the Edit Memory CH screen, set necessary chan-
nel ID's to 1L (click check box to turn the Long Tone
ON). (CCIR 5-tone format)
➥In the memory CH screen, set necessary channels
to LOG IN (L-IN).
NOTE: At above settings, when the period from
pushing PTT to when you can talk seems long, set
the Power Save Start timer (2nd) in the Expert
screen to 0.000 and set the Tone Start Timing to
0.600.
➥In the memory CH screen, return necessary
channel ID's to 1 from 1L.
MOther notes
➥For communication between F300/F400/S series
and F3GT/GS, F4GT/GS series, make sure that the
F3GT/GS, F4GT/GS series power saver settings are
set to the same values as the F300/F400/S series
Tone Start Timing settings.
➥When using the UT-109/UT-110 for non-rolling type
scrambling there are 32 available scramble codes.
In the memory CH screen, 1 to 255 can be input as
codes however, many of these codes are identical
(adding 32 to a code results in the same scramble
code). The following groups of codes are the same:
1to32
(33 to 64)
(65 to 96)
(97 to 128)
(129 to 160)
(161 to 192)
(193 to 224)
(225 to 255)
➥When using the UT-110 for rolling type scrambling
similar but different codes will often result in a
match. To avoid this, use codes that are sufficiently
different (generally speaking codes that are sepa-
rated by values of 20 or more will not match).
➥When using the UT-110 for rolling type scrambling
and a channel is in the scramble ON condition, if a
received signal includes no simultaneous tone, the
receiving station automatically enters the through
condition and the transmission can be monitored.
However, when non-rolling type scrambling is set, si-
multaneous tone are not used and therefore signals
from other stations are received with modulation re-
versed.
Below examples are not always needed settings,
but will be useful in cases after transmitting a syn-
chronous tone to notify operator of times to start
- 10 -

APPENDIX-4; IC-F1010/F1020/F2010/F2020 SERIES MODIFICATION POINTS
FRONT
MIC
AFO
UT-109/110
MModel: IC-F1000/F2000 series
Cut the junction patterns on Main board AFO and MIC.
•UT-109 and UT-110 scrambler units require some PC
board modifications. (See above MIC and AFO.)
•IC-F1010/F1020, IC-F2010/F2020 series require a
#02: High AF level type scrambler unit. Do not in-
stall the wrong version, as they are not compatible.
•The UT-110 may function as the UT-109 through
cloning software.
•Compatible cloning software: CS-F1000 Rev.2.2.
•Program the scrambler function OFF/ON/INH and
scrambler codes on the Memory Channel screen,
Scrambler Type*, Group Code*, Synchronous Cap-
ture* and Tone Start Timing* on the [Common 2]
screen with cloning software when installing scram-
bler unit. (*UT-110 only)
•Assign the scrambler function to a programmable key
as “Scrambler”on [Key & Display Assign] screen, if
required.
•Operation with the [Scrambler] key:
−Push and hold to turn the voice scrambler function ON.
−Push to turn the voice scrambler function OFF.
•Please refer the “IC-F3/F4/S SERIES CLONING
PRECAUTIONS”on p. 3.
- 11 -
CLONING
MAIN unit
NOTE FOR REMOVAL
Be sure to resolder above disconnected points, oth-
erwise no TX modulation or AF output is available
when you remove the scrambler units.

•UT-109 and UT-110 scrambler units require some PC
board modifications. (See below and next.)
•IC-F30/F31GT/GS, IC-F40/F41GT/GS series require
a #02: High AF level type scrambler unit. Do not in-
stall the wrong version, as they are not compatible.
•The UT-110 may function as the UT-109 through
cloning software.
•Compatible cloning software: CS-F30G.
APPENDIX -4; IC-F30/F31GT/GS, IC-F40/F41GT/GS SERIES PRECAUTIONS
OPTIONAL UNIT INSTALLATION
MInstallation
Disassemble the some parts before install the scram-
bler unit.
qUnscrew nut a, and remove the knobs.
wUnscrew screw band 2 screws c, then remove
the multi-connector cover and rear panel.
eUnscrew 2 screws d, then remove the multi-con-
nector.
rUnscrew 2 screws e, then take off the chassis from
the front panel in the direction of the arrow.
Be careful!:
Flat cable is connected between the MAIN unit on
the chassis and front panel.
t
Install the desired optional unit. Insert tightly to avoid
bad contact.
NOTE: When installing UT-105 or UT-111, the unit
MUST BE plugged into OPT1. Otherwise the unit
will not work correctly. (Other optional units can be
plugged into either slot.)
yProgram the necessary information with the cloning
software before operation.
•Please refer the “IC-F3GT/GS, IC-F4GT/GS SERIES
CLONING NOTES”on p. 10.
Be sure to resolder disconnected points, otherwise
no TX modulation orAF output is available after you
remove the scrambler units.
NOTE FOR REMOVAL
•Program the scrambler function ON/OFF/Inhibit and
scrambler codes on the Edit Memory CH screen,
Scrambler type*, Group code*, Synchronous Capture
mode* and Tone Start Timing* on the [Common 2]
screen with cloning software when installing scram-
bler unit. (*UT-110 only)
•Assign the scrambler function to a programmable key
as “Scrambler”on Key & DisplayAssign screen, if re-
quired.
•Operation with the [Scrambler] key:
−Push and hold to turn the voice scrambler function ON.
−Push to turn the voice scrambler function OFF.
CLONING
OPT1 OPT2
a
b
d
d
c
e
- 12 -

MODIFICATION POINTS
1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003 Japan
Count on us!
A-8326I-1EX-wPrinted in Japan
© 1997 Icom Inc.
B
urface
A
1 5
10 15 16
20 25 30
D
G
C
1 5
10 15 16
20 25 30
F
E
J1 J2
OPT1 OPT2
AF line
MIC line
OPT2 connector
for;
UT-109/110,
UT-113
*DO NOT install
UT-105 or UT-111
into OPT2.
OPT1 connector
for;
UT-105,
UT-111,
UT-109/110,
UT-113
MAIN unit
•Modification points. (Both IC-F30/F31GT/GS, F40/F41GT/GS)
•Cut the junction patterns A and B on the MAIN unit.
- 13 -
09.2000