M IC-F300/F400/S seriesq Turn power OFF, then disconnect the DC power

cable.w Unscrew the 4 screws, then remove the bottom

cover.e Cut or desolder the print pattern on the PC board at

the TX mic circuit (A) and RX AF circuit (B).r Install the unit as shown in the instruction manual.t Replace the bottom cover and screws, then the DC

power cable.NOTE:Modification points are marked A or B on the circuitboard. (see corresponding figures)A : TX modulation circuit.B : RX AF circuit.

The scrambler unit may be installed between the micamplifier circuit and AF 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 keyas [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, scramblertype*, group codes*, synchronous capture mode* andtone start timing* on the [Common] screen withcloning software when installing this unit. (*UT-110only)

Be sure to resolder above disconnected points, otherwise no TX modulation or AF output is available when you re-move the scrambler units.

Some transceiver versions will not be able tohave scrambler units installed because of CPUrevision and other factors. Please confirm thatthe transceivers serial number is over 50000.

UT-109 and UT-110 scrambler units require some PCboard 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 UNITUT-109/UT-110

Thank you for purchasing the UT-109/UT-110SCRAMBLER 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 thewrong 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 throughcloning software.

Compatible cloning software: CS-F300S, CS-F300.

IC-F300/F400/S SERIES PRECAUTIONS

PC BOARD MODIFICATION

NOTE FOR REMOVAL

Scramblerunit

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

M Model: IC-F300/S series Main board A and B.

BA

M Model: IC-F400/S seriesMain board A and B.

REAR ANT

REARANT

- 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 tohave scrambler units installed because of CPUrevision and other factors. Please confirm thatthe transceivers serial number is over 50000.

UT-109 and UT-110 scrambler units require some PCboard modifications. (See below.)

IC-F3/F4/S series require a #01: Low level typescrambler 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 or AF 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, scramblertype*, group codes*, synchronous capture mode* andtone start timing* on the [Common] screen withcloning software when installing this unit. (*UT-110only)

Assign the scrambler function to a programmable keyas [SCRM] on [Key & Display Assign] screen, if re-quired.

Operation with the [SCRM] key:

CLONING

PC BOARD MODIFICATIONM IC-F3/F4/S seriesThere are 2 types of PC boards are exist. Be sure toconfirm the board number in advance. IC-F3/IC-F3S B4929E requires LCD side and CPU side modifica-tions. B4929F*1 requires CPU side only. IC-F4/IC-F4S B4923G LCD side and CPU side modifications. B4923H*1 requires CPU side only.

q Take out the knob and unscrew the antenna con-nector screw.

w Unscrew the 2 screws, then remove the front panel.e Remove the shield cover if necessary.r Remove the jumper chip (DET)*2 or (AF)*2 on the

LCD side of the PC board.t Replace the shield cover to the original position.y Remove the jumper chip resistor(s) on the CPU side

of the PC board. (see right figures)u Install the unit as shown in the instruction manual.i Replace 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 or AF 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

C189C1

90

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

R14 R15

R16

R30

R31

R34

R35

C280

R42

C279

R44

R45

C278

R49

R52 R5

3

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 R2

42 R243

L28

C291

X3 L26

L27

R244

R245

L23

R257

R250

C286

R251

R255

C290

D19

R177 C2

88

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

C189C1

90

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

R14 R15

R16

R30

R31

R34

R35

C280

R42

C279

R44

R45

C278

R49

R52 R5

3

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 R2

42 R243

L28

C291

X3 L26

L27

R244

R245

L23

R257

C286

R251

R255

C290

D19

R177 C2

88

C287

C180

C289

L30

D29

J6

L2L3

J7

J6

L2L3

MC1

J7

Q1 Q1

SPSP

GP1

ANTE

NN

A

SPEA

KER

SP1

MIC

ROPH

ONE

DETRemove the resisterfrom the board.

B4929F or E

w

q

Service window

1

C213

DS2

C213

MC1

MC1

J6

J7 J7

SPSPSP

GSP

GP1P1

ANTE

NN

AAN

TEN

NA

SPEA

KER

SPEA

KER

SP1

SP1

MIC

ROPH

ONE

MIC

ROPH

ONE

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

C137C

139

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 L4

06

L407

R1

R3

R7

R8

R9

R12R14

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 R

85

R93

R94

R95

R96

R97R9

9

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

R406R407

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

R12R14

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 R

85

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

R406R407

R408

R414 R420

R422

R424

R451

R457

C479

R452

R459

R450

R444

R458

R165

R449

R439

C452

R446

C458

R455

C487

C496

R469

C15

C483

C9 C9

W6C

11

C48

C128

C150

C154

C169

C211

D1

D3

D24

D27

D402

D404

X3

D406

D405

C467

IC2

IC3

IC4

IC6

IC10

L1L5

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

L14 L14

Q37 Q37

D4 D4

Q34 Q34

Q19 Q19

D1

R156

R157

AFRemove the resisterfrom the board.

Service window

q

w

B4923H or G

Jumperchips

Jumper chips

CPU side

LCD side: B4923G only. CPU side

LCD side: B4929E only.

M Model: IC-F3/IC-F3SPC board number B4929E; Remove the LCD side jumper chip and the CPU side jumper chip q.

B4929F; Remove the CPU side jumper chips q and w.

M Model: IC-F4/IC-F4SPC board number B4923G; Remove the LCD side jumper chip and the CPU side jumper chip q.

B4923H; Remove the CPU side jumper chips q and w.

- 4 -

APPENDIX -2; CLONING -1

DD SCRAMBLER ON/OFF/INHTurns the scrambler function "ON" or "OFF" as a initialsetting. 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 isinhibited. Optional UT-109 or UT-110 Voice scrambler unit is re-quired.

DD Scrambler codeSet the scrambler code number. Selectable value;

UT-109: 1 to 32UT-110: 1 to 255

*Set the scrambler group code in the Common screenin advance. (UT-110 only)

DD SCRAMBLER 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.

DD SCRAMBLER TYPE (UT-110 only)Set the UT-110 Rolling type scrambler as UT-109Non-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 useUT-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

DD SYNCHRONOUS CAPTURE (UT-110 only)"Synchronous capture mode" is useful when commu-nicating through a repeater. However, because ofvoice components, the transceiver can not maintainsynchronous mode in rare cases.Normally it is best to set this item to "Standard". Selectable value;

Standard (Normal operation)Continuous (repeater operation)

DD TONE START TIMING (UT-110 only)Tone start timing selects the synchronous tone signaltransmit delay time.Set the delay time when the other party's transceiverhas power save mode. Selectable value; OFF(default)

0.300s, 0.600s, 1.100s

M Memory CH screen

MM Common 2 screen

- 5 -

APPENDIX-2; CLONING NOTES (CS-F3 and CS-F300/S)M Setting examples

M IC-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 functionon channels in which the power saver function isON, set the Tone Start Timing in the Commonscreen to 1.100.

For LMR:

In the Common 2 screen, set the Tone Start Timingto 1.100.

In the DTMF Autodial screen, set the LOG/ID codeto 5 and the 1st Timer to 0.700.

In the memory CH screen, set necessary channelsto LOG IN (L-IN).NOTE: At these settings, when the period frompushing PTT to when you can talk seems long, setthe 2nd timer in the Expert screen to OFF and setthe Tone Start Timing to 0.600.

In the DTMF Autodial screen, set the 1st Timer to0.200.

For PMR:

In the Common 2 screen, set the Tone Start Timingto 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 ToneON/OFF). (CCIR 5-tone format)

In the memory CH screen, set necessary channelsto LOG IN.

NOTE: At above settings, when the period frompushing PTT to when you can talk seems long, setthe 2nd timer in the Expert screen to OFF and setthe Tone Start Timing to 0.600.

In the memory CH screen, return necessarychannel ID's to 1 from 1L.

M Other 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 valuesas the F300/F400/S series Tone Start Timing set-tings.

When using the UT-109/UT-110 for non-rolling typescrambling there are 32 available scramble codes.In the memory CH screen, 1 to 255 can be input ascodes however, many of these codes are identical(adding 32 to a code results in the same scramblecode). The following groups of codes are the same:

1 to 32(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 scramblingsimilar but different codes will often result in amatch. To avoid this, use codes that are sufficientlydifferent (generally speaking codes that are sepa-rated by values of 20 or more will not match).

When using the UT-110 for rolling type scramblingand a channel is in the scramble ON condition, if areceived signal includes no simultaneous tone, thereceiving station automatically enters the throughcondition 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 starttalking.

- 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 PCboard modifications. (See below.)

IC-F3GT/GS, IC-F4GT/GS series require a #01: Lowlevel type scrambler unit. Do not install the wrongversion, as they are not compatible.

The UT-110 may function as the UT-109 throughcloning 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 availablewhen you remove the scrambler units.

NOTE FOR REMOVAL

Program the scrambler function ON/OFF/Inhibit andscrambler codes on the Edit Memory CH screen,Scrambler type*, Group code*, Synchronous Capturemode* 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 keyas Scrambler on Key & Display Assign screen, if re-quired.

CLONING

PC BOARD MODIFICATIONM Cut junction patternsCut the junction patterns before install the scramblerunit.

q Take 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 usedagain.)

w Cut the patterns which marked C and F.e Install the unit as shown in the right.r Remove the paper backing of 2251 OPT sheet sup-

plied as accessory.t Attach the new 2251 OPT sheet to the service win-

dow.y Program 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 boardsame 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

F C

Service window

M Model: IC-F3GT/GS

M Model: IC-F4GT/IC-F4GS

- 8 -

MM Common 2 screen

DD SCRAMBLER 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 codesettings, they are not compatible.By selecting Non-rolling type in this item, you can useUT-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.

DD SCRAMBLER GROUP CODE (UT-110 only)UT-110 has 1020 (4 groups x 255) code numbers forproviding higher communication security. Use the samescrambler group code for same group. Selectable value; 1 to 4.

NOTE: This setting is invalid for UT-109.

DD SYNCHRONOUS CAPTURE (UT-110 only)"Synchronous capture mode" is useful when commu-nicating through a repeater. However, because of voicecomponents, 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)

DD TONE START TIMING (UT-110 only)Tone start timing selects the synchronous tone signaltransmit delay time.Set the delay time when the other party's transceiverhas power save mode. Selectable value; OFF(default)

0.300s, 0.600s, 1.100s

IC-F3GT/GS, IC-F4GT/GS SERIES CLONING -1M Edit Memory CH screen

DD SCRAMBLER ON/OFF/InhibitTurns the scrambler function "ON" or "OFF" as a initialsetting. 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 selectionis inhibited.

DD Scrambler codeSet the scrambler code number. Selectable value;

UT-109: 1 to 32UT-110: 1 to 255

*UT-110 requires to set the scrambler group code (1to 4) in the Common 2 screen. Use the same GroupCode and Scrambler code for same group.

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IC-F3GT/GS, IC-F4GT/GS SERIES CLONING NOTESM Setting examples

M IC-F3GT/GS, IC-F4GT/GS series Generally, channels with voice scrambler settings

should have the power save function in the EditMemory CH screen turned OFF.

When you want to use the voice scrambler functionon channels in which the power saver function isON, set the Tone Start Timing in the Common 2screen 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 unitto keep the highest level of privacy, the LOG IN func-tion provides full time scrambling communications.

M Using 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 frompushing PTT to when you can talk seems long, setthe Power Save Start timer (2nd) in the Expertscreen to 0.000 and set the Tone Start Timing inthe Common 2 screen to 0.600.

In the DTMF Autodial screen, set the 1st Timer to0.200.

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 ToneON). (CCIR 5-tone format)

In the memory CH screen, set necessary channelsto LOG IN (L-IN). NOTE: At above settings, when the period frompushing PTT to when you can talk seems long, setthe Power Save Start timer (2nd) in the Expertscreen to 0.000 and set the Tone Start Timing to0.600.

In the memory CH screen, return necessarychannel ID's to 1 from 1L.

M Other notes For communication between F300/F400/S series

and F3GT/GS, F4GT/GS series, make sure that theF3GT/GS, F4GT/GS series power saver settings areset to the same values as the F300/F400/S seriesTone Start Timing settings.

When using the UT-109/UT-110 for non-rolling typescrambling there are 32 available scramble codes.In the memory CH screen, 1 to 255 can be input ascodes however, many of these codes are identical(adding 32 to a code results in the same scramblecode). The following groups of codes are the same:

1 to 32(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 scramblingsimilar but different codes will often result in amatch. To avoid this, use codes that are sufficientlydifferent (generally speaking codes that are sepa-rated by values of 20 or more will not match).

When using the UT-110 for rolling type scramblingand a channel is in the scramble ON condition, if areceived signal includes no simultaneous tone, thereceiving station automatically enters the throughcondition and the transmission can be monitored.However, when non-rolling type scrambling is set, si-multaneous tone are not used and therefore signalsfrom 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

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APPENDIX-4; IC-F1010/F1020/F2010/F2020 SERIES MODIFICATION POINTS

FRONT

MIC

AFO

UT-109/110

M Model: IC-F1000/F2000 series Cut the junction patterns on Main board AFO and MIC.

UT-109 and UT-110 scrambler units require some PCboard 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 throughcloning software.

Compatible cloning software: CS-F1000 Rev.2.2.

Program the scrambler function OFF/ON/INH andscrambler 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 keyas Scrambler on [Key & Display Assign] screen, ifrequired.

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 CLONINGPRECAUTIONS on p. 3.

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CLONING

MAIN unit

NOTE FOR REMOVALBe sure to resolder above disconnected points, oth-erwise no TX modulation or AF output is availablewhen you remove the scrambler units.

UT-109 and UT-110 scrambler units require some PCboard modifications. (See below and next.)

IC-F30/F31GT/GS, IC-F40/F41GT/GS series requirea #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 throughcloning software.

Compatible cloning software: CS-F30G.

APPENDIX -4; IC-F30/F31GT/GS, IC-F40/F41GT/GS SERIES PRECAUTIONS

OPTIONAL UNIT INSTALLATION M InstallationDisassemble the some parts before install the scram-bler unit.

q Unscrew nut a, and remove the knobs.w Unscrew screw b and 2 screws c, then remove

the multi-connector cover and rear panel.e Unscrew 2 screws d, then remove the multi-con-

nector. r Unscrew 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 onthe chassis and front panel.

t Install the desired optional unit. Insert tightly to avoidbad contact.NOTE: When installing UT-105 or UT-111, the unitMUST BE plugged into OPT1. Otherwise the unitwill not work correctly. (Other optional units can beplugged into either slot.)

y Program the necessary information with the cloningsoftware before operation.

Please refer the IC-F3GT/GS, IC-F4GT/GS SERIESCLONING NOTES on p. 10.

Be sure to resolder disconnected points, otherwiseno TX modulation or AF output is available after youremove the scrambler units.

NOTE FOR REMOVAL

Program the scrambler function ON/OFF/Inhibit andscrambler codes on the Edit Memory CH screen,Scrambler type*, Group code*, Synchronous Capturemode* 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 keyas Scrambler on Key & Display Assign 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

OPT1OPT2

a

bd

d

c

e

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MODIFICATION POINTS

1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003 Japan

Count on us!A-8326I-1EX-w Printed in Japan

1997 Icom Inc.

B

urface

A

1 5 10 1516202530

DG

C

1 5 10 1516202530

F

EJ1 J2OPT1 OPT2

AF line

MIC line

OPT2 connectorfor;UT-109/110,UT-113

*DO NOT installUT-105 or UT-111into OPT2.

OPT1 connectorfor;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.

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09.2000

gsktAmerican Communication Systems, Inc.