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Preamp and attenuator, Preamplifier, Attenuator

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Previous view 5 FUNCTIONS FOR RECEIVE Preamp and attenuator DDPreamplifier The preamplifier amplifies weak signals in the receiver front end, to improve the S/N ratio and sensitivity. Turn this function ON when receiving weak signals. (Frequency band: HF, 50/70 MHz) ➥ Push P.AMP ATT (C) one or more times to set the preamp OFF, preamp 1 ON or preamp 2 ON. • Either "P.AMP1" or "P.AMP2" is displayed when the preamp 1 or preamp 2 is ON. • No icon is displayed when the preamplifier is OFF. P.AMP1 P.AMP2 Wide dynamic range preamplifier. It is most effective for the 1.8 to 21 MHz bands. High-gain preamplifier. It is most effective for the 24 to 70 MHz bands. (Frequency band: 144/430 MHz) ➥ Push P.AMP ATT (C) turn the Preamplifier ON or OFF. • "P.AMP" appears when the preamplifier is ON. • No icon is displayed when it's OFF. P.AMP ATT ✔ About the "P.AMP2" preamplifier The preamp 2 is a high gain receive amplifier. When it is used in the presence of strong electromagnetic fields, distortion sometimes results. In such cases, use either the "P.AMP1" or "P.AMP OFF" setting. Preamp 2 is most effective when: • Used on bands above 24 MHz and when signals are weak. • Receive sensitivity is insufficient when using low- gain antennas, or while using a narrow band antenna. (such as small loop, a Beverage antenna or a short Yagi antenna) DDAttenuator The attenuator prevents a desired signal from being distorted when very strong signals are near the signal's frequency, or when very strong electromagnetic fields, such as from broadcast stations are near your location. These can both be independently set for each band. ➥ Hold down P.AMP ATT (C) for 1 second to turn ON the Attenuator. • "ATT" appears on the display when the Attenuator is ON. ➥ Push P.AMP ATT (C) to turn it OFF. P.AMP ATT About the Preamplifier and Attenuator switching procedure Push or hold down P.AMP ATT (C) to switch the Preamplifier and Attenuator, as shown below. • HF, 50/70 MHz frequency bands P.AMP OFF P.AMP1 ON Push P.AMP ATT P.AMP2 ON Hold down P.AMP ATT ATT ON Push P.AMP ATT • 144/430 MHz frequency bands P.AMP OFF Push P.AMP ATT P.AMP ON Hold down P.AMP ATT ATT ON Push P.AMP ATT 5-2

Section	Page
Top page	1
Section 1 PANEL DESCRIPTION	5
Controller — Front panel	6
Controller — Function display	12
Controller — Multi-function keys	15
M-1 (M-1 menu) Display	15
M-2 (M-2 menu) Display	15
M-3 (M-3 menu) Display	15
D-1 (D-1 menu) Display	15
D-2 (D-2 menu) Display	15
Function keys on M-1 display	16
Function keys on M-2 display	16
Function keys on M-3 display	17
Function keys on D-1 display	18
Function keys on D-2 display	18
Controller — Rear and bottom panels	19
Main unit — Front panel	20
Main unit — Rear panel	21
ACC socket information	23
DATA2 socket information	24
Microphone connector information	24
Microphone	25
HM-198 (Supplied)	25
SM-50 (Option)	26
SM-30 (Option)	26
HM-151 (Option)	27
Section 2 INSTALLATION AND CONNECTIONS	29
Selecting a location	30
Installing the transceiver in a vehicle	30
Grounding	30
Antenna connection	31
Connect controller to transceiver	32
The Main unit installation	32
Installing the Controller	33
Connecting accessories to the controller	34
Required Connections to a Transceiver	35
The External Units Connections to a Transceiver	36
Power Supply Connections	37
Connecting the PS-126 power supply	37
Battery connections	37
Connecting a non-Icom DC power supply	37
Linear Amplifier Connections	38
Connecting a non-Icom linear amplifier	39
Section 3 BASIC OPERATION	40
Power ON	41
Before first applying power	41
Tuning ON the power	41
Selecting a Function menu	42
Selecting VFO/Memory mode	43
VFO operation	44
Selecting VFO A or VFO B	44
VFO equalization	44
Selecting a frequency band	45
Using the band stacking registers	45
Setting frequency	46
Tuning with the Dial	46
Quick Tuning function	47
Selecting ‘kHz’ step	48
Selecting 1 Hz step	48
1⁄4 tuning step function	49
Auto tuning step function	49
Direct frequency input	50
Band edge warning beep	52
Programming the user band edge	53
Selecting the Operating mode	56
Selecting the Audio volume	57
Squelch and receive (RF) sensitivity	58
Voice synthesizer operation	59
Tuning OFF the S-meter announcement	60
Tuning ON the MODE announcement	60
Meter display selection	61
Basic transmit operation	62
Transmitting	62
Microphone gain adjustment	63
Weather channel operation	64
Weather channel selection	64
Weather alert function	64
For reference to USA version	65
About the 5 MHz frequency band operation	65
Section 4 RECEIVE AND TRANSMIT	66
Operating SSB	67
Operating CW	68
About the CW reverse mode	69
About keying speed	69
About CW pitch control	69
CW sidetone function	70
CW Auto tune function	70
Electronic keyer functions	71
Memory keyer menu construction	71
Memory keyer send menu	72
Editing a memory keyer	73
Contest number Set mode	74
Keyer Set mode	75
Operating RTTY (FSK)	77
The functions for RTTY operation	78
About RTTY reverse mode	78
Twin Peak Filter	78
RTTY Set mode	79
RTTY decoder	80
RTTY decode Set mode	81
Transmitting an RTTY memory	82
Editing an RTTY memory	83
Turning ON the RTTY decode log	84
RTTY decode log Set mode	85
Operating AM/FM	86
Tone squelch operation	87
DTCS operation	88
Tone scan/DTCS code scan operation	89
Repeater operation	90
Repeater access tone frequency setting	91
One-touch repeater function	92
Transmit frequency monitor check	93
1750 Hz tone burst	93
Turning ON the Auto Repeater function	94
Storing a non standard repeater	95
Section 5 FUNCTIONS FOR RECEIVE	96
Preamp and attenuator	97
Preamplifier	97
Attenuator	97
AGC function	98
AGC speed selection	98
Setting the AGC time constant	98
RIT function	99
Twin PBT operation	100
IF filter selection	101
IF filter selection	101
Filter passband width setting	101
IF (DSP) filter shape	102
Noise Blanker	103
NB Set mode	103
Noise Reduction	104
Notch function	105
Auto Notch function	105
Manual Notch function	106
Lock function	107
Selecting the Lock type	107
Meter peak hold function	108
Simple Band Scope	109
Section 6 FUNCTIONS FOR TRANSMIT	110
VOX function	111
Using the VOX function	111
Adjusting the VOX function	111
Break-in function	112
Semi Break-in operation	112
Full Break-in operation	113
Speech compressor function	114
Transmit filter width selection	115
Monitor function	116
Split frequency operation	117
Direct frequency shift input	118
Split Lock function	119
Quick Split function	120
Split frequency offset setting	121
Measuring SWR	122
Spot measurement	122
Plot measurement	123
SWR Graph Set mode	125
DTMF Memory encoder	126
Programming a DTMF code	126
Transmitting DTMF code	127
Transmitting DTMF code (Direct Input)	128
Setting DTMF transfer speed	129
Section 7 D-STAR INTRODUCTION	130
“MY” (Your own call sign) programming	131
D-STAR Intoroduction	134
About the DR (D-STAR Repeater) mode	135
Communication Form in the DR mode	136
Section 8 D-STAR OPERATION <BASIC>	137
Procedures of the D-STAR Operation	138
Making a Local area cal	138
Making a Gateway cal	139
About “UR?” and “RPT?” error messages	142
Shows “UR?”	142
Shows “RPT?” or “RX”	142
Shows “L”	142
Capturing a call sign	143
“FROM” (Access repeater) setting	144
Using the preloaded repeater list	145
Using the DR mode scan	146
Using the Repeater Search function	147
Using the TX History	149
“TO” (Destination) setting	150
Using the “Local CQ” (Local Area call)	151
Using the “Gateway CQ” (Gateway call)	152
Using the “Your Call Sign”	153
Using the RX History	154
Using the TX History	155
Directly inputting (UR)	156
Directly inputting (RPT)	157
Section 9 D-STAR OPERATION <ADVANCED>	158
Message operation	159
TX message programming	159
Message Transmission	162
TX message deleting	163
Received call sign viewing	164
View in the RX History screen	164
BK mode communication	166
EMR communication	167
Adjusting the EMR AF level	168
Display type setting	169
DV automatic detection	170
Automatic Reply function	171
Recording an Auto Reply voice announcement	172
Playing back the recorded voice audio	172
Received Auto Reply Position Data	173
Low-speed data communication	174
Connection	174
Low-speed data communication application setting	174
Low-speed data communication operation	174
Speech function	175
To announce the received call sign	175
To announce the RX>CS call sign	176
Speech Language selection	177
Phonetic Code setting for the Speech alphabet character	177
Speech speed selection	178
Speech level selection	178
Digital squelch functions	179
The digital call sign squelch setting	179
The digital code squelch setting	179
Digital code setting	180
Viewing the call signs	181
Changing the Call sign setting	182
Simplex operation	182
For Duplex (repeater) operation	183
Repeater list	185
Repeater list contents	185
Repeater list programming	186
Required items for the communication cases	186
New repeater programming	186
Editing a repeater list	195
Deleting a repeater list	196
Rearrange the display order of the repeater	197
Adding the Repeater information using the RX History	198
Skip setting for the DR mode scan	199
Individual skip setting	199
Group skip setting	199
Repeater group name programming	200
Repeater detail screen	201
Your (destination) call sign programming	202
Editing a Your (destination) call sign	204
Rearrange the display order of Your (destination) call sign	205
Deleting Your (destination) call sign	206
Your setting is correct?	207
Section 10 GPS/GPS-A OPERATION	208
GPS operation	209
GPS receive setting	209
Checking GPS position	210
Displaying Position Data	210
Changing the GPS memory and alarm	211
About the Grid Locator	211
Changing the Compass Direction	211
Saving your own or received position data	212
Checking GPS information (Sky view screen)	213
Adding or editing GPS memory	214
GPS memory	214
Add a GPS memory	214
GPS group name programming	218
Clearing a GPS data	219
Moving a GPS data	220
GPS alarm setting	221
Transmitting GPS data	223
GPS data sentence setting	223
GPS message programming	224
Transmitting GPS-A data	225
D-PRS	225
Operating GPS-A	225
Setting GPS-A	226
Displaying your position using a mapping software	228
GPS Auto transmission for only Simplex	229
Setting the GPS automatic transmission	229
Section 11 MEMORY OPERATION	230
General description	231
Memory channel contents	231
Selecting a Memory channel	232
Selecting in the VFO mode	232
Selecting in the Memory mode	232
Selecting a Call channel	233
Programming a Memory channel	234
Programming in the VFO mode	234
Programming in the Memory mode	234
Programming the Call channels	234
Programming in the DR mode	235
Checking the programmed Memory contents	236
Checking the Memory contents programmed in the DR mode	236
Clearing a Memory channel	237
Copying Memory contents	238
Copying in the Memory mode	238
Copying in the VFO mode	238
Programming a Memory name	239
Selecting a Memory display type	241
Memo pad function	242
Writing the displayed contents into the Memo pads	242
Calling up the Memo pads	243
Section 12 SCAN OPERATION	244
Scan types	245
Preparation	246
Scan Set mode	247
Voice Squelch Control function	249
Scan edge programming	250
Programmed scan (VFO mode)	251
Fine programmed scan (VFO mode)	252
Memory scan (Memory mode)	253
Memory scan	253
Mode Select scan	254
Select Memory scan	255
Setting/Cancelling Select Memory channels	256
Delta F scan and Fine Delta F scan (VFO mode/Memory mode).	257
About the Delta F scan	257
About the Fine Delta F scan	258
VFO frequency and a priority channel	259
DR mode and a priority channel	260
Section 13 USING AN SD CARD	262
About the SD card	263
Saving data onto the SD card	264
Inserting the SD card	265
Formatting the SD card	265
Removing the SD card	266
Removing the SD card while the transceiver’s power is ON	266
Saving the setting data onto an SD card	267
Saving with a different file name	268
Loading the saved data files that are on the SD card	269
Backing up the data stored on the SD card onto a PC	271
About the SD card’s folder contents	271
Making a backup file on your PC	272
Updating the repeater list	273
Cloning Transceiver-to-Transceiver using an SD card	276
Section 14 VOICE MEMORY FUNCTION	277
Recording a QSO audio	278
To start recording	278
To stop recording	278
Changing the recording mode	279
Playing back the recorded audio	280
Operation while playing back	281
Fast forward while playing	281
Rewind while playing	281
Pause while playing	281
Playing the previous file	281
Playing the next file	281
Moving to the beginning of the previous file	281
Moving to the beginning of the next file	281
VOICE PLAYER screen’s descriptions	281
Changing the skip time	282
Deleting the recorded contents (audio)	283
Deleting the folder	284
Continue to record even if no signals are received	285
Record the transmit and receive audio into the same file	286
Start to record when the [PTT] switch is pushed	287
Viewing the folder information	288
Viewing the file information	289
Viewing the SD card’s free space and recordable time	291
Playing back the voice memory data on a PC	292
Section 15 VOICE TX FUNCTION	293
Recording the voice audio	294
Playing back the recorded voice audio	295
Programming a memory name	296
Transmitting the recorded voice audio	298
Adjusting the TX volume level	299
Voice TX Set mode	300
Section 16 ANTENNA TUNER OPERATION	301
Connecting the antenna tuner	302
Connecting an AH-4	302
Connecting an AT-180	302
Connector information for the AT-180 ACC(2) socket	303
Specifications for the AH-4	303
Specifications for the AT-180	303
Operating the AH-4	304
Before operating	304
Operating	304
PTT tune function	304
Operating the AT-180	305
Before operating	305
Operating	306
Setting the AT-180 internal switches	307
Automatic tuner start (HF bands only)	307
PTT tune function	307
Section 17 SET MODE	308
Set mode description	309
The Set mode settings	309
Set mode items and Default settings	310
Voice Memo Set mode	318
DV Set mode	320
SPEECH Set mode	322
QSO/RX Log Set mode	323
Function Set mode	325
Tone Control Set mode	330
Connectors Set mode	330
Display Set mode	334
Time Set Set mode	337
Others Set mode	338
Section 18 DATA COMMUNICATION	339
Connections	340
When connecting to [DATA2]	340
When connecting to [ACC]	340
When connecting to [MIC]	340
Packet (AFSK) operation	341
Setting the data transmission speed	342
Adjusting the TNC output level	343
Using a level meter or synchroscope	343
Not using a measuring device	343
Section 19 MAINTENANCE	344
Cleaning	345
Replacing the fuses	345
Circuitry fuse replacement	345
DC power cable fuse replacement	345
Resetting the CPU	346
Partial reset	346
All reset	347
Data cloning	348
Cloning between transceivers using a mini plug cable	348
Cloning using a cloning software	349
Initial setup using an SD card	350
Importing the repeater list in a CSV format file	351
Programming and Exporting the repeater list in a CSV format file	352
Touch screen calibration function	353
Dial tuning tension adjustment	353
Protection function	353
External keypad connections	354
Band voltage modification	354
Troubleshooting	355
Transceiver power	355
Transmit and receive	355
Display	356
Scanning	356
While operating D-STAR	357
Section 20 CONTROL COMMAND	358
Remote jack (CI-V) information	359
CI-V connection example	359
Data format	359
Command table	360
Data content description	368
Section 21 SPECIFICATIONS AND OPTIONS	374
Specifications	375
General	375
Transmitter	375
Receiver	376
Options	377

Match case Limit results 1 per page

FUNCTIONS FOR RECEIVE

5-2

Preampliﬁer

The preampliﬁer ampliﬁes weak signals in the receiver

front end, to improve the S/N ratio and sensitivity.

Turn this function ON when receiving weak signals.

(Frequency band: HF, 50/70 MHz)

➥

Push

P.AMP

ATT

(

) one or more times to set the pre-

amp OFF, preamp 1 ON or preamp 2 ON.

• Either “P.AMP1” or “P.AMP2” is displayed when the pre

amp 1 or preamp 2 is ON.

• No icon is displayed when the preampliﬁer is OFF.

P.AMP1

Wide dynamic range preampliﬁer. It is most

effective for the 1.8 to 21 MHz bands.

P.AMP2

High-gain preampliﬁer. It is most effective

for the 24 to 70 MHz bands.

(Frequency band: 144/430 MHz)

➥

Push

P.AMP

ATT

(

) turn the Preampliﬁer ON or OFF.

• “P.AMP” appears when the preampliﬁer is ON.

• No icon is displayed when it’s OFF.

Attenuator

The attenuator prevents a desired signal from being

distorted when very strong signals are near the signal’s

frequency, or when very strong electromagnetic ﬁelds,

such as from broadcast stations are near your location.

These can both be independently set for each band.

➥

Hold down

P.AMP

ATT

(

)

for 1 second to turn ON the

Attenuator.

• “ATT” appears on the display when the Attenuator is ON.

➥

Push

P.AMP

ATT

(

) to turn it OFF.

✔

About the “P.AMP2” preampliﬁer

The preamp 2 is a high gain receive ampliﬁer. When

it is used in the presence of strong electromagnetic

ﬁelds, distortion sometimes results. In such cases,

use either the “P.AMP1” or “P.AMP OFF” setting.

Preamp 2 is most effective when:

•

Used on bands above 24 MHz and when signals are

weak.

•

Receive sensitivity is insufﬁcient when using low-

gain antennas, or while using a narrow band anten-

na. (such as small loop, a Beverage antenna or a

short Yagi antenna)

About the Preampliﬁer and Attenuator switching procedure

Push or hold down

P.AMP

ATT

(

) to switch the Preampliﬁer and Attenuator, as shown below.

Hold down

Push

ATT ON

Push

P.AMP

OFF

P.AMP

Push

ATT ON

P.AMP

OFF

P.AMP1

P.AMP2

P.AMP

ATT

P.AMP

ATT

P.AMP

ATT

Hold down

P.AMP

ATT

P.AMP

ATT

Push

P.AMP

ATT

• HF, 50/70 MHz frequency bands

• 144/430 MHz frequency bands

Preamp and attenuator

P.AMP

ATT

P.AMP

ATT