Оборудование информацию:

Icom IC-745 Приемопередатчик
Производитель:
Icom
Модель: IC-745
Дата:
Категория: Радио, Связь
Группа: Приемопередатчик
Описание: HF All Band Transceiver General Coverage Receive
Информация:
                                    ALL BAND, ALL MODE, ALL SOLID-STATE

The IC-745 covers all the Amateur HF frequencies from 1.8MHz
to 29.700MHz, including the new three bands of 10MHz, 18MHz
and 24MHz. It offers not only SSB, but also CW, AM (Receive
only), FM (Option) and RTTY. All of the circuits in the
IC-745, including the driver and final power stages are
completely solid-state, and provide about 100 watts output.

GENERAL COVERAGE RECEIVER CAPABILITY

The IC-745 has capabilities for an all amateur band
transceiver as well as a general coverage receiver between
100KHz and 30MHz with continuous tuning. The Up-conversion
system using a high side IF and Microcomputer Control System
make these capabilities possible.

In addition to these, the low-pass filters and the band-pass
filters are selected by an electric signal from the CPU and
it makes a no tune-up system.

DUAL VFO

Dual VFO's controlled by a large tuning knob provide easy
access to split frequencies used in DX operation. Normal
tuning rate is in 10Hz increments and increasing the speed
of rotation of the main tuning knob shifts the tuning to
50Hz increments automatically. Pushing the tuning speed
button gives 1KHz tuning.

16 MEMORIES

Sixteen tunable memories are provided to store mode,
HAM/GENERAL COVERAGE mode, and frequency, and the RAM is
backed up by an internal lithium memory backup battery to
maintain the memories for up to seven years. Scanning of
frequencies, memories and bands are possible from the unit,
or from the IC-HM12 scanning microphone. Data may be
transferred between VFO's, or from VFO to memories.

OUTSTANDING RECEIVER PERFORMANCE

Utilizing an ICOM developed Double Balanced Mixer, the
IC-745 has a 100dB dynamic range. The 70.4515MHz first IF
virtually eliminates spurious responses, and a high gain
9.0115MHz second IF, with ICOM's PBT provides the ultimate
in selectivity. A deep IF notch filter, adjustable AGC and
noise blanker (can be adjusted to eliminate the woodpecker),
audio tone control, plus RIT provide clear reception even in
the presence of strong QRM or high noise levels. A low noise
receiver preamp provides exceptional reception sensitivity
as required.

TRANSMITTER

The transmitter features high reliability transistors in a
low IMD (—38dB ~100W), full 100% duty cycle (internal
cooling fan standard), 12 volt DC design. Quiet relay
selection of transmitter LPF's, transmit audio tone control,
monitor circuit (to monitor your own CW or SSB signal), XIT,
and a high performance speech processor enhance the IC-745
transmitter's operation. For the CW operator, optional keyer
and semi break-in are provided for smooth and fast keying.

OTHER FEATURES

All of the above features plus full function metering, SSB
and FM squelch, convenient large controls, a large selection
of filters, and a high visibility flourescent display make
the IC-745 your best choice for a superior grade HF base
transceiver.

Эти руководства доступны для вышеуказанного оборудования:

Icom -- IC-745 -- Обслуживание и Руководство пользователя
Имя файла: Icom-5429-Manual-Page-1-Picture
Руководство Тип: Обслуживание и Руководство пользователя
Страницы: 38
Размер: 4.75 Mbytes (4983791 Bytes)
Язык: английский
Редакция:
Manual-ID/Number: A-0507
Дата:
Качество: Отсканированы документу, все читается.
Дата публикации:
MD5: a622359742d31c9633f82f239202df68
Скачиваний: 343 начиная с 26 Январь 2014
Информация:
SECTION 1
SPECIFICATIONS.................................................
1

SECTION 2
FEATURES...................................................... 2

SECTION 3
INSTALLATION.................................................. 3

SECTION 4 OPERATING
CONTROLS........................................... 6

4- 1 FRONT
PANEL............................................... 6

4- 2 TOP
COVER................................................. 9

4-	3 REAR PANEL CONNECTIONS.................................. 10

SECTION 5 OPERATING
INSTRUCTIONS....................................... 11

5-	1 HOW TO
TUNE.............................................. 11

5- 2 MEMORY CHANNEL OPERATION.............................. 15

5- 3 TUNING BY UP/DOWN BUTTONS ON THE MICROPHONE.........16

5- 4 SCANNING
OPERATION.......................................*17

5-5 SSB OPERATION.............................................18

5-6 CW OPERATION..............................................21

5- 7 RTTY OPERATION...........................................21

5-8 AM OPERATION..............................................22

5- 9 FM OPERATION (OPTION)....................................22

5-10 GENERAL COVERAGE RECEIVER..............................23

5-11 OTHER OPERATIONS.........................................23

SECTION 6 OPTION
INSTALLATION...........................................25

SECTION 7 INSIDE
VIEWS...................................................31

SECTION 8
TROUBLESHOOTING..............................................33

SECTION 9 BLOCK
DIAGRAM................................................34

SECTION 10 SCHEMATIC
DIAGRAM.....................................SEPARATE
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Icom -- IC-745 -- Руководство по техническому обслуживанию
Имя файла: Icom-5430-Manual-Page-1-Picture
Руководство Тип: Руководство по техническому обслуживанию
Страницы: 126
Размер: 18.05 Mbytes (18926408 Bytes)
Язык: английский
Редакция:
Manual-ID/Number: A-0504
Дата:
Качество: Отсканированы документу, все читается.
Дата публикации:
MD5: bea509ebc1e5f29657b951b380a0b054
Скачиваний: 416 начиная с 26 Январь 2014
Информация:
SECTION 1
SPECIFICATIONS........................................ 1 - 1

SECTION 2 OPERATING
CONTROLS.................................. 2-1-5

SECTION 3 OPERATING
INSTRUCTIONS.............................. 3- 1-15

3- 1 HOW TO TUNE...................................... 3- 1

3- 2 MEMORY CHANNEL OPERATION...................... 3- 5

3- 3 TUNING BY UP/DOWN BUTTONS ON THE MICROPHONE. 3- 6

3- 4 SCANNING OPERATION............................... 3- 7

3- 5 SSB OPERATION..................................... 3- 8

3 - 6 CW OPERATION...................................... 3-11

3- 7 RTTY OPERATION................................... 3-11

3- 8 AM OPERATION...................................... 3-12

3- 9 FM OPERATION (OPTION)..,.......................... 3-12

3-10 GENERAL COVERAGE RECEIVER....................... 3-13

3-11	OTHER OPERATIONS................................. 3-13

SECTION 4 CIRCUIT
DESCRIPTION.................................. 4- 1-12

4-	1 RECEIVER CIRCUITS................................. 4- 1

4- 2 TRANSMITTER CIRCUITS............................. 4- 3

4- 3 PLL CIRCUITS....................................... 4- 5

4- 4 LOGIC CIRCUITS..................................... 4- 8

SECTION 5 BLOCK
DIAGRAM....................................... 5- 1

SECTION 6 INSIDE
VIEWS.......................................... 6-1-2

SECTION 7 OPTIONS
INSTALLATION................................. 7-1-6

SECTION 8 MECHANICAL PARTS AND DISASSEMBLY.................
8- 1-11

SECTION 9 MAINTENANCE AND ADJUSTMENT.......................
9-1-6

SECTION 10 VOLTAGE (CIRCUIT)
DIAGRAMS.......................... 10- 1-12

SECTION 11 IC
RATINGS............................................ 11- 1- 6

SECTION 12 PARTS
LIST............................................ 12- 1-21

SECTION 13 SCHEMATIC
DIAGRAM................................... 13- 1

SECTION 14 BOARD
LAYOUT........................................ SEPARATE
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Comments (2)

 
 
Topic: Icom IC-745
0/5 (0)
 
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Zika
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May 2016
Zika says...
Thanks, just try to repair a RAM unit an build a 9MHz CW Filter
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New
yu2aa
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0
Dec 2015
First Poster
yu2aa says...
TU & 73

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