Informações do equipamento
Icom IC-740 Transceiver
Fabricante:

Imagem 1 de 1
Se você tiver quaisquer outras fotos ou manuais para os
Icom IC-740 você pode carregar os arquivos aqui .
Modelo:
IC-740
Data:
Categoria:
Grupo:
Descrição:
HF All Band Transceiver
Informações
ALL BAND, ALL MODE, ALL SOLID STATE
The 1C-740 covers all the Amateur HF frequencies from 1.8MHz
to 29.9999MHz, including the new three bands of 10MHz, 18MHz
and 24MHz. It offers not only SSB, but also CW and RTTY (FM
option). All of the circuits in the IC-740, including the
driver and final power stages are completely solid state,
and provide about 100 watts output.
In addition, the low-pass filters switched by the BAND
switch and the band-pass filters selected by an electronic
signal from the CPU, make a no tune-up system.
OUTSTANDING Receiver PERFORMANCE
The IC-740 employs the Icom DFM (Direct Feed Mixer) system
and up-conversion system to improve a high Receiver performance.
The Icom DFM maintains a system where the incoming signals
are directly fed to the first mixer, and the mixer is a high
level Doubly Balanced Mixer developed exclusively by Icom.
The up-conversion system uses a high side IF i.e.,
39.7315MHz and in addition high performance third over-tone
crystal filters provide excellent image and IF rejection ratio.
These advanced devices and system give higher spurious
response rejection ratio, higher sensitivity and wider
dynamic range.
PASS BAND SHIFT CONTROL
The IC-740 has a built-in Pass Band Shift system that allows
you to continuously adjust the center frequency of the IF
pass-band. By moving the control, you can eliminate
interference from a nearby signal, thus providing clear
reception. It can also be used as a tone control.
When the PBT switch is pushed in, this system acts as a
pass-band tuning system that allows you to continuously
adjust the pass-band up to 800Hz from the upper or lower
side in SSB and CW. The PBT switch provides better
performance to eliminate interference.
DUAL DIGITAL VFO WITH VARIOUS STEPS
The dual digital VFO consists of three digital
Phase-Locked-Loops which are controlled by the Microcomputer
Control System.
Three tuning frequency resolutions of 10Hz, 100Hz and 1 KHz
steps can be selected with the TUNING RATE switches.
Two separate VFO's can be used independently in the NORMAL
(NOR) operation, and any desired in-band frequencies split
transmit/receive can be used in the SPLIT (SPT) operation.
MEMORY CHANNELS
The IC-740 has a frequency memory for each band. Any in-band
frequency of the VFO A can be stored into the memory, and it
can be recalled at any time.
ADDITIONAL CIRCUITS
The IC-740 has a built-in Noise Blanker, VOX, CW Monitor,
APC, SWR detector, and many other circuits for your convenience.
The IC-740 has everything you need to really enjoy HF
operation, in an extremely compact, rugged and full featured
transceiver.
Tipo manual:
Manual do Usuário
Páginas:
28
Tamanho:
11.11 Mbytes (11652242 Bytes)
Idioma:
german
Revisão:
Manual-ID:
Data:
Qualidade:
Scaned documento, todas legível.
Upload de data:
22 Dezembro 2018
MD5:
877eaaab325dd90f9edab73b98586d3a
Uploader:
DK7DM
Downloads:
502
Informações
Abschnitt 1 Technische Daten
... 1
Abschnitt 2 Besondere
Eigenschaften ... 2
Abschnitt 3 Anschließen des Gerätes
... 3
Abschnitt 4 Bedienungselemente
... 6
4.1 Frontseite ... 6
4.2 Bedienungselemente auf der Oberseite ... 9
4.3 Anschlüsse an der Rückseite ... 9
Abschnitt 5 Bedienungsanleitung
... 11
5.1 Abstimmung ... 11
5.2 SSB-Betrieb ... 14
5.3 CW-Betrieb ... 16
5.4 RTTY-Betrieb ... 17
5.5 FM-Betrieb (mit Sonderzubehör FM-Einheit) ... 18
5.6 Weitere Betriebsarten ... 18
Abschnitt 6 Innenansichten
... 20
Abschnitt 7 Fehlersuche
... 24
Abschnitt 8 Blockschaltbild
... 25
Schaltbild nur im englischen Handbuch
Tipo manual:
Serviço e Manual do Usuário
Páginas:
38
Tamanho:
3.87 Mbytes (4061711 Bytes)
Idioma:
english
Revisão:
Manual-ID:
A-0414A
Data:
Qualidade:
Scaned documento, todas legível.
Upload de data:
14 Maio 2017
MD5:
9041866664b8501b8ac1a07078399e65
Downloads:
435
Informações
1 SPECIFICATIONS ...
2 FEATURES ...
3 INSTALLATION ...
4 OPERATING CONTROLS ...
4-1 FRONT PANEL ...
4-2 TOP COVER ...
4-3 REAR PANEL CONNECTIONS
5 OPERATING INSTRUCTIONS ...
5- 1 HOW TO TUNE ...
5-2 SSB OPERATION ...
5-3 CW OPERATION ...
5-4 RTTY OPERATION ...
5-6 OTHER OPERATIONS ...
6 CIRCUIT DESCRIPTION ...
7 INSIDE VIEWS ...
8 OPTION INSTALLATION ...
9 TROUBLESHOOTING ...
10 BLOCK DIAGRAM ...
11 SCHEMATIC DIAGRAM ...
12 BOARD LAYOUT ...
Add Comment
Insert Link
Please enter the link of the website
Optionally you can add display text
Insert Email
Please enter the email address
Optionally add any display text
Insert Image
Please enter the link of the image
Insert YouTube Video
Please enter the link of the video
Privacy Policy
This policy contains information about your privacy. By posting, you are declaring that you understand this policy:
- Your name, rating, website address, town, country, state and comment will be publicly displayed if entered.
- Aside from the data entered into these form fields, other stored data about your comment will include:
- Your IP address (not displayed)
- The time/date of your submission (displayed)
- Your email address will not be shared. It is collected for only two reasons:
- Administrative purposes, should a need to contact you arise.
- To inform you of new comments, should you subscribe to receive notifications.
- A cookie may be set on your computer. This is used to remember your inputs. It will expire by itself.
This policy is subject to change at any time and without notice.
Terms and Conditions
These terms and conditions contain rules about posting comments. By submitting a comment, you are declaring that you agree with these rules:
- Although the administrator will attempt to moderate comments, it is impossible for every comment to have been moderated at any given time.
- You acknowledge that all comments express the views and opinions of the original author and not those of the administrator.
- You agree not to post any material which is knowingly false, obscene, hateful, threatening, harassing or invasive of a person's privacy.
- The administrator has the right to edit, move or remove any comment for any reason and without notice.
Failure to comply with these rules may result in being banned from submitting further comments.
These terms and conditions are subject to change at any time and without notice.
Comments