ICOM IC-R75 Manuale Utente

Pagina di 48
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INSTALLATION AND CONNECTIONS
 Connecting to a PC
To connect a terminal unit, TNC or scan converter, 
refer to the diagram below.
q
 Connect a terminal unit as below.
w
  Select RTTY mode (or USB, CW modes for HF 
band data communications).
e
  Set the receiver to the desired frequency as at 
right.
r
  Set the connected terminal unit to the appropriate 
settings.
  • Refer to the terminal unit’s instructions.
  The optional 250 Hz CW narrow filters may not 
pass  RTTY  signals.  Be  sure  to  select  the 
appropriate IF filters corresponding to the signal 
width. (pgs. 18, 19)
Frequency settings depend on the mode used.
  FM mode: 
  [Setting frequency (displayed freq.)] = [Desired 
freq.]
 USB mode: 
  [Setting frequency (displayed freq.)] = [Desired 
freq.] – [Center of Mark and Space freq.]
 CW narrow mode: 
  [Setting frequency (displayed freq.)] = [Desired 
freq.] – [Center of Mark and Space freq.] + [600 Hz]
  LSB mode (for amateur RTTY): 
  [Setting frequency (displayed freq.)] = [Desired 
freq.] + [Mark freq.]
The RS-R75 remote control software is available 
to perform data setting and remote control of the 
receiver.
Refer to the diagram below for connection.
D System requirements
To use this program, the following hardware and 
software are required:
• IBM PC compatible computer
• An RS-232C serial port
•  Microsoft
®
 Windows
®
 95 or Microsoft
®
 Windows
®
 98
•  Intel i486DX4 processor or faster (Pentium
®
 100 
MHz or faster recommended)
• At least 16 MB RAM
• At least 10 MB of hard disk space
• At least 640 × 480 pixel, high color (16 bit) display
 FSK and AFSK (SSTV) connections
TU or TNC
AF IN
SQUELCH IN
to [REC]
to [REC 
REMOTE]
2-conductor 3.5(d) plugs
PC
PC
IC-R75
Supplied RS-232C cable (OPC-743)