Icom IC-R75 Instruction Manual

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Icom IC-R75 Instruction Manual Manual pdf 14 page image

103 INSTALLATION AND CONNECTIONS■ Connecting to a PCTo 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 HFband data communications).e Set the receiver to the desired frequency as atright.r Set the connected terminal unit to the appropriatesettings.• Refer to the terminal unit’s instructions.The optional 250 Hz CW narrow filters may notp a s s RT T Y s i g n a l s. B e s u r e t o s e l e c t t h eappropriate IF filters corresponding to the signalwidth. (pgs. 18, 19)Frequency settings depend on the mode used.FM mode:[Setting frequency (displayed freq.)] = [Desiredfreq.]USB mode:[Setting frequency (displayed freq.)] = [Desiredfreq.] – [Center of Mark and Space freq.]CW narrow mode:[Setting frequency (displayed freq.)] = [Desiredfreq.] – [Center of Mark and Space freq.] + [600 Hz]LSB mode (for amateur RTTY):[Setting frequency (displayed freq.)] = [Desiredfreq.] + [Mark freq.]The RS-R75 remote control software is availableto perform data setting and remote control of thereceiver.Refer to the diagram below for connection.D System requirementsTo use this program, the following hardware andsoftware are required:• IBM PC compatible computer• An RS-232C serial port• Microsoft® Windows® 95 or Microsoft® Windows® 98• Intel i486DX4 processor or faster (Pentium ® 100MHz 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) connectionsTU or TNCAF INSQUELCH INto [REC]to [RECREMOTE]2-conductor 3.5(d) plugsPCPC IC-R75Supplied RS-232C cable (OPC-743)