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Summary of Contents for TELEREADER CWR-880
- Page 1 OPERATING INSTRUCTIONS TELEREADER MODEL CWR-880...
- Page 2 The TELEREADER CWR-880 you have purchased is a new model of the communication computer system which incorporates many improvements through the experiences since we released the first model of the TELEREADER. Read through this manual t enjoy the TELEREADER's performance to the maximum for a long ser- vice life. CONTENTS 1st Features of CWR-880 ................
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Page 3: Specifications
4th Built-in CW random signal generator provides for practice in telegraph reception. 5th By directly connecting a key to the CWR-880, you can practice telegraph transmission. 6th In RTTY, the CWR-880 can be used as a test code generator because the test code generating function is provided in every mode. - Page 4 5) Output VIDEO OUT: composite video signal, NTSC system. RF OUT: UHF (591.25 MHz) NTSC system. Printer: Centronics compatible parallel data transmission. KEY OUT: Key output for transmission and test code output (Transistor switching for + keying). 6) Number of characters displayed CRT: 40 characters ×...
- Page 5 After making sure that the stabilized power source provides voltage within the range from 12 V to 14 V, turn off the the power switches of the power source and the CWR-880. Then connect the red wire of the CWR-880's power cable to the positive terminal and the black wire to the negative terminal of the power source.
- Page 6 CWR-880 can use almost all printers which are used with personal computers. A print- er is to be connected with the printer cable available as an optional accessory. Since LF is the only code for line feed on the CWR-880, set up the printer to enable printing with line feed.
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Page 7: Front Panel Controls
4 – FRONT PANEL CONTROLS 1) POWER: Power switch 2) MONI: Volume adjustment of audio monitor 3) TONE: Frequency adjustment of input audio signal 750 Hz – 850 Hz, continuously changeable RTTY: 1275 Hz – 2125 Hz, continuously changeable 4) CW/RTTY: CW (telegraph) / RTTY (radio teletype) selector pushbutton switch 5) MODE: Operation mode selector pushbutton In CW operation: Alphabetical letters... -
Page 8: Connection On Rear Panel
13) POWER Power indicator LED 14) CW Telegraph synchronization indicator LED 15) MARK RTTY synchronization indicator LED SPACE 5 – CONNECTION ON REAR PANEL 1) AF IN: Input terminal for audio signal. 2) EXT SP: Output terminal for external speaker (Connected to AF IN internally.). 3) KEY IN: CW operation: Input terminal for key. - Page 9 800 Hz. 4) Set the TONE control knob of the CWR-880 at the center position and tune the receiver to re- ceive 800 Hz signal. CW LED will flicker in synchronization with the reception sound and de- coded characters will be shown on the display monitor.
- Page 10 1) Turn on the power switch and a message "MORSE ENG" will appear. 2) Connect a key to the KEY IN (TTL IN) terminal of the CWR-880 and strike Morse code. The de- coded characters will be shown on the display.
- Page 11 6) Press the GEN button again to stop the test code generation. 11 – TOR The CWR-880 is equipped with TOR mode decoder function which is not widely known. Here the outline of the TOR mode and the operating procedure will be explained.
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