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Table of Contents
Related Manuals for MFJ MFJ-1225
Summary of Contents for MFJ MFJ-1225
- Page 1 MFJ RTTY/CW COMPUTER INTERFACE MODEL MFJ-1225 OWNER'S MANUAL...
- Page 2 Thank you for purchasing the MFJ-1225 Interface. The MFJ-1225 will allow you to receive RTTY and CW when used with your receiver and computer. The MFJ-1225 converts the CW or AFSK tones from your receiver into computer compatible TTL level signals. The computer then translates these signals into the represented alpha-numeric characters and displays them on the screen.
- Page 3 BACK PANEL The MFJ-1225 provides inputs and outputs to allow interfacing to nearly any possible com- bination of computer and receiver. The paragraphs below describe their uses. Only a few of the available connections will be used for any given application; however, the availability of a variety of signals greatly enhances versatility of the interface.
- Page 4 INTERNAL CONTROLS The MFJ-1225 has two internal controls, as described below: INPUT LEVEL The input level pot is located in the rear, left corner. It is very important that the input is set to the proper level for use with your rig. First tune the radio until no signal is heard (static only) then set the volume slightly louder than your normal listening level.
- Page 5 the receiver until a Morse signal is heard. Starting with a low pitched tone, tune the receiver so that the pitch slowly rises. When the receiver is tuned properly, the PHASE LOCK and DATA LEDs should blink together in time with the CW tones. If the signal is very noisy, it will be necessary to set the volume of the receiver to a lower level.
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