MFJ RTTY/CW
COMPUTER INTERFACE
MODEL MFJ-1225
OWNER'S MANUAL
Page 1: ...MFJ RTTY CW COMPUTER INTERFACE MODEL MFJ 1225 OWNER S MANUAL...
Page 2: ...t panel controls and indicators consist of five push button switches and three LEDS From left to right they are as follows ON OFF This switch controls the power to the interface POWER LED This indicat...
Page 3: ...ins are as follows RTTY INV This pin produces an inverted TTL level version a received RTTY signal CW INV This pin provides an inverted TTL level version a received CW signal GND This pin provides the...
Page 4: ...supply to the POWER jack of the interface 2 A shielded audio cable from the external speaker jack of the receiver to the AUDIO in jack of the interface 3 If desired a speaker may be connected to the S...
Page 5: ...y 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 In both RTTY ASCII an...
