Icom IC-7100 Advanced Instructions - Page 78
The functions for RTTY operation, About RTTY reverse mode, Twin Peak Filter
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Previous view 4 RECEIVE AND TRANSMIT The functions for RTTY operation DDAbout RTTY reverse mode Received characters are occasionally garbled when the Mark and Space signals are reversed. This reversal can be caused by incorrect TNC connections, setting or commands. To correctly receive reversed RTTY signals, select the RTTY reverse mode. qqOn the Mode selection screen, touch "RTTY" to select the RTTY mode. wwAfter the RTTY mode is selected, touch "RTTY" again on the Mode selection screen, toggles between the normal and reverse modes. • "RTTY-R" appears when the RTTY reverse mode is selected. Left Display Center Right The L, R, C or D in the instructions indicate the part of the controller. L: Left side R: Right side C: Center bottom D: Display (Touch screen) Normal 170 Hz 2125 Hz Reverse 2125 Hz 170 Hz Space Mark BFO BFO Space Mark DDTwin Peak Filter The Twin Peak Filter changes the receive frequency response by boosting 2125 and 2295 Hz for better copying of RTTY signals. qqIn the RTTY mode, push MENU (C) one or more times to select the "M-2" screen (Menu M-2). wwTouch [RTTY](D) to display the "RTTY SET" screen. eeTouch the "Twin Peak Filter" item to select. rrTouch "ON" to turn ON the Twin Peak Filter. ttTouch [](D) or push MENU (C) to return to the "M-2" screen (Menu M-2). NOTE: When the Twin Peak Filter is in use, the received audio output may increase. This is normal; not a malfunction. Touch [RTTY] Touch "Twin Peak Filter" Touch "ON" 4-13