Icom IC-7850 Instruction Manual - Page 83

Previous view 5 RECEIVE AND TRANSMIT ■■Operating CW (Continued) DDAbout the CW pitch control The received CW audio pitch and CW side tone can be adjusted to suit your preference. This does not change the operating frequency. qqRotate [CW PITCH] to suit your preference. • Adjustable between 300 to 900 Hz in 5 Hz steps. wwHold down [FILTER] for 1 second. • The Filter screen is displayed. • The Filter screen graphically displays the CW pitch. (Shown to the right.) Digital IF filter Filter screen Passband width The CW pitch frequency is Below 500 Hz changed in 5 Hz steps. • " #1' " is displayed. The CW pitch frequency is Above 600 Hz changed in 25 Hz steps. • " #1' " disappears. eePush [EXIT/SET]. • Exits the Set screen. • Filter screen CW PITCH display (Example: 700 Hz) [CW PITCH] DDAPF (Audio Peak Filter) operation The APF changes the audio frequency response by boosting a particular frequency to enhance a desired CW signal. qqIn the CW mode, push [APF/TPF] to turn the audio peak filter ON or OFF. • "APF" is displayed and the [APF/TPF] indicator above this key lights white. wwHold down [APF/TPF] for 1 second. • Hold down [APF/TPF] for 1 second selects the Audio filter width. APF type* SOFT SHARP Filter width WIDE, MID, NAR 320 Hz, 160 Hz, 80 Hz * The audio filter shape is also selectable between "SOFT" and "SHARP" in the "APF TYPE" item of the Others set screen. (p. 15-14) (SET [F-7] > OTHERS [F-5] > APF TYPE) eeRotate the [DIGI-SEL] control to suit your preference. • The peak frequency can be adjusted with the [DIGI-SEL] control when "APF" is selected in the "DIGI-SEL VR Operation" item of the Others set screen (p. 15-15). (SET [F-7] > OTHERS [F-5] > DIGI-SEL VR Operation) The APF audio level can be adjusted in the Level set screen (p. 15-5). (SET [F-7] > LEVEL [F-1] > APF AF LEVEL) 5-6 APF/TPF indicator MAIN, SUB [APF/TPF] MAIN, SUB [DIGI-SEL] MAIN, SUB