Icom IC-7610 Instruction Manual basic - Page 40

4 RECEIVING AND TRANSMITTING Split Lock function To prevent accidentally changing the receive frequency by releasing XFC while rotating MAIN DIAL , use the Split Lock function. Using both this function and the Dial Lock function (p. 3-6) enables you to change only the transmit frequency. 1. Turn ON the Split Lock function. MENU » SET > Function > SPLIT > SPLIT LOCK 2. Turn ON the Split function. 3. Hold down SPEECH for 1 second to turn ON the Dial Lock function. 4. While holding down XFC , set the transmit frequency. Operating CW DDSetting the CW pitch control You can adjust the received CW audio pitch and CW side tone to suit your preference without changing the operating frequency. 1. Select the CW mode. 2. Hold down FILTER for 1 second. ••The FILTER screen is displayed. LThe FILTER screen graphically displays the CW pitch. Displayed when the Dial Lock function is ON. CW pitch frequency display 3. Rotate KEY SPEED PITCH (outer) to adjust to between 300 to 900 Hz. Setting the transmit filter width You can select the transmit filter width for the SSB mode to WIDE (wide), MID (middle) or NAR (narrow). 1. Set the operating mode to USB or LSB. 2. Touch [COMP] for 1 second. ••Opens the COMP menu on the right side of the screen. 3. Touch [TBW]. LTouching [TBW] sets the filter width to WIDE, MID or NAR. COMP menu KEY SPEED PITCH When the selected IF filter is: ••Below 500 Hz, the CW pitch frequency is graphically changed in 5 Hz steps. ••Above 600 Hz, the CW pitch frequency is graphically changed in 25 Hz steps. 4. To close the FILTER screen, push EXIT . LThe transmit filter widths are set to the following values by default. ••WIDE: 100 Hz to 2900 Hz ••MID: 300 Hz to 2700 Hz ••NAR: 500 Hz to 2500 Hz You can change the filter width values in the following settings. (p. 8-2) MENU » SET > Tone Control > TX > SSB > TBW (WIDE) MENU » SET > Tone Control > TX > SSB > TBW (MID) MENU » SET > Tone Control > TX > SSB > TBW (NAR) 4-10