Icom IC-7600 Instruction Manual - Page 15

1 PANEL DESCRIPTION #9 P ASSBAND TUNING CONTROLS [TWIN-PBT] (p. 75) Adjusts the receiver's IF filter passband width via the DSP. • Passband width and shift frequency are displayed in the multi-function display. • Push and hold [PBT-CLR] for 1 sec. to clear the PBT settings. • Adjustment range is set to half of the IF filter passband width. 25 Hz steps and 100 Hz steps are available. ✔ What is the PBT control? The PBT function electronically modifies the IF passband width to reject interference. This transceiver uses the DSP circuit for the PBT function. PBT2 PBT1 - + High cut Center Low cut $0 PBT CLEAR SWITCH [PBT-CLR] (p. 75) Push and hold for 1 sec. to clear the PBT settings. • The indicator on this switch lights green when PBT is in use. $1 NOTCH SWITCH [NOTCH] (p. 83) ➥ Switches the notch function between auto, manual and OFF in SSB and AM modes. • Either auto or manual notch function can be deactivated in others set mode. (p. 132) ➥ Turns the manual notch function ON and OFF when pushed in CW, RTTY and PSK mode. ➥ Turns the auto notch function ON and OFF when pushed in FM mode. • " " appears when manual notch is in use appears when auto notch is in use. • No indicator appears when the notch function is not in use. ➥ Push and hold for 1 sec. to switch the manual notch characteristics from wide, middle and narrow when manual notch function is activated. • The indicator on this switch lights green when the function is activated. ✔ What is the notch function? The notch function is a narrow filter that eliminates unwanted CW or AM carrier tones while preserving the desired voice signal. The DSP circuit automatically adjusts the notch frequency to effectively eliminate unwanted tones. $2 ∂TX SWITCH [∂TX] (p. 87) ➥ Push to turn the ∂TX function ON and OFF. • Use [RIT/∂TX] control to vary the ∂TX frequency. ➥ Push and hold for 1 sec. to add the ∂TX shift frequency to the operating frequency. ✔ What is the ∂TX function? ∂TX shifts the transmit frequency without shifting the receive frequency. This is useful for simple split frequency operation in CW, etc. $3 CLEAR SWITCH [CLEAR] (pgs. 73, 87) Push or push and hold for 1 sec.* to clear the RIT/ ∂TX shift frequency. * Depending on the quick RIT/∂TX clear function setting (p. 132). $4 T RANSMIT FREQUENCY CHECK SWITCH [XFC] ➥ Monitors the transmit frequency (including ∂TX frequency offset) when pushed and held during split frequency operation. (p. 88) • While pushing and holding this switch, the transmit frequency can be changed with the main dial, keypad, memo pad or switches. • When the split lock function is turned ON, pushing [XFC] cancels the dial lock function. (pgs. 88, 129) ➥ Monitors the operating frequency directly when pushed and held when the RIT function is turned ON. (RIT is temporarily cancelled.) (p. 73) $5 M AIN/SUB•M.SCOPE SWITCH [MAIN/SUB M.SCOPE] ➥ Push to select access to the main or sub readout. (p. 26) • The selected readout frequency is displayed clearly. The sub readout functions only during split operation or dualwatch. ➥ Push and hold for 1 sec. to turn the mini spectrum scope screen indication ON and OFF. (p. 67) • The mini spectrum scope screen can be indicated with another screen, such as memory, set mode screen, simultaneously. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21