Icom IC-7600 Instruction Manual page 11

$0 PASSBAND TUNING CONTROLS [TWIN-PBT]
(p. ??)
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.
–
High cut Center
$1 NOTCH SWITCH [NOTCH]
Switches the notch function between auto, man-
ual and OFF in SSB and AM modes.
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 nar-
row 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 un-
wanted CW or AM carrier tones while preserving the de-
sired voice signal. The DSP circuit automatically adjusts
the notch frequency to effectively eliminate unwanted
tones.
PBT1
PBT2
+
Low cut
(p. ??)
PANEL DESCRIPTION
$2 ∂TX SWITCH [∂TX]
(p. ??)
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 re-
ceive frequency. This is useful for simple split frequency
operation in CW, etc.
$3 CLEAR SWITCH [CLEAR]
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. ??).
$4 TRANSMIT FREQUENCY CHECK SWITCH
[XFC] (p. ??)
Monitors the transmit frequency
when pushed and held during split
quency offset)
frequency operation.
• 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.
$5 MAIN/SUB•M.SCOPE SWITCH
[MAIN/SUB•M.SCOPE]
Push to select access to the main or sub read-
out. (p. ??)
• 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 spec-
trum scope screen indication ON and OFF.
(p. ??)
• The mini spectrum scope screen can be indicated
with another screen, such as memory, set mode
screen, simultaneously.
1
(pgs. ??, ??)
(including ∂TX fre-
(p. ??)
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