![background image](http://html.mh-extra.com/html/icom/ic-7600/ic-7600_instruction-manual_612307017.webp)
#9
PASSBAND TUNING CONTROLS [TWIN-PBT]
(p. 83)
Adjusts the receiver’s IF filter passband width via
the DSP.
• Passband width and shift frequency are displayed in
the multi-function display.
• Hold down
[PBT-CLR] for 1 second 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
–
+
Low cut
High cut
Center
$0
PBT CLEAR SWITCH [PBT-CLR] (p. 83)
Hold down for 1 second to clear the PBT settings.
• The indicator on this switch lights green when PBT is in
use.
$1
NOTCH SWITCH [NOTCH] (p. 91)
➥
Switches the notch function between auto,
manual and OFF in
the
SSB and AM modes.
• Either auto or manual notch function can be
deactivated in the Others set mode. (p. 140)
➥
Turns the manual notch function ON or OFF
when pushed in the CW, RTTY or PSK mode.
➥
Turns the auto notch function ON or OFF when
pushed in
the
FM mode.
• “
” appears when manual notch is in use.
• “
” appears when auto notch is in use.
• No indicator appears when the notch function is
OFF.
➥
Hold down for 1 second 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. 95)
➥
Push to turn the
∂
TX function ON or OFF.
• Use [RIT/
∂
TX] control to vary the
∂
TX frequency.
➥
Hold down for 1 second 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] (pp. 81, 95)
Push, or hold down for 1 second* to clear the
RIT/
∂
TX shift frequency.
* Depending on the quick RIT/
∂
TX clear function setting.
(p. 140)
$4
TRANSMIT FREQUENCY CHECK SWITCH
[XFC]
➥
Directly monitors the transmit frequency
(including
∂
TX frequency offset)
when held down
during split frequency operation. (p. 95)
• While holding down 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. (pp. 95, 137)
➥
Monitors the operating frequency directly when
held down when the RIT function is turned ON.
(RIT is temporarily cancelled.) (p. 81)
$5
MAIN/SUB•M.SCOPE SWITCH
[MAIN/SUB M.SCOPE]
➥
Push to select access to the main or sub
readout. (p. 28)
• The selected readout frequency is displayed clearly.
The sub readout functions only during split operation
or dualwatch.
➥
Hold down for 1 second to turn the mini
spectrum scope screen display ON or OFF.
(p. 73)
• The mini spectrum scope screen can be displayed
with another screen, such as memory, set mode
screen, simultaneously.
8
1
PANEL DESCRIPTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Summary of Contents for IC-7600
Page 1: ...INSTRUCTION MANUAL HF 50 MHz TRANSCEIVER i7600 ...
Page 192: ...MEMO ...
Page 193: ...MEMO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 ...
Page 194: ...MEMO ...
Page 195: ...MEMO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 ...