Icom IC-7600 Instruction Manual page 15

#9 PASSBAND TUNING CONTROLS [TWIN-PBT]
(p. 75)
Adjusts the recever's IF flter passband wdth va
the DSP.
• Passband wdth and shft frequency are dsplayed n
the mult-functon dsplay.
• Push and hold [PBT-CLR] for 1 sec. to clear the PBT
settngs.
• Adjustment range s set to half of the IF filter passband
wdth. 25 Hz steps and 100 Hz steps are avalable.
✔ What is the PBT control?
The PBT functon electroncally modfes the IF pass-
band wdth to reject nterference. Ths transcever uses
the DSP crcut for the PBT functon.
–
High cut Center
$0 PBT CLEAR SWITCH [PBT-CLR] (p. 75)
Push and hold for 1 sec. to clear the PBT settngs.
• The ndcator on ths swtch lghts green when PBT s n
use.
$1 NOTCH SWITCH [NOTCH] (p. 83)
➥ Swtches the notch functon between auto, man-
ual and OFF n SSB and AM modes.
• Ether auto or manual notch functon can be deact-
vated n others set mode. (p. 132)
➥ Turns the manual notch functon ON and OFF
when pushed n CW, RTTY and PSK mode.
➥ Turns the auto notch functon ON and OFF
when pushed n FM mode.
• " " appears when manual notch s n use.
• " " appears when auto notch s n use.
• No ndcator appears when the notch functon s not
n use.
➥ Push and hold for 1 sec. to swtch the manual
notch characterstcs from wde, mddle and nar-
row when manual notch functon s actvated.
• The ndcator on ths swtch lghts green when the
functon s actvated.
PBT2
PBT1
+
Low cut
PANEL DESCRIPTION
✔ What is the notch function?
The notch functon s a narrow flter that elmnates un-
wanted CW or AM carrer tones whle preservng the de-
sred voce sgnal. The DSP crcut automatcally adjusts
the notch frequency to effectvely elmnate unwanted
tones.
$2 ∂TX SWITCH [∂TX] (p. 87)
➥ Push to turn the ∂TX functon ON and OFF.
• Use [RIT/∂TX] control to vary the ∂TX frequency.
➥ Push and hold for 1 sec. to add the ∂TX shft
frequency to the operatng frequency.
✔ What is the ∂TX function?
∂TX shfts the transmt frequency wthout shftng the re-
ceve frequency. Ths s useful for smple splt frequency
operaton n CW, etc.
$3 CLEAR SWITCH [CLEAR] (pgs. 73, 87)
Push or push and hold for 1 sec.* to clear the RIT/
∂TX shft frequency.
* Dependng on the quck RIT/∂TX clear functon settng
(p. 132).
$4 TRANSMIT FREQUENCY CHECK SWITCH
[XFC]
➥ Montors the transmt frequency
when pushed and held durng
frequency offset)
splt frequency operaton. (p. 88)
• Whle pushng and holdng ths swtch, the transmt
frequency can be changed wth the man dal, key-
pad, memo pad or [∫]/[√] swtches.
• When the splt lock functon s turned ON, pushng
[XFC] cancels the dal lock functon. (pgs. 88, 129)
➥ Montors the operatng frequency drectly
when pushed and held when the RIT functon
s turned ON. (RIT s temporarly cancelled.)
(p. 73)
$5 MAIN/SUB•M.SCOPE SWITCH
[MAIN/SUB M.SCOPE]
➥ Push to select access to the man or sub read-
out. (p. 26)
• The selected readout frequency s dsplayed clearly.
The sub readout functons only durng splt operaton
or dualwatch.
➥ Push and hold for 1 sec. to turn the mn spec-
trum scope screen ndcaton ON and OFF.
(p. 67)
• The mn spectrum scope screen can be ndcated
wth another screen, such as memory, set mode
screen, smultaneously.
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