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PASSBAND TUNING CONTROLS [TWIN PBT]
Adjust the receiver’s DSP filter passband width.
(p. 46)
• The limit of the variable range depends on the pass-
band width and mode. The limit of the variable range
is half of the passband width, and PBT is adjustable in
200 Hz (AM) or 50 Hz (other models) steps.
• Rotate both [TWIN PBT] controls (PBT1 and PBT2) to
the same position shifts the IF.
4
What is the PBT control?
Generally, the PBT electronically narrows the IF
passband width to reject interference. This trans-
ceiver uses the DSP circuit for the PBT function.
PBT2
PBT1
Low cut
High cut
Center
TWIN PBT
TWIN PBT
TWIN PBT
–
+
w
NOISE BLANKER KEY
NB
(p. 49)
➥
Push to turn the noise blanker function ON or
OFF.
• “
” appears on the display.
➥
Push and hold for 1 sec to enter the noise
blanker set mode for setting the noise blanker
level and blank time; push again to return to nor-
mal operation.
• When entering the noise blanker set mode, the noise
blanker function is automatically turned ON.
4
What is the noise blanker?
The noise blanker reduces pulse-type noise such
as that generated by automobile ignition systems.
This function is not effective against non pulse-type
noise.
e
NR KEY
NR
(p. 50)
➥
Push to turn the noise reduction function ON or
OFF.
• “
” appears on the display.
➥
Push and hold for 1 sec. to enter the noise re-
duction level set mode; push again to return to
normal operation.
• When entering the noise reduction set mode, the
noise reduction function is automatically turned ON.
4
What is the Noise Reduction function?
The Noise Reduction (NR) function removes ran-
dom noise from the receiver passband. The level is
adjustable to allow maximum clarity without harm-
ing the intelligibility of the desired signal. Noise Re-
duction should generally not be used with digital
modes.
1
1
PANEL DESCRIPTION
i7200
MODE
TUNER
TS
FILTER
SPCH
V/M
A/B
SPLIT
M-CL
SCAN
SET
ATT
P.AMP
COMP
VOX
MNF
RIT
1
2
3
4
5
6
7
8
0
50
28
18
14
10
21
24
=
7
3.5
1.8
F-INP
M-CH/RIT
ENT
BAND
GENE
9
.
AGC
MW
ANF
METER
NR
NB
Speaker
t
r
e
w
Function
Display (p. 7)
u
i
y
q
o
■
Front panel