Icom IC-R20 Instruction Manual - Page 34

AFC function, NB/ANL function - specifications

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4 BASIC OPERATION ■ AFC function The AFC (Automatic Frequency Control) function tunes the displayed frequency automatically when an off-center frequency is received. It activates in FM/WFM modes only with single band operation. ➥ Push [0 AFC] to toggle the AFC function ON and OFF. • "AFC" appears when the AFC function is in use. DUALWATCH MAIN/SUB POWER BAND DIAL.SEL VFO MHz SWEEP 1 2 T-SCAN SKIP 4 5 TONE SET 7 8 ATT RF GAIN MODE SCAN CENTER MR S.MW 3 SCOPE M.N 6 0 AFC TS 9 LOCK IC Recorder REC 0 AFC "AFC" appears while the AFC function is in use. -DUP TSQL AFC MODE FM ANL 1260 000 √ ATT PSKIP " " or " " appears when an off-frequency is received. NOTE: The AFC function is not available during dualwatch operation. ■ NB/ANL function The NB (noise blanker) function removes pulse-type noise when USB, LSB or CW mode is selected. The ANL (Automatic Noise Limitter) function reduces noise components when AM mode is selected. "NB" appears while the NB function is in use. -DUP TSQL MODE USB NB AFC 145100 PSKIP √ "ANL" appears while the ANL function is in use. -DUP TSQL MODE AM ANL AFC 51100 PSKIP √ See page 22 for setting details. NOTE: No display indication appears during dualwatch operation, but both functions are active while in specific modes. 21

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21
4
BASIC OPERATION
■
AFC function
The AFC (Automatic Frequency Control) function tunes the
displayed frequency automatically when an off-center fre-
quency is received. It activates in FM/WFM modes only with
single band operation.
➥
Push
[0 AFC]
to toggle the AFC function ON and OFF.
• “AFC” appears when the AFC function is in use.
NOTE:
The AFC function is not available during dualwatch
operation.
■
NB/ANL function
The NB (noise blanker) function removes pulse-type noise
when USB, LSB or CW mode is selected. The ANL (Auto-
matic Noise Limitter) function reduces noise components
when AM mode is selected.
See page 22 for setting details.
NOTE:
No display indication appears during dualwatch op-
eration, but both functions are active while in specific
modes.
√
MODE
ANL
AFC
TSQL
AM
51100
PSKIP
-DUP
√
MODE
NB
AFC
TSQL
USB
145100
PSKIP
-DUP
“NB” appears while the
NB function is in use.
“ANL” appears while the
ANL function is in use.
ATT
√
MODE
ANL
AFC
TSQL
FM
1260000
PSKIP
-DUP
DIAL.SEL
SWEEP
CENTER
T-SCAN
SKIP
M.N
TONE
SET
TS
ATT
RF GAIN
IC Recorder
1
2
3
4
5
6
0
7
8
9
BAND
DUALWATCH
MAIN/SUB
POWER
VFO
MHz
MODE
SCAN
MR
S.MW
SCOPE
LOCK
REC
AFC
“AFC” appears while the
AFC function is in use.
0
AFC
“
”
“
”
or
an off-frequency is received.
appears when