ICOM 301500 Manual Do Utilizador

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4
RECEIVE AND TRANSMIT
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N Operating AM
q  Push and hold 
F-INP ENT
BAND
 for 1 sec., then push a 
band key to select the desired band.
w  Push 
MODE
 to select AM mode.
e  Rotate [DIAL] to tune in a desired signal.
 • 
 
The S-meter indicates received signal strength when a 
signal is received.
 • 
 
The default tuning step for AM mode is 1 kHz; this 
can be changed using the tuning step program mode. 
(p. 26)
r  Rotate the [AF] control to set audio to a comfort-
able listening level.
t  Push [PTT] (microphone) to transmit.
 • 
” appears.
y  Speak into the microphone at your normal voice 
level.
 • 
 
Adjust ‘MIC Gain’ at this step, if necessary. (p. 71)
u  Release [PTT] (microphone) to return to receive.
MODE
TUNER
TS
FILTER
SPCH
V/M
A/B
SPLIT
M-CL
SCAN
SET
ATT
P.AMP
COMP
VOX
MNF
RIT
1
2
3
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5
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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
[DIAL]
[AF]
Appears while transmitting.
F-INP ENT
BAND
Band keys
AM” appears.
D Convenient functions for receive
• Preamp and attenuator (p. 45)
±  Push 
P.AMP
ATT
 to turn the preamp ON or OFF.
 • 
” appears when the preamp is set to ON.
±  Push and hold 
P.AMP
ATT
 for 1 sec. to turn the attenu-
ator ON.
 • 
 
Push 
P.AMP
ATT
 to turn the attenuator OFF.
 • 
” appears when the attenuator is set to ON.
• AGC (auto gain control) (p. 45)
±  Push 
AGC
 once or twice to select the time con-
stant for the AGC circuit fast and slow.
 • 
 
F.AGC” appears when the fast time constant is se-
lected, and no indicator appears when the slow time 
constant is selected, respectively.
±  Push and hold 
AGC
 for 1 sec. to turn the AGC 
function OFF.
 • 
AGC-OFF” appears on the display.
• Noise blanker (p. 49)
±  Push 
NB
 to turn the noise blanker ON or OFF.
 • 
” appears when the noise blanker is set to ON.
±  Push and hold 
NB
 for 1 sec. to enter the noise 
blanker set mode, then rotate [DIAL] to adjust the 
threshold level, or the blank time.
 • 
Rotate 
[M-CH] to select an item.
• Twin PBT (passband tuning) (p. 46)
±
• Noise reduction (p. 50)
±  Push 
NR
 to turn the noise reduction ON or OFF.
 • 
” appears when the noise reduction is ON.
±  Push and hold 
NR
 for 1 sec. to enter the noise 
reduction level set mode, then rotate [DIAL] to 
adjust the noise reduction level.
• Manual notch filter (pgs. 51, 52)
±  Push 
MNF
 to turn the manual notch filter ON or 
OFF.
 • 
 
” appears when the manual notch filter is set to 
ON.
±  Push and hold 
MNF
 for 1 sec. to enter the man-
ual notch filter set mode, then rotate [DIAL] to se-
lect the filter width from narrow, middle and wide.
• Auto notch filter (p. 51)
±  Push 
ANF
METER
 to turn the auto notch filter ON or 
OFF.
 • 
 
” appears when the auto notch filter is set to 
ON.
D Convenient functions for transmit
• VOX (voice operated transmit) (p. 53)
±  Push 
VOX
 to turn the VOX function ON or OFF.
 • 
” appears when the VOX function is ON.
±  Push and hold 
VOX
 for 1 sec. to enter the VOX 
set mode, then rotate [DIAL] to adjust the VOX 
gain, anti VOX gain or VOX delay.
 • 
Rotate 
[M-CH] to select an item.