52
5
FUNCTIONS FOR RECEIVE
2001 NEW
■ Noise reduction
The noise reduction function reduces noise compo-
nents and picks out desired signals which are buried
in noise. The received signals are converted to digital
signals and then the desired signals are separated
from the noise.
q Push the [NR] switch to turn the noise reduction
ON.
•“NR” appears.
w Rotate the [NR] control to adjust the noise reduction
level.
e Push the [NR] switch to turn the noise reduction
OFF.
•“NR” disappears.
Deep rotation of the [NR] control results in audio sig-
nal masking or distortion. Set the [NR] control for
maximum readability.
■ Notch function
This transceiver has auto and manual notch functions.
The auto notch function automatically attenuates more
than 3 beat tones, tuning signals, etc., even if they are
moving. The manual notch can be set to attenuate a
frequency via the [NOTCH] control.
➥ Push [A/NOTCH] to toggle the notch function be-
tween auto, manual and OFF in SSB and AM
modes.
➥ Push [A/NOTCH] to turn the manual notch function
ON and OFF in CW mode.
➥ Push [A/NOTCH] to turn the auto notch function ON
and OFF in FM mode.
•Set to attenuate a frequency for manual notch via the
[NOTCH] control.
•“A NOTCH” appears when auto notch is in use.
•“NOTCH” appears when manual notch is in use.
While operating the manual notch, noise may be
heard. This comes from the DSP unit and does not
indicate an equipment malfunction.
■ Dial lock function
The dial lock function prevents accidental changes
caused by the tuning dial.
➥ Push [LOCK/SPCH] to turn the dial lock function ON
and OFF.
•“LOCK” indicator lights while the dial lock function is ac-
tivated.
AGC
DUP
CMP
TBW
SCP
[A/NOTCH] [NOTCH]
Notch function indicators
AGC
DUP
CMP
TBW
SCP
[NR] [NR]
Appears
[LOCK/SPCH]
Lights while the dial lock function is activated.
IC-7400.qxd 02.4.2 11:35 Page 52
To Next Page
Loading...
