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4
RECEIVING AND TRANSMITTING
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4-5
Noise Blanker
SSB, CW, RTTY and AM modes
The Noise blanker eliminates pulse-type noise such
as the noise from car ignitions.
Push
NB
to turn the Noise Blanker ON or OFF.
Displayed when
the Noise Blanker
is ON
NOTE
: When using the Noise Blanker, received signals
may be distorted if they are excessively strong, or the
noise is other than a pulse type. In that case, turn OFF the
Noise Blanker, or shallow the DEPTH on the NB menu.
See the description below for details.
D
Adjusting the NB level and time
To deal with various type of noise, you can adjust the
attenuation level and blanking depth and width in the
NB menu.
1. Hold down
NB
for 1 second.
• Turns ON the Noise Blanker and opens the NB menu.
2. Touch the item to adjust. (Example: DEPTH)
3.
Rotate
MULTI
to adjust the item. (Example: 8)
4.
Push
MULTI
to close the NB menu.
Rotate
Push
LEVEL
(Default: 50%)
Adjust the level where the Noise Blanker activates
between 0 and 100%.
DEPTH
(Default: 8)
Adjust the noise attenuation level to between 1 and 10.
WIDTH
(Default: 50)
Adjust the blanking duration time to between 1 and 100.
NB is OFF
NB is ON
(DEPTH is too short)
NB is ON
(WIDTH is too wide)
Pulse-type
noise
Noise removed
Portion of desired signal is also removed
Noise
still exists
NB LEVEL
NB WIDTH
Desired signal
Desired signal
Desired signal
Desired signal
NB is ON (Effective)