4-8
BASIC MANUAL
4
RECEIVING AND TRANSMITTING
Noise Blanker
SSB, CW, RTTY, and AM modes
The Noise Blanker eliminates pulse-type noise, such
as the noise from car ignitions.
1. Push
.
•
Opens the FUNCTION screen.
2. Touch [NB].
L
Touching [NB] turns this function ON or OFF.
3. To close the FUNCTION screen, push
.
D
Adjusting the NB level and time
To deal with various types of noise, you can adjust the
attenuation level and blanking depth and width in the
NB menu.
1. Push
.
•
Opens the FUNCTION screen.
2. Touch [NB] for 1 second.
•
Turns ON the Noise Blanker and opens the NB
menu.
3. Touch the item to adjust. (Example: DEPTH)
4. Rotate
to adjust the item. (Example: 8)
5. To close the NB menu, push
.
LEVEL
(Default: 50%)
Adjusts the level where the Noise Blanker activates
between 0 and 100%.
DEPTH
(Default: 8)
Adjusts the noise attenuation level to between 1 and 10.
WIDTH
(Default: 50)
Adjusts the blanking duration time to between 1 and 100.
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.
NB is OFF
NB is ON (Effective)
NB is ON
(DEPTH is too short)
NB is ON
(WIDTH is too wide)
Portion of desired signal is also removed
Desired signal
Noise still exists
Desired signal
Desired signal
Desired signal
Pulse-type noise
Noise removed
NB LEVEL
