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5
OTHER FUNCTIONS
5-4
Noise Blanker (NB)
SSB, CW, FSK and AM modes
The Noise blanker eliminates pulse-type noise such
as the noise from car ignitions.
1. On the FUNCTION screen, touch [NB].
L
Each touch turns the Noise Blanker function ON or OFF.
2. To change the NB level, depth or width, touch
[NB] for 1 second.
Turns ON the Noise Blanker and opens the NB menu.
3. Touch the adjusting item. (Example: DEPTH)
4. Rotate to adjust the level.
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 the OFF Noise
Blanker, or shallow the DEPTH on the NB menu.
See the description below for details.
LEVEL (Default: 50%)
Set the Noise Blanker activation level to between 0
and 100%.
DEPTH (Default: 8)
Adjust the noise attenuation level between 1 and 10.
WIDTH (Default: 50)
Adjust the blanking duration time between 1 and 100.
Noise Reduction
The Noise Reduction function digitally reduces
random noise components, and enhances desired
signals that are buried in noise.
L The function is effective in the SSB, AM and CW modes.
1. On the FUNCTION screen, touch [NR].
LEach touch turns the Noise Reduction function ON or OFF.
2. To change the Noise Reduction level, touch [NR]
for 1 second.
Turns ON the Noise Reduction and opens the NR menu.
3. Set the Noise Reduction level to between 0 and 15.
Adjust the Noise Reduction level to where noise is
reduced and the received signal is not distorted.
L Set to a higher level to increase the reduction level,
and a lower level to decrease it.
Noise Blanker OFF Noise Blanker ON
Pulse-type
noise
Receive
signal
Noise Blanker ON
(Not enough DEPTH)
Noise Blanker ON
(WIDTH set too wide)
NB WIDTH
Receive
signal
LEVEL
Receive
signal
Receive signal
Pulse-type
noise remains
Part of the receive signal
is eliminated along with
pulse-type noise
Pulse-type
noise eliminated
Duplex operation
You can receive a communication that uses different
frequencies for transmitting and receiving (Duplex), by
setting the offset frequency and shift direction.
1. On the FUNCTION screen, touch [DUP].
Each touch changes between [DUP–], [DUP+] and [OFF].
2. To change the frequency offset or shift direction,
touch [DUP] for 1 second.
3. Touch the numeric keys or rotate , to set
the frequency offset.
Settable range: 0.000 ~ 200.000 MHz (1 kHz step)
Touch to change the Shift direction
Receive frequency
(When the Monitor function is ON.)
Offset frequency
4. Hold down to turn ON the Monitor function.
The receive frequency shifts according to the set frequency
offset and direction, while holding down
.
[DUP–] or [DUP+] blinks when the shifted frequency is
out of receive frequency range.
The frequency offset and direction is stored in each
memory channel.
When the frequency offset is set to 0.000 MHz, the
receive frequency is not shifted.
34


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