20
5
RECEIVE FUNCTIONS
■
Optional auto notch function
When an optional UT-106 is installed (DSP appears
in the function display), an auto notch function can be
used.
The function automatically attenuates more than 3
beat tones, tuning signals, etc., even if they are mov-
ing.
The auto notch functions in SSB mode only.
q
Select SSB mode.
w
Push [ANF] to turn the auto notch function ON.
• [ANF] indicator appears.
e
Push [ANF] again to cancel the function.
• [ANF] indicator disappears.
Unwanted tone
frequency
Desired
signal (AF)
Desired
signal (AF)
Particular frequency
is attenuated
Auto notch OFF
Auto notch ON
optional UT-106
■
Optional noise reduction function
When an optional UT-106 is installed (DSP appears
in the function display), noise reduction function can
be used.
The noise reduction function reduces noise compo-
nents and picks out desired signals which are buried
in noise. The received AF signals are converted to
digital signals and then the desired signals are sepa-
rated from the noise.
q
Push [NR] to turn the noise reduction ON.
• [NR] indicator appears.
w
Push [NR] for 2 sec. to enter the noise reduction
level setting condition.
e
Rotate the tuning dial to adjust the noise reduction
level.
r
Push [NR] to exit the setting condition.
t
Push [NR] again to turn the noise reduction OFF.
• [NR] indicator disappears.
• Noise reduction example
Higher setting of the [NR] level results in audio sig-
nal masking or distortion. Set the [NR] level for
maximum clarity. The noise reduction function is
available in all modes, including AM and FM
modes.
Noise reduction OFF
Noise reduction activated
Desired
signal (CW)
Noise components
optional UT-106
