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5
RECEIVE FUNCTIONS
■
Noise reduction
The noise reduction function reduces random noise
components and enhances desired signals which are
buried in noise. The DSP performs the random noise
reduction function.
q
Push the [NR] to turn the noise reduction ON.
• [NR] indicator above this switch lights green.
w
Rotate the [NR] control to adjust the noise reduction
level.
e
Push the [NR] switch to turn the noise reduction
OFF.
• [NR] indicator lights off.
Setting the [NR] control too high can result in audio
signal masking or distortion. Set the [NR] control for
maximum readability.
■
Notch function
This receiver has auto and manual notch functions.
The auto notch function uses DSP to automatically at-
tenuates up to 3 beat tones, tuning signals, etc., even if
they are moving. The manual notch can be set to at-
tenuate a frequency via the [NOTCH1]/[NOTCH2] con-
trols.
The auto notch can be used in SSB, AM, FM and WFM
modes.
The manual notch can be used in SSB, CW, FSK and
AM modes.
• Auto notch indication
➥
Push [ANF] to turn the auto notch function ON and
OFF in FM, WFM, AM and SSB modes.
• [ANF] indicator above this switch lights green.
• “
” appears when auto notch is in use.
• Manual notch indication
➥
Push [NOTCH1] or [NOTCH2] to turn the manual
notch function ON and OFF, manual and OFF in
AM, SSB, CW and FSK modes.
• [NOTCH1]/[NOTCH2] indicators above these switches
light green.
• Push and hold [NOTCH1] or [NOTCH2] for 1 sec. to se-
lect the notch filter width for manual notch from wide,
middle and narrow.
• Set to attenuate a frequency for manual notch via the
[NOTCH1] or [NOTCH2] controls.
• “
” or “
” appear when manual notch is in use.
While tuning the manual notch, noise may be heard.
This comes from the DSP unit and does not indicate
an equipment malfunction.
MN2
MN1
AN
[ANF]
[NOTCH1] control
[NOTCH2] control
[NOTCH1]
[NOTCH2]
[NR]
[NR] control
