Optional Dsp Functions - Icom IC-910H Instruction Manual

n Optional DSP functions
To activate the following functions, the optional DSP
unit, UT-106, must be installed for both or either the
MAIN and/or SUB bands.
D NR (Noise Reduction) function
This function reduces noise components and picks out
desired signals which are buried in noise. The received
audio signals are converted to digital signals and then
the desired signals are separated from the noise. The
noise reduction function is available for all operating
modes.
q Push [M/S•BAND] or [SUB] to select the band you
wish to activate, if required.
w Push [AFC/NB•NR] for 1 sec. to turn the noise re-
duction function ON and OFF.
• "NR" indicator appears while the automatic notch filter is
activated.
[AFC/NB•NR] for 1 sec.
D ANF (Automatic Notch Filter) function
This function automatically attenuates beat tones, tun-
ing signals, etc., even if they are moving. The automat-
ic notch filter functions in SSB/FM modes.
q Push [M/S•BAND] or [SUB] to select the band you
wish to activate, if required.
w Push [AGC•ANF] for 1 sec. to turn the automatic
notch filter function ON and OFF.
• "ANF" indicator appears while the automatic notch filter
is activated.
[AGC•ANF] for 1 sec.
RECEIVE AND TRANSMIT
D Setting the noise reduction level
q Push [SET] then [AFC/NB•NR] to enter the noise
reduction set mode.
w Rotate the tuning dial to select the desired noise re-
duction level.
• Push [M-CL 5] for 1 sec. to return to the default value.
e Push [AFC/NB•NR] to exit from the noise reduction
set mode.
USB
Auto notch OFF
Desired
signal (AF)
Unwanted tone
frequency
USB
5
optional UT-106
VFO A
NR
Auto notch ON
Desired
signal (AF)
Particular frequency
is attenuated
VFO A
ANF
31