I Peak Meter Hold; I Dsp Functions; Depending On Version); D Anf (Automatic Notch Filter) Function - Icom IC-703 Instruction Manual

I Peak meter hold

The peak meter hold function freezes the highest dis-
played bar segment in any meter function for about
0.5 sec. so that you can more easily read the meter.
This function can be turned ON and OFF in initial set
mode (item "

I DSP Functions

D ANF (Automatic Notch Filter) function

This function automatically attenuates beat tones,
tuning signals, etc., even if they are moving. The au-
tomatic notch filter functions in SSB, FM and AM
modes.
q Select
(DSP menu).
• Push [DISPLAY] once or twice to select .
• Push [MENU] one or more times to select
w Push [
] to toggle the automatic notch fil-
(F-1)
ter ON and OFF.
• "DSP" and "ANF" appear when the function is ON.

D NR (Noise Reduction) function

This function reduces noise components and picks
out desired signals which are buried in noise. The re-
ceived AF signals are converted to digital signals and
then the desired signals are separated from the noise.
The noise reduction function is available for all oper-
ating modes.
q Select
(DSP menu).
• Push [DISPLAY] once or twice to select .
• Push [MENU] one or more times to select
w Push [
] to toggle the noise reduction func-
(F-2)
tion ON and OFF.
• "DSP" and "NR" appear when the function is ON.
e Push [
] to toggle the noise reduction level
(F-3)
indication ON and OFF.
r Rotate the [M-CH] control to set the noise reduc-
tion level.
• Set the control for maximum readability. Deep rotation
results in audio signal masking or distortion.
INITIAL SET MODE
" ; see p. 79).
(may require an optional unit depending on version—see p. 92)
.
.
FUNCTION FOR RECEIVE
[EXAMPLE]:
S1 3 5 7 9 20 40
S1
3 5 7 9 20 40
[F-1]
[MENU]
USB
DSP
ANF ANF
3 5 7 9
S1 20
P 5
O
[MENU]
[M-CH] [F-2]
USB
DSP
NR NR
S1 3 5 7 9 20
P 5
O
USB
DSP
NR NR
S1 3 5 7 9 20
P 5
O
60dB
Initial reception of a
signal results in an
S-meter reading of
40 dB.
60dB The highest indica-
ted bar remains dis-
played for about 0.5
sec. even when the
signal strength de-
creases.
[DISPLAY]
BLANK
VFO A
40 60dB
CH
10
[F-3]
[DISPLAY]
BLANK
VFO A
40 60dB
CH
10
BLANK
40 60dB VFO A
CH
10
5
5
50