Icom IC-7410 Instruction Manual page 9

!0 RF GAIN CONTROL/SQUELCH CONTROL
[RF/SQL] (outer control; p. 32)
Rotate to adjust the RF gain and squelch threshold
level.
The squelch removes noise output to the speaker
when no signal is received (closed condition).
works in other modes.
most effective use of the [RF/SQL] control.
CW and RTTY (Squelch is fixed open), or a squelch
control in AM and FM (RF gain is fixed at maximum
sensitivity), when the "RF/SQL Control" item is set to
"Auto" in the Set mode. (p. 86)
Noise squelch (FM mode)
Squelch is
open.
RF gain
adjustable
range
(Squelch is fixed open; SSB, CW and RTTY only)
Adjustable
range
Minimum RF gain
While rotating the RF gain control, a faint noise may
be heard. This comes from the DSP unit and does
not indicate an equipment malfunction.
(RF gain is fixed at maximum.)
Noise squelch (FM mode)
Noise squelch
threshold
(FM mode)
Squelch is
open.
Shallow
for the
Recommended level
Maximum
RF gain
S-meter
squelch
Maximum
RF gain
S-meter squelch
threshold
S-meter
squelch
Deep
PANEL DESCRIPTION
!1 MIC GAIN CONTROL [MIC] (inner control; p. 34)
Rotate to adjust the microphone gain.
can be independently adjusted in the Tone Control Set
mode. (pp. 90, 91)
How to set the microphone gain.
While speaking at normal voice level, adjust the mi-
crophone gain so that in the SSB or AM modes, the
ALC meter swings within the ALC zone.
Recommended level for
Icom microphones
Decreases
!2 RF POWER CONTROL [RF PWR]
(outer control; p. 34)
Rotate to continuously vary the RF output power
between 2 W (minimum) and 100 W (maximum).
(AM: between 2 W and 27 W).
!3 ELECTRONIC CW KEYER SPEED CONTROL
[KEY SPEED] (p. 37)
Rotate to adjust the keying speed of the internal
electronic CW keyer to between 6 wpm (minimum)
and 48 wpm (maximum).
Slow
!4
(p. 63)
Rotate to adjust the transmit-to-receive switching
delay time for the Semi Break-in function.
Short delay
for high speed
keying
!5 COMPRESSOR CONTROL [COMP] (p. 64)
Rotate to adjust the compression level.
Decreases
!6 MONITOR GAIN CONTROL [MONI GAIN] (p. 65)
Rotate adjust the monitor level for the clearest
audio output.
Decreases
1
Increase
Fast
Long delay for
slow speed
keying
Increases
Increases
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
2