Icom IC-i7410, Инструкция по эксплуатации

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!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).
• The squelch is particularly effective in FM, but also
works in other modes.
• The 12 to 1 o’clock position is recommended for the
most effective use of the [RF/SQL] control.
• [RF/SQL] operates as only an RF gain control in SSB,
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)
• When used as an RF gain/squelch control
Maximum
RF gain
S-meter
squelch
Noise squelch (FM mode)
Squelch is
open.
RF gain
adjustable
range
Recommended level
• When used as an RF gain control
(Squelch is fixed open; SSB, CW and RTTY only)
Minimum RF gain
Adjustable
range
Maximum
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.
• When used as a squelch control
(RF gain is fixed at maximum.)
Squelch is
open.
S-meter
squelch
S-meter squelch
threshold
Noise squelch
threshold
(FM mode)
Shallow Deep
Noise squelch (FM mode)
!1
MIC GAIN CONTROL [MIC]
(inner control; p. 34)
Rotate to adjust the microphone gain.
• The transmit audio tone in the SSB, AM and FM modes
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
Increases
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)
(Mode: CW)
Rotate to adjust the keying speed of the internal
electronic CW keyer to between 6 wpm (minimum)
and 48 wpm (maximum).
Fast Slow
!4
BREAK IN DELAY CONTROL [BK-IN DELAY]
(p. 63)
(Mode: CW)
Rotate to adjust the transmit-to-receive switching
delay time for the Semi Break-in function.
Long delay for
slow speed
keying Short delay
for high speed
keying
!5
COMPRESSOR CONTROL [COMP] (p. 64)
(Mode: SSB)
Rotate to adjust the compression level.
Increases Decreases
!6
MONITOR GAIN CONTROL [MONI GAIN]
(p. 65)
Rotate adjust the monitor level for the clearest
audio output.
Increases Decreases
2
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