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Speech compressor
<MODE> SSB
The speech compressor increases average RF output
power, improving signal strength and readability.
q Push [SSB] to select USB or LSB mode.
w Push and hold [COMP] (MF7) for 1 sec. to select
COMP TBW set screen.
e Adjust the [MIC GAIN] control so that the ALC
meter reads within the ALC zone, whether or not
you speak softly or loudly.
r Push [COMP] (MF7) to turn the speech compres-
sor ON.
t While speaking into the microphone, rotate the
main dial, so that the COMP meter reads within the
COMP zone (10 to 20 dB range) for your normal
voice level.
When the COMP meter peaks exceed 20 dB,
your transmitted voice may be distorted.
y
Push [COMP] (MF7) or [EXIT/SET] to exit COMP
TBW set screen.
u Adjust the drive gain to set the ALC meter read-
ing within the 30 to 50% range of the ALC scale.
(p. 37)
Transmit filter width setting
<MODE> SSB
The transmit filter width for SSB mode can be
selected from wide, middle and narrow.
q Push [SSB] to select USB or LSB mode.
w Push and hold [COMP] (MF7) for 1 sec. to select
COMP TBW set screen.
e Push [COMP] (MF7) to turn the speech compres-
sor ON or OFF.
r Push [TBW] (F-3) several times to select the
desired transmit filter width from wide, middle and
narrow.
The filter can be independently set on the speech com-
pressor function is ON and OFF.
The following filters are specified as the default. Each
of the filter width can be re-set in level set mode.
(p.
122)
WIDE : 100 Hz to 2.9 kHz
MID : 300 Hz to 2.7 kHz
NAR : 500 Hz to 2.5 kHz
t Push [COMP] (MF7) or [EXIT/SET] to exit COMP
TBW set screen.
[MIC GAIN]
EXIT/SET
Main dial
COMP
SSB
• COMP/TBW set screen
EXIT/SET
F-3
TBW
COMP
SSB
Speech compressor is ON
Speech compressor is OFF
“WIDE” setting
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