ICOM 307300 Manual De Usuario

N 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.

t  Push [COMP] to turn the speech compressor ON.

r  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 nor-
mal voice level.

 

When the COMP meter peaks exceed 20 dB, 
your transmitted voice may be distorted.

t  Push [COMP] (MF7) or [EXIT/SET] to exit COMP 

TBW set mode.

y  Adjust the ALC meter reading within the 30 to 50% 

range of the ALC scale. (p. ??)

N 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.

t  Push [COMP] to turn the speech compressor ON 

or OFF.

t  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. ??)

 

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 mode.

[MIC GAIN]

[COMP]

EXIT/SET

Main dial

SSB

[COMP]

EXIT/SET

F-3

TBW

SSB

Speech compressor is ON

Speech compressor is OFF

“WIDE” setting

86

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