Setting The Speech Compressor - Icom IC-7300 HF Plus Full Manual

Previous view
4
RECEIVING AND TRANSMITTING

Setting the Speech Compressor

SSB mode
The Speech Compressor increases the average RF
output power, improving readability at the receiving
station. This function compresses the transmitter
audio input to increase the average audio output level.
L The function is effective for long-distance communication,
or when propagation conditions are poor.
1. Select the SSB mode.
(Example: USB)
2. Push .
FUNCTION
• Opens the FUNCTION screen.
3. Be sure that the Speech Compressor is OFF.
L If the Speech Compressor is ON, touch [COMP] to
turn it OFF.
FUNCTION screen (USB mode)
4. Touch to close the FUNCTION screen.
EXIT
5. Touch the Multi-function meter to display the ALC
meter.
L Touching the Multi-function meter sets the meter to
Po, SWR, ALC, COMP, V
ALC meter
6. Adjust the MIC GAIN (p. 3-11) to where the ALC
meter reads within the 30 to 50% range of the
ALC zone.
7. Touch the Multi-function meter again to display
the COMP meter.
8. Push .
FUNCTION
• Opens the FUNCTION screen.
9. Touch [COMP] to turn it ON.
OFF
or I .
D D
10. Touch [COMP] for 1 second.
11. While speaking into the microphone at your
normal voice level, adjust the Speech Compressor
level to where the COMP meter reads within the
COMP zone (10 to 20 dB range).
L When the COMP meter peaks exceed the COMP
zone, your transmitted voice may be distorted.
Speech Compressor is ON
COMP zone
4-12
Rotate