Icom GM800 Instruction Manual - Page 20

■ Other functions, Transmit Frequency Monitor function, Squelch function, S-meter squelch level

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6 OTHER FUNCTIONS AND OPERATIONS ■■Other functions DDTransmit Frequency Monitor function When selecting a duplex channel, the transmit frequency differs from the receive frequency. To prevent from interference to other stations, the transmit frequency should be monitored before you transmit. 1. Push [Ω] or [≈] until "TX FREQ Monitor" is displayed in the Software Key area. 2. Hold down [TX FREQ Monitor] to monitor the transmit frequency. L" " blinks and the transmit frequency is displayed. DDSquelch function The Squelch function mutes unwanted signals such as noise or unmodulated beat signals. This function enables quiet standby. However, when you need to receive weak signals, adjust the Squelch level, or turn OFF the function. 1. Push [Ω] or [≈] until "SQL" is displayed in the Software Key area. 2. Push [SQL] to turn the function ON or OFF. L When the function is ON, is displayed. DDS-meter squelch level When the Squelch function is ON, only signals stronger than this set level are received. Set to between 1 (open) and 100 (tight). 1. Push [Ω] or [≈] until "S-SQL Level" is displayed in the Software Key area. 2. Push [S-SQL Level] ••The S-SQL level setting window is displayed. 3. Rotate [CH/GRP] to adjust the S-meter squelch level. DDNoise Blanker function The Noise Blanker function reduces pulse-type noises that come from engine ignitions. However, when the received strong signals are distorted, adjust the Noise blanker level or turn OFF the function. 1. Push [Ω] or [≈] until "NB" is displayed in the Software Key area. 2. Push [NB] to turn the function ON or OFF. L When the function is ON, "NB" is displayed. DDNoise blanker level When the Noise Blanker function is ON, adjust the Noise blanker level to reduce various pulse-type noises. Set to between 1 and 10. 1. Push [Ω] or [≈] until "NB Level" is displayed in the Software Key area. 2. Push [NB Level] . ••The NB level setting window is displayed. 3. Rotate [CH/GRP] to adjust the Noise Blanker level. 15

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15
OTHER FUNCTIONS AND OPERATIONS
6
■
Otheo functi±ns
D
Squelch functi±n
The Squelch function mutes unwanted signals such
as noise or unmodulated beat signals. This function
enables quiet standby.
However, when you need to receive weak signals,
adjust the Squelch level, or turn OFF the function.
1. Push [
Ω
] or [
≈
] until “SQL” is displayed in the
Software Key area.
2.
Push [SQL]
to turn the function ON or OFF.
When the function is ON,
is displayed.
D
S-meteo squelch level
When the Squelch function is ON, only signals
stronger than this set level are received.
Set to between 1 (open) and 100 (tight).
1. Push [
Ω
] or [
≈
] until “S-SQL Level” is displayed
in the Software Key area.
2.
Push [S-SQL Level]
•
The
S-SQL level setting window is displayed.
3.
Rotate [CH/GRP] to adjust the S-meter squelch
level.
D
N±ise Blankeo functi±n
The Noise Blanker function reduces pulse-type
noises that come from engine ignitions.
However, when the received strong signals are
distorted, adjust the Noise blanker level or turn OFF
the function.
1. Push [
Ω
] or [
≈
] until “NB” is displayed in the
Software Key area.
2. Push [NB]
to turn the function ON or OFF.
When the function is ON, “NB” is displayed.
D
N±ise blankeo level
When the Noise Blanker function is ON, adjust the
Noise blanker level to reduce various pulse-type
noises.
Set to between 1 and 10.
1. Push [
Ω
] or [
≈
] until “NB Level” is displayed in
the Software Key area.
2.
Push [NB Level]
.
•
The
NB level setting window is displayed.
3.
Rotate [CH/GRP] to adjust the Noise Blanker
level.
D
Toansmit Foequency M±nit±o functi±n
When selecting a duplex channel, the transmit
frequency differs from the receive frequency.
To prevent from interference to other stations, the
transmit frequency should be monitored before you
transmit.
1. Push [
Ω
] or [
≈
] until “TX FREQ Monitor” is
displayed in the Software Key area.
2.
Hold down [TX FREQ Monitor]
to monitor
the transmit frequency.
“
” blinks and the transmit frequency is
displayed.