3
16
RECEIVE AND TRANSMIT
3
ï
Noise blanker
The
noise blanker
reduces pulse-type noise such as
that generated by automobile ignition systems.
The noise blanker may distort reception of strong sig-
nals. In such cases, the noise blanker should be
turned OFF.
q
Push
[I/O]
to enter the
Quick set mode
while trans-
ceiver’s power is ON.
w
Push
[
∫
∫
]
or
[
√
√
]
to select ‘NB.’
e
Push
[
Ω
Ω
CLR]
or
[OK
≈
≈
]
to turn the noise blanker
ON.
r
Push
[
∫
∫
]
or
[
√
√
]
to select ‘NB LEVEL.’
t
Push
[
Ω
Ω
CLR]
or
[OK
≈
≈
]
to adjust the noise
blanker level.
y
Push
[I/O]
to exit the
Quick set mode
and return to
the normal operating mode.
When using the noise blanker, received signals
may be distorted if they are excessively strong.
é
-
SP
-
OUT
----
ON
--
AGC
-------
ON
--
MIC
-
BL
----
OFF
--NB
------
--
ç
-
ON
-
å
è
-
NB
-
LEVEL
--
5
[I/O]
[
Ω
CLR]/[OK
≈
]
[
∫
]/[
√
]
D
D
AGC OFF function
The receive gain is automatically adjusted according
to received signal strength with the AGC (Automatic
Gain Control) function to prevent distortion from
strong signals and to obtain a constant output level.
When receiving weak signals with adjacent strong
signals or noise, the AGC function may reduce the
sensitivity. In this situation, the AGC function should
be deactivated.
q
Push
[I/O]
to enter the
Quick set mode
while trans-
ceiver’s power is ON.
w
Push
[
∫
∫
]
or
[
√
√
]
to select ‘AGC.’
e
Push
[
Ω
Ω
CLR]
or
[OK
≈
≈
]
to turn the AGC ON.
r
Push
[I/O]
to exit the
Quick set mode
and return to
the normal operating mode.
é
-
SP
-
OUT
----
ON
--AGC
-----
--
ç
-
ON
-
å
--
MIC
-
BL
----
OFF
--
NB
--------
ON
è
-
NB
-
LEVEL
--
5
[I/O]
[
Ω
CLR]/[OK
≈
]
[
∫
]/[
√
]
■
Functions for receive (Continued)