Switching The Agc Time Constant; Adjusting The Agc Time Constant Preset Value; Agc Off; Agc Quick Recovery - Kenwood TS-890S Instruction Manual

Switching the AGC Time Constant

1 Select a mode other than FM.
2 Press [AGC] to select an AGC time constant.
Pressing [AGC] each time switches the selection in the
following sequence: "AGC-F" → "AGC-M" → "AGC-S".
.

Adjusting the AGC Time Constant Preset Value

1 Press and hold [AGC] to display the AGC
configuration screen.
.
2 Press F3 [AGC] or [AGC] to select "FAST", "MID" or
"SLOW".
3 Press F4 [–]/ F5 [+] or turn the [MULTI/CH] control
to change the AGC time constant.
Setting Value 1 to 20
The AGC time constant is fastest when it is configured to "1",
and slowest when configured to "20".
• The default AGC time constant values in the respective
operation modes are as follows.
Mode
SSB
SSB-DATA
CW
FSK
PSK
AM
AM-DATA
4 Press and hold [AGC] or press [ESC] to end the
process.
FAST MID SLOW
9 12
9 12
9 12
7 11
7 11
9 13
9 13

AGC OFF

Turns off AGC according to the status of the signals received. RF
gain is fixed when AGC is set to OFF, which makes it easier to hear
weak signals in some cases.
If AGC is turned OFF while the S meter is deflecting due
●
to the signal, sound may be output to the speaker or
headphones at an unexpectedly loud volume.
Turn the [RF] control to turn down the RF gain level in advance.
After turning off AGC, adjust RF gain by turning the [RF] control
until the signal can be heard clearly.
To turn off AGC, perform the steps below.
1 Press and hold [AGC] to display the AGC
configuration screen.
2 Press and hold F6 [(OFF)] to configure AGC to OFF.
<<
grayed out.
3 Press and hold [AGC] or press [ESC] to end the
process.

AGC Quick Recovery

This function performs recovery from the suppression that occurs
when the RX signal contains pulse noise.
1 Press and hold [AGC] to display the AGC
configuration screen.
2 Press F2 [PULSE] to display the AGC Quick
Recovery configuration screen.
.
3 Press F3 [ON/OFF] to set the function to "On".
4 Press F4 [–]/ F5 [+] or turn the [MULTI/CH] control
to change the threshold level.
14
Configuring to a larger value activates this function when signal
14
level difference between the RX signal and pulse noise is small.
14
Setting Value
14
14
This function may not be effective for pulse noise
●
16
occurring in short time interval.
Configuring to a value with a high threshold level may
16
●
cause the transceiver to malfunction and distort the RX
audio depending on the condition of the RX signal.
5 Press and hold [AGC] or press [ESC] to end the
process.
COMMUNICATING AIDS 5
>> lights up and the preset value display area is
1 to 5 (default) to 10
5-3