Linear Amplifier Menu Screen; Turning On/Off Linear Amplifier; Linear Amplifier Tx Control; Turning On/Off Linear Amplifier Tx Delay - Kenwood TS-890S Instruction Manual

16 OTHER FUNCTIONS

Linear Amplifier Menu Screen

1 Press [MENU].
2 Press F [LINEAR AMP] to display the Linear
Amplifier menu screen.
• If F [LINEAR AMP] is not displayed, press F [MORE] to
display F [LINEAR AMP].
.
3 Press F6 [BAND] to switch to the target band.
Pressing F6 [BAND] each time toggles the selection to "HF
Band", "50 MHz Band" and "70 MHz Band" (E type only) in
sequence.
4 Press F2 [ ]/ F3 [
5 Press F4 [–]/ F5 [+] or turn the [MULTI/CH] control
to select the setting value.
• The following settings are recommended when using the
TL-922 (discontinued).
Settings Menu
Linear Amplifier
Keying Logic
TX Delay
TX Delay Time (CW/FSK/PSK)
TX Delay Time (SSB/FM/AM)
Internal Relay Control
External ALC Voltage
6 Press [MENU] or [ESC] to end the process.
• Pressing F [MENU TOP] returns the display to the menu top
screen.

Turning ON/OFF Linear Amplifier

Switch the linear amplifier function for each target band to ON or
OFF.
Configure "Linear Amplifier" in Linear Amplifier
Menu
Setting Value Off (default)/ On

Linear Amplifier TX Control

TX control of the linear amplifier without using relay control can be
performed via the 7-pin LKY terminal of the REMOTE connector.
This function is used for TX control when using a linear amplifier
that supports full break-in.
Configure "Keying Logic" in Linear Amplifier Menu
Setting Value Active Low (default)/ Active High
16-14
] to select the setting item.
TL-922
On
Active Low
On
15
35
On
-6 [V]

Turning ON/OFF Linear Amplifier TX Delay

Delay the switching operation by the transmission system of this
transceiver when there is a long time lag before transmission starts
on the linear amplifier in use.
Configure "TX Delay" in Linear Amplifier Menu
Setting Value Off (default)/ On
When the TX delay of the linear amplifier is ON, TX delay
●
time is added to the time from when transmission is
started until the radio wave is output (usually about 15
ms).

Linear Amplifier TX Delay Time

The TX delay time when using a linear amplifier can be configured
separately for the CW/FSK/PSK and SSB/FM/AM modes.
CW/FSK/PSK Mode
Configure "TX Delay Time (CW/FSK/PSK)" in Linear
Amplifier Menu
Setting Value 5/ 10/ 15 (default)/ 20/ 25/ 30/ 35/ 40 [ms]
SSB/FM/AM Mode
Configure "TX Delay Time (SSB/FM/AM)" in Linear
Amplifier Menu
Setting Value 5/ 10/ 15/ 20/ 25/ 30/ 35 (default)/ 40/ 45/ 50 [ms]

Linear Amplifier Relay Control

When using a linear amplifier that requires TX control via a
mechanical relay, the built-in mechanical relay terminals of this
transceiver (pin 4 MKE terminal, pin 5 BRK terminal, pin 2 COM
terminal of the REMOTE connector) are used.
Configure "Internal Relay Control" in Linear
Amplifier Menu
Setting Value Off (default)/ On
On: Activates the following relay control.
• The MKE terminal is connected to the COM terminal during
transmission.
• The BRK terminal is connected to the COM terminal when
there is no transmission.
Off: Relay control is not activated and the BRK terminal remains
connected to the COM terminal at all times.
When using a linear amplifier that does not require control
via a mechanical relay, configure to "Off" to minimize the
relay sound.

External ALC Voltage of Linear Amplifier

Adjust the response of the ALC terminal (pin 6) of the REMOTE
connector on this transceiver according to the linear amplifier in
use.
Configure "External ALC Voltage" in Linear
Amplifier Menu
-1/ -2/ -3/ -4 (default)/ -5/ -6/ -7/ -8/ -9/ -10/ -11/
Setting Value
-12 [V]
• Under normal circumstances, make adjustments on the
linear amplifier without changing the default setting.