Alc Operation When Connected To An External Device - Kenwood TS-590SG Manual

02 TRANSMISSION

2.3.3 ALC Operation when Connected to an External Device

Figure 2-6 shows the block diagram of the connection with the external device when the ALC signal is input to TS-590SG
from an external device; Figure 2-7 shows the characteristic of the output level variation according to the ALC voltage.
This is a method for controlling the gain of TS-590SG using the ALC voltage output from the external device, which in turn
controls the transmit output of TS-590SG as a result. Operation is the same for both linear amplifiers and transverters.
The gain level in the IF circuit of TS-590SG lowers when there is a drop in the ALC voltage input from the external device.
A decrease in the gain level lowers the transmit output (ANT or DRV output), which in turn controls the output.
Caution: Operation when ALC is applied from an external device
◆ If the MIC gain and CAR level are preset to achieve an optimum level without the deflection of the ALC meter of this
transceiver being subject to the ALC voltage of an external device, ALC will be further applied when there is input of ALC
voltage from an external device, and the deflection of the ALC meter will increase as a result. In this case, turn the [PWR]
knob to decrease the power while monitoring the ALC meter, or set the MIC gain and CAR level again to adjust the deflection
of the ALC meter to an appropriate level.
18
Figure 2-6 External ALC Control Block
Figure 2-7 Output Level for External ALC Voltage