Kenwood TS-590SG Manual

Also see for TS-590SG: Reference guide Setting manual Setting manual Instruction manual Instruction manual

Contents

02 TRANSMISSION16The transceiver is equipped with a relay output for controlling devices such as a linear amplifier, as well as an RL terminal(Pin 7) to which a voltage of approximately 12 V is output during sending. The relay output terminal and RL terminal outputcan be adjusted in the setting menu No. 53 (HF bands) or No. 54 (50 MHz band) of the linear amplifier control. Table 2-1describes the options available in the menu, and Figure 2-4 and Figure 2-5 show the timing charts.Table 2-1 Setting Menu of Linear Amplifier ControlLinear Amplifier ControlsSetting Semiconductor Switch Control(RL Terminal) *1Relay Control(COM/ BRK/MKE Terminal) *2Transmit Start Delay Time *3CompatibleLinearAmplifiers fromKENWOODOFF OFF OFF (10 ms)1 During the transmission: 12 V OFF (10 ms) TL-9332 During the transmission: 12 V ON (10 ms)3 During the transmission: 12 V ON CW/FSK: approx. 25 msSSB/AM/FM: approx. 45 ms TL-9224 During the transmission: Shortto GND (pin 1) OFF (10 ms)5 During the transmission: Shortto GND (pin 1) OFF CW/FSK: approx. 25 msSSB/AM/FM: approx. 45 ms*1 The RL terminal enables the operation logic during sending to be switched using the output of the semiconductorswitch.Specify whether to output voltage or short to ground during sending. Controlling the linear amplifier without operating therelay helps to achieve more silent operation. As a reference, the controllable current should be less than 10 mA.100 resistors arrayed in series are inserted to protect the internal circuit, which shifts the voltage according to the currentflow. Example: In the event of a 10 mA current, voltage decreases by 1 V (when the setting is 1, 2 or 3) or rises by 1 V (whenthe setting is 4 or 5). Make use of your device within the safe range.*2 Switch the operation of the relay (built-in linear amplifier control relay).The rated control capacity of the relay contact is 2 A/ 30 V DC (resistance load), and the maximum allowable voltage is 220V DC and 250 V AC.High-voltage signals such as those of a vacuum tube amplifier can be switched. Control of the terminal voltage for TL-922(approx. -140 V) is also possible.*3 This feature extends the duration from the time sending starts to that when radio waves are output (approx. 10 msunder normal circumstances) and from the time sending ends to that when output of the received audio starts (approx.25 ms under normal circumstances). Note that if the full break-in setting is selected in the CW mode (and if the delaytime is set to FBK ), the transmit start time cannot be delayed.In the event that the linear amplifier in use requires a relatively long time to switch between receive send orsend receive, such as the case of the TL-922, using this setting helps to prevent errors such as malfunction and noisefrom occurring.