Kenwood TS590SG User Manual

52

0.03 ~ 0.522

10.5 ~ 14.5

0.522 ~ 2.5

14.5 ~ 18.5

2.5 ~ 4.1

18.5 ~ 21.5

4.1 ~ 6.9

21.5 ~ 25.5

6.9 ~ 7.5

25.5 ~ 30.0

7.5 ~ 10.5

30.0 ~ 60.0

Note:  Connect an external tuner to the ANT 1 connector 
only, then select ANT 1.  The internal antenna tuner will be 
automatically bypassed when the transceiver is switched ON.

You can set the transceiver to switch OFF 
automatically if no keys or controls are pressed or 
adjusted for a certain period of time.  One minute 
before the transceiver switches OFF, “CHECK” is 
output in Morse code.

1 Press 

[MENU], then press [Q-M.IN]/ [Q-MR] or 

turn the MULTI/CH control to access Menu No. 86.

2 Press 

[M.IN]/ [SCAN (SG.SEL)] to select the APO 

time from “oFF”, “60”, “120”, or “180” minutes.

3 Press 

[MENU] to exit Menu mode.

◆

  The APO function works even if the transceiver is scanning.

◆

  The APO timer starts counting down when no key presses, 

no control adjustments, and no command (COM connector) 
sequences are detected.

As explained in “ANTENNA CONNECTION” 
{page 1}, matching the impedance of the coaxial cable 
and antenna is important.  To adjust the impedance 
between the antenna and the transceiver, you have 
the choice of using the internal antenna tuner or an 
external antenna tuner.  This section describes how 
to use the internal antenna tuner.  For the external 
antenna tuner, consult the instruction manual that 
comes with the tuner.

1  Select the transmit frequency.

2  Press and hold  [PRE (ANT 1/2)] to select “

” 

or “

”.

•  If the external antenna tuner (AT-300) is 

connected to the ANT 1 connector, select 
ANT 2 to use the internal antenna tuner.  
The internal antenna tuner is automatically 
bypassed if the external antenna tuner is 
connected to ANT 1.

3  Press and hold [AT (TUNE)].

•  CW mode is automatically selected and tuning 

begins.

• “

” blinks and the TX-RX LED lights red.

•  To cancel tuning, press [AT (TUNE)] again.

Two antenna connectors are available for the HF/ 
50 MHz band on the TX/ RX unit rear panel.

Press and hold [PRE (ANT 1/2)] to select ANT 1 or 
ANT 2.

• “

” or “

” appears to indicate which 

antenna is selected.

Press and hold [ATT (RX ANT)] to toggle the RX ANT 
between enabled and disabled.

•   “

” appears when the RX ANT is enabled.

Press and hold [METER (DRV)] to switch the Drive 
output (DRO) or Antenna output (ANT) between 
enabled and disabled.

Drive output : Use the standard input of 1 mW for the 
linear amplifi er and other connections.

•   “

” appears when the Drive output is enabled.

Antenna output: The DRV terminal functions as an 
antenna output terminal for an external receiver. With 
this function, the RX signal that is input from the 
currently selected antenna (ANT1, ANT2, or RX ANT) 
is split in the middle, with one input to the RX circuit 
and the other output to the DRV terminal.

•   “ ” appears when the DRV (Antenna output) is 

enabled.

◆

  When you use the Antenna output function, due to the loss 

of the splitter, the receive sensitivity and gain decreases by 
approximately 3 dB.

◆

  During transmission, the transmission output will leak a 

little through internal isolation (approximately -20 dBm at 50 
MHz).

◆

  The ON/OFF status of the Antenna output function is stored 

separately in the 50 MHz band and HF band.

■  Selecting the DRV Connector Function

1 Press 

[MENU], then press [Q-M.IN]/ [Q-MR] or 

turn the MULTI/CH control to access Menu No. 
85.

2 Press 

[M.IN]/ [SCAN (SG.SEL)] to select 

“DRO”  or “ANT”.

3 Press 

[MENU] to exit Menu mode.

The ANT 1, ANT 2, RX ANT, and DRV settings will 
automatically be stored in the antenna band memory.  
The next time you select the same band, the same 
antenna will be automatically selected.