User's Manual

72
APO (Auto Power OFF)
You can set the TS-2000 to switch OFF automatically
if no keys or controls are pressed or adjusted for a
certain period of time. 1 minute before the
transceiver switches OFF, “CHECK” is output in
morse code. You can select the time from OFF, 60,
120, and 180 minutes.
Press [MENU], then turn the MULTI/ CH control to
access Menu No. 57.
Select the APO time from OFF, 60, 120, or 180
minutes.
Note:
◆ The APO function works during the Scan.
◆ The APO timer starts counting down the timer when no key
presses, no control adjusments, and no command (RS-232C
port) sequences are detected.
AUTOMATIC ANTENNA TUNER
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 tuner or an external
tuner. This section describes how to use the internal
tuner. For the external tuner, consult the instruction
manual that comes with the tuner.
1 Select the transmit frequency.
2 Press [FUNC], [AT/ ANT1/2] to select ANT 1 or
ANT 2.
• If an external tuner is connected to the ANT 1
connector, select ANT 2 to use the internal
antenna tuner. The internal antenna tuner is
automatically bypassed if an external antenna
tuner is connected to ANT 1.
3 Press [AT/ ANT1/2] momentarily.
• “AT TX” appears, indicating that the internal
tuner is in-line (not bypassed).
4 Press [AT/ ANT1/2] for more than one second.
• CW mode is automatically selected and tuning
begins.
• “AT” blinks and the MAIN band LED lights red.
• To cancel tuning, press [AT/ ANT1/2] again.
• If the SWR of the antenna system is extremely
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ALT (Auto Lock Tuning)
The ALT (Auto Lock Tuning) allows the transceiver to
adjust the center receiving frequency automatically
when you operate on the 1.2 GHz band in FM mode.
When the receiving audio signal is distorted or
breaking up, turn this function on to adjust the center
receiving frequency. Some old 1.2 GHz transceivers
do not have stable and precise oscilating circuits and
tend to be slightly off (drifted from) the displayed
frequency.
Press [FUNC], [XIT/ ALT] to toggle the ALT function
ON or OFF.
• “ALT” appears when the function is ON.
Note: The ALT (Auto Lock Tuning) works only on the 1.2 GHz
band in FM mode.
ANTENNAS
HF/ 50 MHz Band
■ SWITCHING ANT 1/ ANT 2
Two antenna connectors are available for the HF/
50 MHz band on the rear panel. When you
operate the main transceiver on these
frequencies, you can select one of 2 antennas.
Press [FUNC], [AT/ ANT 1/2] to select ANT 1 or
ANT 2 for the main transceiver.
• “ANT 1” or “ANT 2” appears to indicate which
antenna is selected.
The ANT 1/ANT 2 setting will automatically be
stored in the antenna band memory. Next time
you select the same band, the same antenna will
be automatically selected.
Note: Connect an external antenna tuner to the ANT 1
connector only, then select ANT 1. The internal tuner will be
automatically bypassed when the transceiver is switched ON.
VHF/ UHF/ 1.2 GHz Band
When you select the VHF, UHF, or 1.2 GHz band
on the main transceiver and/or the sub-receiver,
the following antenna is automatically selected
based on the operating frequencies.
Note: The same antenna is shared and used when the main
transceiver and sub-receiver are on the same band. The
frequency coverage varies depending on the market codes.