TM721A.10
OPERATING PROCEDURES

Repeater cross-band operation allows the TM-721A to receive on one band
and retransmit the signal on the other band.  An incoming signal will
automatically be switched to the sub-band.  The TM-721A will then
retransmit the signal from the main band.  Each band may contain offset
and sub-audible information (TSU-6 is required for decode).  The encode
and decode tones for a single band must be the same.  Of course, the
encoder or decoder may be shut off by using the [TONE] and [CTCSS] keys.
In addition, each band may contain a separate sub-audible tone.

1.  Select the first frequency in the main band.  If required select the
    offset.

2.  Select a tone if needed.  Selecting a tone will not turn on the
    encode or decode functions.  To turn on the encoder, press the TONE
    key (the [T] indicator will light in the main display).

3.  Press the BAND key to move the contents of the main display to the
    sub-display.  The decoder can now be turned on by pressing the F key
    and then the CTCSS key (the [CTCSS} indicator will light in the
    sub-display).

4.  Now select the second frequency in the main band.  Follow steps 1 - 3
    as needed to select the offset and tone information.

5.  Adjust the main and sub-band squelch controls to the threshold point.
    The TM-721A will transmit in the repeater cross-band mode if the
    squelch controls are too low or a signal is received.

        NOTE:  The next two steps place the unit in the cross-band
        repeater mode.

6.  Press the F key

7.  Press the A.B.C key within 5 seconds of pressing the F key.  Three
    dots should appear in the main and sub displays.  The unit will now
    operate as described.