Kenwood TM-741A - Manual (Page 26)

The ALT system operates similar to an AFC (Automatic
Frequency Control) system. This system is useful when
the frequency of either station starts to drift. When this
occurs distortion of the signal is the usual result. The
ALT system will detect the drift and shift the frequency
to compensate.
1. Press the F key momentarily. The F indicator will
light on the display.
2. While the F indicator is on press the DTSS/ALT key.
The ALT indicator will turn on and the receiver will
automatically center itself on the incoming signal.
4-2-8. ALT (Automatic Lock Tuning)
(Requires optional BAND UNIT UT-1200 )
n n n n u n n n
l ' ^ l . U U U
.... n n n n
I P H u . u u u ' i H u . u u u
—---- --- —-
3.
(^DTSS^
To release the ALT function press the F key
momentarily, then press the DTSS/ALT key again.
The frequency display will not actually change, even
though the receive frequency might shift in order to
properly tune the incoming signal. When the ALT
system is operating the direction indicator in the display
will turn on to signal a change in the receiver
frequency.The direction indicator will show you if the
incoming signal is higher or lower than the displayed
frequency.
Turns on when the transmit frequency of the
distant station is higher than your receive
frequency.
ALT
Turns on when the transmit frequency of the
distant station is lower than your receive
frequency.
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