Alt As Iscsnsoswonaaitcvanhcaececueeeeaseanenersteevsee - Kenwood TM-231A Instruction Manual

4-2-5. ALT (TM-531A/531E only)
The ALT system operates similar to an AFC (Automatic Fre-
quency Control) system. This system is useful when the fre-
quency 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.
(Example)
Frequency
Transmit Frequency Receive Frequency
of the Distant Station
ALT System is
performed.
Ca
Frequency
Transmit Frequency Receive Frequency
of the Distant Station
Note:
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 was higher or lower than
the displayed frequency.
To activate the ALT function
1. Press the F key momentar-
ily. The F indicator will turn
on in the display.
. While the F indicator is on
press the DRS/ALT key.
The ALT indicator will turn
on and the receiver will au-
tomatically center itself on
the incoming signal.
. To release the ALT func-
tion press the F key
momentarily and then the
DRS/ALT key.
Turns on when the transmit
frequency of the distant sta-
tion is higher than your receive
frequency.
Turns on when the transmit
frequency of the distant sta-
tion is lower than your receive
frequency.
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