Kenwood TH-42A - Manual (Page 23)

1 MHZ STEP FREQUENCY CHANGE KEY LOCK
The 1 MHz Step feature allows rapid frequency
excursions up or down the band with a minimum of key
strokes.
1 Press [VFO] to select the VFO.
2 Press [F].
• The bar located under the 1 MHz digit begins
blinking.
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3 Turn the ENC/SQL control to select the desired MHz
digit.
4 Press [F] to restore the previous frequency step.
Occasionally, you may want to lock the keys and the
ENC/SQL control to prevent accidentally changing any
transceiver settings.
Press [F], [MR].
• The "key" icon appears when lock is ON.
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• Each time this key combination is pressed, the keys
and the ENC/SQL control toggle between locked and
unlocked.
The following keys function normally even when Key
Lock is ON:
[MONI]
[LAMP]
[PTT]
[T/CT] {Only TH-22E/TH-42E with 1750 Hz selected)
Also, microphone PF keys function normally with Key
Lock activated; however, no new functions can be
assigned to the PF keys until Key Lock is turned OFF.
Refer to page 50 for identification of the microphone PF
keys and further information.
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