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Lock❑/❑Unlock: Lock a channel so that the channel cannot be selected and
viewed.
This function is available only when the Channel❑Lock is set to On.
The PIN input screen appears. Enter your 4-digit PIN, the default of which is
“0-0-0-0”. Change the PIN using the Change❑PIN option.
If you want to lock the channel you are currently watching, select the Lock❑
Current❑Channel in Tools menu.
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Channel❑Name❑Edit (analog channels only): Assign your own channel name.