21
Lit. No. M100V Rev. A 1/3/11
A transmitter can be optionally keyed using either PTT or keying tones. This section describes the different
keying options.
•
PTT is asserted when the trigger is reached
o
If you’re using PTT to key the transmitter, check this box.
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PTT Key-up Delay
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This sets the amount of time, in milliseconds, that the transmitter port delays- after the presence
of audio- before asserting PTT. This setting is rarely used, and is almost always set to 0.
•
Relay Hold On
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This is the amount of time, in milliseconds, that the PTT relay stays engaged after audio goes
away.
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Use Keying Tones
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If keying tones are used to key the transmitter, check this box. Also, fill out the correct Function
Tone Macro (click “Tone Macro Help” for more information).
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Key-up Triggers
o
Leave the Key-up Trigger for a transmitter set to “On VOX”.