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Tone Frequency & Durations Window
PTT Frequency Drop Down Menu
The PTT Frequency drop down menu, shown in Figure134, identifies the PTT frequency, in Hz, the console uses.
Available selections for this field are: 2100, 2175, 2300, 2325, 2400, 2600, 2800, 2850 and 2970Hz.
Guard Tone Duration Field
The Guard Tone Duration field identifies the amount of time, in ms, the guard tone plays before the function tone.
The range for this field is 0 to 999ms.
Guard Tone Magnitude Field
The Guard Tone Magnitude field identifies the level, in dBm, of the guard tone.
The range for this field is -60 to 12dB.
Hold Tone Magnitude Field
The Hold Tone Magnitude field identifies the level, in dBm, of the hold tone summed with TX audio to keep the radio in a
transmit state.
The range for this field is -60 to 12dB.
Hold Tone Hangtime Field
The Hold Tone Hangtime field identifies the amount of time, in ms, the hold tone continues after the release of the PTT
button. Pressing the PTT button again during this hangtime continues the transmission without resending the guard and
function tones.
The range for this field is 0 to 999ms.
Guard Hold
FIGURE 134. PTT Frequency Drop Down Menu