Telex IP-223 - Manual (Page 112)

Setup Information
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Function Tone Duration Field
The Function Tone Duration field identifies the duration, in ms, of the function tone. When dual function tones are set, both
tones are set to this duration. In most cases, this value is set to 40ms.
The range for this field is 0 to 999ms.
Function Tone Magnitude Field
The Function Tone Magnitude field identifies the level, in dBm, of the function tone.
The range for this field is -60 to 12dB.
FTone 1-16 Frequency Fields
The FTone 1-16 Frequency fields identify the value, in Hz, associated with each function tone burst. If the second value is set
at zero (0), no second function tone is sent. The standard function tones and their frequencies are shown in Table 7
The range for this field is 0 to 3200 Hz.
To define the frequencies and function tones, do the following:
1. From the links, select Tone Frequency & Durations.
The Tone Frequency and Durations window appears.
2. From the PTT Frequency drop down menu, select the PTT frequency (in Hz).
3. In the Guard Tone Duration field, enter the amount of time (in ms) the guard tone plays before the function tone.
4. In the Guard Tone Magnitude field, enter the level (in dBM) of the guard tone.
5. In the Hold Tone Magnitude field, enter the level (in dBM) of the hold tone summed with TX audio to keep the radio
in a transmit state.
6. In the Hold Tone Hangtime field, enter the amount of time (in ms) the hold tone continues after the release of the
PTT button.
7. In the Function Tone Duration field, enter the duration (in ms) of the function tone.
8. In the Function Tone Magnitude field, enter the level (in dBM) of the function tone.
Function Tone
TABLE 7. Standard Function Tone Frequencies
Function Tone
Number
Frequency
(Hz)
Function Tone
Number
Frequency
(Hz)
F1 1950 F9 1150
F2 1850 F10 1050
F3 1750 F11 950
F4 1650 F12 850
F5 1550 F13 750
F6 1450 F14 650
F7 1350 F15 550
F8 1250 F16 450