Telex IP-223 technical manual 114, Function Tone Duration Field, Function Tone Magnitude Field

Setup Information

Function Tone

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 -60to 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.

TABLE 7. Standard Function Tone Frequencies

Function Tone	Frequency
Number	(Hz)
F1	1950
F2	1850
F3	1750
F4	1650
F5	1550
F6	1450
F7	1350
F8	1250

Function Tone	Frequency
Number	(Hz)
F9	1150
F10	1050
F11	950
F12	850
F13	750
F14	650
F15	550
F16	450

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.

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