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TTG-7000 operation manual - AvionTEq

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SoftkeyFunctionSpecial Test Same as menu control item 1.Figure 3.1.2.4.1.3 illustrates the RTCA/DO-260 Special Test Altered Preamble Definition Menu. Thismenu allows the operator to change the preamble pulses of the Mode S message. The width, position,power and visibility of each of the preamble pulses can be changed. Transmissions are sentsimultaneously on the top and bottom antennas.12Figure 3.1.2.4.1.3 – RTCA/DO-260 Special Test Definition Altered Preamble MenuMenu Control Function1 Special Test combobox allows setting type of special test (Normal, Altered Preamble,Bit Failures, Overlapping Pulse)2 Preamble section allows alteration of Mode S preamble (Width, Position, ReferencePower, and Enable).SoftkeyFunctionSpecial Test Same as menu control item 1.Preamble Same as menu control item 2. Displays the softkeys to change theMode S preamble parameters.Reset<strong>TTG</strong>-<strong>7000</strong> User’s Manual Page 4290-<strong>7000</strong>-0001 Rev E

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