Radar Field Analyser - RFA641 Edition Date: 28-Feb-18
Calculation of this limit is performed according to the selected percentage of each type of FRUIT and the
associated reply duration. In the tests is always a test at maximum rate included.
On the FRUIT Type panel, the following settings are possible:
• Percentage of Mode S and Mode A/C FRUIT.
• Percentage of Mode A and Mode C FRUIT for the percentage of Mode A/C FRUIT.
• Percentage of All Call, Roll Call and TCAS FRUIT for the percentage of the Mode S FRUIT. The
percentages can be changed by moving the intersection point of the green, red and blue line in the
triangle.
• Percentage of Long Roll Call and Short Roll Call FRUIT for the percentage of the Roll Call FRUIT.
• Percentage of Long TCAS and Short TCAS FRUIT for the percentage of the TCAS FRUIT.
All percentages are instantaneously calculated and updated when new settings are chosen. The
Distribution indicator displays a graphical overview of all the settings on the FRUIT Type panel.
The FRUIT rate limit indicator shows the maximal number of FRUITs per second for the chosen settings.
7.3.2. FRUIT Content
The Fruit Content tab allows you to select the code information contained in the generated FRUITS. For
both Mode A en Mode C, a limited code group or the complete code group can be randomly generated. For
Mode A FRUITS the possibility is available to generate A codes with a minimum number of bits. For Mode-S,
the II code contents can be selected, in percentage. The codes inserted into the II fields to be generated
randomly can be selected using a checkbox. The relevant information to these tests is the Mode A
information. It is setup so that only A code 7777 is generated. The other settings are left default.
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