Honeywell International Inc. 9PGTPL-100A Benutzerhandbuch
Page 5
1 Mar 2006
34-45-54
MAINTENANCE MANUAL
TPL-100A Processor / Part No. 940-0530-001
Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
The high-density pattern is only used to separate transponder replies (i.e., for
de-garbling). The maximum power output (regardless of pattern density) is:
de-garbling). The maximum power output (regardless of pattern density) is:
•
53 dBm effective radiated power (ERP) for the front quadrant
•
49 dBm ERP for the side quadrants
•
44 dBm ERP for the aft quadrant.
The bottom antenna uses a 10-step interrogation pattern in four directions. It has a
maximum power of 39 dBm ERP. If no Mode C aircraft are present, a single Mode
C-only interrogation at 39 dBm ERP is transmitted to the monitor.
maximum power of 39 dBm ERP. If no Mode C aircraft are present, a single Mode
C-only interrogation at 39 dBm ERP is transmitted to the monitor.
Mode S surveillance listens first for the Mode S acquisition squitter (DF11) that is
transmitted by every Mode S transponder. The second step of MODE S surveillance is
to interrogate with Mode S UF0. This intergration is transmitted with a maximum power
of 53 dBm. Once a Mode S intruder is tracked, power programs are used to efficiently
manage the power transmitted to targets.
transmitted by every Mode S transponder. The second step of MODE S surveillance is
to interrogate with Mode S UF0. This intergration is transmitted with a maximum power
of 53 dBm. Once a Mode S intruder is tracked, power programs are used to efficiently
manage the power transmitted to targets.
Mode S intruders that are a lower threat are interrogated only once every five seconds.
Mode S intruders with a relative altitude greater than 10,000 feet from the own TCAS
aircraft are interrogated only once every 10 seconds. TCAS to TCAS coordination
messages are communicated using UF16 transmitted at full power.
Mode S intruders with a relative altitude greater than 10,000 feet from the own TCAS
aircraft are interrogated only once every 10 seconds. TCAS to TCAS coordination
messages are communicated using UF16 transmitted at full power.
Mode S intruders with a relative altitude difference of less than 10,000 feet are
interrogated at a rate of 0.2 Hz (once every five seconds) if the conditions that follow
are true:
interrogated at a rate of 0.2 Hz (once every five seconds) if the conditions that follow
are true:
•
TAU (time to closest approach) is more than 60 seconds.
•
Mode S intruder range is more than 3 nautical miles.
•
Both intruder and own TCAS altitude are less than 18,000 ft.
•
Either or both intruder altitude and own TCAS altitude is equal or greater than
18,000 feet.
18,000 feet.
•
Intruder range is greater than seven nautical miles.
For all other conditions where tracking of Mode S intruders is necessary, the aircraft
are interrogated at a rate of 1.0 Hz (one interrogation every second).
are interrogated at a rate of 1.0 Hz (one interrogation every second).
MILACAS-FR uses top and bottom directional antennas. The antennas give a beam
approximately 95 degrees wide. The beam is steered in the forward, side, or aft
direction. The nominal gain of the antenna is 3.6 decibels at an elevation angle of 85
degrees from vertical, or 5 degrees above the horizon. The antenna cables have a
nominal 2.5 decibel loss.
approximately 95 degrees wide. The beam is steered in the forward, side, or aft
direction. The nominal gain of the antenna is 3.6 decibels at an elevation angle of 85
degrees from vertical, or 5 degrees above the horizon. The antenna cables have a
nominal 2.5 decibel loss.