User's Manual

SYSTEM DESCRIPTION AND INSTALLATION MANUAL
TCAS 3000 Traffic Alert and Collision Avoidance System
34−43−23
Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 1−20
15 Dec 2005
Table 1−6. TCAS 3000 Computer Unit Leading Particulars (cont)
Item Specification
• Temperature / Altitude [A2F2]:
− Operating Temperature . . . . . . . . . . . . . . . . . . . . . . −55 to +70 degrees C
− Ground Survival Temperature . . . . . . . . . . . . . . . . −55 to +85 degrees C
− Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sea Level to 55,000 feet
− Loss of Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +40 degrees C for 300 minutes minimum
RF Transmitter Characteristics:
• Transmitter Frequency . . . . . . . . . . . . . . . . . . . . . . . . . 1030 ± 0.01 MHz
• RF Peak Output Power:
− Minimum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53.3 dBm (210 Watts)
− Nominal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.3 dBm (335 Watts)
− Maximum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57.3 dBm (540 Watts)
• Unwanted Output Power in an Inactive State . . . . . . −72 dBm
• Pulse Timing Characteristics:
− Pulse Rise Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.05 to 0.10 microseconds
− Pulse Fall Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.05 to 0.20 microseconds
− ATCRBS S1, P1, P3, P4 Duration . . . . . . . . . . . . 0.08 ± 0.05 microseconds
− Mode S P1, P2 Duration . . . . . . . . . . . . . . . . . . . . . 0.08 ± 0.05 microseconds
− Mode S P6 Duration . . . . . . . . . . . . . . . . . . . . . . . . 16.25 ± 0.125 microseconds (short)
30.25 ± 0.125 microseconds (long)
• Whisper−Shout Characteristics:
− Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 26 dB attenuation by 1 dB steps
− Absolute Tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . Relative to the 0 dB step, the attenuation
of each step does not exceed the
nominal attenuation by more than ±2 dB
− Relative Tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . Step increments are ±0.5 dB and
monotonic
RF Receiver Characteristics:
• Receiver Frequency Range . . . . . . . . . . . . . . . . . . . . . 1087 to 1093 MHz
• Receiver MTL Over Frequency . . . . . . . . . . . . . . . . . .
(Normal Operation)
−77 ± 2 dBm (≥90% Mode S and
ATCRBS replies decoded)
• Receiver Dynamic Range . . . . . . . . . . . . . . . . . . . . . .
(Normal Operation)
−77 to −23 dBm (≥99% Mode S and
ATCRBS replies for signal levels greater
than MTL +3 dB)