Lynx NGT-9000 - Section 2 Installation

Lynx
®
NGT-9000
Pilot’s Guide 2-35
Operation - Panel Mount
Other Aircraft Ground Filtering
If the aircraft is at or below 1700 ft AGL, the trafc Advisory system
(TAS) will not display or calculate alerts for other aircraft which are
determined to be on ground (not airborne). Intruders determined to
be below 380 ft AGL are considered to be on ground and will not be
output with the TAS active trafc output.
(Release 2.1 or greater) Conguration Option “TAS Ground Filtering”:
The on ground (alternate) determination can be set for 5ft (instead of
380 ft AGL).
NOTE
Since the Lynx NGT-9000 also receives ADS-B trafc
information, aircraft no longer under TAS surveillance
may still be displayed based on the received ADS-B trafc
data.
Interference Limiting
To assure that interference effects from active TAS equipment are
kept to a minimum, the FAA requires TAS equipment to “interference
limit,” i.e. reduce its transmit power, when it is operating in congested
airspace. This limiting function is based on the number of TCAS II
interrogators detected via Mode S broadcast reception and the reply
rate of the aircraft transponder. Interference limiting reduces the
effective surveillance range of the TAS equipment and is independent
of the display range selected.
NOTES
1. Selected display range has no affect on the surveillance
range of the TAS.
2. This interference limiting function is for active TAS and
does not affect the range at which ADS-B reporting
trafc will be received. It also does not limit the range at
which the Lynx NGT-9000 ADS-B output will be received
by other aircraft.
3. Dual TAS/ATAS operation where aircraft tracked by both
alerting systems will alert based on the ATAS system.
Aircraft tracked only by TAS in this scenario will still alert
according to the TAS rules.