Lynx NGT-9000s
Installation Manual
Table 1-7: TSO Deviations
TSO NO.
DEVIATION
TSO-C147, 1.c
Due to the RF power requirement and inherent non-linearities in RF
transmitters, the harmonics of the transmitter exceed the RF radiated
emissions limit in DO-160G. ACSS deviates from DO—160G Section 21
Category M Radiated RF Emissions in the following frequency bands when
the transmitter is active:
2060MHz ± 5MHz (2nd Transmitter harmonic) Exceeds Cat M by as much
as15.6dB.
3090MHz ± 5MHz (3rd Transmitter harmonic) Exceeds Cat M by as much as
16.7dB.
4120MHz ± 20MHz (4th Transmitter harmonic) Exceeds Cat M by as much
as 22.7dB.
5150MHz ± 5MHz (5th Transmitter harmonic) Exceeds Cat M by as much as
12.2dB
TSO-C112d
The NGT-9000 does not perform Comm-A (broadcast or addressed) or
Comm-B Air-Initiated ADLP (Airborne Data Link Processor) link operations.
The NGT-9000 meets the certification of Level 2 transponders except for the
support of the above listed ADLP functions.
TSO-147
The use of traffic symbology as defined in DO-317A is equivalent level of
safety to the symbols define in TSO-C147.
ACSS submits that the use of the 0.1 inch character size for the TAS
characters (relative altitude tag) and use of 0.163 inch traffic symbols
provides an equivalent level of safety to the TSO-C147 specified character
and symbol sizes.
TSO-195a
The ACSS ATCRBS and ADS-B traffic in a track-up orientation when
heading source is unavailable. ACSS believes that removing the ADS-B
traffic or ATCRBS traffic from the display when the heading input is not
available would significantly reduce the value of the CDTI’s support in the
pilot’s see and avoid responsibilities.
ACSS proposes the DO-317A ASA AIRB application display TIS-B traffic,
with a NACv of 0, as a non-directional track similar to EVAcq. This removes
the contradiction between requirements and is in-line with updates in the
next revision of the MOPS (i.e., DO-317B).
ACSS proposes the DO-317A ASA AIRB application display TIS-B traffic by
reporting the most recent non-zero NACv reading confirmed over a 60
second interval.
ACSS will set the EVAcq and AIRB functions unavailable when ownship
position is beyond 85 degrees North or South latitude. The result is a
display of “Traffic Unavailable” on Panel mount units and an indication of
“Standby” for remote displays. However, for NGT-9000 installations, where
TAS is enabled, the range/bearing based TAS targets are displayed.
1.7.3 Non-TSO Functions
The Non-TSO functions information provided here and below is to support FAA Order 8150.1B, section
17.c.(3) and Order 8110.4C Change 3, section 6-9.b.(2),(3) and are covered throughout this installation
manual as applicable. All Non- TSO functions are provided for situational awareness and are not
catastrophic or hazardous (per FAA Notice 8150.6 Section 5(f) (4)). Non-TSO functions are functions not
covered by a TSO approved Minimum Performance Standard/Specification (MPS) and are distinct and
independent, i.e., are not a supporting or additional feature of another TSO’s function.
The Lynx NGT-9000s and DCM do not have any Non-TSO functions.
Page 1-18
General Information
0040-17001-01
January 15, 2015
Revision A
