89000046-014 KSN 780/8XX/900 AeroNav AML STC Installation Manual for Helicopters
Rev 0 Page 1-5
© Honeywell International Inc. Do not copy without express permission of Honeywell.
Sensitivity -123 dBm
GPS System Design Assurance (SDA) DO-178B Level B, DO-254 Level B
GPS Source Integrity Level (SIL) 3 – Enroute
Source Integrity Level Supplement (SIL
SUPP
) 0 – “per hour”
Navigation Accuracy Category Velocity (NAC
V
) Category 3 [< 1 m/s]
ADS-B installations should use a NACv of 1 unless
GPS tests support a higher category. The AXP340
requires a NACv of Category 1 [< 10 m/s] or
better.
Receiver Class TSO-C146d Class Gamma 3 receiver that complies
with AC 20-138C
Table 7 AeroNav 880/900 GPS Specifications
1.4.1.4 AeroNav 900 VHF Communication Transceiver Specification
Audio Output
65 mW into 150Ω load
Audio Response <6dB Variation from 350 to 2500 Hz, 4kHz -18dB
AGC Characteristics <6dB Variation from 10uV to 10mV
Sensitivity 4uV (6dB (S+N)/N 30% mod @ 1KHz)
Spurious Response
10mV spurious signal produces no more output than a desired
signal at 6dB (S+N)/N
Transmitter Power 16W or 10W @ 28V, 10W @ 14V (Typical)
Transmitter Duty Cycle Recommended 10% maximum
Modulation Capability 70%
Carrier Noise Level -39dB (S+N)/N
Frequency Stability >2.5 ppm
Demodulation Audio Distortion <12% @ 70% modulation
Sidetone Fidelity 300-2500 Hz
Demodulation Audio Response <6dB Variation from 300 to 2500 Hz
Table 8 VHF Communication Transceiver Specifications
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