General
Information
GNS 480 (CNX80) Installation Manual560-0982-01 Rev A
1-9
1.3.8 NAV
R
ECEIVER
P
ERFORMANCE
1.3.8.1 VOR
TSO/JTSO compliance ..................................TSO-C40c (RTCA/DO-196)/JTSO-2C40
Operational class ...........................................N/A
Accuracy category .........................................B {-46
o
C to + 55
o
C }
Frequency range.............................................108.00 to 117.95 MHz in 50 kHz increments
Frequency tolerance.......................................0.0008%
Cross modulation products ............................At least 60 dB down
Receiver sensitivity........................................108 MHz –115 dBm typical
117 MHz –117 dBm typical
Course accuracy.............................................RTCA DO-196 two sigma limit: 3
o
GNS 480 performance: less than 0.5
o
typical
Audio output ..................................................With a 1 kHz tone 30% modulation at least 100 mW
output into 500
Ω
loads
Ident/voice .....................................................With 100 mV input, 30% modulation at 1020 Hz,
the ident/voice tone ratio shall not be less than15 dB
Audio response ..............................................Less than 6 dB variation from 350 Hz to 2500 Hz
1.3.8.2 Localizer
TSO/JTSO compliance ..................................TSO-C36e (RTCA/DO-195)/JTSO-C36e
Operational class ...........................................A {manual landing systems}
Accuracy category .........................................B {-46
o
C to + 55
o
C }
Frequency range.............................................108.00 to 111.95 MHz
Frequency tolerance.......................................0.0008%
Cross modulation products ............................At least 60 dB down
Receiver sensitivity........................................-115 dBm typical
Centering error...............................................RTCA DO-195 two sigma limit: 6.6% of full scale
GNS 480 performance: less than 1.0% typical (1.5 mV)
Audio output ..................................................With a 1 kHz tone 30% modulation at least 100 mW
output into 500
Ω
loads
Ident/voice .....................................................With 100 mV input, 30% modulation at 1020 Hz,
the ident/voice tone ratio shall not be less than15 dB
Audio response ..............................................Less than 6 dB variation from 350 Hz to 2500 Hz
1.3.8.3 Glideslope
TSO/JTSO compliance ..................................TSO-C34e (RTCA/DO-192)/JTSO-C34e
Operational class ...........................................N/A
Accuracy category .........................................B {-46
o
C to + 55
o
C }
Summary of Contents for GNS 480
Page 1: ...GNS 480 CNX80 Color GPS Nav Com Installation Manual September 2004 560 0982 01 Rev A...
Page 10: ...Table of Contents viii 560 0982 01 Rev A GNS 480 CNX80 Installation Manual NOTES...
Page 30: ...General Information 1 20 560 0982 01 Rev A GNS 480 CNX80 Installation Manual NOTES...
Page 126: ...Periodic Maintenance 6 2 560 0982 01 Rev A GNS 480 CNX80 Installation Manual NOTES...
Page 150: ...Appendix D Interconnect Diagrams D 2 560 0982 01 Rev A GNS 480 CNX80 Installation Manual NOTES...
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