VAL Avionics NAV 2000 Guia de Instalação descarregar pdf (Página 229)

SV-XPNDR-261/262 Installation, Configuration, and Testing

SkyView System Installation Guide - Revision R 11-11

Some of the protocols listed above may not contain all the required data for a compliant ADS-B

message, depending on the intended airspace regulations. Further information can be found in

the GPS Data section under the Transponder Settings of this chapter.

(US-Only) Direct Serial GPS Position Input for FAA 2020 ADS-B Out Mandate Compliance

To comply with the 2020 ADS-B Out Mandate in the US, the GPS position used for ADS-B Out

position reports must be directly connected to a suitable ADS-B Out device (in this case, the SV-

XPNDR-261), and, that GPS must meet TSO C166b. DO NOT connect any GPS (including

SkyView’s own GPS outputs) that does not meet TSO C166b directly to the transponder.

It is important to note that in the US, the ADS-B Out “mandate” and its associated GPS

requirements do not go into effect until 2020. If you do not already have an appropriately

TSO’d WAAS IFR GPS in the aircraft, you may continue to leave this Direct Serial unconnected

for the time being. Instead SkyView has the capability to send its GPS position to the SV-XPNDR-

261/262 using the SkyView<>SV-XPNDR-261/262 serial connectivity (see the GPS DATA option

under the “Transponder-Related SkyView Display Settings” in this section for more information

about configuring this option). Although SkyView’s GPS output does not meet the 2020

requirements, it can be used until then to “wake up” the ADS-B ground stations so that they

report back traffic targets around your aircraft’s position. Note that after 2020, only the SV-

XPNDR-261 is capable of meeting the 2020 ADS-B Out mandate – because of power

transmission requirements that the FAA ADS-B rules imposes. In other words, the SV-XPNDR-

262 cannot be used for 2020 ADS-B Out compliance credit.

Antenna Installation

The antenna should be installed according to the manufacturer’s instructions.

The following considerations should be taken into account when siting the antenna:

 The antenna should be well removed from any projections, the engine(s) and propeller(s). It

should also be well removed from landing gear doors, access doors or others openings

which will break the ground plane for the antenna.

 The antenna should be mounted on the bottom surface of the aircraft and in a vertical

position when the aircraft is in level flight.

 Avoid mounting the antenna within 3 feet of the ADF sense antenna or any COMM antenna

and 6 feet from the transponder to the DME antenna.

 Where practical, plan the antenna location to keep the cable lengths as short as possible

and avoid sharp bends in the cable to minimize the VSWR (voltage standing wave ratio).

Electrical connection to the antenna should be protected to avoid loss of efficiency as a result

of the presence of liquids or moisture. All antenna feeders shall be installed in such a way that a

minimum of RF energy is radiated inside the aircraft.

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VAL Avionics NAV 2000 Guia de Instalação Página 229