VAL Avionics NAV 2000 Guia de Instalação descarregar pdf (Página 234)

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

11-16 SkyView System Installation Guide - Revision R

you must convert it to hexadecimal. There is an Octal to Hexadecimal converter tool

available in the Support section of http://www.trig-avionics.com/.

The HEX CODE needs to be set to the aircraft’s assigned code for the transponder

to function properly. The default code of 000000 is not a valid code. If the code is

left at 000000, the transponder will only work in SBY mode. A caution message –

XPNDR HEX CODE NOT SET will appear if a transponder is configured in SkyView,

but the HEX CODE is not set to a valid number.

 VFR CODE: When the pilot presses the VFR button, a pre-programmed code will replace the

current squawk code. The pre-programmed code is set up here; the choice of code will

depend on the normal location of the aircraft. In the USA, the VFR squawk code is 1200. In

most parts of Europe, the VFR squawk code should be set to 7000.

 AUTO ALT/GND SWITCH: Allows the transponder to automatically switch between Airborne

and Ground modes. Available options include:

o NONE : Automatic switching disabled

o SQUAT SWITCH LOW ON GND: Utilizes a physical squat switch connected the SV-

XPNDR-261/262 per the above instructions. When this option is selected, the

transponder will consider the aircraft to be on the ground when this switch is low

(electrically grounded).

o SQUAT SWITCH LOW IN AIR: Utilizes a physical squat switch connected the SV-

XPNDR-261/262 per the above instructions. When this option is selected, the

transponder will consider the aircraft to in flight when this switch is low (electrically

grounded).

o AUTOMATIC (AIR DATA): The transponder automatically determines whether the

aircraft is in flight or not by using a combination of GPS and air data changes from

SkyView. Note that this option only works with transponder software 2.02 or above.

See the Transponder Software Updates section below for more information about

transponder software.

 AIRCRAFT CATEGORY: To assist ATC tracking of aircraft, an aircraft category can be

transmitted by Mode S transponders. Set as appropriate for your aircraft.

 AIRCRAFT LENGTH and AIRCRAFT WIDTH: On the ground, ADS-B transmits encoded aircraft

size information which is used by ATC to identify taxiing routes and potential conflicts.

Using the aircraft length and width (wingspan), in your current distance/speed units (meters

or feet), the SV-XPNDR-26 will calculate the appropriate size code for transmission.

 MAXIMUM CRUISE SPEED: Mode S transponders can transmit their maximum airspeed

characteristics to aircraft equipped with TCAS. This information is used to help identify

threats and to plan avoiding action by the TCAS equipped aircraft. The airspeeds are

grouped in ranges. Set as appropriate for your aircraft.

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VAL Avionics NAV 2000 Guia de Instalação Página 234