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How to - Change Transponder / TCAS Modes via the Surveillance (SURV) MFD Page

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SYSTEM OVERVIEW

The Surveillance (SURV) system consists of the following system that perform surveillance functions:

  • Traffic Collision Avoidance System (TCAS)

  • Transponder (XPDR)

  • Weather Radar (WXR) system

  • Terrain Awareness and Warning System (TAWS)

This FAQ will cover the TCAS and XPDR features of the SURV system. For WXR & TAWS systems, see the How to - Weather Radar (WXR) / Terrain Awareness and Warning System (TAWS) Operation guide instead.

SURV - CONTROLS AND INDICATORS

The SURV system functions can be controlled via

  1. SURV Panel on the Pedestal

  2. SURV Page on the on the MFD

image.png
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SURV Panel on the Pedestal

For the purpose of this guide, we are only interested in the TCAS section of this panel.

  • ABV pushbutton: Toggles the TCAS ABOVE display mode where traffic between -2700ft and +9900ft relative to the aircraft are shown. It is lit green when active.

  • BLW pushbutton: Toggles the TCAS BELOW display mode where traffic between -9900ft and +2700ft relative to the aircraft are shown. It is lit green when active.

  • TA ONLY pushbutton: Toggles the Traffic Advisory Only (TA ONLY) display mode where all Resolution Advisories (RA) are inhibited. It is lit white when active.

image.png.3d9cdf098af2b381c50be4dcf4143150.png
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SURV Page on the MFD

For the purpose of this guide, we are only interested in the XPDR and TCAS CONTROLS sections of this page.

To access the SURV page on the MFD,

  • Select SURV from the MFD Page Options List at the top left corner of the MFD, OR

  • Press the SURV shortcut key on the KCCU

 image.png image.png

image.png
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CHANGING XPDR MODES - MFD SURV CONTROLS PAGE
  • SQWK Entry Field: Click to enter your desired squawk code using the KCCU

  • MODE Option List: Switch between Automatic (AUTO) and Standby (STBY) mode where the XPDR does not transmit to any other station

  • ALT RPTG toggle: Toggles the altitude data transmission (ALT RPTG) to other stations

image.png
(Click to enlarge image)

 

CHANGING TCAS MODES - MFD SURV CONTROLS PAGE
  • (A) TCAS Mode Option List: Toggles between the various TCAS modes as follows,
    - TA/RA: Both Traffic Advisories (TA) and Resolution Advisories (RA) are active.
    - TA Only: Only Traffic Advisories (TA) are active.
    - STBY: Standby (STBY) mode where the TCAS does not perform any function, nor trigger any alerts
    Note: The TCAS Mode Options list is disabled in the XPDR STBY mode.
     

  • (B) TCAS Display Mode Option List: Toggles between the various filters for traffic display on ND as follows,
    - NORM: Only traffic between -2700ft to +2700ft relative to the aircraft is shown
    - ABV: Only traffic between -2700ft to +9900ft relative to the aircraft is shown
    - BLW: Only traffic between -9900ft to +2700ft relative to the aircraft is shown
    Note: The TCAS Display Mode Options list is disabled in the XPDR STBY mode.

image.png
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RESET ALL SURV MODES TO DEFAULT SETTING - MFD SURV PAGE

When clicked, the DEFAULT SETTINGS button automatically sets all the WXR, TAWS, TCAS and XPDR settings to their default position on both MFDs. A confirmation dialog is necessary to confirm selection. For TCAS and XPDR sections, when pressed,

  • TCAS Mode is set to TA/RA

  • TCAS Display Mode is set to NORM

  • XPDR Mode is set to AUTO

  • ALT RPTG is set to ON

image.png.6afb1756c0b853e929ca0da22043b1d0.png image.png.ca4bd9deb6e2f7c8bcad8b084eaa19b2.png
(Click to enlarge image)

DISPLAYING TRAFFIC ON ND

To display traffic on the ND, simply engage the TRAF pushbutton on the EFIS Control panel on the glareshield.
Note: Traffic is only displayed in ROSE NAV or ARC modes.

image.png
(Click to enlarge image)

The following symbols indicate the range location of traffic:

  • image.png Traffic is in the RA range.

  • image.png Traffic is in the TA range.

  • image.png Traffic is in the proximate range.

  • image.png Other traffic.

These symbols appear with:

  • Two Digits: that indicate the relative altitude (in hundreds of feet)

  • + or - symbols: that indicate whether the traffic is above (+) or below (-) the aircraft

  • An arrow: that indicates the vertical direction of travel of the traffic relative to the aircraft - climbing () or descending ().

image.png

Vrishabh Sehgal @Richboy2307 )
Community Team Member & Tester
iniBuilds Ltd. | inibuilds.com

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