Garmin GPSMAP 496 User Manual download pdf (Page 158)

The GPSMAP 496 supports TIS input from a Garmin Mode S

transponder, such as the GTX 330.

To conﬁgure TIS input:

1. Press MENU twice. The Main Menu appears.

2. Highlight the

Setup tab.

3. Use the

ROCKER to select the Interface sub tab.

4. Highlight the Serial Data Format ﬁeld, and use the

ROCKER

to select TIS In.

The status ﬁeld indicates one of the following messages:

• Waiting For Data—searching for a valid TIS data stream.

• Data Available—receiving TIS data from the transponder.

• Data Unavailable—connection to transponder established,

but TIS service is unavailable.

• Lost Connection—an error occurred or the connection to the

transponder was lost.

TIS Symbology

TIS trafﬁc is shown on the GPSMAP 496 according to TCAS

symbology, graphically shown on an alert window, and on the

moving Map Page. A Trafﬁc Advisory (TA) symbol appears as a

solid yellow circle. All other trafﬁc is shown as a hollow white

diamond. Altitude deviation from own aircraft altitude is shown

above the target symbol if trafﬁc is above own aircraft altitude, and

below the symbol if they are below own aircraft altitude. Altitude

trend is shown as an up arrow (>+500 ft/min), down arrow (<-500

ft/min), or no symbol if less than 500 ft/min rate in either direction.

A TIS audio alert is generated whenever the number of Trafﬁc

Advisories on the GPSMAP 496 screen increases from one scan to

the next. Limiting Trafﬁc Advisories only reduces the “nuisance”

alerting due to proximate aircraft. For example, when the ﬁrst Trafﬁc

Advisories appear on the TIS display, the user is alerted audibly.

So long as a single aircraft remains on the TIS display, no further

audio alert is generated. If a second (or more) aircraft appears on the

screen, a new audio alert is sounded.

150 GPSMAP 496 Owner’s Manual

TIS > TIS SYMBOLOGY

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Garmin GPSMAP 496 User Manual Page 158