Figure 5-23. Traffic Page (Tcad); Figure 5-25. Gad 42 Config Page - Garmin GNC 420A Installation Manual

5.2.18 TRAFFIC Page
(Only if 400 Series unit is configured for BFG Skywatch or Ryan TCAD interfaces)
Select the TRAFFIC Page (see Figure 5-22). This page
shows the BFG Skywatch or Ryan TCAD modes of
operation and current traffic situation.
For BFG Skywatch, this page shows:
1. The altitude mode—below (BLW), normal (NORM),
above (ABV), or unrestricted (UNR)
2. The operating mode—standby (STBY) or operating
(OPER)
3. Current altitude (ALT)
4. Altitude limits being imposed (LIM A and LIM B)
5. Heading, and barometric (BARO) and radio (RAD) altitude status.
For BFG Skywatch (see Figure 5-22), verify that the 400 Series unit can change the Skywatch operating
mode (STBY or OPER). In standby mode, verify that the Skywatch may be placed in self-test mode by
highlighting "Test Mode?" and pressing ENTER on the 400 Series unit. Refer to the BFG Skywatch
installation manual for system checkout.
For Ryan TCAD (see Figure 5-23), this page shows the
current shield mode and altitude. Verify that the TCAD
shield mode may be changed—Ground (GND), Terminal
(TML), Standard (STD), En Route (ENR), or Unrestricted
(UNR), and that the TCAD is reporting the correct altitude.
Refer to the Ryan TCAD installation manual for system
checkout.
5.2.19 RYAN TCAD CONFIG Page
(Only if 400 Series unit is configured for Ryan TCAD interface)
Select the RYAN TCAD CONFIG Page (see Figure 5-24).
This page shows the TCAD's current shield settings for the
selected mode, approach mode status, volume, mute status,
mute duration, voice alert selection, and system status.
Verify that the TCAD system status is GREEN. Also,
verify that shield settings and volume, mute duration, and
voice alert selection can be modified. Verify that changes
in mute (if a mute switch is installed) are shown. Refer to
the Ryan TCAD installation manual for system checkout.
5.2.20 GAD 42 CONFIG Page
(Only if 400 Series unit is configured for GAD 42 interface)
Select the GAD 42 CONFIG Page (see Figure 5-25). This
page allows remote configuration of a GAD 42 Interface
Adapter Unit. For details of this function, please refer to
Section 5 of the GAD 42 Installation Manual (P/N 190-
00159-00).
Page 5-16
Rev Q
Figure 5-22. TRAFFIC Page (Skywatch)

Figure 5-23. TRAFFIC Page (TCAD)

Figure 5-24. RYAN TCAD CONFIG
P

Figure 5-25. GAD 42 CONFIG Page

400 SERIES INSTALLATION MANUAL
190-00140-02