Oral Prep - Radio Tuning and Radar

Question 1

What is the function of the VOICE/BOTH switch on the audio control panels?

Answer 1

Voice position: Station IDs are filtered out allowing only voice signals to be heard. Both position: Station IDs and voice signals are audible.

Question 2

What is the function of the EMER position of the Emergency/Normal switch on the Audio Control Panels?

Answer 2

• Pilot: Two-way communication on VHF 1, audio on NAV1 and aural
  warnings.
• Copilot: Two-way communication on VHF2, audio on NAV2 and aural warnings.

Question 3

In the event RTU 2 fails how can the #2 radios be tuned?

Answer 3

Press RTU 2 INHB switchlight on the back-up tuning unit and the ½ pushbutton on RTU 1, the Radio page on the FMS can also be used.

Question 4

In the event RTU 1 fails how can the #1 radios be tuned?

Answer 4

Press RTU 1 INHB switch/light on the backup tuning unit and the ½ pushbutton on RTU 2, the Radio page on the FMS can also be used.

Question 5

What are the normal TCAS selections?

Answer 5

AUTO, ON (traffic), REL, and NORM.

Question 6

What is the function of the XFR switch on the Radar Control Panel?

Answer 6

It transfers control of the WX radar display range to pilot’s or copilot’s display control panel.

Question 7

What is the GCS (Ground Clutter Suppression) function?

Answer 7

It decreases the intensity of ground returns in order to allow precipitation returns to be assessed more accurately.