Page 78 - GEN - 2025

0.39 - 0.36 Medium to good 4

0.35 - 0.30 Medium 3

0.29 - 0.26 Medium to poor 2

0.25 and below Poor 1

11 Failures and Emergencies

As with any field of human endeavor flight operations do not always go according

to plan. In the worst case we may have to apply procedures designed to gain

assistance in difficult situations. In this chapter we will consider communications
failure and emergency procedures.

11.1 Communications Failure

11.1.1 Breakdown of Communications

Occasionally (rarely) communication between aircraft and ground stations can
break down. It could be that either party has a partial failure (receiver failed,

transmitter okay or vice versa) or even a total failure of equipment. The

breakdown may be caused by interference or by wrong selection.

11.1.1.1 Actions

The most common reason for lack of communications is usually “finger trouble”.
Therefore you should check:

- Correct frequency selected

- Volume control not turned too low or squelch level too high
- Microphone/headset plugs fully home

- The aeronautical station is open

- You are within radio range

GEN radio 2025 - Midtjysk Flyveskole 78