Guard Frequency
Definition
The international emergency frequency 121.5 MHz that all ATC facilities and many aircraft monitor continuously. Used for distress calls, emergency communications, and intercepting lost aircraft.
Why Guard Frequency Matters for Pilots
Understanding Guard Frequency is important for pilot certification exams and safe flight operations. This concept appears on FAA and EASA knowledge tests, and examiners may ask about it during oral checkrides. A thorough understanding of Guard Frequency helps you make better decisions in the cockpit.
Exam Tip
This concept is commonly tested in communications-related questions on FAA and EASA exams. Make sure you can explain Guard Frequency in your own words for the oral exam. Practice applying this concept to real-world scenarios, not just memorizing the definition.
Get tested on Guard Frequency — and the rest of the bank
A free 5-question check on the topics examiners actually ask, scored instantly, with the reasoning behind every answer.
Free forever. No spam. Unsubscribe anytime.
Share this with a fellow pilot
Related Content
Ferry Flight
Aviation glossary definition and exam tips.
Dmearc
Aviation glossary definition and exam tips.
Bird Strike
Aviation glossary definition and exam tips.
ATPL Theory Complete Guide
Master every subject covered in airline pilot exams.
Free Practice Exam
Test your aviation knowledge with real exam questions.
Built by a commercial pilot
Pass your written for $39 — every track, 60 days
Guard Frequency is one of 5,000+ practice questions in the All-5 Bundle: PPL / IR / CPL / ATPL / Part 107 / TAE. One-time payment, no subscription. Free 30-day extension if you fail your real exam.
Test your knowledge
Think you understand Guard Frequency? Challenge yourself with practice questions covering communications and all other exam subjects.
Try Free Practice QuestionsMore Communications Terms
Automatic Terminal Information Service(ATIS)
A continuous broadcast of recorded airport information including weather, active...
Pan-Pan
The international urgency call indicating a condition concerning the safety of t...
Readback
The pilot repetition of an ATC clearance or instruction to confirm correct recep...
Radio Frequency
The specific radio channel used for communication between aircraft and ATC or ot...
Would you pass the real exam right now?
Take a free practice quiz — real FAA-style questions, instant score. No signup to start.
Take the free quiz →