Radio communication
1 / 16

Radio Communication - PowerPoint PPT Presentation

  • Uploaded on
  • Presentation posted in: General

Radio Communication. Reference. From the Ground Up Chapter 8.4: Radio Communication Procedures Pages 219 - 229. Introduction. There are guidelines and standard procedures for aviation radio communication.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

Download Presentation

Radio Communication

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript

Radio communication




From the Ground Up

Chapter 8.4:

Radio Communication Procedures

Pages 219 - 229



  • There are guidelines and standard procedures for aviation radio communication.

  • It’s very important that pilots know these in order to communicate effectively around the world over aviation radio



  • Number, Alphabet, and Time

  • Standard Phrases

  • Communication Priority

  • Radio Technique

  • Emergency Communication



  • Pronunciation:


    • Thousand:TOU-SANDDecimal:DAY-SEE-MAL

  • Examples:

    • 10One Zero19One Niner800Eight Zero Zero11 000One One Thousand

Phonetic alphabet

Phonetic Alphabet

  • AAlfaNNovemberBBravoOOscarCCharliePPapaDDeltaQQuebecEEchoRRomeoFFoxtrotSSierraGGolfTTangoHHotelUUniformIIndiaVVictorJJulietWWhiskeyKKiloXX-rayLLima YYankeeMMike ZZulu

Radio communication


  • 24 hour system used to express time:

    • 12:00 midnight000012:30 am00302:15 am02155:45 am054512:00 noon12003:30 pm153010:50 pm2250

  • In aviation, co-ordinated universal time (UTC, Z, or zulu) is normally used

Standard phrases

Standard Phrases

  • AcknowledgeLet me know you have received and understood this message

  • AffirmativeYes

  • BreakI hereby indicate the separation between portions of the message

  • ConfirmMy version is… is that correct?

  • CorrectionI have made an error, the correct version is…

  • Do you read?I have called you more than once, if you are receiving me, reply

  • Go aheadProceed with your message

Standard phrases1

Standard Phrases

  • How do you read me?Can you hear me clearly?

  • I say againI will Repeat

  • NegativeNo

  • Out My transmission is ended, I do not expect a reply from you

  • OverMy transmission is ended, I expect a reply from you

  • Read backRepeat this message back to me after I have given “Over”

  • RogerOkay, I have received your message

Standard phrases2

Standard Phrases

  • Say againRepeat

  • Speak slowerTalk more slowly

  • Stand byI must pause for a few seconds

  • That is correctYou have the correct information

  • VerifyCheck with the originator

  • WilcoYour instructions received, understood, and will be complied with

Communication priority

Communication Priority

  • Communication over the radio follows the following priority:

    • Emergency communications (Distress and Urgency)

    • Flight safety communications (ATC clearances, airport advisories, position reports, flight plans etc)

    • Scheduled broadcasts

    • Unscheduled broadcasts

    • Other air-ground communications

Radio technique

Radio Technique

  • Call-upCity tower, this is Cessna one seven two foxtrot juliet echo sierra, (over)

  • Reply Foxtrot juliet echo sierra, (this is) city tower

  • MessageCity tower, foxtrot juliet echo sierra is transiting through the zone eastbound en route to Oshawa

  • AcknowledgementFoxtrot juliet echo sierra, city tower, cleared through the zone

  • EndFoxtrot juliet echo sierra, (out)

Communication checks

Communication Checks

  • Radio operators can request radio checks to determine Readability and/or Strength

  • NumberReadabilityStrength

    • 1UnreadableBad

    • 2Readable now and thenPoor

    • 3Readable with difficultyFair

    • 4ReadableGood

    • 5Perfectly ReadableExcellent



  • Distress call is made when an aircraft is in grave and imminent danger and requires immediate assistance

  • Distress call: Mayday – Mayday – Mayday

  • If in distress, the first call should be made on the air-ground frequency in use

  • If no reply on current frequency, switch to distress frequency: 121.5 MHz



  • Urgency call is made to a specific station when there is a an urgent message about the safety of a ship, aircraft or person on board or within sight

  • Also can be used if an aircraft is having difficulties, but immediate assistance is not required

  • Urgency call: Pan Pan – Pan Pan – Pan Pan



  • Safety call indicates that station is about to transmit an important navigation or weather warning to aircraft in flight

  • Safety call: Security – Security – Security

  • Login