Sep 2012 Lesson 6.2 Radio Communication

Reference From the Ground Up Chapter 8.4: Radio Communication Procedures Pages

Introduction There are guidelines and standard procedures for aviation radio communication.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 radioIt’s very important that pilots know these in order to communicate effectively around the world over aviation radio

Outline Number, Alphabet, and TimeNumber, Alphabet, and Time Standard PhrasesStandard Phrases Communication PriorityCommunication Priority Radio TechniqueRadio Technique Emergency CommunicationEmergency Communication

Numbers Pronunciation:Pronunciation: –0ZEE-RO5FIFE 1WUN6SIX 2TOO7SEV-en 3TREE8AIT 4FOW-er 9NIN-er –Thousand:TOU-SAND Decimal:DAY-SEE-MAL Examples:Examples: –10One Zero 19One Niner 800Eight Zero Zero One One Thousand

Phonetic Alphabet AAlfaNNovember BBravoOOscar CCharliePPapa DDeltaQQuebec EEchoRRomeo FFoxtrotSSierra GGolfTTango HHotelUUniform IIndiaVVictor JJulietWWhiskey KKiloXX-ray LLima YYankee MMike ZZuluAAlfaNNovember BBravoOOscar CCharliePPapa DDeltaQQuebec EEchoRRomeo FFoxtrotSSierra GGolfTTango HHotelUUniform IIndiaVVictor JJulietWWhiskey KKiloXX-ray LLima YYankee MMike ZZulu

Time 24 hour system used to express time:24 hour system used to express time: –12:00 midnight :30 am0030 2:15 am0215 5:45 am :00 noon1200 3:30 pm :50 pm2250 In aviation, co-ordinated universal time (UTC, Z, or zulu) is normally usedIn aviation, co-ordinated universal time (UTC, Z, or zulu) is normally used

Standard Phrases AcknowledgeLet me know you have received and understood this messageAcknowledgeLet me know you have received and understood this message AffirmativeYesAffirmativeYes BreakI hereby indicate the separation between portions of the messageBreakI hereby indicate the separation between portions of the message ConfirmMy version is… is that correct?ConfirmMy version is… is that correct? CorrectionI have made an error, the correct version is…CorrectionI have made an error, the correct version is… Do you read?I have called you more than once, if you are receiving me, replyDo you read?I have called you more than once, if you are receiving me, reply Go aheadProceed with your messageGo aheadProceed with your message

Standard Phrases How do you read me?Can you hear me clearly?How do you read me?Can you hear me clearly? I say againI will RepeatI say againI will Repeat NegativeNoNegativeNo Out My transmission is ended, I do not expect a reply from youOut My transmission is ended, I do not expect a reply from you OverMy transmission is ended, I expect a reply from youOverMy transmission is ended, I expect a reply from you Read backRepeat this message back to me after I have given “Over”Read backRepeat this message back to me after I have given “Over” RogerOkay, I have received your messageRogerOkay, I have received your message

Standard Phrases Say againRepeatSay againRepeat Speak slowerTalk more slowlySpeak slowerTalk more slowly Stand byI must pause for a few secondsStand byI must pause for a few seconds That is correctYou have the correct informationThat is correctYou have the correct information VerifyCheck with the originatorVerifyCheck with the originator WilcoYour instructions received, understood, and will be complied withWilcoYour instructions received, understood, and will be complied with

Communication Priority Communication over the radio follows the following 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 Call-upCity tower, this is Cessna one seven two foxtrot juliet echo sierra, (over)Call-upCity tower, this is Cessna one seven two foxtrot juliet echo sierra, (over) Reply Foxtrot juliet echo sierra, (this is) city towerReply Foxtrot juliet echo sierra, (this is) city tower MessageCity tower, foxtrot juliet echo sierra is transiting through the zone eastbound en route to OshawaMessageCity tower, foxtrot juliet echo sierra is transiting through the zone eastbound en route to Oshawa AcknowledgementFoxtrot juliet echo sierra, city tower, cleared through the zoneAcknowledgementFoxtrot juliet echo sierra, city tower, cleared through the zone EndFoxtrot juliet echo sierra, (out)EndFoxtrot juliet echo sierra, (out)

Communication Checks Radio operators can request radio checks to determine Readability and/or StrengthRadio operators can request radio checks to determine Readability and/or Strength NumberReadabilityStrengthNumberReadabilityStrength –1UnreadableBad –2Readable now and thenPoor –3Readable with difficultyFair –4ReadableGood –5Perfectly ReadableExcellent

Distress Distress call is made when an aircraft is in grave and imminent danger and requires immediate assistanceDistress call is made when an aircraft is in grave and imminent danger and requires immediate assistance Distress call: Mayday – Mayday – MaydayDistress call: Mayday – Mayday – Mayday If in distress, the first call should be made on the air- ground frequency in useIf 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: MHzIf no reply on current frequency, switch to distress frequency: MHz

Urgency 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 sightUrgency 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 requiredAlso can be used if an aircraft is having difficulties, but immediate assistance is not required Urgency call: Pan Pan – Pan Pan – Pan PanUrgency call: Pan Pan – Pan Pan – Pan Pan

Safety Safety call indicates that station is about to transmit an important navigation or weather warning to aircraft in flightSafety call indicates that station is about to transmit an important navigation or weather warning to aircraft in flight Safety call: Security – Security – SecuritySafety call: Security – Security – Security