Questions tagged [radio-communications]

Radio is the primary way that pilots communicate with air traffic control and with other aircraft.

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4
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2answers
1k views

How do I pick the right ATC channel to listen to my flight?

I'm trying to listen to my flight's ATC communications (flying United out of SFO). What is the difference between ramp, ground, and departure channels? Ground and departure have multiple frequencies, ...
6
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3answers
437 views

How do I figure out the right pronunciation for transitions?

For example, the CNERY transition,* how exactly is this pronounced? On the VATSIM community, it seems there's a huge debate on what this is called. Some people say CONNERY, and some people say SCENERY....
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1answer
323 views

What phraseology does ATC use with jet fighter pilots? [closed]

What do they usually say or ask when the fighter pilot wants to take off, when it's in the air, and what is the reply from the fighter pilot?
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1answer
214 views

Need more volume with my aviation headset (David Clark OneX). I wear hearing aids

Does anyone know of a way to get more volume out of my David ClarK ANR aviation headset. I wear hearing aids and often fly in older airplanes with older radios that are scratch/weak/etc. I select ...
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2answers
1k views

When is 'heavy' used in callsign?

I have heared at ATC communication that some aircraft uses a heavy word in the call sign. What does heavy means? When it is used? Is it used when aircraft is heavier than 200-300 tons?
2
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1answer
97 views

Which pilot (pilot flying, pilot monitoring) handles CPDLC (operates CPDLC interface)?

This question relates to commercial flights, typical two-pilot crew: In some airspaces, e.g. North Atlantic, pilots and Air Traffic Control use Controller Pilot Data Link Communication (CPDLC, ...
4
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1answer
1k views

What steps are needed to communicate with ATC on an A320?

In the description to this video, Captain Joe says that it took this inexperienced person 20 minutes to establish radio contact with ATC (in an A320 simulator). This seems like an awful lot of time ...
36
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6answers
15k views

Why do we say certain things three times (e.g., “Mayday, Mayday, Mayday”), rather than two or four?

Repetition is a key characteristic of communication in the control tower, cockpit, and control room. Some phrases, like "Mayday" get repeated. The speaker says the same thing three times. We know ...
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2answers
339 views

While flying, how do I contact someone who is on the ground?

As a regular General Aviation pilot, how do I contact or relay a simple message to someone on the ground? For example, to update a friend, family member, or taxi company with an ETA or a meeting point....
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1answer
190 views

What is this dome used for? [duplicate]

I have seen this dome on the top of some 737-800 airplanes and am curious to know what is it for. Is the a communication antenna for the satellite connection and in-flight internet that some airlines ...
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2answers
920 views

How unusual were MH370's final ATC exchanges?

There are 2 noteworthy occurrences in the ATC radio transcript within just minutes of a 3rd noteworthy, quite unprecedented occurrence in aviation history: At 01:07:55 MH370 unnecessarily reported ...
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1answer
79 views

Restore air traffic controllers' instructions from aircraft tracks

Is it possible to understand what commands had been given to an aircraft if you look at its track containing information about lat, lon, altitude, speed and course? Is there anyone who has already ...
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2answers
329 views

Is the whole world's airspace covered by ATC? [closed]

I'm an enthusiast and have only flown flight/atc simulators (on the VATSIM network). Obviously sometimes the airspace you are flying in is not covered by any ATC (so I have to set my frequency to ...
4
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1answer
631 views

When flying in uncontrolled airspace, which ATC frequency should I contact if I have an emergency?

Question 1: If I am flying in uncontrolled airspace and I have an emergency, should I report on 121.5MHz if no ATC is within line of sight communication (which means I cannot hear the ATC and the ATC ...
0
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1answer
156 views

Please provide some expert commentary to the aborted flight of the German chancellor [closed]

This week the German chancellor's plane (an Airbus A340-300) had to abort the flight due to loss of communications. The newspaper write they only had a satellite phone left1: Die ...
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0answers
88 views

How does a plane land without any radio connections? [duplicate]

It has been reported today that the German government plane "Konrad Adenauer", operated by the Luftwaffe, had a total loss of radio connection and diverted to Köln. That made me think the following: ...
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4answers
6k views

Where do extra planes come from?

Last night, I had to change planes at LAX because the United Airlines B737 that I was flying on had radio problems and thus could not fly over the ocean. One of the hi-frequency radios had problems, ...
6
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7answers
8k views

Best way of learning the aviation alphabet?

I want to learn the aviation alphabet, and when searching the Internet on how to, I see a plethora of approaches, so I thought of asking here! If it's primarily opinion based, let me know.
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2answers
159 views

Can you broadcast a very low power nav vor signal in air?

Are there any FCC restrictions on broadcasting a test nav signal on 108.0 in the air? Or perhaps on other nav frequencies that can be received within the navigation band?
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2answers
606 views

Who defines the callsign for radio communication? [duplicate]

I started flying with VATSIM and but I couldn’t find a proper answer to this question online. Who defines a callsign for a plane in a given flight? Is a callsign set to a airplane? Is it related to ...
4
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1answer
532 views

What, if any, are the rules on ATC politeness?

There are plenty of recordings available of ATCs acting impolite, in the linked video, the pilot says he will file a report about the conduct of the ATC. Would this actually result in any ...
2
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1answer
453 views

What is the procedure following a near miss?

This is a follow-up to this question - in particular, to this video posted in MichaelK's answer. What would be the correct procedure for the pilot to follow in this situation? (That is, after a near ...
4
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1answer
258 views

How to advise others of imminent danger?

In a case such as United 326 - where an aircraft got cleared for takeoff while other planes at the same time get cleared to cross that runway - how would an outside party that picks up on the mistake ...
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3answers
940 views

Why would a pilot on final to a towered airport not speak up when ATC clears another aircraft to land on the same runway, without mentioning them?

Every time I watch AOPA's Accident Case Study video Communication Breakdown, I'm left wondering. Here's an aircraft (in this case, '1DA) on final approach for landing on a towered airport, when ...
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1answer
379 views

What happens if an ATC tower is completely disabled? [duplicate]

What is the procedure for aircraft, if the ATC they were relying on to land, is, in some way, completely disabled? (for example there is a fire that destroys the whole building and all equipment). If ...
5
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3answers
1k views

What is the vocabulary used by fighter pilots used to communicate?

As far as I understand, fighter pilots or more general military aircrews will use a dedicated phraseology to communicate with each other, which is different to communicating to ATC. Is this ...
3
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1answer
2k views

How do you calculate the range of a VHF transmitter that is on-board an aircraft?

I'm trying to calculate the range of a VHF transmitter on an aircraft output power 50W, frequency 130MHz, and reciever sensitivity of -100dBm. The calculations I have made give me ridiculously high ...
15
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2answers
3k views

Is it the tower's purview to recall an aircraft from the runway for loading the wrong cargo?

On August 17, Ryanair flight FR 11 entered the runway after already being delayed for 1.5 hours, only to exit at the first available opportunity. After being jokingly welcomed to Stansted from where ...
23
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3answers
7k views

What is your responsibility when a distraught pilot is on frequency?

I found the recent SeaTac incident with a suicidal pilot frightening. I myself remember being in very bad places mentally, and it got me to wonder what I should do if someone is on frequency, making ...
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4answers
5k views

Are the ICAO phonetic numbers used anywhere?

I ran across a table of ICAO (NATO) approved phonetic number pronunciations. As early as I can remember (50+yrs) in the United States "nin-er" is the only one I ever remember hearing in aviation and I ...
15
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1answer
3k views

What is the correct phraseology for "runway 03 R”?

What phraseology is normally used for "runway 03 R" by air-traffic control and pilots? A couple of possible options I came up with: runway zero three R runway three R runway zero three right runway ...
13
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3answers
868 views

Does a line up and wait instruction clear me to backtrack the runway?

I had an interesting occurrence at the start of a recent flying lesson, at an aerodrome with ATC service. We were holding at A and completed our power checks. We hadn't requested nor been offered an ...
46
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3answers
14k views

Is it OK to greet ATC?

My instructor told me that courtesies are forbidden in radio communication, however, we usually start conversation as "Turany Ground, OK-ABC, good morning, (... request)". I find it natural. Is that ...
23
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3answers
8k views

Why does the ICAO alphabet use “Charlie” for C?

Why does the ICAO alphabet use "Charlie" for C? Specifically, why choose "Charlie", which has a "Ch" sound, rather than a word with the hard "C" such as "Carl"? A cursory Googling turns up nothing.
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2answers
824 views

What is the ATC protocol for hijackings? [closed]

If a commercial aircraft is successfully hijacked, by a competent pilot / pilots, and they make contact with ATC for regular requests (i.e. weather updates, flight path information or clearing air ...
2
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0answers
124 views

How strongly is airband affected by severe thunderstorms in practice?

In light of this question I was very surprised to learn that despite operating on a higher frequency (108 MHz upwards) than the standard FM broadcasting, airband uses amplitude modulation (AM) instead ...
14
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2answers
1k views

Does an airline have to pay if fighters intercept one of its aircraft?

It sometimes happens that because loss of radio communication or because wrong frequency tuned in during ATC handover etc... a country has to send fighters to intercept an aircraft in its airspace. If ...
0
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1answer
208 views

What is the usual range of Approach and En Route ATC VHF radios? [duplicate]

I was wondering what is the regular range of Approach VHF radios used by ATC (normally 50W)? And what about En Route VHF radios (usually 100 or 250W)?
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4answers
13k views

How do civilian pilots and ATC verify that other people on the radio are who they claim to be?

I am interested in authentication - how identity is verified - in civilian aviation radio transmissions. I know that when someone is speaking on the radio he tells his call sign. But is there any ...
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1answer
1k views

Is there any source of live ATC audio with subtitles?

I'd like to know if there is a way to hear ATC and pilots' communications, with subtitles.
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1answer
299 views

How do I properly report sighting a drone or hobby UAV to ATC?

How would one go about reporting a drone (hobby UAV) sighted in the airspace of an airport on frequency, specifically to Tower? For example: I am doing patterns around the airport when to the ...
7
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1answer
311 views

If airports with pilot controlled lighting share a CTAF frequency, could the lights be triggered at multiple airports?

In the US, CTAF frequencies can be shared between several uncontrolled airports. That is, a pilot around airport A can hear the transmit of another pilot utilizing airport B. The question is can a ...
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1answer
185 views

When can a tower's callsign differ from the airfield name, and how do I find the proper callsign?

It seems like a lot of air traffic control towers use callsigns that are much different from the name of the airfield. For example, Lehigh Valley International (ABE) has "Allentown Tower." "...
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0answers
110 views

Are there any aviation vehicles for Internet service?

Facebook announced on Wednesday (2018.06.27) that it is ending its Aquila drone program after four years of development. Aquila was a high-altitude platform station (HAPS) system designed to deliver ...
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2answers
120 views

Is there a recommended time to pause before transmitting, after changing to a new frequency?

Does any aviation authority have a recommendation of how long to listen after changing to a new frequency before making a transmission? source
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2answers
239 views

ATC application to listen in to current flight? [closed]

I was wondering if there is some sort of app or website that allows people (well, me as a passenger) to listen in to the ATC of my current flight? (Assuming the flight has passenger wifi). If this is ...
3
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2answers
298 views

Is a ground station radio license required for UAS operations in the US?

When conducting UAS operations would a PIC or Spotter be considered a ground station or an air station? The communications would concern a sUAS in the air, but the radio is physically on the ground. ...
1
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1answer
671 views

What does “Last Call” mean on CTAF frequency?

At non-towered airports I sometimes hear pilot's using the CTAF use the term “last call” as they depart the traffic pattern. This is not listed in the AIM. What information is this suppose to convey ...
5
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3answers
392 views

Should I inform ATC about minor deviations to maintain VFR while on practice instrument approaches?

When talking to approach control for the purpose of performing practice instrument approaches in VMC with a safety pilot, the pilot (and safety pilot) is required to "maintain VFR." However, the pilot ...
2
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1answer
547 views

Are radio channels used by airliners half-duplex channels?

Can a pilot transmit and receive information at the same time? Or can he either transmit or receive but not at the same time? I thought communication channels were half-duplex because this reduced ...

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