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

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125 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 ...
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0answers
37 views

Mixing RG58 cable with RG213 Cable [on hold]

Connecting a 50 ohm RG58 cable to 50 ohm RG213 will make an effect? I tried other day connecting small patch of RG58 with RG213 and there was a VSWR and power was reflecting back. Reason?Even though ...
3
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1answer
99 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 ...
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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 ...
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0answers
6 views

UHF transmitter Range for 50Watts [migrated]

Very curious to know the range of 50Wats transmitter of UHF range in nautical miles?The antenna used is 1/4 wave antenna of Jaybeam company. Can someone tell the exact formulation to find out the ...
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2answers
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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3answers
270 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 ...
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1answer
2k 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 ...
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1answer
142 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 ...
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3answers
12k 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 ...
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3answers
7k 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
360 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 ...
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0answers
98 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 ...
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2answers
488 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 ...
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1answer
63 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
11k 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
375 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
235 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 ...
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1answer
164 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
113 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
28 views

Does ATC also do blind transmission in loss of communication situation? [duplicate]

Since squawk 7600 doesn't necessarily mean that both voice-in and voice-out direction of radio communication fails, what is the ATC procedure in case an aircraft signalizes loss of communications? If ...
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0answers
99 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
105 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
186 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 ...
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2answers
101 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. ...
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1answer
237 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 ...
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2answers
155 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 ...
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1answer
174 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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3answers
182 views

What to look for when purchasing a headset

I'm currently a student pilot, and I'm starting at an aviation university this fall to major in commercial aviation. Needless to say, I will be flying a lot. I'm looking to upgrade to a nice headset ...
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1answer
201 views

Why do cathay pilots forget their flight number? [closed]

I hear so many times over frequency "cathay.. uh.. xxx" and always wonder if they have some kind of reason why pilots cant seem to memorize it.
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3answers
380 views

Is it possible for ATC to see who’s transmitting on the radio on their radar?

I don’t think ATC currently has the capability of seeing who’s actually transmitting on the frequency. If technology permits (probably by making a connection between the radios and the transponder), ...
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3answers
330 views

Flying VFR in uncontrolled airspace, what to do if one spots an apparently out-of-control fire on the ground?

Suppose I'm flying VFR in class G (uncontrolled) airspace, monitoring the local CTAF frequency while doing so. Maybe I'm alone in doing circuits around the local airport, or maybe I'm practicing ...
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2answers
118 views

Participating with “flight following”

What is the proper procedure for participating with "flight following" when leaving a non-control towered airport?
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3answers
2k views

When to switch from ground to tower frequencies at controlled airports in the US?

I have heard that you can switch to the tower frequency once you are at the runway hold line and are ready for takeoff without getting permission from ground control to switch frequencies. Is this ...
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2answers
136 views

Carrier frequency and transmit power of a commercial aircraft

I have a few questions on the radio comms. aspects of commercial aircrafts. At what (central) frequency does an aircraft communicate with a control tower? Is the communication over one frequency only?...
3
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1answer
78 views

When do I have to contact Centre when departing/arriving at an airport with an ATF?

I'm looking at St-Frédéric airport in Quebec, Canada (CSZ4) and specifically at the "COMM" section. It says that there is an Aerodrome Traffic Frequency (ATF) on 122.8 but it also seems to say that ...
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3answers
305 views

What are the radio characteristics of communications between tower and aircraft?

I have a few questions on the types of antenna used for tower-aircraft comms. What type of antennas are used today for tower-aircraft comms? Are they directional or omni-directional? What's the ...
6
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3answers
403 views

Can one “create” a private interpilot air-to-air frequency to chat?

I've been looking for an answer to this for the past couple of hours and can't find anything on the matter. (Yes, I've read this What radio frequencies are used for intercom in formation flying? , ...
3
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1answer
144 views

How many radio transmissions per hour occur on a given frequency over Europe and North Atlantic?

For one of our research projects, we want to simulate a north atlantic flight from Frankfurt, Germany to the U.S.. To make it realistic, we are also simulating air traffic control - both instructions ...
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1answer
114 views

How the Log Periodic Dipole Antenna of Localiser help in varying modulation depth?

Here Albert Helfrick speaks about 40% modulation depth for each tone in a localiser radio signal. However latest manuals of ILS manufacturers and google source speaks about 20% modulation depth, not ...
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2answers
110 views

What minimum radio communication equipment is required in a homebuilt aircraft in India?

Let's say I am building a single seat aircraft for flying in one's own country(India). What should be minimum set (Not only from compliance prospective but to have core set of communication for ...
15
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2answers
2k views

When replying to ATC, callsign first or last?

When I was in flight school, some instructor told me that it is the unknown ICAO standard that you should reply to an ATC call with your callsign first, like this: ...
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2answers
252 views

What is the name or part number of the Bose 'Lemo' aviation headset connector?

In a similar direction to this question, I was wondering if anyone knows the name or part number of the connector commonly featured on Bose aviation headsets such as the A20. It is commonly know as ...
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3answers
722 views

What radio equipment do pilots use to communicate with ATC?

I know of the transponders used for communication by Air Traffic Control, but apart from that, what radio equipment do pilots use to talk to ATC? What modulation method is used?
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1answer
374 views

Why is the Departure leg of the traffic pattern being mistaught as Upwind?

I hear a LOT of newer pilots and CFI's erroneously referring to the Departure leg of the traffic pattern as the Upwind. Ref. A.I.M. Sec 4-3-2. Actually had a Tower controller tell me "I'll call your ...
0
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1answer
158 views

What is the sequence of ATC frequencies for final approach at JFK?

Recently I was listening to liveATC.net and tried to understand the sequence of operations for the voice communications. However, it seems that there are a lot of frequencies for the approach ...
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2answers
776 views

Can a pilot still land if the tower gives confusing Information? [closed]

Recently an airplane crashed at Kathmandu airport in Nepal. The people that owned that plane claim that confusing information was given to the pilot by the control tower, and as a result the plane ...
7
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1answer
2k views

How can multiple airplanes prevent simultaneous communication between ATC?

If two planes try to talk at the same time, do you hear nothing or both? Let's say ATC clears someone to land and they read back. I wait 4 seconds and then ask them something, how do I know another ...
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2answers
223 views

Is it possible to isolate COM1 and COM2 on a Garmin G1000?

Is it possible to isolate COM1 to one pilot and COM2 to the other pilot? When I'm getting the ATIS it's hard to listen to both COM channels sometimes depending on the amount of traffic. I used to be ...
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1answer
90 views

Could maintenance data be downloaded via ATC facilities?

Could aircraft send maintenance data to the airport via ATC facilities (e.g., tower, TRACON, enroute)? Or are they only used for air traffic control?