Say again: the radio phrases Canadian ATC expects before your first solo

Every one of us has a transmission we did not catch. The controller comes back quick — a runway change, an altimeter, a frequency to switch to — and it goes past like a train through a station. Your thumb is already off the button and the words are gone. There is a professional move for that half-second, and it is not to guess and hope. It is two words: "say again." We say them on the line most weeks, and we said them constantly as students. What nobody warns you is that on your first solo the only voice left on the frequency is yours — and "say again" only helps if you know what to do with the answer when it comes back.

So here is a short set of standard VFR calls and readbacks worth making reflexive — automatic, costing you no thought — before the right seat empties. None of it is exotic; most of it is the ordinary traffic of a circuit. But several of these are places where the Canadian way parts company with what you will hear on an American podcast, and a habit imported from the wrong country earns you a puzzled "say again" from the other side of the mic.

The accent is in the numbers

Two habits in how you say numbers are worth fixing before they calcify — one of them a genuine Canada-versus-US difference, the other just standard aviation English that trips up beginners everywhere.

The first is the decimal, and it is the real Canadian tell. A frequency or an altimeter setting takes the word "decimal" as the separator — "one two six decimal seven" — or the digits simply run together, "one two six seven"; what you never say is "point."^[1] "Point" is the habit American videos leave you with, and it marks you the moment you key up.

The second is niner and fife, and this one is not Canadian at all — it is standard aviation English the world over. Controllers say "niner" for nine and "fife" for five when they pass you an altitude or an altimeter, because those two numbers are the easiest to lose in a noisy cockpit. You are welcome to copy them, but as a pilot you are not required to — "nine" and "five" are perfectly acceptable coming from you.^[1] The point is only to recognise them instantly when they come at you.

Say who you are — once, and in full

Your call sign is your aircraft's registration, and a Canadian registration starts with C, so the leading "Charlie" is the nationality marker everyone drops — what you actually speak is the last four characters. On first contact with any station you give all four; only once the controller shortens you to the last three do you start doing the same.^[1] Let them abbreviate first, then match — jumping straight to the short form before they have used it is a small tell of a rushed student.

Two more things ride on that first call and then get out of the way. Say your aircraft type on the initial call — "Cessna 172," not just "Cessna" — because a Cessna 150 and a Cessna Citation have nothing in common that matters to a controller; drop the type once you are established.^[1] And if you are flying into a field you do not know, add "unfamiliar" on that first call. It is not an admission of weakness — it tells the station to give you simpler routing and keep a closer eye on you.^[1]

"With information Bravo" — the ATIS handshake

At a towered airport with an ATIS, you listen to the recording first and then tell the controller you have it, by naming its letter: "with information Bravo." Monitoring the ATIS before you call the tower is expected, not optional,^[4] and checking the letter in on your initial call is how the controller knows you already have the current runway, wind and altimeter — so they do not have to read all of it to you.^[1] The letter changes through the day; say the one you actually heard.

Read back the things that keep airplanes apart

Here is a genuine Canadian-versus-American difference, and it surprises people: as a VFR pilot you are not required to read back every transmission.^[1][2] A bare call sign is often an acceptable acknowledgement. What you should read back are the items that keep aircraft separated — the runway in use, the altimeter setting, altitude and heading instructions, and transponder (squawk) codes.^[1] Read those back and you give the controller a chance to catch a number you copied wrong before it becomes a problem.

And put your call sign on every transmission, not just the first.^[1] It is the only way the controller knows the readback came from the airplane they were talking to, and not the one three miles behind you.

The one readback that is never optional: hold short

Everything above is a "should." This is a "shall." A hold-short instruction must be read back — every time, with the words and your call sign.^[1][2] If the controller says "hold short runway two-five," the answer is "holding short runway two-five," with your call sign attached — not a bare "roger," and not just your call sign. The hold-short words themselves have to come back out of your mouth.

The taxiway version of the same trap: a taxi authorization to your runway lets you cross taxiways on the way, but a runway is different — crossing or entering one always needs its own specific clearance, and that clearance gets read back too.^[1][5] "Taxi to runway two-five" is not permission to roll across runway three-zero on the way; wait for "cross runway three-zero," then read it back.

"Roger" is not "yes," and it is not "Wilco"

Three little words get muddled constantly, and the mix-up is worth ironing out before solo. "Roger" means only "I have received your transmission" — it is not "yes," and it is generally the controller's word, not the pilot's.^[1] If a controller asks you a yes-or-no question, the answer is "affirmative" or "negative," not "roger."^[1] And if you are being told to do something, "roger" does not commit you to it — the word that says I understood and I will comply is "Wilco."^[1] Most of the time the cleaner move for a student is simply to read the instruction back; the readback is the acknowledgement, and it doubles as your acceptance of a clearance.^[4]

When there is no tower, talk to the field

Most students solo at a controlled field, but plenty do it at an uncontrolled one — and "uncontrolled" does not mean silent. At many uncontrolled aerodromes there is a mandatory frequency, and the regulations spell out the position reports you must make on it and the listening watch you must keep.^[3] Two habits matter here.

First, when there is no controller, you address the aerodrome itself — "Sussex traffic," not a person — and you self-announce your position and intentions for everyone else to hear.^[1] If there is a flight service station on the field, make a short initial contact first and wait for their answer before you read out your position and altitude, because they may be working several frequencies at once.^[1] Second, make your inbound report early — the standard is at least five minutes before you reach the area, not as you arrive over the numbers.^[1][3]

Two words for when it goes wrong — and they are different

It will go sideways, and that is normal. You have two repair tools, and they are not interchangeable. If you did not hear a transmission, say "say again." If you heard it but did not understand it, say "I do not understand," and the controller will explain it in different words.^[1] Reaching for the right one saves a round trip: "say again" only gets you a repeat of the same words that already confused you, when what you needed was the plainer version.

None of these phrases is hard. The work is not learning them — it is wearing the grooves deep enough that they run on the thin slice of attention left after you have flown the airplane and figured out where you are. Get them dull, get them automatic, and "say again" stops being the sound of a student freezing and becomes what it is for the rest of us: just a pilot, cleaning up one transmission, and carrying on.