Radio Simulator
The RTR(A) written paper tests what you know. Part 2 tests how you sound — live, on frequency, with an examiner playing ATC. The Radio Simulator puts you on that frequency today: real ICAO phraseology, mandatory read-backs, examiner probes, emergencies, and a gradesheet at the end.
New to the simulator? Here's your walkaround
Seven things and you're ready to key the mic. Nothing here bites — mistakes cost points, never progress, and every flight can be flown again.
Start with Scenario 1 in LEARN mode — phrase chips build your calls for you and the radio tunes itself. When the words start coming on their own, switch to PRACTICE: no chips, you speak or type every call from memory, and you work the radio yourself.
Every flight rolls fresh: your callsign, the airport, the runway, the ATIS letter, the QNH, the wind. The briefing card holds all of it — the examiner expects you to arrive knowing your own details, and so does the simulator.
When it's your turn, the cue line (✦) tells you what the situation demands. TAP the round mic button, speak your call, then TAP IT AGAIN to send — the button glows red while it's listening. Prefer not to speak? Tap the chips in order (Learn) or type your call (Practice) and press TRANSMIT — typing scores exactly the same. On a phone, tapping is far more reliable than holding.
The amber SAY AGAIN button replays the last ATC transmission — exactly the phrase a real pilot uses. Use it freely; listening is half of radiotelephony.
On a handoff (“contact Tower one one eight decimal one”), dial the STANDBY frequency with the M−/M+/k−/k+ knobs and press ⇄ to make it active — in Practice mode, calling on the wrong frequency gets you nothing but static. When ATC assigns a squawk, tap the SQK digits to set it; IDENT flashes your radar return when a controller asks for it.
Miss a mandatory item and ATC probes you, exactly like the real practical: “confirm QNH?”. Get it wrong and you're corrected and asked to read back again. Each probe costs one point — the flight continues either way.
Every transmission is graded item by item — read-backs, callsign discipline, non-standard words, even your speech rate and filler words on voice calls. 50% is the pass mark, the same as RTR(A) Part 2. Fly the SAME flight again to beat your score, or roll a NEW one — no two are alike.
The theory behind every call — read it in the book
Every phrase this simulator grades is taught in the complete RTR(A) book, free on this site — written for the DGCA RTR(A) syllabus and aligned with the ICAO Manual of Radiotelephony. Fly a scenario, then read the chapter it drilled — that loop is how the phraseology becomes yours.
Or start at the beginning: the complete RTR(A) book — all 24 chapters covers regulations, radio theory and the full exam arsenal behind this simulator.