F4IOZJN18FS
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F4IOZOlivier · radio amateur · JN18FS

Games

Games around radio: locators, DXCC, Q codes, the phonetic alphabet, bands and modes, satellites to catch, their frequencies, their orbits and their fact files, Doppler and an antenna to point, morse and pile-ups, QSOs to save, a station to wire, an antenna to tune, a fox to hunt, telemetry to decode. Every game fills your QSL album. Your games, records and badges stay in your browser.

Find the locator

The site names a Maidenhead locator, you find it on the map or the globe. Four levels, ten zones (from the whole world to around JN18FS), hints that cost points, against the clock if you dare.

4 levels10 zones23 badges

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Which DXCC?

A callsign, four flags: which DXCC entity is it from? Or the other way round. Combos, streaks, three lives or against the clock, from the common prefixes to the rarest.

2 ways3 levels15 badges

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Q codes and abbreviations

QRZ? QSL! 73… A code, its meaning, or the other way round — and for experts, the question (QRS?) or the statement (QRS). Combos, three lives or against the clock.

63 codes3 levels10 badges

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Phonetic alphabet

Alfa, Bravo, Charlie… Spell a callsign word by word, read spelled words back, or listen to them in the browser's voice — with some QSB for the seasoned.

3 wayslistening and QSB10 badges

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Which band?

The dial turns, the frequency shows: which band, from 160 m to QO-100? Then which segment of the band plan, or which exact use: FT8, the ISS, beacons… (IARU Region 1).

16 bands3 levels11 badges

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Which mode?

CW, FT8, RTTY, SSTV, packet, WSPR… A few seconds of signal made in the browser, its waterfall scrolling: by ear, which mode? With some hiss if you dare.

10 modeswaterfall10 badges

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Catch the pass

A real satellite passes over JN18FS on fast-forward: tap right at AOS, then at LOS. Perfect, combos, and a crowd of satellites where only one counts.

4 levelsreal passes11 badges

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Doppler

The sound of a real pass slides with the Doppler effect: turn the knob, keep the note on 1,000 Hz. VHF, UHF that flies, SO-50 in FM, and QO-100 to breathe.

4 modesby ear10 badges

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Point the antenna

A satellite is named: turn the yagi to it, azimuth and elevation, before time runs out. Then follow one through a whole pass, as a rotor does.

4 modessky dial11 badges

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Which satellite?

Up on UHF, down on VHF? FM repeater, linear transponder, APRS, SSTV… From its frequencies and its mode, find the satellite — or the other way round. The expert follows an inverting transponder.

7 satellites3 levels11 badges

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Higher, faster

Real orbits head to head: which flies higher, goes faster, laps the Earth first? The rings race round the Earth. Rank them, guess the height by eye.

duelsKepler11 badges

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Into orbit

Tilt, thrust, cut-off: put a satellite into low orbit like the ISS, into sun-synchronous orbit, then up to QO-100 by a Hohmann transfer. Too fast, it escapes; too slow, it falls back!

4 missionsNewton10 badges

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The footprint

A real satellite over the Earth: paint the area that sees it, the true footprint opens over it. At the horizon or above 10°, and two stations: can they talk?

4 levelsreal satellites10 badges

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Satellite fact file

Launched when, how many years ago, before or after the other? 1U, 3U or crewed station? SSTV or SSDV? The fact files of the picture satellites and the amateur satellites, the time line and the stacking cubes.

32 satellites3 levels11 badges

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Run your CubeSat

Build a 1U within its mass and volume, keep the battery between day and eclipse, download the pictures before the pass ends, save it from failures down to re-entry. Cards of real CubeSats to collect.

5 levels32 cards11 badges

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Decode the telemetry

A practice CubeSat's frames: voltage, panel currents, charge, temperatures. Find the fault, or spot the false alarm, and read why.

5 levelsfaults and false alarms9 badges

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QSL hunt

Every right answer, in every game, sends you a QSL card. Fill the album and the world map, open the bureau's envelopes, trade your doubles, earn WAC, DXCC, WAZ.

324 entities6 awards11 badges

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Copy by ear

The site keys in morse, you type what you hear: callsigns, words, Q codes. From 12 to 40 WPM, adaptive speed, noise and QSB, and the Koch method to learn.

12 to 40 WPMKoch method11 badges

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Pile-up

You are the rare expedition, and everyone calls at once. Copy, ask for a partial, chain the QSOs without breaking the log. Split for the brave.

4 levelsQSOs/min10 badges

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Save the QSO!

QRM, QSB, a pile-up, a sagging battery, a rising SWR, a storm, an emergency call: four possible reactions to each incident, only one really saves the QSO.

4 levels20 incidents9 badges

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Build your station

Power supply, radio, meter, tuner, preamplifier, rotor, PC: wire the right sockets. The validator explains every mistake, from the forgotten fuse to the preamplifier on the transmit side.

5 stationsno drag and drop9 badges

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Tune your antenna

A coil, a capacitor, an L network: bring the SWR to 1 watching the Smith chart, or recognise the antenna no tuner can match.

5 levelsSmith chart9 badges

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Fox hunt

A beacon hidden in a park: turn the Yagi, take bearings, walk, triangulate. Beware of the cliffs' echoes, and of three foxes keying in turn.

5 levelsARDF8 badges

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More games will come here.

Every badge

  • First locatorFind your first locator.
  • First stepsFinish a Beginner game.
  • On a rollThree locators found in a row.
  • Five in a rowFive locators found in a row.
  • FlawlessA ten-round game, every one found.
  • LightningFind a locator in under 10 seconds.
  • ThunderboltFind a 4-character locator in under 5 seconds.
  • BullseyeClick within 10 km of the locator's centre.
  • Seasoned6,000 points or more in a Seasoned game.
  • No safety netFinish an Expert game without any hint.
  • Eagle eyeFind a 6-character locator.
  • High score9,000 points or more in a ten-round game.
  • Round the worldFind a locator on each of the six continents.
  • QO-100 explorerFind 10 locators in QO-100's footprint.
  • Neighbourhood7,000 points or more in a game around JN18FS.
  • Tour de FranceFind 20 locators in France.
  • Against the clockFind 10 locators in a timed game.
  • AntipodesFind a locator more than 15,000 km from JN18FS.
  • Night owlFind a locator that is in the night right now.
  • CenturionFind 100 locators in all.
  • RegularPlay ten games.
  • StudiousRead “Learn” to the end.
  • First DXA first right answer.
  • Combo ×3Reach the ×3 multiplier.
  • Ten in a rowTen right answers in a row.
  • Flawless DXFifteen right answers out of fifteen.
  • ReflexA right answer in under 2 seconds.
  • Pile-up20 right answers in a timed game.
  • Unbreakable25 right answers in a three-lives game.
  • Six continentsA right answer on each of the six continents.
  • DX expert12 right answers or more in a Hard game.
  • Collector50 different entities recognised.
  • Both waysFinish a game in each direction.
  • At the keyboardTen right typed answers.
  • Copied on the fly10 right typed answers in a Hard game.
  • Budding WAZRight answers in 10 different CQ zones.
  • QRVA first right answer.
  • Full QSKA right answer in under 1.5 seconds.
  • Combo ×4Reach the ×4 multiplier.
  • No QRMFifteen right answers out of fifteen.
  • QRQ20 right answers in a timed game.
  • Never QRT25 right answers in a three-lives game.
  • On the key20 right typed answers.
  • Exact forms12 right answers or more in an Expert game.
  • Full code bookFind every code of the game at least once.
  • Alfa!A first right answer.
  • Solid copyTen right answers in a row.
  • Perfect copyFifteen right answers out of fifteen.
  • Sharp ear15 right answers when listening.
  • Through the QSB10 right answers when listening, with QSB.
  • Touch typist20 right typed answers.
  • Phonetic pile-up15 right answers in a timed game.
  • Alfa to ZuluAll 26 letters met in right answers.
  • StrokeA composite callsign rightly spelled or read.
  • Tuned inA first right answer.
  • Combo ×4Reach the ×4 multiplier.
  • Every HF bandA right answer on each of the ten HF bands.
  • Above 30 MHzA right answer on 6 m, 2 m, 70 cm and 23 cm.
  • QO-100A right answer on a QO-100 frequency.
  • FT8 hunterRecognise FT8's frequency on five bands.
  • Band planner12 right answers or more in a “The segment” game.
  • Spot on12 right answers or more in a “The exact use” game.
  • Fast VFO20 right answers in a timed game.
  • Perfect tuningFifteen right answers out of fifteen.
  • Good earA first right answer.
  • First beepA right answer in under 2 seconds.
  • Combo ×4Reach the ×4 multiplier.
  • Perfect pitchTen right answers in a row.
  • Through the hiss10 right answers with noise on.
  • Heard them allRecognise each of the game's modes at least once.
  • Clean copyFifteen right answers out of fifteen.
  • Express sweep15 right answers in a timed game.
  • Human decoder12 right answers or more in a Hard game.
  • First contactCatch a first AOS.
  • Right on timeA PERFECT tap (within 0.12 s).
  • DoublePerfect AOS and LOS on the same pass.
  • Combo ×4Reach the ×4 multiplier.
  • OverheadAOS and LOS well caught on a pass above 60°.
  • Blindfolded7 good taps or more in a No circle game.
  • Pick of the bunchA Crowd game without a single missed tap.
  • MetronomeTen taps out of ten within 0.5 s.
  • High score15,000 points or more in a game.
  • Pass regularPlay ten games.
  • First tuneFinish a Doppler game.
  • Golden earHalf of a VHF pass within ±50 Hz.
  • UHF masterHalf of a UHF pass within ±50 Hz.
  • At TCAStay within ±50 Hz the whole minute of closest approach (VHF or UHF).
  • Locked on20 seconds in a row within ±50 Hz.
  • Clean FM90% of a SO-50 FM pass in the window.
  • Zen90% of the time within ±50 Hz on QO-100.
  • High score8,000 points or more in a game.
  • Knob regularPlay ten games.
  • First aimAim at a satellite within 15°.
  • Dead centreAim within 3°.
  • Well-oiled rotorFive aims in a row within 10°.
  • Looking upA satellite above 70° elevation, aimed within 5°.
  • Skimming the horizonA satellite below 10° elevation, aimed within 5°.
  • Geographer6,000 points or more in an On the map game.
  • TrackerA tracking game with an average error under 10°.
  • Perfect pursuitA tracking game with an average error under 5°.
  • High score12,000 points or more aiming.
  • Rotor regularPlay ten games.
  • First contactA first right answer.
  • Quick earA right answer in under 2 seconds.
  • Combo ×4Reach the ×4 multiplier.
  • Heard them allRecognise each of the game's satellites from its frequencies.
  • U/V, V/UTen right answers on the mode letters.
  • InverterFive right answers on the inverting transponder.
  • Copied solidFifteen right answers out of fifteen.
  • Lightning pass20 right answers in a timed game.
  • Until LOS25 right answers in a three-lives game.
  • Satellite operator12 right answers or more in an Expert game.
  • In orbitA first right answer.
  • Combo ×4Reach the ×4 multiplier.
  • Kepler's disciple25 duels won in all.
  • AltimeterA height guessed within 3%.
  • Speed gunA speed guessed within 0.02 km/s.
  • Orbital clockA period guessed within a minute.
  • Air traffic controllerRank four satellites or more without a fault.
  • Perfect orbitFifteen right answers out of fifteen.
  • Express revolution20 right answers in a timed game.
  • Celestial mechanic12 right answers or more in a By eye game.
  • First satelliteA first time into orbit.
  • The ISS's neighbourAn orbit within 20 km of the ISS's (420 km).
  • Spot onA PERFECT try.
  • ThriftyIn orbit with 15% of the Δv still in the tanks.
  • Sun-synchronousA GOOD try or better in sun-synchronous orbit.
  • GeostationaryAn orbit within 1,000 km of 35,786 km.
  • Mr HohmannA PERFECT try in geostationary orbit: QO-100 says hello.
  • Bon voyage!Too fast: escape the Earth.
  • Three out of threeThree GOOD tries or better in a game.
  • First footprintA first footprint painted.
  • Right in the circleAn overlap of 85% or more.
  • Combo ×4Reach the ×4 multiplier.
  • Under the ISSGREAT or better on the ISS's footprint.
  • A third of the EarthGREAT or better on QO-100's footprint.
  • Above the roofsFour GREAT rounds or better in an above-10° game.
  • Who can talk?Eight right answers out of eight in « Who can talk? ».
  • Cartographer5,000 points in a game.
  • Sky regularTen games.
  • File openedA first right answer.
  • Combo ×4Reach the ×4 multiplier.
  • PioneerTen duels won: which went up first.
  • VintageType a launch's exact year.
  • Cube stackerTen right answers on the size.
  • SSTV or SSDVTen right answers on the pictures.
  • CollectorA right answer on twenty different satellites.
  • Files completeFifteen right answers out of fifteen.
  • Countdown20 right answers in a timed game.
  • Long mission25 right answers in a three-lives game.
  • First cubePass a CubeSat's build and tests.
  • FeatherweightA 1U under 0.8 kg with two payloads.
  • Through the shadowFinish « Power » without ever going into survival.
  • PhotographerDownload 6 pictures in « Operations ».
  • Hear me10 beacon reception reports in a game.
  • By the bookTransmit nothing before 45 minutes after ejection.
  • RescueSolve every failure of « Anomalies ».
  • To the very endRun a whole mission down to re-entry.
  • Fifteen starsThree stars in all five missions.
  • Full albumEvery card of the album.
  • All-rounderFinish a game of each game.
  • First QSLReceive your first QSL card.
  • Rare cardReceive a rare card.
  • Epic cardReceive an epic card.
  • SwapTrade doubles for a card.
  • DXCC 2525 entities in the album.
  • DXCC 5050 entities in the album.
  • DXCC 100100 entities in the album: the DXCC award.
  • WACThe WAC award: an entity on each of the six continents.
  • WAZThe WAZ award: all 40 CQ zones.
  • Grid hunter25 locators in the album.
  • First copyCopy what the site keys without a fault.
  • 20 WPMA set of ten without a fault, at 20 WPM or more.
  • 25 WPMA set of ten without a fault, at 25 WPM or more.
  • 30 WPMA set of ten without a fault, at 30 WPM or more.
  • Callsign on the flyCopy a whole callsign at 35 WPM or more.
  • Full speedA perfect copy at 40 WPM.
  • Golden ear25 perfect copies in a row.
  • Through the noiseA set of ten without a fault with noise and QSB.
  • Ten lettersLearn ten letters by the Koch method.
  • The whole alphabetLearn all 40 signs by the Koch method.
  • First QSOA first QSO in the pile-up.
  • Ten in the log10 valid QSOs in a game.
  • QSO machine6 QSOs a minute or more over a game.
  • Clean log10 QSOs or more, no wrong callsign, no dupe.
  • Question mark5 QSOs after a partial call, in a game.
  • Chaos tamer15 valid QSOs in a Chaos (split) game.
  • Six continents loggedQSOs with all six continents in a game.
  • A rare one loggedA QSO with a rare entity.
  • A hundred QSOs100 valid QSOs in all.
  • QSO savedFinish a QSO with at least 50% quality.
  • Anti-QRMThree best reactions to interference (QRM, pile-up, RF feedback).
  • Safety firstThe best reaction to the storm and to emergency traffic.
  • By the rulesThe best reaction to “QRL?”, out of band and identification.
  • Reliable station5 QSOs at 90% quality or more in a game.
  • Zero mistakesA whole game with always the best reaction.
  • Cool head3,500 points or more in an Emergency game.
  • Regular operatorPlay ten games.
  • VHF stationBuild the VHF FM station.
  • HF stationBuild the HF station.
  • Full duplexBuild the satellite station.
  • In the fieldBuild the portable station.
  • Advanced stationBuild the station with an amplifier.
  • CATLink a radio to the PC by CAT, in a station that works.
  • Perfect wiringGet a station right at the first test, no cable refused.
  • Every stationGet all five stations right.
  • SWR 1.5Tune an antenna to an SWR of 1.5 or less.
  • SWR 1.2Tune an antenna to an SWR of 1.2 or less.
  • Perfect matchAn SWR of 1.05 or less.
  • Clear-sightedRecognise a match that cannot be made.
  • Not a wrong noteEvery antenna of a game tuned (SWR 1.2, or a match that cannot be made recognised).
  • All bandsThe “One antenna, five bands” level without a mistake.
  • No help4,000 points or more at the No help level.
  • Regular tunerPlay ten games.
  • First foxPlace a fox within 100 m.
  • ThriftyA fox within 100 m with only two bearings.
  • TriangulationWithin 50 m with three bearings at most, at the Triangulation level.
  • No clue neededEvery fox of a game within 100 m, with no sweep and no clue.
  • Not fooledWithin 80 m at the Echoes level.
  • ARDF masterAll three foxes within 100 m.
  • Woodland runnerPlay ten games.
  • First frameA first right diagnosis.
  • At a glanceA right diagnosis in under 10 seconds.
  • Don't panicRecognise 5 false alarms.
  • Battery doctorFind the three battery faults: gauge, cold charging, overheating.
  • FlawlessSix right diagnoses out of six.
  • Thermal engineer4,500 points or more at the Thermal level.
  • Telemetry expertSix out of six at the Diagnosis level.
  • Always listeningPlay ten games.

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