Improve your Morse copying speed. No need to write everything down, you just have to find the most relevant info, be it the RST, the other operator's name, his QTH... There's also a customizable Full QSO simulator below. Full instructions available. Add Seiuchy to your phone or tablet and use it as an offline app!

Settings: Frequency: Hz Speed: wpm Volume: % Automatic speed adjustments Your name: Test Stop Real place names only | Simulated key: Computer Paddle expert Paddle Paddle novice Straight key expert Straight key Straight key novice Straight key horror * Bug expert Bug Bug novice Bug nightmare * Precious snowflake Cootie - Test Elmer - Test * Farnsworth 1 * Farnsworth 2, straight key * Random key * Categories: Name Rig Call Age RST QTH

Job Club Nr Contest Serial number Grid (4 chars) VHF (serial + grid (6 chars)) Field day Full locator (6 chars)

Your grid Local only Uncheck all / Check all / Reset score

This is what I'd log Start Again Score:

Sorry, this CW simulator requires Javascript and it seems you either don't have it or have turned it off.

Past QSOs Log

Full QSO Simulator

Full QSO Show the text Repeat Stop

Notes

Seiuchy is free of charge, doesn't use cookies or track you, doesn't require you to be always online: once the page is loaded, you should be able to use it as long as you wish even without an internet connection. No ads.

Seiuchy comes with no warranty implied.

Feel free to send me your comments, bug reports and feature requests to the following address: hb9fxw at uska dot ch. English isn't my mothertongue, so language/grammar corrections are welcome too.

Good luck, and have fun. Here, elsewhere or on the air. Long live CW!

Instructions

Learn to ignore the padding and focus on what matters, what you should log. Headcopy isn't that hard, it's easy. Repetition of filler words will train you to recognize them on the air and ignore them too, allowing you to understand QSOs on the spot instead of having to write them before being able to understand them.

Choose your favourite sidetone pitch (in Hertz, from 200 to 1200), speed in wpm (from 5 to 50), input your name or keep the default "OM", uncheck some categories if you're not yet proficient in Morse. Press "Start" to start, or the "enter" key if your cursor is in the answer field.

Only enter the most relevant info. Don't write "43 years old", only "43". Only enter the information once, even when it's given twice. The most complex answers are in the "rig" category: there you have to enter it as it is sent ("tentec century 21", for example).

For the "contest" category, don't enter cut numbers; enter them as you would log them in a real contest log: a serial number received as "T4N" should be loged as "049".

Press "enter" to validate your answer. You will hear a "C" if your answer is correct, and a "?" if it isn't. Your answer will be logged in red if it was wrong, in green if it was good. The whole exchange will also be logged, in the "Past QSOs" column.

You can ask for a repeat (or many repeats), but then your score won't increase if you answer correctly.

For some contests you can enter your grid square and the program will give you QSOs at realistic(-ish) distances. Check the "local only" if you want to train the grids around you and avoid DX. The VHF contest has a shorter range than the other ones.

This software should work with recent browsers which support the Web Audio API. It has mainly been tested with Firefox, but should work with many other browsers (Internet Explorer doesn't respect standards, so I wouldn't be surprised there's no way to make it work for a while).

The "Full QSO" button below simulates a whole non-interactive QSO between two hams. It can get a bit silly, so don't fret if you hear HB4XXX Li-Chang the former clown in Stockholm, Brazil where it snows... Just follow along, there's nothing to type (and so the input field is disabled).

You can now choose the key and keying expertise level of the simulation. There are paddles, straight keys, bugs... The settings with an asterisk won't be used if you select "random". "Computer" is perfect sending, without any personality. Paddles give perfect element and inter-element ratios but the spaces between letters and words may vary. Straight keys may sound pretty random but I've heard and worked OMs even worse than "Straight key horror". "Precious snowflake" is computer sending, but with bad ratios set in the hope of standing out with an unusual swing. "Elmer" provides slightly longer spaces between characters, and much longer spaces between words but otherwise use perfect sending; it's aimed at beginners still hoping for a bit of help from Mr Farnsworth. Bugs and paddles can sometimes give you too many dots, especially in inexperienced (or drunk or sick) hands. Fortunately for you, Seiuchy won't transform U into V or B into 6; the bad news is that it will occasionally add a dot to a number or punctuation sign or prosign. With bad keying, words per minute will sometimes deviate from their rigid meaning. 20wpm with an untamed bug will feel more like 35 at times.

If you check "automatic speed adjustments", Seiuchy will adapt its speed with your answers: if you answer correctly, it will increase by 1 word per minute. If on the other hand you give a wrong answer, it will decrease your speed by 1 wpm. If you asked for a repeat, it won't increase the speed even though you got it right, but it will decrease it in case it wasn't sufficient for you to give the correct answer.

Back to Seiuchy CW trainer

Phone/tablet App

If you want to train your morse skills on the go, without a need for an internet connection, you have to install Seiuchy as a web application.

All the necessary data is copied once to your device and everytime you launch Seiuchy while online, the page/app is updated to the latest version.

The exact procedure depends on your operating system and language but usually it's a menu option in your browser that says something like "add this to your home screen". On my iPad, with Safari, it's in the sharing menu accessed through the "square with an arrow" icon. On my android phone, with Chrome, it's in the bottom of the list you see when you press the "three vertical dots" menu at the top of the screen.

If my explanations aren't enough, maybe this site explains it better.

Planned features

I can't promise everything that follows will be implemented (some of them are nothing more than wishful thinking, let's be honest) but I'll try anyway.

Better font size handling on small devices

Pausable qsos

Better geography. QTH according to callsigns. You will probably still meet Olaf in Spain and Ramon in Sweden, though, because I like it that way

Better customization

Visual morse (train visually, with a simulated signal/Aldis lamp)

Morse decoder allowing real key integration and fully interactive qso with an AI

Nice splash screen for phone "app"

News

09 Jul 2020, better grid support

04 Mar 2020, full locator option

03 Jul 2018, contest category, toggle settings window

01 Jul 2018, automatic speed adjustments, Farnsworth keys

25 Jun 2017, repeat option (doesn't increase score)

19 May 2017, Better geography. Some countries aren't fully implemented yet

17 May 2017, Realistic keying methods (SK, paddles, bug, cootie...) and various fixes

16 May 2017, Phone App Seiuchy now works offline too as an app if you "add this site to home screen" or something like that. Apple iOS and Android supported. Various improvements, mainly to "full qso" simulator.

14 May 2017, freq offset and BK in full qso, reset score link, fixes

27 Jan 2017, new categories, show full QSO text option

16 Jan 2017, better meteo model and answers

15 Jan 2017, optional constructed place names

14 Jan 2017, added full QSO mode, checks are less strict.

08 Jan 2017, improved design and code.

06 Jan 2017, improved compatibility, more names/places/rigs.

17 Jun 2016, various bugfixes, more variations in QSOs.

15 Jun 2016, first version of Seiuchy. It still needs some improvements, but it works on my computer, phone and tablet at least.

Other CW training resources