• IZ2UUF Morse Koch CW 1
  • IZ2UUF Morse Koch CW 2
  • IZ2UUF Morse Koch CW 3
  • IZ2UUF Morse Koch CW 4

IZ2UUF Morse Koch CW

The user starts by recognizing only two letters, M and K, at high speed (at least 20WPM) on a 5 minutes session.When she or he will be able to write down on paper at least 90% of the sequence, she or he will add another letter of the Koch sequence. Then the application will run with three letters and so on.I love using this application on my smartphone because I can exercise at any time and anywhere.
NOTE ON GARBLED AUDIO
- Garbled audio has been fixed: starting from Android 4.1, 8-bit audio support has been broken; 16-bit audio still works.

73 de IZ2UUF

Category : Communication

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Reviews (25)

Har. O. Dec 2, 2021     

Absolutely Excellent App. Tried all the usual suspects including the well known PC based programs and ended up with this - the free version is great - I learnt half of the code this way. I then paid for the full version which allows you to save many more 'setups' allowing for even more varied practice. Even though I am now OK with the code, I still use this several times a week to keep myself both up to speed and to further improve. I can't recommend it highly enough. Thank you.

Bob. B. May 18, 2021     

Love this Morse code training app. It runs great on my Samsung tablet. I especially like the option to change the text size. I usually make them large so the character image is burned into my mind. One suggestion, add an option to display only one large character at a time during the sound. This is to associate the character with the sound. When I say large, I mean the character should be about half the size of the entire screen. Other than that, I would say this app is perfect just as it is.

Tan. -. N. Mar 4, 2019     

I tried a lot of morse code apps. The best feature about this one is you can set it to speak the letters to you after playing the code. You don't have to watch the screen to see if you are correct. It is hands free. This has helped me hear the sound of the letter and not the individual dits and dahs. Options for speed, character spacing and word spacing. Letters, callsigns, qso's and custom text.

Jes. &. P. Aug 16, 2021     

This is my best and preferred app! I switched back to android from iphone just to get it on my phone. Simply love it! Daily practice is the key. I run it at 50 wpm using koch and farnsworth. Only 3 characters per group! My target is to comfortably run between 35 and 45... I learned the wrong way over 40 years ago but with this app, i am relearning the right way: learn FAST right from the start if you want to avoid all the pitfalls that only learning using the correct method can provide.

Lin. R. May 9, 2020     

I am Very confused as to how this is supposed to work. it's just playing some letters at me while putting them on screen? do I need to have my own pad of paper next to me? I should ideally be able to type in a text box in the app As it's playing? do I need to set up my own notes app in split screen or something? I see the "compare result" option show up after I hit stop, but there's hardly any explanation anywhere

ANO. A. Apr 9, 2022     

Any chance you could add a feature where sending of morse is also part of this software? If analysis of dits and dahs are also present, it would be helpful in optimizing the timing of morse sending.

Ang. P. May 5, 2020     

Way too expensive! $15 bucks for another Koch app? Is not new technology, is something someone designed many years ago and this app adds some tweaks which I'm willing to pay for it but $15 is way too much, the average price of the others are around $5. Drop the price to 4.99 and more people will pull the trigger. The app have potential but these days not too many people agree to toss $15 when there are many similar in less than half.

S. S. Aug 19, 2019     

Thank you for this wonderful app. Excellent app, highly recommended, very configurable up to the taste. One Quick question how would I enable spoken letters to be played first (speech) before its cw code is played, and with configurable pause between them. or is it an additional feature request?

Dav. Aug 21, 2020     

Great app, but a few features need work The app has taken me to knowing all 40+ symbols, but now, trying to increase my speed, I am unable to get any difference in word spacing to make those gaps longer. So while it got me this far, I may need to switch to something else to get me faster. Please fix the word spacing!

How. R. Jun 6, 2019     

Why did they change what was previously a very useful program? The new version is heavily Koch oriented and difficult to navigate. There is an offer for an old version with warning that it will harm my platform. Sorry I uninstalled the original version.

A. G. u. Oct 23, 2018     

Great app for learning cw the best and fastest way .....Koch method ! Easy to use and set up for personal preferences . This enables a good rate of progress in learning the characters. The author has done an excellent job...I love it !

And. L. M. May 18, 2020     

An excellent app. created obviously by someone who knows the practical side of morse communication. Very similar to military training. No fancy stuff here, just the real world. This is the future in case of real struggle, when satellites uplink, net, cell towers will be jammed and useless. Hat off to developer, keep good work. Andrew

Geo. R. Nov 10, 2019     

Wish you could copy and paste txt in the pro version of the user defined files and save it. Hard to navigate the menu This was the reason I payed for the pro version was so I could add my own files. Any help into this is much appreciated

Cec. C. Sep 26, 2021     

Excellent. Worth the price. Don't waste your time searching for an android app to actually learn CW, just get this one. Free version has good features, but pro unlocks more.

Saa. M. Aug 1, 2019     

I have used most of the apps having keyword 'Morse Code' and this one Definitely cuts the mark for Best Morse trainer out there. Honestly if you are like me ie really new to morse this may be a bit intimidating at first but if you are serious about it and its not just a temp thing and want to learn it for long run this is for you. Although developer could have been creative with name because I couldn't really figure out what the app was about

Dip. H. Feb 8, 2019     

With the latest update the sidetone has improved dramatically. No reason to hold back on any stars now. Just have to figure out how to get "Pro". Cheers Dev.

A. G. u. Feb 11, 2019     

NEW VERSION IS COMPLETE JUNK. Previous version was awesome. New update wont randomize custom letter string and just keeps repeating the same sequence. Also new version wants permission to make calls?

Tim. H. Mar 13, 2019     

I really like this app. I would have bought pro but it is not available through the play store. I will continue to use the free version and check for other training qpps in the play store.

G. E. Dec 12, 2018     

I'm pretty new at learning code. Up to now I've used Morse Machine but this app has much more flexibility. I love the word spacing feature. From now on this will be my "Go To" code app.

Jin. J. Dec 8, 2020     

Is there an option to change the interface color from bright red to something gentle for eyes? Otherwise it's a good app.

Car. M. Oct 15, 2018     

By FAR the best Morse Code trainer I could find...even amongst ones to pay for. Idk how it could be any better. HIGHLY recommend if you're wanting to learn Morse Code or raise your WPM.

Cra. Feb 9, 2019     

Very good. lmproving old skills & speed again, makes it easy to practice any time.

Jef. M. Oct 8, 2021     

Random mode follows Koch order. Would be more useful if word mode sent words containing only those letters being studied.

Joh. F. Jun 18, 2019     

Don't usually reviews, but this app is great. The latest update makes it even better. Good for any level cw learner. Keep up the great work.

Way. C. Nov 25, 2018     

It just plays the Morse code for letters. Doesn't have the student try to identify the code or type it.. Nothing. Waste of time.