IZ2UUF Morse Koch CW

Installs

125k

Rating

3.2

Rating count

< 1k

Category	Communication
Developer	D.A. FOCUS
Price	Free
First release	6/21/2012 (13 years ago)
Version	2.0.36538
In-app purchases	No
Contains ads	No
Content rating	Rated for 3+
Package name	net.iz2uuf.cwkoch

View on Play Store

Core Metrics

Data Breakdown

Date	Rating Count	Average Rating	Installs	Version
6/15/2025	960	3.200	124,993	2.0.36538
6/14/2025	960	3.200	124,974	2.0.36538
6/13/2025	960	3.200	124,957	2.0.36538
6/9/2025	960	3.200	124,945	2.0.36538
6/8/2025	960	3.200	124,897	2.0.36538
5/29/2025	960	3.200	124,876	N/A
5/28/2025	960	3.846	124,720	N/A
5/27/2025	959	3.846	124,708	N/A
5/24/2025	959	3.846	124,659	N/A
5/22/2025	958	3.846	124,628	N/A
4/28/2025	954	4.300	124,130	N/A
4/24/2025	954	3.846	124,109	N/A
4/22/2025	954	4.725	123,910	N/A
4/10/2025	953	4.794	123,791	N/A
4/6/2025	952	4.797	123,755	N/A

Details

- learn morse code reception on the go (train, commuting, car, walking, etc)
- supports Koch method with G4FON, LCWO or custom character sets
- supports the Farnsworth spacing (high speed characters with longer space between them)
- the hard-letters settings allow increasing the frequency of the letters harder for the user to recognize
- the auto hard-letters feature automatically increases the frequency of the letters last added to the Koch exercise
- high precision timing of dots. dashes and space
- all timings (dot/dash ratio, spacing, etc.) can be user set
- optionally different sidetone frequency for dots and dashes
- works also with the phone screen off, so execises can be done with the device in the pocket
- when an incoming call is received, the exercise is automatically paused
- a voice can can read each word after the CW transmission, to allow mentally check the reception without even looking at the screen
- international Text-to-speech can read the text after having been sent in CW
- long (alpha, bravo, etc.) or short (A, B, C, ...) voice samples are available
- a QSO generator generates random "standard" QSO using a database of 1116 first names and 544 cities related to the 31 most popular countries, with 560 real rig names, antenna types, WX and so on
- can read text from a file or copied and pasted from any source
- can transmit words or sentences randomly taken from a file (for example a list of proverbs or aphorisms)
- callsign generator with optional prefix and suffix generation
- exercise verification can be done by reading the screen, by typing the answers or by listening to a voice that dictates it
- over 100 international characters supported, including cyrillic
- full support of prosigns
- exercises can be configured and saved for fast retrieval

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