Morse Decoder can be used by Ham Radio (Amateur Radio) operators or anyone else interested in decoding Morse code from a Radio or any other device.
Morse Decoder includes a "waterfall" to show a frequency spectrum of about 50Hz to 2300Hz. A narrow band DSP filter can be set for the frequency of the Morse code tones by tapping the waterfall. The DSP filter is followed by an automatic gain control (AGC) to compensate for changing signal strengths.
The detected signal will be shown as a graph and several algorithms will then detect the speed of the Morse code and convert them into readable text. Speeds of less than 4 Wpm (Words per Minute) to more than 50 Wpm can be decoded.
For any question please visit our new forum at http://www.wolphi.com/forum/
This is the first version of Morse Decoder.
It has been tested on several Android devices and it performed very well or even better than PC based decoding software. However, since we are not able to test the performance on all 150+ Android devices there is the possibility that Morse Decoder will not work on all devices. If Morse Decoder doesn’t work on your device you can uninstall Morse Decoder within 15 Minutes for a full refund (This is the time frame given by Google and I am not able to change it). If the 15 minutes passed and you are not happy with Morse Decoder email me as soon as possible at email@example.com. Please include your name and the model of your phone in the email. I will then refund you the money as fast as possible. It is important that you include the model of your device. I will try to find the cause for the malfunction or include your phone model in a list of “not working” devices.
The application is somewhat picky about the listening conditions, so if it doesn't work, try adjusting the volume or repositioning the phone in relation to the speaker.
If you can't get it to work, send me an email with a link to a recording of the transmission and I will see if I can improve the application.
Any other feedback welcome.
- Learning : discover the morse code characters for each number or letter of the alphabet
- Answer a quiz : listen to the audio signal and select the corresponding morse character out of the choices from a list
You can also enter the text you want to translate and send the equivalent Morse signal immediatly.
In case of emergency a SOS signal is pre-recorded and can be transmitted instantly in various formats (audio, flash, screenlight, vibrations)
If you are a ham radio (amateur radio) operator or just want to learn morse code.
With a lot of settings it is very comfortable to adjust Morse Trainer to your current level.
The following settings are available:
- Frequency (200 - 2200Hz)
- Waveform (sine / triangle)
- Fading (to reduce click at the end of a dot or dash)
- Speed (2Wpm - 52Wpm)
- Farnsworth speed
- Spacing (spacing between dots or dashes)
- Dot-Dash Ratio (length ratio of dashes compared to dots)
- Letter Spacing (Space between letters)
- Word Spacing (Space between words)
Five different learning modes are available in Morse Trainer
- Random groups of X mode: Morse Trainer will play groups of X randomly selected letter, numbers or special characters. X can be an amount between 1-9. Those characters can be individually selected. If you want to learn just "s","i" and "e" just select the 3 letters and Morse Trainer will create groups of X with those 3 letters.
The characters can also be chosen from 20 lessons of the Koch method.
- Real ham radio callsign mode: Morse Trainer will randomly play real amateur radio callsign from a database of 5000 callsigns which appeared in Contests over the last couple of years.
- QSO text mode: Morse Trainer will play randomly play QSO text. The database consists of 300 different qso texts.
- Most common English words mode: Morse Trainer will play randomly the 500 most used English words.
- Own text mode: Enter your own text and Morse Trainer will play it over and over again.
- Ebook mode: Text files can be loaded from SD card
Morse Trainer is priced less than the cost of a fancy coffee and it is a great app to learn and improve you CW speed away from your amateur radio station or your PC.
It starts with two letters and adds more when it sees that you are ready. This is the easiest way to learn code because the computer thinks about the practice you need next instead of wasting your time with stuff you already know or confusing you with stuff that you don’t.
You'll find yourself learning CW with fun as if it is a game.
The original idea comes from Ward Cunningham K9OX (http://c2.com/morse/) and first described in an article in the May 1977 issue of QST magazine.
The app by default uses the LCWO letter sequence (derived from Koch one) and starts with the first two letters: K and M.
For Each letter you have a column showing how high is your error score. It starts from 100 and lowers as you start guessing letters right and increases when you are wrong or you take too much time to recognize it.
But you'll have 5 different letter layout to choose from.
WPM (Words Per Minute): let you set the speed of the CW playing. The suggested speed is 20. The minimum is 15. You should choose a speed that does help you focus on the sound of each letter and not on the dits and dahs.
CW TONE: choose a tone frequency that suits your ears. Default is 700Hz
LESSON: sets the lesson level. By default you start with lesson 1 (2 letters) and as you get confident with them new ones are addedd.
MINIMUM ERROR LEVEL: sets the minimum average error level before adding a new letter.
TIMEOUT: sets the number of seconds to wait before the app gives you a hint of the letter.
TIME LIMITED SESSION: by default the session stops when you decide to stop. But you can set it to automatically stop after 5/10/15/20/25/30 minutes.
RESET SETTINGS: resets the error level of each letter back to 100%.
LETTERS SEQUENCE: let's you select the letter sequence from a choice of 5 different ones:
LCWO (the default one):
K M U R E S N A P T L W I . J Z = F O Y , V G 5 / Q 9 2 H 3 8 B ? 4 7 C 1 D 6 0 X
KOCH (the most famous and used one):
K M R S U A P T L O W I . N J E = F 0 Y , V G 5 / Q 9 Z H 3 8 B ? 4 2 7 C 1 D 6 X
ORIGINAL MM (the original sequence from the 1977 article):
Q 7 Z G 0 9 8 O 1 J P W . L R A M 6 B / X D = Y C K N 2 3 ? F U 4 5 V H S I T E
ETANIM (one of the classical sequences):
E T A N I M D S O U R C K P B G W L Q H F Y Z V X J 1 2 3 4 5 6 7 8 9 0 . / = ?
OSCAR I7OHP (a great CW trainer here in Italy):
A U V E I S 1 2 H T M O 3 N D B 4 G Z 5 R L F 6 Q W 7 J K 8 C Y 9 X P 0 . / = ?
Choose the one that suits better your training needs or switch from one to the other.
At the end of each session, the app will give you a score. It'll also record your best score so that you can compete with yourself and see how much your performances are improving.
Learn CW the fun way!
For any suggestion or request of support email to firstname.lastname@example.org or go to http://alphapapacharlie.com
72/73, Andrea IU4APC
EchoLink for Android provides access to the EchoLink network from your Android device. You can use this app to connect to the EchoLink system from almost anywhere, using either a WiFi or cellular (3G/4G) connection.
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
A waterfall shows the frequency spectrum of 100Hz to 2500Hz. Just slide the waterfall slide on a RTTY carrier frequency and DroidRTTY will decode the signal.
In transmitting mode characters can be entered trough the keyboard. 9 Macros are also available to store standard texts like “name and qth” and “station info”
DroidRTTY also now includes a logbook. Callsign, Name RST etc can be easily tranfered into the lookbook from the receiving screen.
The logbook also includes ADIF export and import to transfer your logbook data to a PC based logging software.
Version 1.10 also includes 50 baud / 450Hz shift to receive the German Weather Service (Deutscher Wetterdienst)
NOTE: This app has ADIF Export AND Import and QRZ XML Lookup integration. As well as CloudSynch to synchronize logs across devices and platforms (Android/iOS)
HamLog is an amateur radio logging application with many useful tools built-in. It is meant for use when operating portable from the field or mobile (drive safe!). It supports name and QTH lookup via the Cell network or WLAN. It supports both Import and Export of logs in ADIF format and has integration with the QRZ XML Lookup service.
QRZ XML Subscriber Integration
Gridsquare from GPS
Grid Calc from lat/long
Grid to Map
US Band Plan
HF Nets List
Ring the Phone
HamLog CloudSynch (see http://hamlog.it for more info)
Rapid Fire mode for quickly adding contacts in a pile-up.
Field Day Logger with suport for HamLog Field Day Server
With 54 buttons and 5 switches completely customizable, you’ll be able to create the perfect keypad for you ham radio operations with the Elecraft KX3.
Each button has its label, command and color.
Each switch has two labels (on/off), two commands (on/off) and a color.
Commands have no length limit and use the Elecraft K3/KX3 programming language. The complete reference manual is referenced from inside the app for handy reference.
The app comes with two pre-defined templates: one for default operations and one for CW users.
But you can create new ones, customize the ones already available, save them and recall in a matter of seconds for infinite different setups.
You’ll also be able to share/backup/restore your templates via email, dropbox or whatever is in you device share tab.
The app works both on Android tablets and smartphones. A high resolution tablet is preferred for the high number of buttons available.
To connect to the Elecraft KX3, you’ll need an OTG USB cable adapter that will allow you to use the USB Serial cable that comes with your radio.
Or you can connect wirelessly by using a Piglet or even remotely.
Seamless integration with the KX3 Companion. Switch between the two apps without loosing connection to the KX3.
For a quick tutorial on the Elecraft KX3 programming language, refer to that page:
For anything you can contact me at email@example.com or link to our new forum:
72/73, Andrea IU4APC
With this App you can create the coverage map for HPF, MUF and FOT based on the location QTH of your radio station TX defined by latitude and longitude and minimum radiation angle.
Coverage maps are produced by calculating a huge amount of point-to-point circuits from the transmitter to a world wide receiver grid of 88 x 64, This are 5632 point-to-point calculations of the HF path for 24 hour of the day. A SAMSUNG Galaxy II will need less than 1 minute to compute the maps, valid for the selected month.
The used algorithm are based on the HFMUFES FORTRAN library as used by HFMUFESW, IONCAP or VOACAP but ported to JAVA classes. The last computation is retained and a new computation will be done at changed entry values only. Ionospheric data are inside the JAVA classes for all months and sun spot number 10, 30, 60, 90, 120 and 150
During map view you can switch between HPF, MUF, FOT and each hour of the day (UTC). The display will be on as long the map view is shown. There are a bunch of different color palettes that can be selected. The current selection is retained at App exit, so you must go back to the main menu to have the map saved. Later when you touch draw the map button again the the last version is shown. To compute again, modify an entry value, month or ssn.
Gray-line (dawn zone) and the position of the sun is adjusted for each hour.
At each touch in the right area the day time (UTC) is increased, in the left screen area UTC is decreased.
Watch the touch area functions displayed during the computation.
At the Highest Possible Frequency HPF, communication can be supported on 10% of the days (3 days) in the month. At the Frequency of Optimum Traffic FOT, 90% of the days (27 days) in the month and at the Median Maximum Usable Frequency MUF, 50% of the days (15 days) in the month.
This simple app takes your text inputs and plays out Morse Code. This app also allows you to modify the tones by using RTTTL output.
A "listen" feature also starts up a separate (free) application to listen and decode Morse messages heard through the microphone. The free app by Jacek Fedorynski works well so we linked to it from this app's "listen" button.
You can tell the app to include your Ham Radio callsign (CW) in the text message it plays out.
This app also has a "Manual" option, to let you practice keying Morse Code - it displays all the codes and creates audio while you tap at the screen.