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
Learn or improve your morse code in a short amount of time. The Koch method is designed to teach you morse at full speed. There's no need to learn at slow speeds then re-learn all the characters again once you increase your wpm.
If you wish to start off slow or simply want to pass your 5 wpm morse exam, this app has adjustable speeds to suit your needs.
KMT uses Farnsworth timings like the ARRL use for their transmissions and practice tapes. You can increase the gap between characters so you still learn them at full speed but not feel overwhelmed by the frequency they are sent.
✓ Character and word speeds are fully adjustable between 5 and 50 wpm
✓ Eight modes: random, 100 common words, 1000 common words, QSO (includes prosigns), callsign, morse abbreviations, custom text (which also allows you to input & practice prosigns also), and RSS Feeds
✓ Test yourself! Input what you're hearing and calculate your results to see how well you're doing
✓ Warm up feature which plays the latest character prior to the main session
✓ Character setup option screen to include/exclude characters, such as punctuation, prosigns and non-english characters - this also allows you to learn additional characters
✓ Adjustable group size with option to fix size in random mode
✓ Adjustable pre-session delay and session time (1 minute to 30 minutes)
✓ Adjustable tone frequency (200Hz - 2000Hz)
✓ Background noise (QRM) simulator
✓ Speak feature which tells you the latest character if text to speech is available
✓ Favour recent characters option for those new characters so they are played more often
✓ Display character before or after it's sent
✓ Plus lots of customisable options to change
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.
with Ham Radio Tools you can:
-look up callsign information!
-find current GPS location information
-save each contact to a log database stored on the phone
-review and edit each log entry
-search for keywords in different fields of the log entry
-calculate a simple quarter and half wave antenna length
-calculate the wavelength of a frequency
*** Now includes band limits for All Amateur Licenses ***
*** Calculators for Yagi, Dipole, J-pole, and Vertical antennas ***
*** Callsign Lookup is now included!!! ***
Callsign database is pulled from FCC website and updated daily! Callsign lookup works for U.S. callsigns ONLY.
Results include address, current and previous license updates, date of any updates, type and class of license, and even includes a link to the FCC database for even more details. Address can be mapped on Google Maps by tapping on the address.
The contact log allows you to store information about a completed contact including date, time started, time ended, frequency, mode, station, location, signal reports, and an area for general comments about the contact. A must for field day and general book keeping. Data and start time are filled in when starting the log to save time. End time can even be filled in automatically upon saving the log entry.
The contact log also comes with a handy search feature for quickly locating that one of a kind long distance contact you like to brag about. The search is focused on fields chosen by the user. If you want to search for a specific call sign select station as the search location and enter the call sign in the search box. Search keywords are CASE SENSITIVE meaning capital or lowercase letter DO matter.
A summary of the band limits for each class are included. Always refer to the official ARRL Band Plan when in doubt.
Some simple formulas and calculators are included for quick reference in the field and includes: Yagi, Dipole, J-Pole, Vertical antennas, and wavelength calculator.
- 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)
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.
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.
The free version includes ads, and includes the latitude, longitude, and grid square with no internet access. It requires an internet connection to provide county, country, etc
Works with either phones, or tablets. Tablet version makes it easier to manipulate data, and do logging, even having the ability to see current data while logging on screen (See screen shots). ADIF files can be exported, including all information collected (Upgrade required). The feature list is improving constantly, now the ability to edit and delete log entries is included, along with a database of all LOTW listed call signs. Submit your logs to Logbook of the World and eQSL. LOTW includes putting the logged information from Ham Finder in to your contact, so you can travel from gridsquare to gridsquare and not have to do anything special to log your contacts! See a map of where you've made QSOs that are logged. Check the DXCC of the callsign you are considering logging. More coming soon!
The tool is US centric right now, but an effort is being undertaken right now to expand the list, particularly in offline operations. Already the local translation is used for States and Counties, and will likely be used for Countries soon. I'm working on improving the translations across the board, in fact, to simply work everywhere. If there's a particular location you'd like to see, or would just like to help improve this app, please take the survey at https://docs.google.com/forms/d/1AfrKLXJwt9l1e-1Rew7G5WLyorcd_kLWyRmt82rw994/viewform
Note: This app will NOT help you find the best ham in your area. Sorry.
Reasons for each permission required:
ACCESS_FINE_LOCATION- This app uses GPS to determine where you are, and requires this permission to get that information
INTERNET- Used to query web APIs about your exact location.
ACCESS_WIFI_STATE- Used to make sure we don't try to contact someone if you don't have a network connection
WRITE_EXTERNAL_STORAGE- Used for Google Maps to determine your location if you don't have one
VIBRATE- Used to notify user of some errors
READ_PHONE_STATE- This is used to ensure that each user has a unique token, only used for those who purchase in app products.
BILLING- Used to purchase in app products, such as US Counties Map.
NEW 2014-2015 Edition
One for the Road... Now the best directory of frequencies for the 23,000+ Amateur Radio repeaters around the country is available to you…anytime…anywhere.
Containing the entire ARRL Repeater Directory and powered by TravelPlus you can now...
➢ Search for repeater data offline by city/state or coordinates. No Internet connection required! It’s ready and there when you need it!
➢ Find nearby repeaters based on your current location (location services must be enabled) and view detailed information.
➢ Locate repeaters on terrain-view maps (Google Play Services and Internet connection required for Google Maps).
➢ Filter repeater selections by frequency bands: 28, 50, 144, 222, 440, 900 and 1240 MHz plus ATV, D-STAR, APCO-25, DMR, EchoLink, IRLP
➢ Filter repeater selections by their attributes: Open repeaters only, repeaters with weather information, linked repeaters and ARES/RACES repeaters.
Simple, fast and easy to use… All just a touch away!
Copyright © 2014 by DHF Systems, LLC and The American Radio Relay League, Inc. All rights reserved.
Repeater Directory® is a registered trademark of The American Radio Relay League, Inc.
TravelPlus for Repeaters™ and TravelPlus™ are trademarks of DHF Systems, LLC.
All other trademarks are property of their respective holders.
To protect equipment owners, repeater locations and geocoded location data are approximations only. Directional information and location points displayed on maps DO NOT indicate actual repeater locations. This product is NOT designed for, nor is it intended to be used for locating or navigating to actual repeater sites.
The repeater listings that appear in the ARRL Repeater Directory® are based on information provided annually by volunteer repeater coordinators throughout the United States and Canada. If information about a repeater is not submitted to the ARRL, it is not published. If a repeater appears to have been omitted from an ARRL product, or if the information that does appear is incorrect, please contact the responsible repeater coordinator first. The complete list of coordinators is available at http://www.arrl.org/nfcc.
ATTENTION REPEATER OWNERS: If you discover an error in this edition of the ARRL Repeater Directory®, please do the following:
* Notify your repeater coordinator.
* Submit an update to the ARRL Repeater Information page on the Web at http://www.arrl.org/repeaters.
Data and repeater information has been obtained from a number of sources believed to be reliable. However, because of the possibility of human or mechanical errors either from these sources or inherent in the compiling of a database and program of this size, neither DHF Systems, LLC and The American Radio Relay League, Inc. are responsible for or assume liability for the accuracy, adequacy, completeness, errors or omissions in any maps, map data, repeater data, or any other data, information or imagery incorporated in this product, or the results obtained from the use of such information.
THIS SOFTWARE IS PROVIDED BY DHF SYSTEMS, LLC AND THE AMERICAN RADIO RELAY LEAGUE, INC. "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DHF SYSTEMS, LLC AND THE AMERICAN RADIO RELAY LEAGUE, INC. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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
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
DroidPSK is able to decode a BPSK31 or BPSK63 signal though the build in microphone. Just hold your Android phone or tablet close to the speaker of you Amateur Radio transceiver, adjust the waterfall slider to the PSK carrier frequencies and DroidPSK will start decoding.
In transmitting mode characters can be entered trough the keyboard. 20 Macros are also available to store standard texts like "name and qth" and "station info"
Starting V2.0 DroidPSK now also includes a logbook. Callsign, Name RST etc can be easily transferred 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.
If you like to see more information you can take a look at the manual at: http://www.wolphi.com/ham-radio-apps/droidpsk/manual/
The suggested frequencies for PSK on the Amateur Radio bands are:
- 160m 1838.15 KHz
- 80m 3580.15 KHz
- 40m 7035.15 KHz for region 1 and region 3, and 7080.15 KHz for region 2 *
- 30m 10142.15 KHz
- 20m 14070.15 KHz
- 17m 18100.15 KHz
- 15m 21080.15 KHz (although most activity can be found 10 KHz lower)
- 12m 24920.15 KHz
- 10m 28120.15 KHz
If you experience any problems or have any suggestions please let me know at email@example.com
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)
The features in the receiving modes include:
- Spectrum analyzer for easy tuning
- Auto synchronization ( auto slant correction)
- Auto mode detect
- VIS encoding (detects SSTV header and sets mode automatically)
- Level bar for adjusting the audio signal
- Auto save received pictures to SD Card.
- Share received pictures (Email , Dropbox etc.)
The features in the transmitting modes include:
- Pre-load up to 9 pictures from the SD Card into DroidSSTV’s gallery
- Adjust contrast, brightness and saturation
- Template editor for easily overlaying templates over images
- Macro’s for use with templates
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 firstname.lastname@example.org. 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.
This app was originally programmed for Ham Radio (Amateur Radio) operators to remove unwanted background noise and improve SSB and CW signals (Morse Code) but it can be used in different other ways.
-Bird watchers can use it to filter out higher frequencies and eliminate street noise or other disturbing low frequencies.
-Musicians can filter out a spectrum of specific instruments.
The DSP Audio filter uses a freely adjustable lowpass and highpass filter which allows you to select specific filter frequencies and bandwidths. A waterfall visually displays the incoming audio spectrum to better identify the wanted or unwanted frequencies. You must use a headphone to avoid feedback effects.
Ham Radio Operator’s: Just place your phone’s microphone close to your radio’s speaker and listen to clear audio in your headphone.
How to use:
DSP Audio Filter uses a waterfall to display the incoming frequency spectrum. With 2 sliders the cut-off frequencies can be adjust. The areas which are covered by a grey blurry layer are cut out and they will not be passed through to the headphone. All other areas will pass the filter.
The DSP Audio Filter can be used with 4 different sampling rates (22050Hz, 16000Hz, 11025Hz and 8000Hz) which can be set in the settings menu. Unfortunately not all devices support those sampling rates. The DSP Audio Filter will check for the supported sampling rates and only allows the selection of the supported sampling rates.
For any question please visit our new forum at http://www.wolphi.com/forum/
This is the first version of the DSP Audio Filter.It has been tested on several Android devices and has performed very well. However, since we are not able to test the performance on all 150+ Android devices it might not work on some devices. If the DSP Audio Filter doesn’t work on your device you can uninstall it 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 passes and you are not happy with the DSP Audio Filter, 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. 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.
Upon start the the time will be synchronized with an NTP server and the status of the beacons will be checked from the NCDXF website.
For any question please visit our new forum at http://www.wolphi.com/forum/
Encoder: Always 2 tones are assigned to each key.The length of the tone and the pause between the tones can be set from 35ms to 1500ms.
A total of 36 marco’s can be used to play phone numbers, ham radio auto patch numbers, amateur radio echolink id's any many more.The 36 macro's can be saved to the phones/tablets memory. This way a unlimited amount of macros can be used. The DTMF tone length and the pause between the tones can be adjusted.
Decoder: The decoder detects the DTMF tones and prints them on the screen. A sophisticated algorithm detects the tones even in noisy environments.
Please let us know what you think. If you like DTMF please leave us a feedback at Google Market. If you have any suggestions please email us at firstname.lastname@example.org
DX Cluster's focus is on alarms and real time spots. The app runs in the background as a service and alarms you with a ringtone of your choice when a callsign or prefix appears in the DX Cluster.
The key features of DX Cluster are:
- Real time spots: Connect to one of the 60 AR-Clusters in the database and get real time spots.
- Filtering: A country filter can be set to filter out countries of the spotter or spot. If you just want to receive spots originated from North America enter K,VE and choose spotter. If you just want to see spots from Germany, Netherland and England, choose DX and enter DL,PA,G.
- Alarms: DX Cluster will alarm you by a ringtone of your choice if a callsign or a prefix appears in the DX Cluster. For example enter ZL8 in the alarm field and as soon as a spot with the prefix ZL8 appears on the cluster the DX Cluster will alarm you. Multiple callsign or prefix entries are possible.
This app is intended to use by ham radio (amateur radio) operators only. You need a ham radio callsign to log into the DX cluster!
For any question please visit our new forum at http://www.wolphi.com/forum/
HF Weather Fax is great to use on all seagoing sail and power vessels, sailboats, power boats, fishing boats and commercial vessels and a very affordable alternative to high prices weather fax decoders.
HF Weather Fax for Android is the most portable way to decode weather charts and images.
HF Weather Fax has the following features:
- Manual mode / auto mode
- Spectrum Analyzer for easy tuning on the receiver
- Automatic start tone and end tone detection (in auto mode)
- Synchronization at the beginning of the decoding (in auto mode)
- Auto save recorded images to SD card (in auto mode)
- Manual start column correction (in auto and manual mode)
- Manual slant correction (in auto and manual mode)
- Auto scroll mode
- Touch screen image zooming
- Black/white mode with threshold adjustment
- History screen
- Easily input the number of test questions
- Color coded grades
- Adjustable grade scales
- Multiple grading scales
- Different grade styles: "ABCDEF”,“ABCDE”,“ABCDF”,"123456”,”12345”,”PASS / FAIL”
Must have app for : Teachers - Professor - Assistants - Student Teachers - Interns - Schools – Parents
NAVTEX broadcasts worldwide on 518 kHz and 490 kHz using a data mode called SITOR-B (amateur radio (Ham Radio) operators might recognize it as AMTOR).
Sharp filters and a sophisticated forward error correction algorithm makes decoding of very weak signals possible.
Get your copy of DroidNavtex today, and never be without up to date marine weather information and marine warnings again..
You need to have a receiver which can receive 518KHz or 490KHz SSB to use this app!!
An “Auto mode” finds the frequency and the sideband of the Navtex signal automatically. With “Auto mode” turned off the frequency and sideband can be adjusted manually.
A built-in database stores the received messages which can then be filtered, sorted and shared. Messages can be deleted individually, in groups or by age.
To save battery power 7 timers can be set to start DroidNavtex at a given time to decode messages. All timers can be set in local time or UTC.
Great to use on all seagoing sail and power vessels, sailboats, power boats, fishing boats and commercial vessels.
You can find a detailed user guide at www.droidnavtex.com
I realize that the 15 minutes which Google allows is not enough for testing DroidNavtex. If you are not happy with DroidNavtex please email us at email@example.com to request a refund.
A "switch cover on" function will lay a cover on top of the board to hide the PCB circuit board. The meter, displays and LED's will still show but the electronic board will be hidden.
If you click the red button the wallpaper will switch to nightmode.
TO OPEN: Home->Menu->Wallpapers->Live Wallpapers
CHOOSE: Gadget Battery Wallpaper
Do you have any suggestions? Please contact me at firstname.lastname@example.org.
Voice keyer supports repeated sending of a message as often required in contests
Perfect for Ham Radio (Amateur Radio) operators as a voice keyer for SSB contests or voice beacon.
This is the first version of Voice Keyer. If you would like to see more features or have ideas to improve Voice Keyer please email me at email@example.com. I would like to hear from you.