HAM Support - Powerful log app
Log it, remind it, and HAM it!
Free · In-App Purchases · Designed for iPad
All-in-One App for Amateur Radio Operators!
Introducing the Ultimate Tool for Amateur Radio Enthusiasts: HAM Support!
Effortlessly search for amateur radio stations in Japan and streamline your QSO log management with HAM Support, the all-in-one app for amateur radio operators. Instantly check JARL (Japan Amateur Radio League) membership status, QSL card transfer availability, and manage your QSO logs, radio, and antenna details—all within this app.
Features
- QRZ.com Integration
For stations outside Japan that can’t be found in the Ministry of Internal Affairs and Communications (MIC) database, you can use QRZ.com integration to search and auto-fill the information!
- iCloud Sync
Easily sync QSO logs across multiple devices to keep your data up-to-date wherever you are.
- Comprehensive QSO Log Management
Organize and search QSO logs by date and callsign. With the preset feature, inputting information about your radio and antenna is a breeze.
- Automatic GPS Input
Automatically input details such as operational QTH, JCC/JCG/KDN code, and weather based on your current GPS location. Instantly acquire operation altitude, enhancing efficiency in field operations.
- Automatic Distance Calculation with Your Contact
Based on the entered QTH locations, the system identifies both parties' QTH and calculates the distance between you, displaying it on the map.
Now, you can find out the distance to your contact so easily!
- QSL Card Sending Reminders
Manage sent QSL cards and receive reminders for cards yet to be sent, ensuring reliable tracking of important QSOs.
- CSV & ADIF Export
Import and export QSO logs in CSV format for seamless data analysis and management with external software. ADIF export and TurboHAMLOG/zLog CSV import are also supported.
- Radio & Antenna Preset Registration
Quickly register frequently used radios and antennas, allowing faster input next time. Existing presets are also easy to manage.
- QSO Log Search
Search past logs by callsign, name, frequency, and more, making it easy to prepare for future QSOs.
- Blacklist Feature
Flag stations with poor conduct by adding them to the blacklist and receive warnings when initiating a QSO log with those stations.
Why Use HAM QSO Support?
- One-Click Information Retrieval from JARL and the Ministry of Internal Affairs and Communications
Simply enter a callsign, and HAM QSO Support displays information instantly.
- Offline Functionality
Saved logs can be viewed and managed offline, making this app reliable even in remote locations.
- User-Friendly Interface for All Experience Levels
With a simple, intuitive UI, HAM QSO Support caters to beginners and veteran operators alike.
- Ad-Free with Basic Functions Available Free of Charge
No ads to interrupt your experience. Additional features may require a subscription.
Terms of Use
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
more Interface adjustments
- When displaying past contact history with the other station, the callsign used at that time is now also shown, making it easier to tell whether the other station was operating portable during past contacts.
1.6.12 4 days ago
New Feature
- Expanded the fields shown for previous QSOs when you have contacted the same station before, and made them selectable in Settings.
1.6.11 3 Mar
Bug Fixes
- Fixed an issue where importing from TurboHAMLOG could fail due to parsing errors when the data contained special characters, which prevented TurboHAMLOG imports from completing.
1.6.10 20 Feb
Happy New Year!
We’re planning even more updates in 2026 as well—thank you for your continued support!
New Features
・Added a feature to enter your QRZ.com login details and fetch the other station’s QTH from QRZ.com. As with Japanese stations, tapping the button will auto-fill the fields.
・If you have a QRZ.com Premium membership and the other operator’s name can’t be found from past records, the app will now load the name from QRZ.com (stations outside Japan).
・If you have a QRZ.com Premium membership and the other station has described their QSL card routing method on QRZ.com, the app will now display that information as well (stations outside Japan only. For Japanese stations, JARL information will be shown as before).
・If you have a QRZ.com Premium membership, the app will now load additional details besides the other station’s QTH as well (e.g., the other station’s additional call signs, CQ Zone, email address, name, Grid Locator, ITU Zone, last updated date, etc.).
・Added a feature to minimize the tab bar while scrolling (iOS 26.0 or later).
・When a search keyword is entered on the QSO history screen, the app now shows the number of logs that match the search.
・Added a feature to show only logs that have duplicate records by entering things like “type:dup” in the QSO history search.
・Added a feature to carry over contest settings.
Exporting / Importing QSO Data
・When importing a CSV, added an option to import while excluding duplicate logs.
This feature is available only for HAM Support's CSV files. Duplicate detection is based on matching both the QSO time and the other station’s call sign. Even if other fields differ, if the QSO time and call sign match, it will be treated as a duplicate.
・When exporting to ADIF, the app now also exports split operation information.
・When importing from TurboHAMLOG, added a dialog that shows detailed import results.
・When importing from TurboHAMLOG, the app can now import even if the CSV file encoding is Unicode.
Bug Fixes
・Fixed the mechanism related to iCloud sync.
・Fixed an issue where LF frequencies (30–300 kHz) were shown under MF.
・Fixed an issue where non-English text couldn’t be entered in Contest NR presets.
・Fixed an issue where, when the contest feature was enabled, non-contest logs couldn’t be saved.
・Also fixed some of the UI text displayed in the app.
1.6.9 4 Jan
New Features
・Added support for split frequency operation.
・Added new options in log search. For details, please check our website ( https://citrus-rin.jp/?p=919 ).
Bug Fixes
・Optimized the process when deleting logs.
・Fixed an issue where some search keywords did not work as intended.
1.6.8 24/09/2025
Bug Fixes
- Fixed an issue where the app would crash when exporting QSO logs to CSV or ADIF on iPad.
1.6.7 16/09/2025
New Features
・Added support for iOS 26.
・Added a function to check and repair data integrity when issues are detected. If the app crashes when deleting or exporting logs, please go to “Settings → Export/Import Update History → Repair Data” to perform the repair.
・Now you can measure distance and retrieve the coordinates of the other station even when the QTH is entered as a Grid Zone (GL). Only 6-character formats like AA11AA are supported.
・When creating a new log, the source used for distance measurement has been changed from your QTH (address) to precise coordinate data. This allows accurate distance measurement even when no address is available, such as over the sea or in the air.
・Added support for importing from AirHamlog CSV.
・When creating a new log, if the other station’s portable operation is set to a location other than the fixed station, the callsign in the title bar now includes the portable notation.
・When creating a new log, the other station’s callsign is now displayed not only in the title bar but also at the bottom of the screen.
・Added an extra button to add a new log from the log list for easier one-handed access.
・If the contacted station is a Japanese amateur radio club station, the club name retrieved from the Ministry of Internal Affairs and Communications database is now automatically entered in the comments field.
・In the detailed view of past QSO history, the label of the comments field has been removed for better readability.
・You can now display the number of unsent QSL cards as a notification badge.
・Added QRZ.com information search feature (Beta).
・Added French language support.
Bug Fixes
・Fixed an issue where the coordinates of the other station’s QTH were not correctly obtained depending on the device’s language settings.
・Fixed an issue where, while creating a new log, if you switched to another tab and then returned, the selected rig, antenna, or contest NR would revert to the first item in the list.
・Fixed an issue where information for commemorative callsigns with 4, 7, or 8 digits could not be searched in the Search tab.
・Fixed a rare issue where, when importing logs from TurboHAMLOG, some log dates were incorrectly processed.
・Fixed an issue where QSOs with no distance measurement were counted as “Local” in the statistics graph.
CSV Specification Changes (Export)
・Changed the column name for region code export from “JCC/JGC” to “My CNTY”.
・When exporting “No QSL”, the field previously labeled “なし” in Japanese is now unified to the English “NoQSL”.
・Changed the column name for Grid Square from “Grid Zone” to “Grid Locator”.
CSV Specification Changes (Import)
・The column names “My CNTY”, “JCC/JCG”, and “JCC/JGC” are now all recognized.
・When importing QSL card data, the values “なし”, “NoQSL”, and “false” are now all correctly interpreted as “No QSL”.
・When importing Grid Square data, both “Grid Zone” and “Grid Locator” column names are now recognized.
Background Processing Changes
・Optimized app performance by using some external libraries.
1.6.6 16/09/2025
Translation Fixes
- Fixed an issue where some texts were not displayed correctly in English and Korean environments.
1.6.5 13/04/2025
Bug Fixes
- Fixed an issue where users could not enter decimal points in frequency fields when using a locale that uses a comma ( , ) instead of a period ( . ) as the decimal separator.
- Corrected the label from “Grid Zone (GL)” to “Grid Locator”.
1.6.4 13/04/2025
New Features
- Added support for importing from AirHamlog CSV.
- When using digital modes like FT4 or FT8, you can now record SNR values with +/− signs instead of RS(T).
- Added support for new modes: FST4, FST4W, PSK125, Q65, and WSPR.
- For modes that use RSV or RSQ instead of RST, the field name “RST” is now automatically updated to “RSV” or “RSQ”.
Bug Fixes
- Fixed a rare issue where the app could crash when deleting incomplete logs.
1.6.3 01/04/2025
New Features
- When creating a new log, entering a JCC/JCG code such as "100119" or "0110" in the opponent’s QTH field will now automatically search for the corresponding JCC/JCG location name and fill it in. KDN codes such as "C020" can also be used.
- For Japanese amateur radio stations (excluding special event stations), if the callsign’s area number does not match the QTH’s area number, the system will now automatically recognize and append the appropriate portable notation to the callsign when saving.
- The automatic retrieval of region codes from GPS now also supports Korea’s KDN codes.
Bug Fixes
- Fixed an issue where, if a saved callsign was not included in the presets, it would not display correctly in the log editing screen.
- Fixed an issue where, if the callsign inheritance setting was enabled and the previously used callsign was removed from the presets before creating a new log, the callsign would not be displayed correctly.
1.6.2 24/03/2025
ADIF Modifications
- When exporting in ADIF format, if transmission power (W) exists, it will now also be included in the export.
Bug Fixes
- Fixed an issue where the band plan check result would display incorrectly when the frequency field was empty.
- Fixed an issue where caller classification icons were not displayed when UTC mode was enabled.
- Fixed an issue where information displayed on iPhone and iPad (macOS) was inconsistent.
- Fixed an issue where callsigns registered in the blacklist and contest-related settings were not exported when saving settings in JSON format.
- Fixed an issue where the page indicator would obscure the text when displaying the Japan Ministry of Internal Affairs and Communications search results on the new log creation screen.
New Features
- When the Japanese phonetic alphabet function is enabled, the opponent's QTH will also be displayed using the Japanese phonetic alphabet.
- If kanji characters are entered in the Japanese phonetic alphabet field, they will be converted to their phonetic readings and further converted into the corresponding phonetic alphabet representation.
1.6.1 22/03/2025
New Device Support
- HAM QSO Support now works on iPadOS and macOS!
New Features
- Added a NATO Phonetic Alphabet conversion.
- QTH timezone detection now displays local time differences when different from the current location.
- Previous log entries can be inherited. Frequency, mode, call type, and more are auto-filled based on the last saved entry. Configurable in Settings → New Log Creation Settings.
- Added RST input shortcuts ("59", "58", "57") above the keyboard.
- Added a button to auto-retrieve QTH from GPS during log creation, entering Grid Zone, address, JCC, and weather in one tap.
- Changed JCC/JCG to "Regional Codes" for international usability. U.S. region code support planned.
- Improved frequency-to-meter conversion to support international band plans.
- When exporting ADIF, if the opponent’s QTH coordinates are available, their Grid Zone is now calculated and included.
- ADIF export now includes QSL sending method, status, and JCC data.
- Added an option to display distances in nautical miles only if exceeding a threshold. The threshold is configurable.
- Callsign input now supports inserting "/" with the space key.
- Added "Direct" as a QSL card category.
New Statistics Features
- Added the following to QSO statistics:
- QSO duration distribution, Top 5 longest QSO distances, Top 5 longest durations
Bug Fixes
- Fixed an issue where multiple dots (e.g., "7.090.000 MHz") in HF frequencies caused incorrect band and plan updates.
- Fixed an issue where callsigns and QTH fields couldn't be copied via long press. (iOS 18.0 users must upgrade to 18.1+.)
- Fixed an issue where scrolling reset selected callsigns when multiple were set.
- Fixed an issue where JCC/JCG retrieval failed in Japan when using non-Japanese device language.
- Fixed CSV export/import issues caused by special newline characters like U+2028 or U+2029.
- Fixed an issue where QSOs without end times prioritized QSO time over the current time when exporting CSV.
- Fixed CSV export order inconsistencies in some environments.
- Fixed missing portable indicators in ADIF exports.
- Fixed incorrect ADIF `GRIDSQUARE` values. Also corrected `MY_GRIDSQUARE` being mislabeled as `GRIDSQUARE` (opponent’s GL).
- Adjusted ADIF format to include elevation, precise frequency, and coordinates, updating to ADIF version 3.1.5.
- Fixed an issue where ADIF QSO times relied on device time settings instead of UTC.
- Fixed ADIF `BAND` field errors caused by unexpected frequency values.
- Fixed incorrect QSL card labels in some environments.
Known iCloud Sync Issues
- iCloud sync is not working correctly. A database update in the next release will fix this.
CSV Import Adjustments
- Fixed an issue where TurboHAMLOG imports failed to recognize the correct timezone.
- TurboHAMLOG imports now support both JST and UTC.
- TurboHAMLOG imports now support 13-column CSVs even if `remarks` is missing.
- Fixed an issue where remarks fields' newline characters weren't recognized correctly in TurboHAMLOG imports.
- Fixed an issue where imported QSO end times were overwritten by QSO time.
UI Adjustments
- Renamed "New Log Creation Presets" to "New Log Creation Settings" and moved it to "Log Management."
- iPadOS now supports split-screen for better usability. ⌘ + N now triggers new log creation.
- If QTH display is enabled, the log list now also shows distance (if available).
- If the QSO duration is over one minute, it now appears next to update time in the log list.
- The log list now displays call type icons: C (Call) for initiated calls, R (Respond) for received calls.
- On small screens (e.g., iPhone SE) or with large text settings, log entries now prevent unintended line breaks.
- Icons were added to CSV export/import buttons for better visibility.
- Added a guide feature to explain complex functions. Users can toggle this in settings.
New App Icon
- Added a new app icon: "…Are they an edible HAM?". You can switch it from settings.
1.6.0 20/03/2025
Bug Fixes
- Fixed an issue where files outside the "HAM Support" folder in iPhone storage (File app) could not be imported when importing QSO logs via CSV from TurboHAMLOG.
- Fixed an issue where iCloud synchronization was not working properly.
1.5.3 14/02/2025
Bug Fixes
- Fixed an issue where importing a CSV file would cause the app to crash if the Time End column existed but was empty.
1.5.2 08/02/2025
New Features
- Added support for displaying distances in Nautical Miles (NM) on the distance measurement screen. You can change this setting from Settings → "Initial Settings for New Log Creation."
* The stored distance unit is always in kilometers (km). Changing this setting only affects the display within the app.
- If there are two or more past contacts with the same station, all previous contact comments will now be displayed when creating a new log entry for that station.
- Added a numeric row to the top of the English keyboard when entering a callsign in the new log entry screen.
- When entering a frequency in the new log entry screen, not only the band but also the meter notation (e.g., 433 MHz → 70 cm) will now be displayed.
- The log details screen now allows distance calculations between contacts.
- If coordinate data is available, both parties' QTH locations will now be displayed on the map within the log details screen.
- Added Fahrenheit (°F) display support for weather information in premium features. The default remains Celsius (°C), but you can switch it from Settings → "Default values for new log entries."
- Added support for JCC district code database.
When using the JCC search function or the JCC auto-input button in the tools section, the district code will now be automatically identified and entered.
Bug Fixes
- Fixed an issue where JARL membership verification would not work properly when the Japan Ministry of Internal Affairs and Communications radio station search API was under maintenance.
- Fixed an issue where some text would be cut off when the app language was set to English and adjusted English translations.
- Fixed an issue where the distance between contacts was not displayed on the QSL card reminder log details screen.
- Fixed an issue where the comment field (Other) would break the UI when entering a large amount of text in a new log entry.
- Fixed an issue where some text was incorrectly left-aligned in the QSL reminder log details screen.
- Fixed an issue where some text was not properly localized in the contact history statistics page.
- Fixed an issue where newly added settings were not correctly reflected when exporting CSV files.
UI Adjustments
- Changed the default font to Menlo to improve the distinction between "0" (zero) and "O" (Oscar) in callsigns.
- Moved the UTC(Zulu time) display setting from the "Contest Menu" to the "New Log Preset Settings" page for better consistency in settings.
1.5.1 01/02/2025
New Features
・Tapping on an item in the JCC/JCG search list now displays a map preview of the region.
・Supported call signs with slashes like “JD1/” or “/JD1” for registration and usage as personal call signs.
・Added compatibility with CSV files used in zLog.
・When adding a QSO with a station you have communicated with before, comments, modes, frequencies, and other information recorded in past QSOs are now displayed in the log creation screen.
・Enhanced the export function to filter QSO logs by call sign, QSO time, contest identifiers, etc.
・In the new log creation screen, you can now view each other’s QTH on a map. The other station’s QTH can also be entered using addresses or landmark names.
・Added the ability to display past QTHs on a map.
Contest Features
・Added functionality to register contest identifiers and sent/received NR for use in contests.
Database QSOs
・Added 98 discontinued JCC entries, 243 discontinued JCG entries, and 1 missing JCG entry to the JCC/JCG database.
(Updates to support district number databases are planned for future releases.)
Design Changes
・Fixed an issue where the subscription registration screen was not displayed correctly on smaller devices. Also redesigned the interface to allow checking and modifying subscription statuses and durations.
・Added a new app icon, “Antenna.”
・Modified the background of some app icons to display a gradient in dark mode.
Bug Fixes
・Fixed an issue where administrative district information was missing when auto-filling QTH from GPS in regions with administrative districts (e.g., Sapporo, Hokkaido).
・Fixed an issue where automatic QSO time updates would not resume after clearing the call sign field following a call sign input.
・Fixed a crash issue that occurred when attempting to delete a QSO while QTH display settings for yourself or the other station were enabled.
1.5.0 05/12/2024
Bug Fixes
- Fixed an issue where the QSL card status was reset when importing from CSV.
- Fixed an issue where the start time of a contact was overwritten by the end time during CSV import.
1.4.1 27/10/2024
New Features
- iCloud sync support added.
- Export QSO logs in ADIF format.
- Import QSO history from TurboHAMLOG CSV.
- Added several premium features.
- Rebuilt the app design, optimizing the tab bar performance.
- Search for country names based on call sign prefixes in the search screen.
- Display your QTH and the other QTH in the QSO log list.
- Access settings and other tabs while creating a new log.
- Added “End Time,” “Caller,” “My Call Sign,” and “QSL Card Print Text” fields to new log creation. (Future updates will include PDF export based on QSL Card Print Text.)
- The start time auto-updates to the current time until the call sign is entered.
- Automatically input JCC/JCG based on your location.
- Automatically input current weather based on location data.
- Expanded the types of input modes.
- Record 1-way QSL cards.
- Display country names based on the call sign prefix in the new log screen.
- Calculate and display distance between your QTH and the other QTH if entered as addresses.
- Perform multi-field searches in the history screen; search for both call signs and additional entry details.
- Search by portable operations. Use keywords such as “JL1BYR/3.”
- Added a Tools tab for more features.
- View statistics based on previous logs, including total QSO count, in graph format.
- Search Japanese amateur radio band plans based on frequency.
- Add an option to automatically check Japan’s amateur radio band plan when creating a new log.
- Added a tab for searching JARL JCC and JCG information by prefecture or number and browsing the list.
- Option to use UTC instead of local time in new log creation.
- Set initial values for Caller, RST, and Output Power.
- Added Call Sign Blacklist feature. Get a warning if the call sign is blacklisted during log creation.
- Import and export various settings as CSV.
UI Adjustments
- Changed “New Log” button label to “Log Record” for clarity.
- Divided QSO log export/import tabs for clarity as the options increased.
Bug Fixes
- Fixed occasional crashes when switching tabs rapidly.
- Fixed a CSV import bug where data sometimes failed to load.
Other minor bug fixes and optimizations included.
1.4.0 26/10/2024
The following bugs have been fixed:
- In the Radio Station Search screen, an issue where information such as the installation location and station category would all match the first result when multiple search results exist for the same callsign has been resolved.
- In the Add New Log screen, an issue where 6-character callsigns were displayed even when entering a 5-character callsign has been corrected. Additionally, when pressing the “Auto Input Opponent’s QTH” button, if multiple radio station records exist for the opponent, the system has been modified to allow selection from a list to prevent incorrect addresses from being input.
1.3.2 22/10/2024
This version added English and Korean support throughout the app!
We plan to expand support for more languages in the future.
New Features
- Added support for changing the app icon.
In addition to the current icon, we’ve added three new icons: English, Korean, and Pride.
All icons are available in both light and dark modes, and we plan to add more in the future!
- The entire app now supports both English and Korean.
We plan to expand support for more languages in the future.
- The auto band recognition feature now includes support for MF (3MHz) and EHF (30000MHz).
UI Adjustments
- Moved the frequency input field from the “Detailed Info” section to the “Basic Info” section, making it easier to access frequency information.
- Resolved an issue where the JARL search results had insufficient side margins in certain environments.
- Renamed the sorting options for QSO history to make them easier to understand.
- Added help to each menu in the settings screen to make it easier to understand how to use the settings.
- Improved the process of adding presets for radios and antennas, making it clearer. Additionally, pressing the return key now adds presets, improving the overall UX.
Bug Fixes
- Fixed an issue where pressing the GPS fetch button for Grid Zone, QTH, or altitude while adding a new log would mistakenly alter unrelated fields.
- Modified behavior when searching for a station that doesn’t exist in the JARL database, clearing previous search results to avoid incorrect recognition.
- Fixed an issue where swiping the top bar would discard the log data without warning, even though the cancel button couldn’t close the window in one tap during log creation.
- Resolved an issue where tapping the uncolored center area in the QSL card management screen would trigger QSL card reminders.
- Fixed a bug where pressing anywhere other than the delete button in the preset list would still delete the preset.
- Addressed rare crashes or freezes in certain environments when exporting QSO history as a CSV file.
- Fixed an issue where the search page on the main screen failed to load or took an unexpectedly long time during the first startup in certain environments.
- Fixed a crash that occurred when performing specific operations on the callsign input screen in some environments.
- Resolved an issue where certain keywords used in searches would cause incorrect JARL search results to appear.
- Changed the behavior after posting a new log to automatically refresh the logs, addressing the issue where the new log would not appear temporarily due to the lack of automatic reloading.
- Fixed an issue where, despite the coordinates being loaded, they wouldn’t display on the new log submission screen in certain cases.
- Resolved an issue where overly long QTH entries would cause unexpected horizontal scrolling.
- Fixed inconsistencies between the QSL reminder, QSO history, and new QSO record screen backend processes that occasionally resulted in incorrect displays.
Various other bug fixes and optimizations included.
1.3.1 20/10/2024
Interface adjustments
- When displaying past contact history with the other station, the callsign used at that time is now also shown, making it easier to tell whether the other station was operating portable during past contacts.
more Version 1.6.12 4 days ago
Data Not Collected The developer does not collect any data from this app.