One search, full depth
Search frequency, station, language, country, or code across the complete on-device directory.
01THE FOUNDATION
A deeper directory
Thousands of broadcasts.
Thousands of broadcasts.
One intelligent atlas.
Built on the respected Aoki and EiBi datasets, enhanced with additional listening references, and arranged for fast local discovery—even when your connection disappears.
Always within reach
Download the database once and keep exploring schedules wherever listening takes you.
Distance in context
When location data is available, see an approximate distance between you and the transmitter.
02CODE INTELLIGENCE
Codes, made human
Language codes,
Language codes,
written in full.
Shortwave databases use compact language codes. SWAtlas turns a code such as JPN into Japanese, so you can understand the broadcast language immediately while the original code remains available for searching and filtering.
- 01JPN becomes JapaneseThe database language code is displayed as the full, readable language name.
- 02The original code still worksSearch for JPN directly or select it in the ITU code filter.
- 03Country fields are decoded separatelyCompact country codes are also expanded into clear country names.
DATABASE LANGUAGE CODE
JPN
Original code filter active
03LIVE AWARENESS
Right time, right signal
Never miss the moment.
Broadcast schedules should feel immediate, wherever you are. SWAtlas translates UTC, shows live progress, and brings you back at exactly the right time.
Broadcast alert
A quiet reminder,
right on cue.
Set an alert from any broadcast detail and return when the station comes on air.
SWAtlas · nowNHK Radio Japan is live13,645 kHz · Japanese
›
UTC → Local
Time that speaks
your language.
UTC
Broadcast time
YOUR TIME
--:--
Local device time
LIVE PROGRESS
68% complete
BBC World Service
12,095 kHz · English13:00 UTCLIVE NOW14:00 UTC
41 minutes elapsed19 minutes remaining
04SIGNAL TOOLS
Decode the hidden layer
From raw tones
From raw tones
to readable signals.
The Rig button opens focused tools for decoding Radiofax, Morse, and RTTY, plus offline Whisper transcription and translation that helps you understand spoken broadcasts in other languages.
Radiofax
Weather charts, received as images.
Radiofax helps turn HF fax audio into readable image output, making it easier to capture weather maps, marine charts, and visual shortwave broadcasts directly from your radio setup. Smart sync automatically detects the incoming LPM and keeps the image aligned as it is received.
- 01Automatically detects LPM and syncs the fax signal
- 02Decode fax tones into image output
- 03Available from the main screen Rig button
Morse code
Dots and dashes, translated clearly.
The Morse decoder listens for CW tone patterns and translates them into readable text, helping operators follow call signs, numbers, symbols, and familiar shortwave exchanges with less friction. It automatically recognizes WPM, learns the rhythm of the signal, and applies the speed as it decodes.
- 01Automatically learns WPM and adapts while decoding
- 02Decode Morse audio into readable text
- 03Available from the main screen Rig button
RTTY
Two tones, turned into live text.
The RTTY decoder listens for the alternating mark and space tones used by radio teletype signals and converts them into readable characters as they arrive. Smart tuning helps identify the two tones and their shift, while live baud rate, polarity, and confidence readouts make it easier to understand the signal before decoding.
- 01Smart tuning tracks mark, space, and frequency shift
- 02Decode RTTY audio into readable live text
- 03Monitor baud rate, polarity, and decode confidence
Whisper transcription
Foreign broadcasts, understood in your language.
While the other Signal Tools decode specialist radio modes, Whisper helps you explore spoken shortwave broadcasts. Download the transcription and translation models once, turn speech into text, translate it into a language you choose, and archive both versions—all offline.
- 01Transcribe international voice broadcasts with an on-device Whisper model
- 02Translate transcripts into your selected target language
- 03Archive original and translated text for offline reading
05INSIDE THE APP
Designed for focusDense data,
Dense data,
remarkably calm.
Every screen is built to shorten the distance between curiosity and listening—from the first search to the station map.
Drag to explore · Click any screen to enlarge
06THE COMPLETE TOOLKIT
Built for listenersEverything essential.
Explore SWAtlas on the App Store
Everything essential.
Nothing in the way.
Frequency search
Enter a frequency in kHz and find matching broadcasts in seconds.
Station discovery
Search by station name and move through clear, focused results.
Live highlighting
See what is active now with unmistakable on-air treatment.
Smart filters
Narrow results by language, country, schedule, status, or ITU code.
Local schedules
Read UTC broadcasts in the time zone set on your device.
Offline directory
Keep your downloaded reference data ready beyond the network.
Your next signal is waiting
Listen beyond
Listen beyond
the horizon.
One beautifully focused atlas for a world of radio.
Download on the App Store