Web Tools — OpenShack Manual

📱 No install — works on any device

Open the trainer in your phone or tablet browser and add it to your home screen for a one-tap, app-like start. Lessons, progress, audio and the games all run on the device; nothing is uploaded, and your progress stays in the browser. A connected OpenShack Box (sidetone and paddle keying) works over USB on a desktop Chrome, Edge or Opera browser — or from any browser as a Network Box — see Browser support.

Web Morse Trainer

The browser version of the Koch Morse Trainer. Open it at openshack.com/apps/morsetrainer. It covers the same 40 Koch lessons, per-character progress, the Morse alphabet and the Balloon Burst game as the Windows trainer.

Training — listen and type the character you hear. Set Char and Effective (Farnsworth) WPM, switch on Read mode to key it back, and watch the live session accuracy.

The tabs across the top take you through everything the trainer does:

Tab	What it does
Training	The active drill for your current lesson — hear a character and type (or key) it back.
Lessons	The 40-lesson Koch list: unlock or lock a lesson, practise a single one, and see per-character accuracy, times seen and streak.
Progress	Overall accuracy, average response time, per-character bars, your top confusions and recent sessions.
Alphabet	A reference grid of every character and its Morse pattern.
Games	The → Balloon Game and → CW Summit links open the two Morse games, each using only the characters you have unlocked.
Settings	WPM, tone, items per session, minimum accuracy to advance, lesson order, feedback delay, and profile import/export.

Lessons — the Koch order, lesson by lesson. Unlock, lock, or practise a single lesson, and reset a character or all stats.

Progress — overall accuracy and response time, per-character accuracy bars, your most common confusions, and recent sessions.

Alphabet — the full Morse reference, letters, numbers and punctuation, with each pattern shown as dots and dashes.

Balloon Burst — type the character you hear before its balloon floats off the top. It only uses the characters you have unlocked.

Settings — speed, tone, session length, lesson order and timing, plus Export / Import profile for moving your progress.

Moving Your Progress Between Web and Desktop

The web trainer keeps your progress in the browser, in the same JSON format the Windows trainer uses, so you can move a profile either way without converting anything. The desktop trainer stores its profile in the local data folder at:

%LOCALAPPDATA%\DL2CC-STUDIO\Morsetrainer\profiles\default.json

From the web trainer to the desktop:

In the web trainer open Settings and click Export profile (JSON) — your browser downloads default.json.
Close the desktop trainer.
Copy the downloaded default.json into the folder above, replacing the existing file.
Start the desktop trainer — it loads your web progress.

From the desktop to the web trainer:

Copy default.json out of the folder above.
In the web trainer open Settings and click Import profile…, then pick that file.
The page reloads with your desktop progress.

ℹ️ Back up before clearing browser data

Web progress lives in the browser's local storage. Clearing site data, or switching to a different browser or device, starts fresh — use Export profile (JSON) to keep a backup or to carry your progress with you.

Web Advanced Trainer

The browser version of the Advanced Trainer — for operators who already know the characters and want to work on speed and accuracy across the full character set (A–Z, 0–9 and / = ? .), with no Koch progression. Open it at openshack.com/apps/morsetrainer-advanced. It keeps a separate profile, so it never touches your Koch progress.

Web Advanced Trainer — here in Callsign mode with a connected OpenShack Box. Type or key the characters you hear; when the Box is connected, the keying-timing panel scores your dot/dash and spacing ratios and your dot-speed WPM.

Choose how prompts are generated with the Prompt source selector:

Prompt source	What you hear
Word file	Words and short phrases from a built-in text file (English, German and ham-radio abbreviations), shuffled.
Random groups	Random character groups from the full set; you set the group length and how many groups per prompt.
Callsigns	Real callsigns drawn from the well-known MASTER.SCP list.

Set Items per prompt (1–10) and, for groups, the characters per group. Listen mode plays the audio for you to copy; Read mode shows the text on screen and you send it back on a connected OpenShack Box. The Reveal button shows the answer, and Repeat replays it.

ℹ️ Keying-timing analysis (Box required)

With an OpenShack Box connected on a desktop browser, the Advanced Trainer measures your sending: the intra-character (1 dit), inter-character (3 dit) and word (7 dit) spacing, the dot-to-dash ratio (1:3), your dot-speed WPM and a weighted overall score. Switch it on in the trainer's Settings.

The top-right link switches between the two trainers — → Advanced Trainer from the beginner trainer, and → Beginner Trainer back again — so you can keep both open and jump across.

CW Summit (Web Game)

The browser version of the CW Summit speed-climbing game. Open it at openshack.com/apps/cwsummit, or through the → CW Summit link in either trainer. The game sends a callsign, word, group or single character in Morse; you copy it and answer — on the keyboard, or on your paddle with a connected OpenShack Box. Correct answers make the code faster, misses slow it down, and your whole run is drawn as a climb up a mountain: camp flags mark every 5 WPM you gain, a dashed line shows your all-time best peak, and a ghost line replays your best run so you can race yourself.

A run is timed (1–15 minutes; the countdown is on the left). Points reward speed, long targets, quick answers and streaks; reaching a new camp or beating your personal-best peak pays a bonus, and at the end your peak WPM is multiplied by your accuracy — so clean copying wins over lucky guessing. In Settings (gear icon) you choose the input (PADDLE or KEYBD), the targets (callsigns, words, groups or characters), audio through the Box or the browser, Farnsworth spacing, how many correct answers it takes to speed up (PLUS AFTER), how many misses to slow down (MINUS AFTER), and whether a missed target is repeated (REPEATS).

ℹ️ Paddle answers are scored exactly

With the Box connected, the game decodes exactly what you keyed — it never "rounds" your sending to the expected answer. A wrong character counts as wrong, just like in a real contest exchange. The decoder reads your keyer speed from the Box, so paddle copy is correct from the very first character.

Browser Support

Training, lessons, progress and browser audio work in any modern browser — desktop or mobile. For the optional OpenShack Box (sidetone and paddle keying) there are two ways to connect, chosen with the small dropdown in the top-right corner of every trainer and game — the same box link the Remote app and the Morse Chat use:

Box link	How it works	Where it works
USB · Web Serial	The Box is plugged into this computer; the browser talks to it over the USB cable.	Chrome, Edge or Opera on the desktop only — not Firefox or Safari, not phones
Network · Secure WSS	The Box is in Network mode and reachable over the internet; the browser connects through the DL2CC relay using your Box-to-Box pairing key — the same pairing the Remote app uses.	Any modern browser — phone, tablet or computer

ℹ️ Connecting the Box

Pick the link in the dropdown, then click Connect Box. For USB you choose the serial port once. For Network a key field appears next to the dropdown: enter the Box-to-Box pairing key configured on your Box. The key is kept for the current browser session; tick Remember to store it for future visits (untick to forget it again). After a successful connection the next visit reconnects automatically. Everything the trainers and games do with a Box — sidetone audio, paddle keying, the keying-timing analysis — works the same over both links. Switching to another trainer or game hands the Box over automatically. If paddle decoding in the games feels sluggish or characters split over a Network Box, adjust NET DECODE (ms) in the game's settings — lower is snappier, higher tolerates more network jitter (no effect on USB).

⚠️ No Box available?

Without a Box the tools switch to browser audio and keyboard input by themselves — everything except paddle keying works on any device.