Morse code listening practice for ear copy
Hit Play, hear a group, type it before the next one. This page is copy-focused — no Koch unlock ladder unless you jump back to the trainer. Misses stack locally so you can drill the letters that actually bite.
When to use
Warming up before a longer trainer session; drilling a letter or digit pool; practicing head-copy tempo without sending; reviewing a miss list after a hard set.
When not
If you need structured character unlocks, use the trainer. If you want to send, use the keyer. If you only need one conversion, use the translator.
Assumptions
Letter pool by default, adjustable group length, Char WPM and Farnsworth. Audio still needs a user gesture to start. Scoring is case-insensitive against the expected group.
Examples
Input
Pool A–Z · groups of 5 · Farnsworth gaps
Result
Type five letters per burst
Input
Hide characters while you copy
Result
Forces ear copy instead of reading a cheat sheet
Input
Digits-focused groups of 3 · 18 WPM
Result
Warm up contest-style number groups
Digits live on the punctuation chart if you need a visual peek between drills.
How it works
- Engine picks random groups from your pool and schedules tones via the shared timing table.
- You type what you heard; compare case-insensitively to the expected string.
- Misses can stack locally so you know which letters keep biting.
- Hide characters when you notice yourself reading instead of listening.
Random groups from pool · tones @ Char WPM · gaps toward Farnsworth WPM · local miss list
Gotchas
- Looking at an on-screen Morse chart while “listening” trains your eyes, not your ears.
- Equal letter frequency in drills ≠ on-air English letter frequency — fine for skill, weird for ego.
- Headphones help; laptop speakers in a noisy room fake “I can’t hear the difference.”
- Prosign-focused grading belongs on the prosigns page — this pool is letters/digits style practice.
Compare
How to use a listening session
- Hide on-screen characters if you catch yourself reading instead of hearing.
- Start with shorter groups; lengthen only when accuracy is boringly high.
- Use headphones in noisy rooms — laptop speakers lie about “I can’t tell dit from dah.”
- Misses are the curriculum: drill the letters that bite, not the ones you already own.
What this page is not
It is not a Koch unlock ladder (that’s the trainer). It is not a sending coach (that’s the keyer). It will not record your mic or grade you for a license exam.
Pool ideas
Letters only for head-copy tempo. Digits when you want contest-style groups. Mix carefully — equal random frequency is great for skill and weird for “I should know E more than Z” ego.
Common questions
Direct answers — no synonym padding.
Related tools
Practice tool only — not a license exam, not emergency training certification. See Methodology and Terms.