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CW Decoder

KB2UKA edited this page Jun 13, 2026 · 1 revision

CW Decoder

The CW Decoder (added in v0.9.0) reads received Morse code and turns it into on-screen text in real time, decoded from the radio's live audio. It's a receive aid — for sending CW, see the CW Keyer.

Add it from Add Panel → Tools (the Telegraph Console / CW Decoder panel).

Using it

  1. Tune in a CW signal and set your filter/pitch as usual.
  2. Open the CW Decoder panel — decoded text streams in as the signal is received.

The decode runs on the backend from the live audio stream, so the text keeps flowing without any browser-side audio plumbing.

Telegraph Console

The CW panel was redesigned into a Telegraph Console in this release: a cleaner layout whose settings now persist across restarts, with a proper host-side sidetone monitor so you hear your own keying. On the Hermes-Lite 2, the on-board iambic keyer can be configured directly from Zeus.

Tips

  • Decoding works best on a clean, well-tuned signal with the filter snug around the tone — heavy QRM/QRN or off-pitch signals reduce accuracy.
  • Pair it with the Bandwidth & Filters controls to isolate the signal you want to read.

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