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README: document on-radio channel add/delete; fix stale dim/7-seg notes

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Add a 'Managing channels on the radio' section and a feature bullet for channel
create/delete. Update the screen-dim levels (now includes 15%) and drop the
'faintly-lit inactive segments' note (inactive 7-seg segments are now off).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Marcus Kida 2026-07-10 12:48:55 +02:00
parent a8c2038552
commit 73d40374e7
1 changed files with 22 additions and 3 deletions
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README.md
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@ -28,16 +28,35 @@ FreeTRX keeps OpenGD77's core (DMR/FM, hotspot, CPS compatibility) and adds:
TX talkgroup to the incoming one. TX talkgroup to the incoming one.
- **Segmented block S-meter** with one block per S-level (S1–S9 green, S9+ red) - **Segmented block S-meter** with one block per S-level (S1–S9 green, S9+ red)
and a scale label row (S1 S3 S5 S7 S9 / +20 +40 +60). and a scale label row (S1 S3 S5 S7 S9 / +20 +40 +60).
- **7-segment "LED" frequency font** with faintly-lit inactive segments, on the - **7-segment "LED" frequency font** on the VFO and the SK1-held frequency view.
VFO and the SK1-held frequency view. - **Screen dimming** — optionally dim the backlight to 100 / 50 / 30 / 15 % after
- **Screen dimming** — optionally dim the backlight to 100 / 50 / 30 % after
inactivity (Auto backlight mode); new setting in Display Options. inactivity (Auto backlight mode); new setting in Display Options.
- **On-radio channel management** — create and delete channels directly from the
Channel quick menu, no PC/CPS required (see [Managing channels](#managing-channels-on-the-radio)).
- **Main-menu icons** next to each top-level entry. - **Main-menu icons** next to each top-level entry.
- **DMR reliability fix** — resolves a hard-fault (freeze needing a battery pull) - **DMR reliability fix** — resolves a hard-fault (freeze needing a battery pull)
on the DMR path that affected recent self-built OpenGD77 revisions. on the DMR path that affected recent self-built OpenGD77 revisions.
See [`CHANGELOG.md`](CHANGELOG.md) for the complete list. See [`CHANGELOG.md`](CHANGELOG.md) for the complete list.
## Managing channels on the radio
FreeTRX can create and delete channels without a PC. Both actions live in the
**Channel quick menu** — from the Channel screen, press the **top (orange)
button** to open it, then scroll to the bottom:
- **New channel** — creates a blank **145.500 MHz FM** channel in the first free
slot, adds it to the current zone, and opens **Channel Details** so you can set
the name, frequency, tones, and so on. Press the **green** key to save. The new
channel is immediately selectable in the zone (no need to re-enter it).
- **Delete Channel** — deletes the currently-selected channel after a
confirmation (**green** confirms, **red** cancels). It is also scrubbed from
every zone that referenced it. The last remaining channel cannot be deleted,
and channels locked read-only (e.g. APRS) are protected.
> **Back up your codeplug** (via the CPS) before making bulk edits — these changes
> are written straight to the radio and there is no on-device undo.
## Supported radios ## Supported radios
This first iteration is developed for and **tested only on the TYT MD-UV380 and This first iteration is developed for and **tested only on the TYT MD-UV380 and