VK Amateur Band Viewer (v11.1)

Now with current ACMA allocations pre-filled

• data/bands_with_classes.json is populated from ACMA Radiocommunications (Amateur Stations) Class Licence 2023, Schedule 2 (Tables A–C).
• Class differences, power notes (pX/pY), and bandwidth/PSD limits are embedded per-table.
• Stronger colour palette for segments (accessible).

Sources

• ACMA: Radiocommunications (Amateur Stations) Class Licence 2023 (as made 12 Dec 2023; commenced 19 Feb 2024), Schedule 2 (Tables A–C).
• ACMA: Amateur class licence landing page (context).

Tip: If you replace the dataset later, keep the same JSON shape.

Quick start

unzip vk_amateur_band_viewer_v11_1.zip
cd vk_amateur_band_viewer_v11_1/vk_amateur_band_viewer_v11
python3 -m venv .venv && source .venv/bin/activate
pip install flask
export FLASK_APP=app.py
flask run
# open http://127.0.0.1:5000/

Notes

• The Overview page shows “bands I can use” for a selected licence. Export CSV or print for the shack.
• The band detail shows your legal slice overlay and a mode bar. (Modes are illustrative for now; legal ranges are authoritative.)
• 3.4–3.6 GHz has additional geographic exclusions (see ACMA Schedule 3 and spectrum licences).

v11.2

• New: Optional band‑plan overlays (WIA / IARU‑R3). Use the “Band‑plan overlay” select on the main page.
• These overlays are advisory and do not alter legal ranges. For current legal privileges see ACMA Schedule 2.
• Overlay data lives at data/bandplan_overlays.json — edit or replace to suit your local club plan.

v11.3

• Expanded WIA overlays per band (HF, 6m, 2m, 70cm) using Australian Amateur Band Plans – updated September 2020.
• Includes WICEN, IBP beacon windows, FM calling/repeater segments, satellite segments, weak-signal windows and DX notes.
• Toggle via Band‑plan overlay: choose WIA (detailed) or IARU‑R3 (coarser).

v11.4

• New: Detailed WIA overlays for 23 cm (1240–1300 MHz) and 13 cm (2300–2302 & 2400–2450 MHz):
  • 23 cm: weak‑signal/EME & SSB calling near 1296, beacon window, sat uplinks 1260–1270, FM/DV/ATV usage bands.
  • 13 cm: narrowband window at 2300–2302, plus 2400–2450 with S‑band satellite downlinks and DATV/FM segments.
• Overlays are advisory; legal privileges remain per ACMA Schedule 2.

Screenshot

The app combines ACMA legal ranges with optional WIA/IARU-R3 advisory overlays. Here is a quick look at the band view and the overview grid:

Replace this file with your own capture anytime. The README will pick it up automatically.

v11.4.3

• If a band has only a single ALL segment in the dataset, the app now auto‑generates colourful mode segments from the chosen overlay (WIA/IARU‑R3).
• This restores the multi‑colour bar by default (uses WIA if you haven't chosen an overlay yet).
• Legal overlays and comparisons are unchanged.

v11.5

• New: Rich popups on hover/tap/focus for band segments and overlays.
• Shows the mode, frequency range, overlay source/category, and ACMA power/notes where applicable.
• Keyboard accessible (Tab to focus a slice); works on touch (tap to preview).

v11.5.3

• Segment hover is now first-class: coloured mode segments float above overlays (so your cursor hits them).
• Tooltip script waits for DOMContentLoaded, avoiding race conditions on slow machines.
• CSS ensures .seg is positioned and visible across themes.

v11.6

• Click‑to‑pin tooltips: click a coloured segment (or overlay) to pin. Click outside or press Esc to close.
• Copy range: when pinned, use the Copy range button, or press C to copy “title | start–end | notes” to clipboard.
• Keyboard friendly: Tab to a slice → Enter/Space to pin.