radio: Opa's update - Haagse ronde on scanner 1-3, QO-100 net (weekend reminder), antenna tip

- data (scripts/radio-2026-10-27-opa.sql): 145.450 in bank 1 ch 3 (ISS APRS UHF moved to ch 7),
  NL/EN notes for the Haagse ronde (scanner, not the WebSDR: trolls), new QO-100 satellietronde
  (daily 09:30, 10489.700 USB) with its reminder on Sat/Sun only
- migration: radio.nets.remind_days (null = every day of the net); scripts/radio.ts honours it,
  and `upcoming [hours]` prints the day too
- links: BATC/Goonhilly QO-100 WebSDR (via Opa, 27 Oct 2026); PI1DFT note about trolls
- Radioweetjes: Haagse ronde on the scanner, QO-100 net, magnetic antenna on a radiator

scripts/radio.ts

@@ -5,7 +5,7 @@
  *                                 passes over Gouda into radio.iss_passes (daily timer)
  *   bun scripts/radio.ts remind   ntfy reminder 10 minutes before each net (remind = true) and
  *                                 each ISS pass with max elevation >= 10 deg (every-minute timer)
- *   bun scripts/radio.ts upcoming print what the next 24 h of reminders would be (no sending)
+ *   bun scripts/radio.ts upcoming [hours]  print the reminders due in the next 24 h (no sending)
  *
  * Reminders go to RADIO_NTFY_URL (an ntfy topic URL, optional RADIO_NTFY_TOKEN), passed in with
  * `docker exec --env-file ~/.config/radio.env`. radio.reminders makes every reminder fire once.
@@ -19,6 +19,7 @@ import {
 	QUIET_HOURS,
 	REMIND_MINUTES,
 	compass,
+	fmtDay,
 	fmtTime,
 	formatFreq,
 	inQuiet,
@@ -197,15 +198,21 @@ type Due = {
 	tags: string[];
 };
 
+/** The net's days that get a reminder: remind_days (when set) narrows the schedule. */
+function remindDays(days: unknown[], only: unknown[] | null): number[] {
+	const all = days.map(Number);
+	return only ? all.filter((d) => only.map(Number).includes(d)) : all;
+}
+
 async function due(from: Date, to: Date): Promise<Due[]> {
 	const out: Due[] = [];
-	const nets = await sql`SELECT n.id, n.name, n.days, n.times, n.active, n.notes,
+	const nets = await sql`SELECT n.id, n.name, n.days, n.remind_days, n.times, n.active, n.notes,
 			f.freq_hz::float8 AS hz, f.mode, f.marine_ch
 		FROM radio.nets n LEFT JOIN radio.frequencies f ON f.id = n.frequency_id
 		WHERE n.remind AND n.active`;
 	for (const n of nets) {
 		for (const at of occurrences(
-			{ id: n.id, days: n.days.map(Number), times: n.times },
+			{ id: n.id, days: remindDays(n.days, n.remind_days), times: n.times },
 			from,
 			to
 		)) {
@@ -264,10 +271,11 @@ try {
 	else if (mode === 'remind') await remind();
 	else if (mode === 'upcoming') {
 		const now = new Date();
+		const hours = Number(process.argv[3] ?? 24);
 		console.log(`quiet hours: ${QUIET?.label ?? 'off'} (Europe/Amsterdam, by send time)`);
-		for (const r of await due(now, new Date(now.getTime() + 86_400_000)))
+		for (const r of await due(now, new Date(now.getTime() + hours * 3_600_000)))
 			console.log(
-				`${quiet(r.at) ? 'QUIET-SKIP' : 'SEND      '} at ${fmtTime(sendAt(r.at))}  ${r.kind}: ${r.title}`
+				`${quiet(r.at) ? 'QUIET-SKIP' : 'SEND      '} at ${fmtDay(sendAt(r.at))} ${fmtTime(sendAt(r.at))}  ${r.kind}: ${r.title}`
 			);
 	} else throw new Error(`unknown mode ${mode} (iss | remind | upcoming)`);
 } finally {