Use the check-in page without signal

Most trailheads have little or no signal. Set the page up once at home and it works there.

1. Open it once with signal. Go to tbradio.org/checkin before you leave. Your phone keeps the page, the trailheads and the latest conditions.
2. Add it to your Home Screen. iPhone: in Safari, tap Share, then Add to Home Screen. Android: in Chrome, tap the menu, then Add to Home screen.
3. At the trailhead, open it from your Home Screen. The trailheads and channels are there. Conditions are the last ones your phone saw, each with the time it was read.
4. Send your check-in as usual. With no signal it waits on your phone and sends by itself the next time you open the page with signal. It is never sent twice.