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dl9rdz edited this page Feb 17, 2021 · 28 revisions

Welcome to the rdzwx-go wiki!

Basic usage:

  • tap ⌖ for prediction (start: last RX)
    hold ⌖ to show/hide prediction parameters
  • tap [i] to switch between show RX info / direction / hide
  • tap ▣ to zoom to [GPS pos + last RX + prediction]
  • hold for context menu
    (prediction / zoom / external map / delete)
  • tap for landing point info
    hold for context menu (zoom / external map)
  • hold for context menu (zoom)
  • tap green ✔ for TTGO config web site
    (discovered using mDNS)
  • Back button will force exit of application;
  • App put in background with TTGO connection:
    will remain active (GPS, TTGO connection)
  • App put in background without TTGO connection:
    stop all activities
Direction display:
  • North is always on top
  • Red arrow points to sonde
  • black rectangle is phone orientation (compass)
  • small circle is walking direction from GPS
    yellow: current, gray: no direction info from GPS

Note:

  • Height on TTGO display is raw GPS ellipsoid height
    (as received from radiosonde).
  • The app transforms this into EGM96 geoid height
    (basically "height above mean sea level").
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