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GPS Radio System

GPS Radio System. The Duddon and Furness MRT Dave Binks (Brains) Stephe Cove (Pictures). Opening Screen – new file. Centred on last position in previous file No radios found No track marked. Move map centre. Hold down mouse, curser changes to hand, drag map to new location.

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GPS Radio System

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  1. GPS Radio System The Duddon and Furness MRT Dave Binks (Brains) Stephe Cove (Pictures)

  2. Opening Screen – new file Centred on last position in previous file No radios found No track marked

  3. Move map centre Hold down mouse, curser changes to hand, drag map to new location To move small distances: use arrow keys To move large distances: zoom out before dragging

  4. Map screen details radios choices tracks information

  5. Map screen – track in progress Centred on radio Mike 14 Other radios found Track marked is the only one in this map section

  6. Map screen – change track view Click to centre on another radio – the active set is green Langdale Phil in Ambleside Mike 5 PJ on White Combe

  7. Current position (multiple) No signal – last position Recorded track - point to point No signal - point to point Map screen – tracks in progress In contact In contact Out of contact

  8. Choices - zoom Click on the zoom icons – Zoom in to get more detail Zoom out to see more parties

  9. Show track Identify radio Show time Zoom to separate time points Choices – track display Location only

  10. Information Connection to internet is active – can see other teams operating Time Mode: Radio connected, Not connected, Replay mode Grid ref of curser position Updates as you scroll

  11. R in corner shows transmission is remote – over the Internet not directly through our base set Radio – signal strength Bars show signal strength at last transmission Greyed out radio had no connection to base over the last 10 minutes - Could be because of terrain or a duff battery – base may want to consider contacting other members of the party or use phone/pager contact for urgent message

  12. Base radio will poll all radios every 2 minutes. If poll keeps failing, after 10 mins radio goes grey. If poll succeeds, but GPS lock has failed, then GPS replaced by GPS Radio – ID, time and location Current GPS data: Radio ID – Mike 14 T Binks Time last contacted – 10:58:46 Time elapsed – 1m:12secs Last Grid Ref – SD 22041 88317 MM1 and MM2 will show as non-GPS radios Base and MM3 will not show at all (despite image above!)

  13. Radios with GPS mics • Need time to lock on to establish grid ref • Will show flashing icon if not locked on • Will show solid icon when locked on • Will lock on more quickly if recently used – because they hold data for satellite positions recently seen • If radio has not been used, take it out once a week until you get a lock to keep data valid

  14. Call out sequence • Computer always on at base so when pager goes: • Switch radio on as you leave home – press PTT to signal to base –non GPS radios not polled automatically • Once first radio is picked up, base starts looking for others • First person to base opens lid of laptop and checks that it is on

  15. Laptop display • Should show those members on their way who are in range – position for those with GPS, “left home” for those without • May already be cluttered by radios received over previous days – just ignore them (This will change so only radios seen in last 4 hours will be displayed. Other teams will be grouped) • Should pick up MM2 as it comes over the top of Grizebeck

  16. Allocating parties • GPS radio in every party • GPS radios for base managers to be allocated to Search Group Leaders – swap radios not mics • Check early on that GPS has locked on and is giving signal • If GPS not locking on – check mic is not blocked by body, buildings, trees etc – turn radio off and then on again and wait

  17. Taking Laptop to MM3 • Save current map – details later • Switch off laptop – one press and wait • Disconnect all connections and wires • Take to MM3 connect to radio lead and mouse • Switch on - one press and wait • Use on battery to avoid DC Converter noise – press button next to On to reduce power consumption

  18. Radios on the hills • GPS holders should check regularly that their radio is still locked on • Click PTT once to mark a significant position • At casualty site, keep radios on but turn the volume right down

  19. Saving map data 1 • At the end of a session save the data • Click File • Click Save As … • Should go to Maps folder • Name it as • Callout dd-mm-yy • Practice dd-mm-yy • Click Save • Close laptop lid 2 3 5 4

  20. DFMRT 2007

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