Translated by R.Whitehead 10-3-2014 (my best effort – accuracy is not guaranteed)
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6.6. Start and stop of the recording
The GPS-Logger 2 has several possibilities for starting data recording. The appropriate
options can be set with
our software “SM GPS-Konverter”, with the UniDisplay or via the Jeti
Duplex or HoTT telemetry.
Normally you should select one of the possible Startup options and also select Auto Stop. It
is then ensured that every flight is automatically recorded separately.
The recording of data can be started/stopped in the following way:
•
Manual start via telemetry
:
The recording is started and stopped in the Jeti Duplex or Graupner HoTT telemetry
(text mode) by depressing a key at the transmitter.
This start method functions even when any other start option is selected.
•
Automatic start with 3D-Fix
:
The recording begins automatically as soon as sufficient satellites are received and
an initial 3D position determination made (3D-fix).
•
Automatic start with speed > 20 km/h
:
The recording begins automatically as soon as the measured speed exceeds 20
km/h for the first time. The prerequisite is that the GPS already has a 3D-fix.
•
Automatic start at > 20 m distance:
The recording begins automatically as soon as the distance from the first measured
point after switching on exceeds 20 m . The prerequisite is that the GPS already has a
3D-fix.
•
Start by re-inserting the memory card
:
Regardless of the selected start option, a recording can be started immediately on an
active GPS-Logger 2 by pulling out and re-inserting the memory card.
•
Automatic stop after landing:
With the option
“Autostop landing” the recording ends automatically 10 seconds after
the landing, that is if for 10 seconds the speed is less than 10 km/h.
With each start of recording the GPS-Logger 2 begins a new file. The file names are
numbered consecutively and have the following format:
“
2014-01-01 SM GPS 2 Logdatei 0001.nmea
“
If a recording is started and the internal clock does not provide a valid date (no GPS
received or internal battery empty) then the date will be 2014-01-01
To distinguish between different firmware versions these files are always stored in a folder
with this format:
“
SM GPS-Logger 2 vX.XX
”
With Jeti Duplex and HoTT the recording can be stopped via telemetry, otherwise the
recording is
best terminated by the option “Auto-Stop”. The recording can also be stopped
simply by interruption of the supply current. That is intended and OK.
