ECOPROBE 5 - rs dynamics

5. After completing the measurement, the Measuring Mode Menu will disappear and Welcome GPS Menu
(Window W.16) is displayed. Use the option Show data to review the measured values or Measure for
measuring the next station.
6. Move to the next station and allow the GPS system to stabilize. Generally one minute is enough for all
stations, except for the first station where more time is required. Observe the changing number of satellites
and if it does not increase, start measuring the station.
To achieve good accuracy, the GPS receiver needs to access seven or eight satellites. The lower the number
of visible satellites the accurate are the calculated coordinates. The accuracy is also affected by the position
of the satellites during the day. Six or seven satellites in good positions may give better accuracy than eight
satellites which are relatively distant or poorly visible.
The interferences and reflections of the satellite signals in streets, forests and among tall buildings may cause
insufficient accuracy of measured coordinates. Satellites are also shielded by the trees and buildings. If there
are less than three to four satellites visible, the receiver cannot collect sufficient information. ECOPROBE 5
does not allow measuring and it starts “beeping”. In this way the instrument prevents inaccurate data from
being stored in the memory. Press any arrowed button to stop the “beep” and return to the “Welcome GPS
menu”. If the GPS signal is still insufficient, it is possible to continue the survey by using a locality opened in
the “Standard Grid”. Return to the GPS locality when more than four satellites are visible.
It is recommended to use a long rod for the GPS receivers when measuring in wooded areas. The GPS
receiver is placed on the top of the rod to get the best possible signal using an antenna extension cable
provided by RS DYNAMICS Ltd.
If the survey of a particular site is stopped and continued after any period of time, always allow the GPS
system to stabilize at the first new station. After switching the system on, monitor the number of satellites and
if after about five minutes it coincides, continue measuring the station at any new position. The coordinates of
the original station measured first, are safely kept in the instrument memory and coordinates of all other
stations are related to it.
HINT:
MEASUREMENT - GPS LOGGING
You can easily return to any station of the surveyed locality after any period of time. Switch on
ECOPROBE 5, open the “Welcome GPS Menu” of the given locality and observe the changing surface
coordinates on the screen. They can navigate you to any measured station you want to review, or to a new
position.
If the locality is stored only in your computer and you want to continue the survey later, it is possible to
transfer the locality data back to the instrument using the ECOPROBE_VIEW software, maintaining all the
configuration and position data.
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