Leica Geosystems GPS System 500 - Technical Reference Manual - Manual (Page 172)

172 7. Measuring with System 500 Technical Reference Manual-4.0.0en
As soon as this key is pressed the
moving part of the chain will begin
and observations recorded at the
predefined rate. You may move along
the course you wish to record.
When carrying out a post-processed
kinematic survey where a static
initialization has been performed, the
Receiver will automatically monitor
the number of satellites tracked. If at
any time this number falls below 4,
observation recording will stop and a
message will show on the screen
informing you that the satellite count
has fallen below 4 and you must
reinitialize. You must then perform the
static initialization again.
Measuring with Static Initialization
without starting time
If you have selected to perform a
static initialization, press OCUPY (F1)
as soon as you are ready. The static
initialization will begin. The Receiver
needs to be kept perfectly steady
during this time. For this reason, it is
advised to use a quickstand or to
mount the sensor on a tripod for the
initialization period.
The initialization may be thought of as
a Rapid Static point. You will need to
measure for several minutes, the
exact time being determined by the
baseline length (distance between
rover and reference). The exact time
required may be shown using the
Stop and Go Indicator.
You may configure this to be shown in
the Main Survey panel and may also
access it through the STATUS key.
The moving part of the chain will not
begin until you have completed the
initialization and pressed STOP (F1).
The exact measuring procedure
varies depending upon which
Receiver you are using and the
Configuration Set.
When using an SR510, you must
perform a Static Initialization before
commencing the moving part of the
survey. The option to do this is
activated in the Configuration Set.
When using a SR520 or SR530, you
may also perform a Static Initialization
if required although there is not
strictly any need to do so. When
using the SR520 and SR530, the
normal way to work will be to initialize
on the fly. No Static Initialization is
then required.
7.2.6 Measuring Procedure