iGage iG4, Руководство пользователя

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If you plug a USB-to-serial port adapter into your computer after starting the download tool, press
the refresh button:
the program should find the newly installed port. (Only ports in the range 1 through 32 are
detected.)
Click on the 'Read GPS' button:
The configuration tool will interrogate the GPS receiver and display the 'Receiver Type', the
'Receiver ID' (the Serial Number), the GPS 'Firmware Revision' and the 'Device PN'.
The current values for 'Auto Sessioning', 'Recording Interval' and 'Elevation Mask' will also be shown
and can be edited.
To return to the factory defaults:
'Auto Sessioning' None
'Recording Interval' 5-seconds
'Elevation Mask'
0 degrees
Press the 'Set Defaults' button:
Or you can change the settings as required for your application. When you have made your
selections, click on the ‘Update GPS’ button to send the changes to the GPS receiver.
Additional details for each of these settings follow.
Recording Interval
The recording interval defaults to 5-seconds on the iG3. Additional recording rates are also available:
1 second, 2 seconds, 3 seconds...59 seconds
1 minute, 2 minutes, 3 minutes…190 minutes
2 Hz
, 5 Hz
The default interval (5-seconds) allows for files to safely contain over 7-days of continuous
observations.
If you intend to use the observation files with OPUS you must use one of these recording intervals:
1, 2, 3, 5, 10, 15 or 30 seconds
Auto Sessioning
The default 'Auto Sessioning' setting is 'NONE.’ Some applications may benefit from having the
receiver automatically close files after a preset period.
‘Auto Sessioning’ only closes the current file. A new file is not automatically opened.
Elevation Mask
The default setting for ‘Elevation Mask’ is 0 degrees. All visible satellites are tracked.
OPUS automatically ignores satellites lower than 10-degrees.
There is a benefit to having the receiver track satellites for as long as possible as they rise to 10-
degrees. (We don’t want to start tracking at the exact moment that OPUS begins to use the
satellite.)
The internal memory of the receiver is huge. There probably is no advantage to raising the tracking
elevation for any application and it is recommended that you keep the tracking angle set to the
default 0-value unless you have a really good reason to change it.