Spectra Precision Survey Pro v4.9 - Manual (Page 101)

Elapsed: Displays the time elapsed since this receiver was put into static mode, if a session is in progress. This field
only shows when your receiver times sessions counting up.
Free Memory: Displays the amount of memory remaining on the disk where post processing data is stored. This will
usually be the receiver’s built in memory or the receiver’s removable memory card. For some brands and models, this
may be disk space on the data collector.
HDOP: / VDOP: / Satellites Used: / Satellites Locked: See the Receiver card.
Sky View
The Sky View card displays a plot of the satellites tracked and the elevation mask boundary.
SV Used: / SV Lock: See the Receiver card.
Elev Mask: Displays the elevation mask currently set on the General card of the Receiver Settings screen.
Note: If the receiver setup has not yet been performed, the elevation mask will not be displayed. Also, if you have
changed the elevation mask setting, and have not yet reconfigured this receiver, the value you see on this display will
be the value from the settings, and not the value the receiver is currently using.
Sat Info
The Sat Info card displays signal quality information for the satellites used by the receiver, and allows you to disable
tracking specific satellites, which is useful if the receiver is tracking a ‘noisy’ satellite.
SNR Plot tab: This tab lists all the satellites that are in view and shows a bar graph that indicates the signal-to-noise
ratio. A longer bar indicates more noise, and a lower-quality signal.
USI: The universal identifier number of the satellite that you wish to disable or re-enable. For GPS satellites, this will
be the Pseudo Random Noise (PRN) number and will be between 1 and 37. For GLONASS satellites, this will be the
Frequency Channel Number (FCN) + 45, and will be between 45 and 70.
[Disable]: Disables the USI entered above. This satellite will then no longer be used in any solution until it is re-
enabled.
[Enable]: Re-enables the USI entered above.
[Enable All]: Enables all the satellites that were disabled.
The following buttons appear only if the connected instrument supports GLONASS:
[GLO On]: Enables all GLONASS satellites.
[GLO Off]: Disables all GLONASS satellites.
Note: Depending on the receiver brand and model, the behavior of [GLO On] [ GLO Off] and [Disable] [Enable]
varies. For example, with some receivers you can enable a single GLONASS satellite using [Enable] after you have
previously turned all GLONASS off, while with other receives, [Enable] will not affect GLONASS numbers if you
have turned GLONASS off.
SV List tab: This tab lists signal quality information for each satellite being used, which is reported by the receiver.
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