PC Utilities

Chapter 4

horizon to directly overhead, respectively. The azimuth is mapped on a compass relative to true North. The colored rings indicate the lowest elevation cut-off angles at which satellites are

tracked and can be changed or viewed via the button.

Each of the satellites being tracked are represented with icons according to their satellite system as follows:

Circular for GPS

Square for GLONASS

Hexagon for SBAS

There are also information icons and values at the bottom of the window:

The number of GPS/GLONASS satellites used in the solution verses the number being tracked. For example, 0/5 next to the Russian flag means that while the receiver is tracking 5 GLONASS satellites, none are currently used in the position solution.

Satellite PRN number Azimuth and elevation angle values

Signal to Noise Ratio (SNR) value and indicator

The PRN of the satellite is displayed on the icon and color-coding is used to indicate the status of the satellite or the tracking channel. Click on a satellite to display information on that satellite.

When a valid position has been achieved, dilution of precision (DOP) values can be viewed in the DOP window.

Open this window by selecting Constellation Window from the View menu or by clicking its button in the Window Toolbar.

Channel Tracking Status Window: The Channel Tracking Status window displays key information for each of the receiver's processing channels, including the PRN of the satellite being tracked by that channel, the Signal to Noise Ratio, Pseudorange measurements, Doppler values, Residuals measurements and Lock Time from the satellite.

The TRACKSTAT log provides the data for many of the fields listed in this window. The number of channels displayed depends on the model of your receiver and the bars are color-keyed to indi- cate the frequency type on the channel.

Open these windows by selecting Tracking Status Window GPS/GLONASS from the View menu or by selecting the American and Russian flag buttons in the Window Tool- bar.

Position Window: The Position window displays:

The receiver's latitude, longitude and height

The Solution Type, also known as Position Type

The solution or differential age (number of seconds the current solution has been

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Novatel SMART-AG user manual PC Utilities Chapter