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Figure 115 – Configuring PDOP Mask on a GPS100
The allowable values for PDOP Mask are between 1 and 20. This number represents the Position Dilution of Precision, which indicates the accuracy of the computed position and is a function of the positions of the received satellites. If the PDOP of a given position solution is above the value of this parameter, then the GPS100 will report that no fix is obtained. Disabling the PDOP Mask by setting the value to
6.14.1.5SNR Mask
The DSM250 is capable of setting the SNR (Signal to Noise Ratio) Mask on a GPS100. You choose this setting by pressing the Enter key ( 
) with the GPS SNR Mask menu item selected which results in the screen shown in Figure 116.
Figure 116 – Configuring SNR Mask on a GPS100
The allowable values for the SNR Mask are between 1 dB and 60 dB. This number represents the signal to noise ratio of a satellite’s signal as received by the GPS100. Higher numbers indicate a
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