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Spirent KB Article
Doc ID: FAQ17167
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Positioning Application: Why does the RTCM PRC value not equal the difference between the Measured range and true range?
Environment/Versions
Positioning Application
RTCM enabled
PseudoRange Correction (PRC) value
Value displayed in RTCM window and reported in RTCM message
Answer
This will occur when there are declared corrections/errors reported in the GPS Navigation message
For example an Af0 clock correction will effect the Pseudorange (measured range) but will
NOT
alter the PRC value
This is because the RTCM message does not need to make the receiver aware of the clock correction, as it is reported in the GPS navigation message
On the contrary, an undeclared clock error or track error will effect with PRC value
Version
1.0
Publish Date
2016-01-18
Categories
Product : SimGEN,PosApp,RTCM
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