Ok thanks. Is there an app to measure HDOP?There are a couple of subjects that keep popping up by the newcomers. There is and has always been the misconception that the most important factor describing a GPS link is how many satellites were acquired in the initial search. Another preoccupation dwells around how quickly they are found. There are many informative discussions on this topic and if you are so inclined I implore you to search them out. I'm going to provide some very basic information to help this thread along. 1. The OEM Rev A and Rev B modules are a class M7n GPS which can only access 3 of the 4 available geosystems. The mRo, Here, and many others are of the M8n class and along with enhanced processing adds the fourth geosystem to the other 3. There's more as it applies to the difference between the A/B versions and the many varieties of after market GPS modules. 2. I feel compelled to put this in caps. The NUMBER of available SATs has very little bearing on the QUALITY of the link. HDOP is a measure of quality. Simply stated; the higher the QUALITY the better the RELIABILITY of the link. I want add detail but that washes out the less technically inclined so I'll leave it at that and let others fill in the gaps.
A post from Michael Lione from 3dr owners group, not from me.
The Solo app does it for you, had You read the manual.Ok thanks. Is there an app to measure HDOP?
Ok. What does HDOP stand for?Don't fly solo in anything higher than a 2.7 HDOP
Ok thanks[emoji3]HDOP – horizontal dilution of precision. Therefore the lower the number, the better accuracy of your location. Here is a link that gives you a chart of what the range of values mean.
Dilution of precision (navigation) - Wikipedia
Great summary for the newcomers. I would elaborate that higher quality HDOP does not mean a higher number but greater strength which really equates to 0 to 2. At least for general purposes without reading further.There are a couple of subjects that keep popping up by the newcomers. There is and has always been the misconception that the most important factor describing a GPS link is how many satellites were acquired in the initial search. Another preoccupation dwells around how quickly they are found. There are many informative discussions on this topic and if you are so inclined I implore you to search them out. I'm going to provide some very basic information to help this thread along. 1. The OEM Rev A and Rev B modules are a class M7n GPS which can only access 3 of the 4 available geosystems. The mRo, Here, and many others are of the M8n class and along with enhanced processing adds the fourth geosystem to the other 3. There's more as it applies to the difference between the A/B versions and the many varieties of after market GPS modules. 2. I feel compelled to put this in caps. The NUMBER of available SATs has very little bearing on the QUALITY of the link. HDOP is a measure of quality. Simply stated; the higher the QUALITY the better the RELIABILITY of the link. I want add detail but that washes out the less technically inclined so I'll leave it at that and let others fill in the gaps.
A post from Michael Lione from 3dr owners group, not from me.
What number of satellites is optimal for fast gps lock and great performance? I know more is better but what is a good number?
Nope.Thanks for all of the info guys. Is there a way to figure out how many feet you are off by using you HDOP value? (I.E. 0.1 HDOP= 3 inches)
Hdop is also measuring magnetic storms in space around the earth.
The stronger the storm, the higher the hdop will be.
You're thinking of K-Index.Hdop is also measuring magnetic storms in space around the earth.
The stronger the storm, the higher the hdop will be.
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