GPS module showdown - BN180, BN220, BN880, 7M, M8N, M8P

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Информация о GPS module showdown - BN180, BN220, BN880, 7M, M8N, M8P

Название	:	GPS module showdown - BN180, BN220, BN880, 7M, M8N, M8P
Продолжительность	:	29.54
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I’ve used the BN-880 quite a lot and really like it (especially for the price and availability), gets much better performance than the 7M in my experience especially with obstructions (although note that here in Brisbane, AU we get on average 10 more GNSS satellites visible with better DOPs than NZ) Although last year I bought a preproduction sample of the ublox 9 series which does 4 concurrent constellations which is crazy impressive, not sure if there’s any premade modules for it though and of course being export restricted buying them officially is a painbrbrAlso, you said your axis was 1/100,000th of a degree for lat/lng, how many decimal places are you recording and at what float precision? When I have to deal with high precision lat/lng data I almost always use integers for the decimal places and often to 9 places (1/1,000,000,000th of a degree) otherwise I find too many errors are introduced from the limitations of floating point numbers The gaps in your heatmaps and blocky line plots make me think you aren’t using the full resolution those modules can outputbrbrAlso, in case you didn’t know the Beitian modules use receivers from ublox, the BN-880 uses the M8030 which is what the M8 modules use
Comment from : WizardTim

I have the an220 gps, what more I need to buy for connect it to my FPV airplane?
Comment from : TNTv

Thanks So much
Comment from : Messing With Code

youtube/4ZyfKlNO6vA
Comment from : Piazo

can you test on these GPS module ATGM336H GT-U8, GT-U13, VK2828U7G5LF (i use vkel for autonomous drone, seem ok)
Comment from : w-maker

Thank you for such in depth analysis I always wondered and you answered every question I had
Comment from : 1Esteband

Thank you for good information It would be even better if you tested the same product two of each at same time
Comment from : 윤상 황

Thank you for taking the time to test all of this It is very helpful information
Comment from : Tim Vukman

The end part with them moving is useful to help visualise the accuracy performance I primarily run TBS M8 v1's now after having a ton of issues with M8N's losing battery charge and cold starting every time Also even with a good battery they would sometimes take a couple of minutes to fix home When I switched to the TBS M8 it finds a home fix in less than 30 seconds consistently It's also glonass only which I wonder if that helps when I read about gps jamming lol 🤔
Comment from : Change Agent

Also for geographic heat maps, consider using QGIS
Comment from : Ryan Thalman

You only need 4 satellites for a 3d lock Beyond 4 more satelittes it calculates all of the possible combinations and averages those to get the "real" value As another commenter mentioned, it is of more value to compare using the same set of satellite systems Or run a test on each set separately There will probably be disagreements between the glonass, gps and Galileo systems I also wonder if you system interprets or has any of the WAAS (wide angle augmentation system) corrections built in or interpreted (these generally get broadcast along with the signals to perform corrections brThe best way that i can put it would be more than 4 satellites means that if one satellite drops or you miss reception, you don't lose information and position (it's about redundancy)
Comment from : Ryan Thalman

Great testbrThanks for sharing your experience with all of us 👍😀
Comment from : Asger Vestbjerg

Shew you know your stuff
Comment from : Drone & Sundry

Make a surveyor your new best mate Their GPS stations are the dogs danglies
Comment from : Rob B VK6ES

I've had several BM180s die on me The still communicate via Tx/Rx, but are unable to get a lock And they heat up I've started to use 43V instead of 5V
Comment from : mike o

The discolouration on the BN220 antenna looks like simple oxidation of silver plating This will likely have no impact on the performance of the antenna
Comment from : Alex Scarbro