Hello! On the forums, disputes about what is better do not subside, dear Matek M8Q or inexpensive BN-220 \ BN880 or other Beitian.
I have these GPSs on two devices, on the wing of the ZOHD Dart 250G I installed the Matek M8Q, and on the quadcopter BN-220. And so I decided to find out what exactly I overpaid when buying the Matek M8Q. Happy viewing!
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Buy Matek M8Q-5883 on aliexpress
http://ali.pub/4t354c
or at banggood
https://bit.ly/2Ux04KS
BN-220 on aliexpress
http://got.by/4w53b9
or at banggood
https://bit.ly/3iEcwCQ
They say that the BN-280 works better. I have not personally checked
on aliexpress
http://got.by/4w53a3
at banggood
https://bit.ly/2BP0oyb