ssed binary protocol. You can still change between NMEA and Binary protocol with standard MTK messages, and switch the refresh rate between 1hz to 10hz, or set any standard serial baud rate (by default is set to 38400 bps and custom binary protocol)." As I pointed out earlier, no documentation exists for this "exclusive" firmware with regard to the format of the "very compressed binary protocol." I'm curious how a small store like DIYDrones got the manufacturer to code an "exclusive" firmware version for them. Normally, it would require a very large quantity commitment on the part of the purchaser. Being somewhat cautious when it comes to certain kinds of claims, I'm curious to find out more about the "exclusive" nature of the firmware, who coded it (since it's probably not based on a RISC chip that DIY folks are familiar with, nor would they have the capability of producing a mask for it), and its origins. At this time, I have trepidation toward making purchases from the store. Some honest and open communication regarding these things will help change my mind (but please, folks... no speculation... we have enough of that already).…