GPS can you measure the course? Which is more accurate than the compass course?GPS can also measure the flow rate and flow? The log is how to measure the velocity and direction? Which precise? Whichever shall prevail?GPS how to measure the air pressure difference?GPS how to measure the magnetic difference? How to measure the day no time? How do you get it? Accurate?
GPS measurement of a lot of Tianbao SPS series, support for dual antenna, a positioning, a directional. The flow rate and the flow direction are strictly impossible to measure, but can be loaded into other devices. I don't know what you mean, I don't know. It should mean the magnetic declination, cannot be obtained by GPS specific value can be calculated by the relative position of multiple, eliminate the influence of magnetic declination.
GPS measurement of a lot of Tianbao SPS series, support for dual antenna, a positioning, a directional. The flow rate and the flow direction are strictly impossible to measure, but can be loaded into other devices. I don't know what you mean, I don't know. It should mean the magnetic declination, cannot be obtained by GPS specific value can be calculated by the relative position of multiple, eliminate the influence of magnetic declination.
GPS can be used to measure the course of the trackThe velocity and direction is log input.Calculation of air pressure differenceMagnetic difference not know
