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What is the range of GPS module?
At any time, at most, 12 GPS satellites are visible in the sky to a GPS receiver. The satellites transmit information over a band of radio frequency which ranges from 1.1 to 1.5 GHz.
Does GPS use velocity?
Velocity. There is a common misconception that speed measured via GPS is done so as a function of position against time. Fortunately, velocity isn’t measured like this: instead, the Doppler shift in the signals coming from the satellites is captured and this leads to an incredibly accurate measurement of speed.
Why are there restrictions on the GPS modules?
The problem I have discovered is that GPS manufacturers are required to place a set of restrictions on GPS modules. The restrictions set a maximum speed and altitude at which the device should stop functioning. Basically, this limits someone’s ability to build a cruise missile.
Are there any limitations on speed and altitude for GLONASS?
I’m looking for some info about the possible limitations for the GLONASS navigation system, something similar to the GPS COCOM limits. Is there any limitation on speed AND/OR altitude for this navigation system? We are looking into embedding a GLONASS receiver into an high-altitude balloon project. Welcome to GIS.se!
Is it safe to use GPS on high altitude flights?
Devices targeting high altitude flights have been advised to avoid these GPS Modules. The u-blox ‘MAX’ gps modules correctly implement the CoCom limits. This correct implementation has been observed on many flights.
When to use GPS for high altitude rocketry?
There are several considerations when choosing a GPS for high altitude rocketry flights. The first is proper implementation of the CoCom limits . These regulations place a limit on GPS tracking devices that disables tracking when it determines that is is moving faster than 1,000 knots, and at an altitude higher than 18,000m.