60Using the GPS FunctionMethod of Positioning by GPSAbout Positioning by GPS“Positioning” refers to calculation of your current position from the satellite orbitinformation and radio propagation time. At least three satellites need to be capturedfor successful positioning. If positioning fails, move away from buildings as far aspossible and stand in an area with open sky. About errorsA positioning error by several hundred meters can occur due to the environmentalconditions. Under favorable conditions, positioning can be performed successfullyusing only three satellites. However, under the following poor conditions, thepositioning accuracy can decrease or positioning can fail.- Between high-rise buildings- On a narrow road between buildings- In a room or behind a building- Under high-voltage cable or overpass- Between trees such as in the woods- In a tunnel or underground- Usage behind heat reflective glass- Places with strong magnetic fields When using the GPS function for the first time todayWhen you use the GPS function for the first time after purchase of the FT1DR ortoday, a few minutes are required to search for satellites. Also, when using the GPSfunction after turning off the FT1DR for several hours, a few minutes are required tosearch for satellites.
