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GPS satellites - number in view, used and SNR

Number of satellites visible
RasPi-3, U-blox 6M, downstairs
25 mm patch, south-facing corner
Potentially visible
Actually used
RasPi-8, u-blox MAX-M8Q, upstairs
Patch antenna, south-facing window
Potentially visible
Actually used
RasPi-9, u-blox MAX-M8Q, upstairs
Patch antenna, south-facing window
Potentially visible
Actually used
RasPi-10, u-blox MAX-M8Q, upstairs
Mag mount patch antenna, room interior
Potentially visible
Actually used
RasPi-11, u-blox MAX-M7Q, upstairs
Patch antenna, south-facing window
Potentially visible
Actually used
RasPi-12, u-blox MAX-M8Q, upstairs
Patch antenna, south-facing window
Potentially visible
Actually used
RasPi-13, u-blox MAX-M8Q, upstairs
Patch antenna, unheated cupboard, north wall
Potentially visible
Actually used
RasPi-15, u-blox MAX-M8Q, upstairs
Patch antenna, interior, south-facing room
Potentially visible
Actually used

Average SNR
RasPi-3, U-blox 6M, downstairs
25 mm patch, south-facing corner
GPS SNR average
RasPi-8, u-blox MAX-M8Q, upstairs
Patch antenna, south-facing window
GPS SNR average
RasPi-9, u-blox MAX-M8Q, upstairs
Patch antenna, south-facing window
GPS SNR average
RasPi-10, u-blox MAX-M8Q, upstairs
Mag mount patch antenna, room interior
GPS SNR average
RasPi-11, u-blox MAX-M7Q, upstairs
Patch antenna, south-facing window
GPS SNR average
RasPi-12, u-blox MAX-M8Q, upstairs
Patch antenna, south-facing window
GPS SNR average
RasPi-13, u-blox MAX-M8Q, upstairs
Patch antenna, unheated cupboard, north wall
GPS SNR average
RasPi-15, u-blox MAX-M8Q, upstairs
Patch antenna, interior, south-facing room
GPS SNR average

Per-PC GPS data is here, and timekeeping graphs may be seen here.
 

Other periods: day week month year

How were these plots generated?

Using the Raspberry Pi as a Wi-Fi Plane Plotter server
Installing and configuring the Raspberry Pi
Using the Raspberry Pi as a stratum-1 NTP server

 
Copyright © David Taylor  Edinburgh SatSignal home page Last modified: 2017 May 27 at 01:18:42