Alta Harstad Kiruna Lund Oslo Penguin Stamsund RPi 1  3  4  5  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  28 29 Pixie Condor Drammen Floro Ystad Web srv
WAN Network Timekeeping CPU/mem  EUMETCast Europe  DVB-S2 Ecast I/O Losses HVS losses RAMdisk T1/T2 Air °C  ADS-B GPS DOP SNR NTP jitter  How-to

GPS satellites - number in view, used and SNR

Number of satellites visible and used
LeoNTP
Outdoor antenna
Satellites tracked
RasPi-3, U-blox MAX-M8Q-0-10, 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-10, u-blox MAX-M8Q, upstairs
Mag mount patch antenna, room interior
Potentially visible
Actually used
RasPi-12, u-blox MAX-M8Q, upstairs
Near CH radiator
Loft dome antenna
Potentially visible
Actually used
RasPi-18, u-blox MAX-M8Q-0-10, upstairs
Patch antenna, interior, south-facing room (inc. Galileo)
Potentially visible
Actually used
RasPi-22, u-blox MAX-M8Q-0-10, upstairs
Patch antenna, interior, south-facing room (inc. Galileo)
Potentially visible
Actually used
RasPi-23, VK2828U7G5LF GPS module, upstairs
In north-west facing cupboard
Potentially visible
Actually used

Average SNR
RasPi-3, U-blox MAX-M8Q-0-10, downstairs
25 mm patch, south-facing corner (inc. Galileo)
GPS SNR average
Raspberry Pi 1B
RasPi-8, u-blox MAX-M8Q, upstairs
Patch antenna, south-facing window
GPS SNR average
Raspberry Pi 3B
RasPi-10, u-blox MAX-M8Q, upstairs
Mag mount patch antenna, room interior
GPS SNR average
Raspberry Pi 2B
RasPi-12, u-blox MAX-M8Q, upstairs
Near CH radiator
Loft dome antenna
GPS SNR average
RaspberryPi 3B
RasPi-18, u-blox MAX-M8Q-0-10, upstairs
Patch antenna, interior, south-facing room (inc. Galileo)
GPS SNR average
Raspberry Pi 3B+
RasPi-22, u-blox MAX-M8Q-0-10, upstairs
Patch antenna, interior, south-facing room (inc. Galileo)
GPS SNR average
Raspberry Pi 4B
RasPi-23, VK2828U7G5LF GPS module, upstairs
In north-west facing cupboard
GPS SNR average
Raspberry Pi 4B

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: 2023 Oct 29 at 01:04:56