| Linux systems - x86 compact PC | 
  
    |  | PC Pixie x86 Intel Atom PC - 1 GB
 Wheezy #1 3.2.81-1 [32-bit]
 PPS from Garmin GPS 18 LVC
 Clock & System jitter
 
 | 
    Linux systems - Raspberry Pi cards
 | 
    |  | Raspberry Pi #1 Raspberry Pi 2B, 512 MB
 Wheezy 4.0.7+ #801 [32-bit]
 PPS from GPS module
 Clock & System jitter
 
 | 
  
    |  | Raspberry Pi #12 Raspberry Pi 3B, 1 GB
 Buster 4.19.118-v7+ #1311 [32-bit]
 PPS from GPS module
 Clock & System jitter
 
 | 
  
    |  | Raspberry Pi #13 Raspberry Pi 3B, 1 GB
 Stretch 4.19.66-v7+ #1253 [32-bit]
 PPS from GPS module
 Clock & System jitter
 
 | 
  
    |  | Raspberry Pi #22 Raspberry Pi 4B, 4 GB
 Buster 4.19.97-v71+ #1294 [32-bit]
 PPS from GPS module
 Clock & System jitter
 
 | 
  
    |  | Raspberry Pi #23 Raspberry Pi 4B, 4 GB
 Buster 5.4.42-v8+ #1319 [64bit]
 PPS from GPS module
 Clock & System jitter
 
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    | Windows systems
 | 
  
    |  | Kiruna Windows-10/64 PC
 Intel i7-4770K 16 GB, 3.50 GHz
 PPS over motherboard COM port
 Clock & System jitter
 
 | 
  
    |  | Lund Windows-10/64 PC
 Intel i5-6400 16 GB, 2.70 GHz
 PPS over add-in COM port
 Clock & System jitter
 
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    | LAN connected systems
 | 
  
    |  | Alta Windows-10/64 PC
 Intel i5 760 8 GB, 2.80 GHz
 [PPS m/b COM port - broken]
 Clock & System jitter
 
 | 
  
    |  | Harstad Windows-10/64 PC
 Intel i5-4460 8 GB, 3.20 GHz
 Sync over  house LAN
 [PPS add-in COM port - broken]
 Clock & System jitter
 
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    |  | Penguin Windows-10/64 PC
 Intel i5-8400 32 GB, 2.8 GHz
 Sync over house LAN
 Clock & System jitter
 
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    | Wi-Fi connected systems
 | 
  
    |  | Floro Windows-10/64 laptop
 Intel i7-8565U 1.80 GHz 16 GB
 NTP over 5 GHz Wi-Fi
 Clock & System jitter
 
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    |  | Raspberry Pi #20 Raspberry Pi Zero W, 512 MB
 Buster 4.19.97+ #1294
 NTP over 2.4 GHz Wi-Fi
 Clock & System jitter
 
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