Entry level GPS Stratum 1 NTP Server

Thought this device would be useful for anyone thinking of joining the NTP Pool on a budget. It allows someone to learn about Stratum 1 NTP time serving, without making a large commitment on hardware or software configuration setup.

It could also be used to augment existing, which is what I am doing.

I am running several of these alongside my Leo NTP 1200s.

It features:

  • Standalone mainboard module powered by either PoE, or USB
  • GPS module with battery backup to hold ephemeral data for hot starts
  • Handles up to 5700 requests a second
  • Web GUI
  • Bad packet reject
  • Selectable Rate limiting
  • Selectable Request clicker
  • Selectable Hourly Time audio pulse
  • MQTT stats (update configurable from GUI) providing tons of data including:
    • requests served total
    • requests per second
    • rejected requests total
    • rejected request per second.
  • 12 onboard LEDs showing GPS lock on the three main constellations
  • 1 LED synced to PPS
  • Innovative design using data / multicore cable instead of RF RG174 cable to antenna and timing adjustment for cable length
  • Low Latency mode capable of achieving around 100 microseconds latency.
  • Dual stack IPv4 (DHCP or Static) and IPv6 (SLAAC or Static)
  • OTA firmware updates being continuously updated.
  • All opensource with Docs and code available on the web

I have been using them for the last three weeks, and they have been rock-solid, so I thought I would share my discovery with anyone interested in joining the pool on a budget.

If anyone wants to ask questions, please feel free to do so. Alternatively, the maker responds pretty-quickly to queries and questions.

I must admit I am very impressed with its performance; especially for something costing around $100 dollars…..!

Lniks:

Hardware

Code and Docs

It it quite expensive for compared to the NTP-220

The NTP-220 is far better.

Nothing needed, and it’s just 194 USD.