# Build a Low-Cost Stratum 1 PTP Grandmaster Clock

A new guide shows how to build a Precision Time Protocol (PTP) grandmaster clock on a budget, achieving Stratum 1 accuracy without expensive hardware. The project uses accessible components and open-source tools, making high-precision network time synchronization feasible for hobbyists and small labs. This matters because precise timing is critical for financial trading, data centers, and distributed systems, and cheaper options broaden access to it.

**Importance:** 2/5

## Sources

### Technology
- [Hacker News](https://opscode.io/posts/ptp-grandmaster-cm4-sr1723u10/) — Thu, 13 Aug 2026 14:08:44 +0000