Articles
Read articles and tutorials on hardware projects, self hosting and more.
A guide on how to setup subdomains with Caddy
A recent power outage caused bit flips in a Proxmox SSD, prompting the installation of an uninterruptible power supply (UPS) and supporting automations for graceful shutdowns during outages. A Debian VM acts as a Network UPS Tools (NUT) server, monitoring the UPS battery status. When the UPS switches to battery mode, Proxmox initiates its shutdown sequence, followed by TrueNAS. This hopefully mitigates future data corruption during unexpected outage events.
Some Snaps and Thoughts of Shenzhen
Snaps and Overview of Macau. It seemed like Hong Kong with more history.
A Painting Guide of the Tamiya 1/72 Scale Model of the Vaught F4U-1D Corsair
A Proxmox server build with a AMD Ryzen 5 5500 CPU and NVIDIA RTX5060-TI GPU
A TrueNAS Build to Backup my important documents
Curated Snaps from Seoul
Curated Snaps from Jeju
Curated Snaps from our week in Hong Kong
The Zadoff-Chu (ZC) sequence is a widely used preamble in RF communication systems, valued for its sharp correlation peak, constant amplitude, and periodic nature. This article explores its mathematical properties, performance under different parameters, and real-world applications, including robust frame detection in noisy environments. Experimental results with a Pluto SDR demonstrate the ZC sequence's effectiveness in identifying OFDM frame boundaries and recovering transmitted symbols reliably.