

PCB Transmission Line
A simple board with a 50-ohm transmission line for observing waves and reflections under the oscilloscope.
- Size
- 200 × 100 mm
- Copper layers
- 2
- Thickness
- 0.89 mm
- Parts
- 7
- Nets
- 2
- Pads
- 16
- Tracks, vias
- 24, 729
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 16 Aug 2025
- Updated
- 24 Oct 2025
Overview
PCB Transmission Line is an open-source printed circuit board by marqueztronics, from the marqueztronics/PCB-Transmission-Line repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 2-layer board of 200 × 100 mm with 7 parts on 2 nets, routed with 24 tracks and 729 vias.
It is built around the KH-BNC50-3511. It belongs with the sensors and measurement boards of this library.
Main components
1README
README.mdPCB Transmission Line
A simple board with a 50-ohm transmission line for observing waves and reflections under the oscilloscope.
Board Images
Top View - 2D
Bottom View - 2D
Isometric
Top View - 3D Render
Bottom View - 3D
Parts
7| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad | H1, H2, H3, H4 |
| 3 | KH-BNC50-3511 | Marqueztronics:CONN_BNC_THT_RA_KH-BNC50-3511 | J1, J2, J3 |
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Questions
How big is the PCB Transmission Line PCB?
It measures 200 × 100 mm and has 2 copper layers, 0.89 mm thick.
What parts does the PCB Transmission Line use?
7 parts, built around the KH-BNC50-3511. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the PCB Transmission Line KiCad files?
From the marqueztronics/PCB-Transmission-Line repository on GitHub, at the commit this page was made from: the board is PCB Transmission Line.kicad_pcb and its schematic PCB Transmission Line.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PCB Transmission Line design in my own project?
Its repository publishes it under the CERN-OHL-P-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).