# Nanovna

NanoVNA is a handheld vector network analyzer with firmware maintained in a source repository.

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## Tuning in FM Radio on a 3D Printer Heatbed

DevFeed: [Tuning in FM Radio on a 3D Printer Heatbed](<https://devfeed.tech/articles/tuning-in-fm-radio-on-a-3d-printer-heatbed-10485.md>)

Original publisher: [Read original article](<https://www.jeffgeerling.com/blog/2026/tuning-in-fm-radio-on-a-3d-printer-heatbed/>)

Author: jeff@jeffgeerling.com (Jeff Geerling)

Published: 2026-05-28T14:00:00Z

Content type: opinion

Language: en

Sources: [Jeff Geerling](<https://devfeed.tech/sources/jeff-geerling.md>)

Topics: [3D](<https://devfeed.tech/topics/3d.md>), [Nanovna](<https://devfeed.tech/topics/nanovna.md>)

Tags: [3d](<https://devfeed.tech/tags/3d.md>), [3d-printer](<https://devfeed.tech/tags/3d-printer.md>), [3d-printing](<https://devfeed.tech/tags/3d-printing.md>), [fm-radio](<https://devfeed.tech/tags/fm-radio.md>), [geerling-engineering](<https://devfeed.tech/tags/geerling-engineering.md>), [nanovna](<https://devfeed.tech/tags/nanovna.md>), [pcb](<https://devfeed.tech/tags/pcb.md>), [radio](<https://devfeed.tech/tags/radio.md>), [rf](<https://devfeed.tech/tags/rf.md>), [sdr](<https://devfeed.tech/tags/sdr.md>), [signal](<https://devfeed.tech/tags/signal.md>), [video](<https://devfeed.tech/tags/video.md>)

### AI overview

The article tests whether a 3D printer heatbed can act as an FM radio antenna. Measurements with a NanoVNA found several potentially suitable frequencies, although the heatbed traces are not optimized for radio-frequency use. Near a high-power FM tower, the heatbed received a clear stereo signal.

### Source excerpt

Pooch from Repkord dropped by my studio while he was in St. Louis, and asked a simple question: Can a 3D printer's heatbed act as an antenna? A fair question, as many an antenna is embedded in a PCB these days... and the traces on a PCB heatbed like the one used in Prusa's Core One look kinda like an antenna, if you squint the right way. Really, anything (or anyone) can be an antenna, given enough power.