# RF Power Meter V5 Companion: reconstructing the meter's serial protocol

> RF Power Meter V5 Companion reconstructs the USB RF Power Meter V5 serial exchange and uses it in a Windows monitoring app. Its protocol notes describe 460800 8N1 communication, calibrated dBm records, burst markers, and device settings; the author reports comparing live captures with an IL decompile of the vendor executable.

- Type: Case study
- Targets: Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-08
- Original resource: <https://github.com/LostInNovo/rf-power-meter-v5-companion>
- Primary source: <https://github.com/LostInNovo/rf-power-meter-v5-companion/blob/e5e681a4ae62023669db91028236b17900eb8b95/PROTOCOL.md>
- Catalog page: <https://awesomerea.org/resources/rf-power-meter-v5-companion-case/>
- Record JSON: <https://awesomerea.org/resources/rf-power-meter-v5-companion-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/rf-power-meter-v5-companion-case/index.md)

## Requirements & limits

- **Prerequisites:** USB RF Power Meter V5 with STM32F401CCU6 and AD8317 or AD8318, plus 64-bit Windows.
- **Prerequisites:** The source build requires the .NET 7 SDK.
- **License:** MIT.

## Primary sources

1. <https://github.com/LostInNovo/rf-power-meter-v5-companion/blob/e5e681a4ae62023669db91028236b17900eb8b95/PROTOCOL.md>
2. <https://github.com/LostInNovo/rf-power-meter-v5-companion/blob/e5e681a4ae62023669db91028236b17900eb8b95/README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.