brendanhaines/charon_vna
1
0
Fork 0
Code Issues 1 Pull Requests Actions Packages Projects Releases Wiki Activity

README formatting
All checks were successful
Publish Python 🐍 distribution 📦 to PyPI and TestPyPI / Build distribution 📦 (push) Successful in -1m0s
Details
Publish Python 🐍 distribution 📦 to PyPI and TestPyPI / Publish Python 🐍 distribution 📦 to PyPI (push) Has been skipped
Details

Browse Source
This commit is contained in:
Brendan Haines 2025-06-26 21:37:41 -06:00
parent 8d7f87c9e6
commit 5184c05bb5
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
README.md
View File

@ -1,9 +1,9 @@
# Charon VNA
<!-- ![PyPi Downloads](https://img.shields.io/pypi/dm/charon-vna) -->
<!-- ![Last Commit](https://img.shields.io/gitea/last-commit/brendanhaines/charon-vna?gitea_url=https%3A%2F%2Fgit.brendanhaines.com) -->
<!-- ![Workflow Status](https://git.brendanhaines.com/brendanhaines/charon-vna/actions/workflows/python_publish.yml/badge.svg) -->
Named after [Pluto's moon](https://en.wikipedia.org/wiki/Charon_(moon)), Charon uses the [ADI Pluto SDR](https://www.analog.com/en/resources/evaluation-hardware-and-software/evaluation-boards-kits/adalm-pluto.html) as a vector network analyzer. The basic usage is as a 1 port VNA but this can be extended to arbitrarily many ports with the addition of a couple RF switches.
## Installation
@ -53,6 +53,7 @@ It will also be accessible over a socket to enable test automation with external
TBD
### Power Calibration
I include a default output power lookup table. This is derived from two TX channels of two Pluto SDRs and does not include any of the loss of a coupler or Charon switch board.
Absolute output power is generally not well calibrated for VNAs anyway and has negligible impact on most measurements so this is probably sufficient for most users. If you're trying to run a power sweep this may be insufficient.
@ -64,11 +65,13 @@ Note that unlike the main calibration, power calibration frequencies do not need
## References
#### Pluto Default Connection Settings
user: `root`
password: `analog`
ip: `192.168.2.1`
- user: `root`
- password: `analog`
- ip: `192.168.2.1`
## Alternatives
- [NanoVNA](https://nanovna.com/). 2-ports. 50 kHz - 2.7 GHz. Degraded performance above 1.5 GHz. S11 and S21 only.
- [pluto-network-analyzer](https://github.com/fromconcepttocircuit/pluto-network-analyzer). 2-ports. 100 MHz - 3 GHz. S11 and S21 only. Uses a [wideband RF bridge](https://www.60dbm.com/product/rf-bridge-1-3000-mhz/) instead of a coupler
- [LibreVNA](https://github.com/jankae/LibreVNA). 2-ports. 100 KHz - 6 GHz. I've never used this but it is almost certainly faster than Charon. Not sure how the performance compares. $700 on [AliExpress](https://www.aliexpress.us/item/3256802242049773.html?gatewayAdapt=glo2usa4itemAdapt)