M20 - new firmware?

[RS_PL]

Today, an M20 radiosonde with an unusual ID number was flying . Only one SKYMAX station decoded the signal. In this region, more stations typically decode radiosonde signals. Do the M20s in this series have the new firmware?

[Mark Jessop]

That SKYMAX station is reporting an auto_rx version of 1.8.3, which doesn't exist yet. Even the testing branch is still still on 1.8.2.

So, my worry is that they are running a modified version of auto_rx which is decoding incorrectly.

Unfortunately I dont have any contact details for this station, so I can't find out what is really going on here..

If stations are experimenting with forks or modifications of auto_rx, it's important that they add a suffix to the version number so that it's clear what they are doing.

73

Mark VK5QI

On Tue, Apr 14, 2026 at 5:30 AM RS_PL <sonde2...@gmail.com> wrote:

Today, an M20 radiosonde with an unusual ID number was flying . Only one SKYMAX station decoded the signal. In this region, more stations typically decode radiosonde signals. Do the M20s in this series have the new firmware?

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