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peterantypas / maiana

MAIANA™ is the first Open Source AIS transponder. It proudly raises an extra long middle finger to the marine electronics industry, government overregulation and everything else that gets in the way of innovation in this space.
GNU General Public License v3.0
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Tuning is off by 5KHz #103

Closed peterantypas closed 2 years ago

peterantypas commented 2 years ago

It has come to my attention that boards built in the last two months and which have a new crystal (ECS-300-10-33B-CKM-TR) are off by about 5KHz in their tuning. This isn't a big problem. Both RX and TX function well enough. It should, however, be corrected.

The fix will be in a firmware update. The challenge, though, is that I'm not 100% sure which board revisions were affected. I know for a fact that 100% of version 11.5.0 and later boards are based on the new ECS crystal, but it's possible that some boards between 11.3.0 and 11.5.0 had a mix of crystals.

If the crystal on the board looks like this, then FW update 4.1.0 should be applied. If not, it should be skipped.

IMG_1673

peterantypas commented 2 years ago

Fix is in master

emilecantin commented 2 years ago

@peterantypas Are there pre-built binaries available for this? I've got hardware 11.8.0 and firmware 4.0.1, so it looks like I need the update.

Thanks!

peterantypas commented 2 years ago

Yes, binaries are here:

https://github.com/peterantypas/maiana/tree/master/latest/Firmware/Transponder/Binaries

emilecantin commented 2 years ago

Ah, thank you. I was looking at the usual "Releases" and "Tags" tab in Github, didn't think there was a directory in the repo for that.