[nos-bbs] Fwd: Update NinoTNC firmware with improvements to 300 bd AX.25

Fri Nov 1 10:38:12 EDT 2024

New firmware for NinoTNC users, see further below ...

It's been a rock solid modem since the unixasy.c code was fixed up, very 
nice !

Maiko / VE4KLM

-------- Forwarded Message --------
Subject: 	Update NinoTNC firmware with improvements to 300 bd AX.25
Date: 	Fri, 1 Nov 2024 10:28:25 -0400
From: 	Nino Carrillo
To: 	Maiko, Mark

Hello gents,

I've published a NinoTNC firmware update that improves sensitivity for 
all the 500-Hz wide modes. This includes 300 baud AFSK AX.25 (which I 
think you use Maiko?)...

Specifically regarding 300 AFSK AX.25, the new firmware adds several dB 
of sensitivity compared to the last version. Also, slightly wider 
off-frequency tolerance (the SSB challenge).

The new version is 3.42 for 256k dsPIC chips and 4.42 for 512k dsPIC 
chips. They are functionally the same.

https://github.com/ninocarrillo/flashtnc

73,
Nino
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