On Fri, May 3, 2024 at 07:43 AM, Andrew P. wrote:
Are you sure these packets weren't digipeated by the infamous buggy Kantronics
KPC-3, which also had the habit of delaying digipeats?
Many KPC-3Plus TNC still have this issue today, because it is not widely known that the KISS-mode Buffer Bug was fixed by Kantronics in a 2022 firmware update (it doesn't help that the new firmware is still called 9.1, you have to go by the date).
The problem did not effect the KPC-3Plus if it was doing the digipeating internally (the serial interface was in Newuser or Terminal mode) but many APRS I-gates connect to the TNC in KISS-mode.
This may be the wrong forum to spread the word, but if you operate a KPC-3Plus (any variety: original or MX or USB) in KISS-mode then you want to make sure that your firmware is up to date. No need to upgrade if you are not using KISS-mode and you are already on an earlier 9.1 version.
73,
Thomas
KK6FPP
