New drivers and terminal software are better at handling the "jitter" often introduced by USB-to-RS232 adapters.
For links to Tera Term macros, the N9LYA config pack, and pre‑configured BPQ32 templates, check the PK‑232 Software Update Project group on Groups.io (active as of April 2026). pk232mbx software updated
I can also help locate the specific AEA PK-232MBX service manuals if you need technical details. PK-232 Upgrade Guide - Timewave New drivers and terminal software are better at