John Wiseman’s BPQ32 is not just a terminal; it is a full networking stack. The latest update (v6.0.24.1) includes native drivers for the PK-232MBX in KISS mode.
The PK‑232MBX’s support for PACTOR I (and II with the optional DSP‑232 upgrade) makes it a budget Winlink radio mailbox. The recommended software today is ARDOP or VARA for soundcards, but for pure PACTOR, Winlink Express (latest version 1.8.14) includes a “PK‑232 PACTOR” session type. Set it to COM port, 4800 baud, and you can connect to RMS stations — no extra drivers needed.
Caveat: PACTOR II requires the PK‑232’s external DSP‑232 module, which is long discontinued. Expect only PACTOR I speeds (~300 baud) on a stock unit.
If you just want to send commands to the TNC: pk232mbx software updated
As of early 2025, Timewave (the current rights holder) has shifted focus to the DSP-4100 series. Official support for the PK-232MBX is considered "end of life."
However, the open-source community has taken the reins. A GitHub project titled "OpenPK232" aims to replace the internal ROM entirely with a Raspberry Pi Pico RP2040 chip, turning the classic chassis into a software-defined TNC.
For now, the most reliable "software update" is the combination of PK-232MBX Firmware v9.1 plus BPQ32 v6.0.26 running on Windows 11 with an FTDI USB cable. John Wiseman’s BPQ32 is not just a terminal;
The biggest issue with "updating" or using a PK-232 today is the connection.
For nearly four decades, the PK‑232MBX has been the workhorse of the HF digital world. But can a TNC born in the 1980s keep up with 2026? The answer lies in a surprising software ecosystem — both old and new.
In the pantheon of amateur radio gear, few devices have achieved the iconic status of the PK‑232MBX. Originally designed by AEA and now manufactured by Timewave, this Multimode Communications Controller introduced thousands of hams to packet, RTTY, AMTOR, FAX, and even early PACTOR. Its rugged metal case and familiar DB‑25 connector are still spotted at field days and in shacks worldwide. As of early 2025, Timewave (the current rights
But the original PC‑compatible software — PK‑232 for DOS, Procomm Plus scripts, and HyperTerminal kludges — has aged poorly. Modern Windows 11 and macOS systems don’t speak serial the old way, and USB‑to‑serial adapters often mangle timing. Yet the PK‑232 refuses to fade away. Why? Because a vibrant, if niche, software update movement has emerged.
The PK232MBX is a highly regarded device in the amateur radio community, known for its versatility and range of applications, from packet radio to APRS (Automatic Packet Reporting System) and more. Recently, an update to its software has been released, bringing with it a host of improvements, bug fixes, and new features designed to enhance user experience and functionality.
For the nostalgic, DOSBox‑X (a maintained fork of DOSBox) now includes real serial passthrough to host USB‑COM ports. You can run the original PC‑Pakratt 3.0 disk image at full speed, with the PK‑232 responding as if it were 1992. The catch: timing loops in old software can glitch PACTOR, but for packet mailboxing, it’s rock solid.