Island Magic Co.
B.B. Link adapter sunset
June 11, 2026
Aloha,
I'm reaching out with an important update about a product many of you have supported over the years. Thank you for championing an independent maker and helping bring ideas like this to life.
Nearly two years ago, I introduced the B.B. Link, an adapter that allowed apps like RadioMail, Packet Commander, and now Radio Messenger to use the built-in packet TNC of the Kenwood TH-D74 and TH-D75 radios. At the time, iPhone-friendly ham radio interfaces were scarce, and B.B. Link filled a real need.
The landscape has evolved. We now have capable audio adapter options such as the Digirig Lite and AIOC, which let software modems interface over audio directly. We also have reasonably priced HT radios like the UV-PRO and VG-N76 that expose their TNCs over BLE.
I hope radio manufacturers continue this trend and ensure future hardware exposes a TNC, or at least a Bluetooth or Wi-Fi–accessible audio interface, so more people can participate with less friction.
I never set out to become a hardware maker. I built the first prototype for myself and hoped I might sell the initial batch of 100 to recoup my cost. Demand far exceeded that, and I've been humbled by the reception.
But B.B. Link has always been a handcrafted project. Managing supply chain challenges, tariffs, assembly, testing, order fulfillment, and support has been meaningful work, but also time consuming. It's time for me to reclaim that bandwidth and focus fully on software development, where I can deliver the most impact for the community.
With that in mind, B.B. Link availability will end once the current batch sells out. I expect most who want one already have it, but if you need a spare (or know someone who would) now is the moment.
The firmware remains open source for anyone who wants to build their own DIY version.
Thank you again for being part of this journey.
G.