2025 in Review
I’m the first to admit that CTR2 products have gotten confusing over the years. At the first of 2025, I introduced CTR2-Dial, a MIDI controller based on CTR2-MIDI, but with a touchscreen display. It came with CTR2-Dial firmware. Later in the year, I introduced CTR2-Flex. While similar in appearance to CTR2-Dial, it was designed to control just the Flex radio using WiFi and the Flex API. It ran CTR2-Flex firmware.
Hardware wise, these units are completely different, but either can run CTR2-Dial or CTR2-Flex firmware. This allowed the user to flash the appropriate firmware to their unit for their intended use. That seemed needlessly complicated to me, so I merged the Dial and Flex firmware into a single firmware binary, and kept the CTR2-Flex name for it (think of it as CTR2 “flexible” firmware). You can now boot into CTR2-Dial or CTR2-Flex firmware from the Settings menu in either firmware, and it runs on either device.
To add to the confusion even more, CTR2-Dial and CTR2-Flex units are available with one or two knobs. The knobs can be ordered with no-detent (smooth) or detent (bumpy) encoders. There are two different enclosures available; a commercial New Age enclosure that is CNC machined, and a custom G7UFO-designed 3D printed enclosure.
Confused? Me too!
Changes for 2026
Honestly, I’ve created a production nightmare! All CTR2-Dial and CTR2-Flex units are essentially custom built after I receive your order. There are simply too many variants to maintain a stock of completed units.
To help simplify the CTR2 product line, and my life, I’ve decided to eliminate the CTR2-Dial hardware and rename/simplify the CTR2 product line as follows:
Legacy Products
CTR2-Micro will continue to be available with a no-detent (smooth) or detent (bumpy) encoder, and internal or DIP switch jumpers. 
CTR2-Voice for CTR2-Micro will continue to be available.
CTR2-MIDI will continue to be available. Its always had a no-detent encoder and no options.
Changes to CTR2-Flex
Single-knob CTR2-Flex units have been renamed to CTR2-Uno. They will continue to be available in either the New Age or 3D printed enclosure and will be loaded with CTR2-Flex dual-boot firmware. They will ship with a no-detent encoder since the large aluminum knob is typically used for VFO control.
Dual-knob CTR2-Flex units have been renamed to CTR2-Duo. They will continue to be available in either the New Age or 3D printed enclosure and will be loaded with CTR2-Flex dual-boot firmware. They will ship with detent (bumpy) encoders since the small knobs are typically used for volume, keyer speed, etc.
A new four-knob CTR2-Flex unit will be available by mid-January (hopefully). The new unit is named CTR2-Quad. It will only be available in the 3D printed enclosure. It will also be loaded with CTR2-Flex dual-boot firmware. Knobs A, B, and C will be detent encoders. Knob D (with the large aluminum knob) on the bottom-right will be a no-detent encoder since its primary use will be VFO control.
CTR2-Dial to be Discontinued
- CTR2-Dial, loaded with CTR2-Flex dual-boot firmware, will remain available until the existing stock of parts are depleted. Detent and no-detent encoders will be available until my stock of each runs out.
My hope is that these changes will make it easier for you to decide which CTR2 unit is right for you. It will also simplify production and allow me to build a stock of inventory that I can quickly ship.
I want to thank everyone that has supported my CTR2 projects over the years. It’s been a wonderful experience and I enjoy working with everyone. I wonder if there’s a DXCC award for countries shipped to, hihi.
73, Lynn, KU7Q