- Documentation and Software -

Are you looking for manuals, firmware, schematics or specification for one of our products?

For products that are in production look no further than the product page for a given item. All related documentation and software can be found at the BOTTOM of the product page.  For obsolete equipment look HERE, products are categorized by brand.

- Amplifier Keying Cables -

Custom cables built in Colorado, made with RG316/U Coaxial Cable (Teflon insulation)

Keying Cable for Kenwood radios    HERE

Keying Cable for Yaesu radios          HERE

Keying Cable for Elecraft, Icom and Yaesu FTdx-3000 radios    HERE


RKR Designs LLC no longer sells or services Ten Tec products. For all Ten-Tec products, Sales and Service, go to: www.tentec.com.


dream tuner development update

Manufacturing on redesigned prototypes has begun. Click HERE to see read about what's different about the latest Alpha 4040 design.