Futaba 3PK owners interested in the glitch free world that is Spektrum will appreciate the Pro Series module and receiver from Spektrum dedicated to their system.
The system has been specially developed to work with the Futaba 3PK when the HSR modulation is chosen and offers blistering processing speed; the combined latency being just 2 milliseconds.
While Spektrum equipment has been extremely reliable for the vast majority of owners, static electricity discharges (ESD), have been found to cause rare but irritating “shutdowns” when it was used at some carpet and on-road racing venues in conditions of extremely low humidity. After a lot of work by the engineers, the source of the problem was found and the Pro System for the 3PK incorporates changes that eliminate the problem for good.
To handle the rigors of competitive racing, Pro Series receivers are now coated with a virtually clear conformal coating called ReliaKote™. It’s an exclusive Spektrum plus that ensures reliable performance no matter how much dirt, gunk and motor spray works its way into your Pro Series receiver’s case.
Besides its other advances, the Pro Series system features an advanced, more rugged, premium-quality oscillator that not only shrugs off shock loads, but actually increases range via its RF link-boosting, ultra-precise frequency accuracy.

This system is designed for use with digital servos only. The module and receiver are designated “Futaba HRS Version” and are for use with the HRS system only.