The REZ [Z]-25 is a long telescoping radiator designed for portable HF deployments where additional radiator length improves lower-band performance. With a compatible REZ foundation, it can be used for full-size quarter-wave configurations across several HF bands or paired with loading and matching systems for additional deployment options.

The added radiator length makes the [Z]-25 particularly useful when efficiency on the lower portable bands is a priority while retaining the convenience of a telescoping field radiator.