The Z-17 telescoping whip is perfect for Parks on The Air, SOTA, Field Day, or any other portable operation you can think of. When fully extended the Z-17 is a full 1/4 wave on 20 meters. To achieve resonance on higher bands simply collapse the sections. If you want to work the lower bands (40-80M) pair this whip with a Ranger 80.
 
The Z-17 is a heavy duty 17-foot telescoping whip featuring a 3/8-24 threaded base and black heavy wall stainless steel tubing. The threaded base is welded to the first section for a rugged connection.