Increased "Capture Area" for Better Reception. Many Times the Surface Area Approximately 300. Good Bandwidth for those Fringe Areas. 100 % American Made with American Materials. Custom Blended Fiberglass for Ruggedness and Flexibility. 3/8" X 24 Threaded Base. Available in 3 or 4" Black. Mount Type: 3/8 inch x 24. Length: 36 Inches. Frequency Range: 88-108MHz. Frequency Range: 1-2MHz. Frequency Type: AM/FM. Load Position: Top. Antenna Type: Fiberglass. Mount and/or Cable Included: No. Termination: 3/8 inch x 24.