The Kathrein Scala Division CL7-300 broadband log-periodic antenna is intended for use in professional fixed-station applications in the 225–400 MHz band. It features heavy-duty construction. Anodized 6061-T6 aluminum elements. Easy element replacement if necessary. Double boom of 6061-T6 rectangular aluminum tube. High front-to-back and front-to-side ratios without minor lobes