Maldol MFB-300 Maldol MFB-300 Reviewed by David • Senior RF Engineer & Technical Editor • March 2026 Sort: A-Z Most Popular Rating 2.8/5 (2) Maldol MFB-300 HF vertical antenna review — g0kya The Japanese-made Maldol MFB-300 HF vertical antenna offer extremely wide-band performance, with a specified frequency range of 1.0-60 MHz.