MFJ-4956S HF+6M/ 140-450 Mhz – Duplixer-SO-239 Review PartyLamb CB and Two-Way Radios July 18, 2018November 10, 2018CB & Two-Way Radios, Electronics, MFJ, Portable Audio & Video 0 Comment MFJ-4956S* HF+6M/ 140-450 Mhz – Duplixer-SO-239 HF+6M/ 140-450 Mhz – Duplixer-SO-239