Baluns, Ring core broadband Balun in classical construction, weatherproof built. Frequency range 1 to 50 MHz Color: Black, Strain relief 5 mm for wire installation (at 120 W mini balun, the strain relief is sold separately and is the balun at) Ground SO239 PL socket for coax connection via PL plug 50 Ohm. Rain Water deflector prevents the ingress of water into the coax connector from above Electrical connections consist of M4 stainless steel screws.The circular cable lugs for 2-3 mm wire diameter are included. The indicated load capacity refers to the operating mode SSB / CW. Other operating modes such as AM, FM, or Digi-Modes are to be requested. The dimensions are approximate values and can change at any time due to product optimization.