MFJ-9212-SO, Portable RF Isolator with SO-239 connectors

MFJ-9212-SO is Portable RF isolator with SO-239 connectors. High isolation 1:1 balun using type 43 ferrite material, binocular core and multiple turns of RG-316. Effectively isolates antenna and feedline, removes troublesome RF on coax shield that cause Microphone bites/RF burns, reduces RFI and noise. Correct radiation pattern for better signal reports. Convert balanced dipole, doublet, ladder line to unbalance coax feed.1.8-60MHz, handles 300 Watts, Easy-to-carry small rugged case with smooth edges, small 3 x 4 x 1 1/2 inch lets you keep it handy.