A multi-ratio UnUn (just like our original model) but includes an integrated Choke Balun. This is because, often, with low impedances, current can flow on the braid of your coaxial cable so a choke of some sort is required. We've solved that problem by putting one inside the UnUn box! A 43-mix ferrite is used to offer good choking performance 5-30MHz with up to 200w RF power.
Sometimes, a single ratio just isn't enough if you're changing bands or out /P with different lengths of wire. The 3 ratios allow you to easily find a better match to your radio/tuner. Use of counterpoise/radials is advised. All fixings are stainless-steel.