BULLET format transformers are made in ratios from 1:1 up to 16:1 in 100/500/1500/5000 watt PEP Models. We also make BULLET Hybrids of NN:! + 1:1 in the same enclosure.
OCF antennas are very convenient as they will allow multiple bands of operation with a simple wire antenna which is fed off center with a 4:1 OCF Current balun with built in feed line choke,