B117 50/200kHz 600W Mix & Match 0° Deadrise Airmar’s entry-level B117 features a single, 50/200 kHz, dual-frequency, ceramic element in a low-profile bronze housing. The nearly-flush design minimizes drag with…Continue readingAirmar B117 50/200kHz 600W Mix Match 0 Deadrise [B117-DT-MM]