Adapter bracket with brass inserts An adaptor bracket for the OMNI-69, OMNI-275 and OMNI-296 Antenna. This Antenna bracket is supplied standard on the OMNI-291 (marine antenna) and provides the possibility of adapting the abovementioned antennas to fit onto the marine mountings, i.e. BRKT-37, BRKT-38 & BRKT-39. The BRKT-40 can be used by customers who want to use the marine brackets with non-marine omnidirectional antennas. download pdf