Description: North Hills is the leading supplier of MIL-STD-1553 data bus couplers, network testers, and related hardware such as cable, connectors, terminators, dust caps, etc. We are a one-stop shop offering a broad, off-the-shelf product line. Since 1953 we have been a supplier of leading edge wideband video and RF transformers offering superior performance and product consistency. We manufacture our transformers in accordance to MIL-T-21038 and have excellent common mode rejection ratios. All North Hills products are precision designed to meet exacting specifications at minimum cost. Sophisticated computer aided design and testing procedures are utilized to optimize linearity and flatness of frequency response while assuring performance to specifications in both standard and custom products.