Profile: North Hills Signal Processing provides measurements and connectivity solutions. We are an ISO 9001:2000 certified company. Our product line includes wide band transformers, wide band instrumentation devices, data bus couplers and custom products. Our wide bands NH16581 video ground isolator is designed for installation at the receiving end of a coax transmission line. The NH16581 implements a wide band video isolation transformer to isolate the input and output grounds and is followed by a video driver amplifier that includes a DC restorer. It is featured with DC-6 MHz bandwidth and 120 db power frequencies. Our MIL-STD-1553 in-line data bus couplers provide a way to reduce the number of connectors and solder joints in the network, thereby improving reliability. These couplers are flight qualified and have successfully completed a 1000 hour life test at +125°C and 100% duty cycle.