Hello, all I have a small quantity of AVCOM DCP-66 Bias Tees (power inserters) that are rated from 25~1500MHz. Solid aluminum block with a feedthrough cap and ground post for DC. Most of them have female "F" connectors on the input and output, but I changed a few of them to female "TNC". These were surplus from an Earth Station I helped rebuild, and were used to send DC up the coax to commercial LNB's with a 950~1450MHz output. I use one to power my S-Band downconverter, and it works fine. $25 each, shipping included. Contact me off-list if interested. 73, Jim KQ6EA