Paul, When Google isn't your friend (it rarely is, the way Google harvests data), try Bing. Here's a tinyurl for the bing search results & you'll likely find what you want here.
https://tinyurl.com/ya6ydwef The ones at the top from Amazon are what I used to replace SO239 connectors in a remote antenna switch. I bought a 1" strip of aluminum at the hardware store & drilled a hole for the F81 & 4 attachment screw holes. Cut it off when the holes were drilled & it fit exactly and it was real helpful. Don't think that's what you're trying to do. FWIW, Lee is always helpful with just about any question, maybe he has a good suggestion? 73, Gary KA1J > Google isn't my friend today... > > I am looking for an isolated "F" barrel connector, commonly known as > the F81. I am designing an aluminum interface plate for use with a > Hi-Z 8-circle receive array. The panel will contain multiple F81 > barrel connectors that attach to the side of a large PVC tool box with > gasket weather seal. An isolated F81 is probably a very odd item > since it's a connector that's not normally used for baseband signal > distribution like video and data. > > Each of the RG-6 lines run into a Hi-Z switched phasing box where each > line is connected to a toroid transformer. As such, measuring > resistance from the ground of one antenna port to another shows about > 30 ohms resistance, necessitating isolation at my connection plate. > The Hi-Z phasing box is made of PVC material and each antenna input is > isolated by virtue of the plastic box. > > In the alternative, I could use isolated BNC or TNC connectors with F > between-series adapters. Insulating each F81 with its own insolation > strip is definitely not an option in this application. The last > option is to run all lines directly into the large box and make a > direct connection to the Hi-Z phasing unit. However, I would really > like the option to disconnect on the *outside* of the box so that it > can be quickly wheeled in for maintenance. > > Thoughts? > > Paul, W9AC > > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband > Reflector > _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
