Hope this will be of some interest for those using twisted pair instead of coax. The company I work for is manufacuring all kinds of 75 Ohm / UTP balun adapters and surge protection units. The one I am using for my phased biderectional flags is "УПВ-МВ" http://www.elsy.com.ua/ru/pasivnie-priemnikiperedatchiki-kanal-c-1_15_66_61.html Sorry the site is in Russian only. The surge protection units - http://www.elsy.com.ua/ru/videonablyudenie-zashchita-ot-visokovoltnih-navodok-c-1_27.html If someone is intersted, please contact me directly.
Среда, 18 сентября 2013, 15:33 -07:00 от "Bruce" <[email protected]>: >Yes Jim, and that is what I do, sell transformers. Just trying to locate >some cable and let others know adaptors are available. > >Thanks, it's always good to find maybe a better adaptor source and more >resaonable price. > >73 >Bruce-K1FZ > > > >----- Original Message ----- >From: "Jim Brown" < [email protected] > >To: < [email protected] > >Sent: Wednesday, September 18, 2013 12:03 PM >Subject: Re: Topband: 75 ohm coax to twisted pair Adaptors > > >> On 9/18/2013 2:47 PM, Bruce wrote: >>> Found these for a friend who is thinking about going to twisted pair. >> >> To connect what to what? Why? >> >> If it's for RX and the ends are unbalanced (that is, one side grounded), >> he'll need some form of transformer or other circuitry to make a balanced >> connection. >> >> There are female F to male PL259 adapters (most I've seen are el-cheapo), >> and I've seen female F to RCA, and female F to 2-ckt (T-S) 1/8-in male. I >> think Fry's stocks them. >> >> 73, Jim K9YC >> >> >> >> >> _________________ >> Topband Reflector >> > >_________________ >Topband Reflector -- 73, Victor Goncharsky US5WE/K1WE (UW5W in VHF contests) UARL Technical Committee DXCC card checker in Ukraine(160 meters). _________________ Topband Reflector
