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post #1 of 4 Unread 06-22-2015, 03:29 PM - Thread Starter
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substitute for antenna 300 ohms to 75 connection.

Hi guys; i'd like your opinion on this project i made for my rooftop antenna,to substitute the matching transformer.
first my Antenna rotator broke so i took it down and fixed it,it had some bolts that fell off then i had to take out the antenna 300 ohms to 75 ohms matching transformer,which broke upon unbolting it witch was bad luck,now i have no matching balloon an the worst part nowhere to buy it ,use to get stuff near here from Radio Shack which closed ,
i have also installed a SVA15PRSM distribution Amp near the antenna and a 12v SVPI ,these items were installed before, but inside the house closer to the receiver.
now story short,since i did not have the matching transformer ,i did not want to go by without tv i made a straight connection with coaxial cable ,took out the F connector and striped the coaxial wire connected ground wire to one side and the middle wire to the other of the antenna , and for my surprise i never had so many chan and so good reception,but someone suggested me, due to water getting inside the wires to get an outdoor matching transformer.

well made this straight wire to connect from the antenna to the amp,which is inside a water proof incase,

as you see i cut 2 pieces of thin ground wire and connected and soldered an F type connector that i cut from type F cable connectors,
what you think about this? will it work?i know i should go up there and try! but up there are 50 feet high and no easy access and i'm not young anymore, so will this work at least same way i have now? thanks

http://postimg.org/image/d161lt343/ef75894e/
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post #2 of 4 Unread 06-22-2015, 04:36 PM
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There are places on the internet that you can get 75 ohm baluns. This is just an example:

http://www.amazon.com/300-Ohm-UHF-Ma...s=75+ohm+balun

Bobby 

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post #3 of 4 Unread 06-22-2015, 05:44 PM - Thread Starter
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Originally Posted by bobby94928 View Post
There are places on the internet that you can get 75 ohm baluns. This is just an example:

http://www.amazon.com/300-Ohm-UHF-Ma...s=75+ohm+balun
thanks but i think i 'm going to keep the way it is connected now, where i went from 34 chan to 60 and a better reception ever on all chan, and get some red high temp silicon to seal the end of the cable where i stripped the coax
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post #4 of 4 Unread 06-24-2015, 02:30 PM - Thread Starter
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thanks but i think i 'm going to keep the way it is connected now, where i went from 34 chan to 60 and a better reception ever on all chan, and get some red high temp silicon to seal the end of the cable where i stripped the coax

And for someone out there that don't know better,don't waist money on matching balloons that end up failing very often, just do as i did, see pic,and add silicon to the striped ends,it will give you better signal and more chan,i tried this with and without balloon,and result without balloon you get better.

http://postimg.org/image/osp3l70qh/e9c3dc75/
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