[mythtv-users] Antenna wiring question
Barry Martin
Barry_Martin_3 at Q.COM
Sat Nov 9 15:12:37 UTC 2013
Hi Stefan!
After my Comcast bill went up $29 in one month, I decided to start exploring alternatives.
Don't blame you! Did the same here.
I have an antenna in the storage area (attic for a story-and-a-half house) which goes to a 4-way splitter to feed the three tuners to my Mythbuntu Backend. Use a 75Ω terminating resistor on the unused splitter terminal. I also found I needed a pre-amp to boost the signal strength. Because the antenna farm is only about 15 miles away I had to use a Winegard HDP269 to minimize pixellation when the wind blows and the signal strength suddenly increases/decreases. (Too much signal will cause the AGC circuits to shut off.)
The Mythbuntu Backend feeds the Mythbuntu Frontends via the Ethernet network.
I originally wanted to also use the one antenna to feed the various TVs for OTA. Didn't quite work! If the TVs had sufficient signal that overloaded the Mythbuntu Backend; proper signal levels to the Backend was insufficient for the TVs. I tried various combinations of amplifiers, attenuators. Ended up getting a second antenna to feed the TVs; that one also needed a pre-amp due to the 8-way splitter. (Not all TVs are on the Mythbuntu system.)
Good Luck!
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