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2 OTA Antennas on one mast
Posted 27 September 2010 - 02:29 PM
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Posted 27 September 2010 - 02:49 PM
I don't think there is a definitive answer here.
You might get interference depending upon how close the antennas are, how strong the signals are, the channel frequencies, multi-path interference, and how you combine the signals.
There's probably a lot of math you could do to figure it out, but ultimately hooking everything up and trying it out is the best way to find out.
I'm using a dual antenna setup indoors, a few feet apart, because I need it to pickup a particular channel.
-- !rotaredoM mA eM
Posted 27 September 2010 - 02:58 PM
Posted 27 September 2010 - 05:21 PM
I'm not aware of my indoor ones interfering with each other when separate... but they do interfere a little when I combine the signals.
-- !rotaredoM mA eM
Posted 27 September 2010 - 05:41 PM
If they are different bands i.e. one VHF and one UHF, then its not quite as important. I have my channel 7-13 yagi 4 feet below my UHF yagi and have no appreciable pattern distortions.
Check Amateur Radio Relay League antenna book, or the ARRL on google for lots of info.
Tivo Premier XL4, Tivo Premier, Tivo HD whole home on Xfinity HD, DirecTv Whole Home with 39" high gain KaKu dish, Roku3,SageTv 8 TB Win8 Server -> DVDO Edge-> Denon AVR, Klipsch KB15's/Panasonic 55ST60 plasma"
Posted 28 September 2010 - 06:51 AM
Posted 03 October 2010 - 05:36 PM
Posted 03 October 2010 - 11:58 PM
Posted 04 October 2010 - 10:03 AM
Thanks for all the feedback..
Posted 04 October 2010 - 01:43 PM
I had this set up during the transition. I used a 4' pole to distance the two and a simple combiner to "mix' the two then ran it to my distribution system using a Diplexer. It worked out great. I took it down after the completed switchover, but will probably need to put it back up since I am finding out that the AntennasDirect CS4 (shown on the bottom) that I was guaranteed by their President would cover 7-69, over exaggerated the 7-13 capability as I am finding out, they no longer listing it in their specs and their TS now mentions. But mind the weight of the extension pole if you do it as I did. If too heavy, it'll put a ton of stress on the mount (standard DISH J mount) and it could pull it out. Mine was anchored in concrete and I could see it starting to work its way out.
Might I suggest:
or at least:
MFH-2 System : 2 Major Viewing Areas. 2 x HR20-700's & H21 in each area via E2/SWM-8. Hardwire gigabit switch to 30 mb/sec internet.
Posted 04 October 2010 - 02:07 PM
Thank you for your suggestions but my chimney is 30'+ wide and I have bit up there. Plus I really like the "clean covert" look that I have now. All those straps are a bit much. I have a good base to work with. It just needs to be done methodically, instead of "I've two more jobs after this." When I get an once of energy I am taking the foot that I got from the guys that just reinstall my two dish set up and have a seriously more secure anchoring method in mind. Now that I have gotten rid of the 1k2 dish that catches the wind more and was hammering the far right mount, secure since 1994 until the 1k2, and have my 500s back, of which I never had any torq issues, with the "reinstall" I have in mind it might be a bit over kill. But solid forever, "pretty" from the ground with finite mount tuning capabilities.