Originally Posted by tribby2001 All my major network local stations (UHF only and LOS) are transmitting from the same direction (260 degs) about 15 miles from my home.
I will need to feed 3 TVs over RG6 (3GHz rated) with a splitter. The longest run being about 60ft. Was wondering which Yagi type antenna for the attic of my one story house would you recommend? Would a pre-amp be neccessary?
As an aside, I was considering the Winegard SquareShooter SS-2000, at about 6 ft above ground level, off a pole mounted satellite dish. But I don't expect to have any multi-path issues here which I understand is what the SS-2000 flat panel is supposedly designed to reject. However, being mounted outdoors and the built-in preamp would likely drive 3 TVs just fine.
UPDATE - I purchased two heavilly discounted open box antennas for my experiment:
Antennas Direct ClearStream1
I was surprised to find how well indoor reception was with the ClearStream1. Overall indoor reception of the weakest locals improved from about 75% for a "perfectly positioned"
RCA 1050 wing to 85% with the Clearstream1 at most room locations. Very satisfactory except for its bulkiness
It certainly was a great improvement over every other indoor antenna I have fiddled (Mohu Leaf, RCA 1050 wing, unk. rabbit ears). I would even consider the larger ClearStream2
indoors if it wasn't for our goal to get these indoor antennas out of way.
Next experiment was to move the Clearstream1 outdoors mounted on the satellite dish pole about 6 feet above ground. Again, reception improved notably. (And it looks good outdoors, like modern garden art
.) The couple of locals that are the weakest improved from about 85% to 95%. One analog station is finally watchable but simply can't compete with digital TV quality.
OK, with these results I was very curious to know what more distant stations I could receive while pointing the ClearStream1 in different directions at ground level. To my surprise I was able to pick up a station roughly 180° opposite from my locals and 44 miles away (WWRS) at about 40% with my locals still coming in and watchable through the backside. Now my curiosity was stoked! What more could I receive with a larger antenna at a greater height? Now that I knew it was possible to receive WWRS at my location I wanted to receive everything possible with a permanent antenna. Having the opportunity to experiment was something I couldn't resist. So enter the DB8.
The DB8, like most high gain antenna, are very directional. They receive best from one direction. What I needed was a bi-directional antenna, one that would receive primarily in two directions (fore and aft) simultaneously. My scheme was to mount the DB8 without the rear reflector screens which is what makes it a one direction or uni-direction antenna. Removing the reflector screens would make it essentially bi-directional. Think a figure eight "8" reception pattern. Albeit, with less gain from either of two directions compared to with the reflectors in place and reception in one direction. A compromise I was willing to accept IF I could mount this contraption out of site and as high as I could without offending the neighborhood.
In a nutshell, what I did was use 1x3 cedar batter boards ($1.79/6ft) to replace the horizontal aluminum cross braces that would normally be used to mount the DB8 with reflectors to a mast. I pre-drilled all holes using the replaced horizontal aluminum cross braces as a template to maintain spacing and to avoid splitting the brittle cedar wood. Using the original bolts and spacers I bolted the two vertical 4 bow-tie elements to the 1x3 batter boards. I then climbed up into the attic and mounted it onto a vertical 2x4 roof strut near the roof peak with two wood wedges. The wedges are used to orient the antenna with a 10° offset from 90° East and 270° West (I.E. 80°E & 260°W). I connected the RG6 coax cable (Belden 1694A with Canare connectors) to the included antenna bal-un and fed it to a 3-way splitter in the basement.
Conclusion - I had a lot of fun! I receive all my locals consistantly at 100% with a dry asphalt roof at all three televisions. The distant station (WWRS) comes in at about 55% and is perfectly watchable. What penalty I will pay when it rains or the snow accumulates remains to be seen. The only small, but not surprising, disappointment was no other distant stations were found. But I now have very good reception with a very good invisable antenna. The ClearStream1 remains mounted at the dish as back-up in case rain or snow becomes a problem. Besides, it looks kewl
Thanks to those who gave advice and who took the time to PM. Good viewing to all!