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Old 15-Nov-2014, 8:56 PM   #86
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,748
ANTENNA MOUNTING 2

When I was looking at the satellite map of your house on bing.com, I was able to rotate the bird's eye view to see the rear of your house. It is an old image (2011), so there might have been some changes. These are the options I see:

1. A 5 ft tripod mount at the peak of the roof at the rear of the house.
2. A thru-the-roof mast to your attic at the same location, similar to a plumbing vent pipe.

Both of these options would require roof penetration, which would need to be done with care to prevent roof leaks.

3. A mast at the back of your house that would run from the first floor deck up to above the peak of the roof. Its base would be on the deck. It would be fastened with an eave mount at the top, and several wall brackets below. It would allow you to adjust the aim of the 91XG from below using the "Armstrong method" before tightening the U bolts.

You could move just the 91XG first and leave the C2V in its present location for now. This would allow you to try other antennas there more easily.

The 91XG has a tilt feature which would allow you to tilt the front of the antenna up for higher angle incoming signals like your 2Edge Fox signal on CH 49. Your location is at the right end of the profile:



Channel 49 is 683 MHz center frequency. Note the increased gain and more narrow angle at that frequency, which means the aim is more critical. Also note the notch at each side of the peak, which means a loss of gain at that angle.



If you stay within the FCC height limits for your antenna, any neighbor or HOA that complained would have to prove that you weren't in compliance.
Quote:
(3) An antenna that is designed to receive local television broadcast signals.

In addition, antennas covered by the rule may be mounted on "masts" to reach the height needed to receive or transmit an acceptable quality signal (e.g. maintain line-of-sight contact with the transmitter or view the satellite). Masts higher than 12 feet above the roofline may be subject to local permitting requirements for safety purposes. Further, masts that extend beyond an exclusive use area may not be covered by this rule.
https://www.google.com/?gws_rd=ssl#q...na+regulations
http://www.fcc.gov/guides/over-air-r...n-devices-rule
Attached Images
File Type: jpg KRBK Profile.JPG (50.9 KB, 1958 views)
File Type: jpg 91XG Gain VS Elevation Angle.JPG (124.4 KB, 2008 views)

Last edited by rabbit73; 16-Nov-2014 at 1:00 AM.
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