User manual PHILIPS 37350-87-16

[. . . ] The reflector on the other hand, does not have a specific top or bottom. Extend the folded drive element by carefully folding the "wings" outward so they are at 90 degrees to the boom. Attach Transformer to bottom studs of drive elements with wing nuts and washers. Slide the reflector screen onto the boom from the rear until the screw holes of the screen bracket line up with the holes on the top and bottom of the boom. [. . . ] Before permanently mounting the antenna for digital television (DTV) reception it is a good idea to perform a quick sight survey to find the spot with the best signal. Moving the antenna one way or another just a few feet can make a tremendous difference in the success of the antenna installation. WARNING ­ Installation of this product near power lines is dangerous. For your safety, keep ladder and antenna away from power lines. DTV is a little different than analog TV. With analog TV peak signal strength was the most important factor for good reception and creating a good picture. With DTV peak signal strength is not the most important factor for good reception. This means that our old methods for finding a location and aiming a TV antenna will not give us the best results for DTV. In choosing a permanent location for our DTV antenna we want to look at a couple of mounting locations. Tip: Do not use a convention signal strength meter for installing a DTV antenna. Chances are this will give you false information and cause the antenna not to work reliably. Find the location that has a stable picture with the least amount of ghosting. Very often, ghosting can be minimized if you rotate your antenna until the picture improves. Unfortunately, sometimes there is no solution for the problem due to surrounding terrain/obstructions. We are looking for a picture that is clear and free of ghosting. Ghosting - This is a very common problem in areas with large buildings, hills or valleys. the signal bounces off of various surfaces and creates multiple images. This is sometimes called "multi-path" to describe the multiple signals that reach the antenna. In extreme cases, you may see six or more distinct clear images side by side overlapping each other. The problem can usually be resolved by moving the antenna mounting position six feet to the left or right and/or raising your antenna higher to receive a more direct signal. Do not worry about snow in the analog picture; this is not a problem for DTV. Find a location where the analog TV has the least amount of ghosting, and color in the picture with the audio clearly heard. [. . . ] Watch DTV channel for a few minutes to make sure picture is consistently stable without freezing, disappearing or breaking up. For best results, do not run signal through diplexers or splitters, run new RG6 coaxial cable from antenna location directly to your DTV receiver. If you have a cable run of more than 100 feet or need to run through diplexers and/or splitters use a signal preamplifier that is installed as close to the antenna as possible. To avoid signal loss, do not attach the coaxial cable to the mast, use stand offs (fig. [. . . ]