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| C-Band
Tuning Tips Tuning your Big Dish From time to time, it may be necessary to adjust your receiver in order to restore your channels. There are two main adjustments to make: dish position (moving your dish alignment east and west) and skew/polarity (ensuring that your receiver is able to correctly show a channel that is delivered in a horizontal or vertical signal). Note that some receivers and dish configurations may require additional set up or be placed in a programming mode to accomplish proper programming reception. Whenever programming your receiver, it is recommended that you use your receiver’s owner’s manual. Your local dealer is also recommended. When tuning in a 4dtv digital channel, start with analog odd and even numbered channels (from channels 1-24) that you subscribe to on that same satellite and tune them in as well as possible. Starting with your Satellite Chart It is extremely helpful to use a satellite chart when aiming your dish with your receiver. On the chart, learn the polarity differences between satellites for odd and even numbered channels. On some satellites, even numbered channels have a horizontal polarity signal, while on other satellites, the even numbered channels have a vertical polarity signal. Satellite names are listed at the top of the chart, and as you read, the furthest satellite to the left is generally the eastern most satellite on your receiver’s configuration, and the furthest satellite to the right is generally the western most satellite. Note that the chart may show satellite names that are designated differently on your receiver. Note that this chart shows transponders, and therefore analog channel numbers. This chart will not show 4dtv digital channel numbers since multiple 4dtv digital channels are compressed in to single transponders. Dish position adjustment Using your remote control, locate the dish position buttons. Most appear as actual arrows pointing left and right, or even up and down. There might be E (east) or W (west) buttons. Some receivers also have buttons that automatically tune the dish by searching for the strongest signal. These buttons may be named Autotune or Dish Tuning. By pressing the dish position buttons, you may find that your receiver will display a dish position on your screen. Starting on one channel that you know something should be on, will help you recognize what satellite your dish is pointing to. As you are moving the dish position between satellites, the channel that you start on will be the same channel that the receiver will be looking for on other satellites. On a Motorola 4dtv receiver, you can view the dish position, the skew, and the signal quality on the screen, while making the adjustments. To adjust the dish position on a Motorola 4dtv receiver, first press OPTIONS-6-4-4 on your remote control, then press ENTER on the highlighted satellite you are adjusting. This puts your receiver in a programming mode. Use your arrow keys to select dish position and manually adjust the 4 digit dish position with your arrow keys until the desired picture appears in the background. Then store your settings by pressing Go Back, then ENTER, then Go Back 4 more times until your channel appears in full screen. Analog-only receivers work in similar ways. East and West buttons, or left and right or up and down arrows, adjust the dish position. Skew, or Polarity adjustment Some receivers’ remote controls have a polarity, or skew adjustment buttons, while other receivers have a programming mode with these adjustments as an option. Your owner’s manual will tell you how to locate the skew/polarity features of your receiver. For a Motorola 4dtv receiver, the skew adjustment is found while in the programming mode. Get to this mode by pressing Options-6-4-4-Enter. Using your arrow buttons, highlight the areas that show H or V numbers. This is the manual skew adjustment area. You will find that for one channel, only the H setting or only the V setting is possible to adjust. That is because the channel is either a vertical channel or a horizontal channel. Also, you may choose the auto-peak skew adjustment, which should automatically determine whether the channel is a horizontal or vertical channel. |