Originally Posted by lateadopter2
... I can't get any of the digital versions (5.2, 2.1, 4.1, 11.1, etc.). I get a message that signal level is too low.
* Have you set the TV for Antenna input, as opposed to Cable/Satellite? The selection is located in the Terrestrial sub-menu of the Installation menu. Re-scan the channels if you need to do this.
If that's all set, basic troubleshooting is in order:
* Is the antenna aimed correctly? The "open" end of the antenna should face the signals. Pointing the antenna in the opposite direction is a common error.
* Is the antenna mounted on a mast so that it is level with the ground?
* Check the antenna carefully, making sure that the two phasing lines -- cris-crossing, bare aluminum wires parallel to and above the boom -- aren't touching each other anywhere. They can be separated by bending the wires slowly and carefully if need be.
* Is the Toshiba the only TV connected to the antenna, and if so, are you using an amplifier? DTV signals are much easier to over-amplify than analog broadcasts; too much amplification equals no reception. No amp should be necessary at that distance with a roof-mounted VU-90 connected to a single TV.
* The VU-90 is new, but what about the coax cable? Was that replaced at the same time? Old cable can be corroded, which will have an impact on digital reception as well.
* If it's new cable with factory connectors, it may be defective or damaged. Replacement may be in order.
* Did you make up the cable connectors yourself? Double-check all connections to be sure a small strand of the outer shield isn't touching the center conductor somewhere, creating a short.
* Swap out the matching transformer up at the antenna for a new one. Also known as a balun, the transformer couples the coax with the antenna terminals. Baluns can go bad.