This type of eye fatigue or eye strain is sometimes known as computer vision syndrome. It affects about 50%-90% of computer workers. Some estimates say computer-related eye symptoms may be responsible for up to 10 million primary care eye examinations each year.
MAST MOUNTED PREAMPLIFIERS. Chapter Eight-TV ANTENNA-MOUNTED AMPLIFIERS. A mast or TV antenna-mounted amplifier (preamp) is used primarily to eliminate snow on the TV screen.Snow is actually electrical noise that is generated by the TV receiver and other electrical devices.he preamp itself is mounted on the TV antenna boom or on the mast as close to the TV antenna as possible. The power supply unit is mounted indoors. Power is supplied to the preamp unit through the transmission line.
Therefore, in a case like this, the only way you could fix this problem is by purchasing an external TV tuner. Alternately, you can connect the antenna to the TV and use its internal TV tuner. To begin with, the TV tuner or the receiver system of your TV is analog.Moreover, since the 2009 digital switchover, over the air (OTA) antenna signals have become digital.he converter box, in this case, would work as your tuner. In this case, you would need an ATSC tuner in your television. What you have here is a NTSC tuner which is an old tuning system. Therefore, you would need to connect your TV and antenna to an ATSC Receiver to receive channels on your TV through the antenna.