How can I find what polarity is being transmitted where I park? With a digital signal it is all about the equipment reading the zeros and ones and when you have the wrong polarity it cannot read them and you get a 'No Signal' reading on the TV. You MUST match the polarity, it does not matter how strong the signal is, it will not work with the wrong polarity. Analogue signal was all about the signal strength.ĭigital signal however is very different. If the signal power is low, you will not get a picture at all. If the signal power is strong, this would result in a noisy analogue picture. With analogue signals, the signal loss for an antenna mounted with the wrong polarity is important. Since December 2013 Analogue has been fazed out. Some antennas can be rotated to pick up these signals and some will pick up both all the time. Some transmitters may send one channel vertical and another horizontal. This equates to around 15% of the viewing population because of the more limited range. The remaining 40% of transmissions will be sent out using a vertical signal. The vertical signals are lower powered and are intended for local broadcasts only. Some antennas will only pick up these signals. This equates to around 85% of the viewing population due to the stronger signal. Horizontal signals are always the most powerful and will travel much further from the transmitter than the vertical signals.Īround 60% of the Australian channels are transmitted using horizontal signals. You will miss these channels unless you understand and prepare.
#RV ANTENNA BOOSTER PROBLEMS TV#
There is an 85% chance you will be getting your TV via a horizontal signal.īut those that travel in a Caravan, Motorhome or Camper Trailer will be highly represented in the areas that use vertical signals for some or all of their channels. When you are at home you don't need to worry about Signal Polarity because your antenna will be set for your local area.
It sounds technical, but it can be a simple and important concept with the digital TV transmissions. What is Signal Polarity and is it important? You don't always need to spend more money to get a better picture on your TV.
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