Will an old analog antenna work for digital TV
You can get varied types of antennas in the market, each of them having unique features. But what if you already have an old antenna in your house. This may leave you with a question whether the old antenna would work just well for your new digital TV. The shift from analogue to digital has seen a lot of new discoveries. But this does not mean that you would need to change your old TV antenna for a new one. The old analogue TV antennas work just the way as it should in picking up the signals. The antennas which were made for picking up the analogue signals tend to work just the same manner as the case with digital or the high-definition signals. Hence it would be wrong to say that you would need a new special type of antenna for picking up digital signals so that it works on your digital TV as well.
The main issue is not really about analogue or digital. It has to do more with the channel frequency. In case if the analogue signal has been at a certain frequency range for example, VHF or UHF and the digital one that has replaced it tends to be in the UHF band then in such case probably you would need to go in for a new antenna. But again, this is nothing to do with the signal type being picked up. It is more about the frequency range.
Basically all the antennas work in a similar manner. The only difference being the quality of signals that get picked up. For receiving the signals, the antenna detects the radio waves vibration that would be at a certain frequency in the air. This would lead to the electrons which are present in the antenna to start accelerating back and forth. In this process of acceleration, it starts to generate signals which then get transferred across the terminals to the electrical circuit leading to a change in voltage. Mostly the way signals are sent work in the similar manner but in a reverse form.
Hence antennas old or new, does not make much of a difference. But the size of the antenna does matter. In case if the old antenna is not big enough then it would not be able to pick up all of the signals. The shape as well as the size of the antenna would make a difference in terms of reception. When the antennas are larger, it would start collecting more energy so that it can also pick up weaker signals. The varied shapes of antennas are said to be good for picking up signals which are in the certain frequency bands for example, UHF, VHF and the HF bands. The shape would also be determining basically in which direction the antenna would be picking up the signals from.
If you have an
old antenna, first test whether it is able to pick up all the channels present
in your area. In case if it starts showing trouble then it the better idea
would be to select a new one.