TV…interference suppression

2-12 — elektor february 1980 TV interference suppression Nearly everybody will agree that interference on TV can be extremely annoying. Interference can be caused, among other things, by local transmitters. Usually, however, this can be dealt with in a fairly simple and effective way. So what do you do? Well, after reading the above, it would seem an obvious conclusion that it is probably better to do without an aerial amplifier altogether. For that matter, very often one is included in the aerial system "just to be on the safe side", without it being strictly necessary. It is a much better (and cheaper!) idea to simply use a good TV aerial which is a powerful "amplifier" anyway (and will have a more accurate directional effect and an improved front-back ratio — both important factors). If, on the other hand, you cannot manage without an amplifier, it is advisable to use tuned aerial amplifiers (also known as channel amplifiers). These, being narrow-band, do not pick up unnece...