The primary system to "scramble" a channel on a cable method was shown in 1971. In the 1st scrambling process, among the alerts utilized to synchronize the television image was eliminated if the sign was transmitted, then reinserted by a little gadget at The client's property. Later on scrambling programs https://trentonuoduo.bloggazza.com/2354911/new-step-by-step-map-for-cable-tv