Quote:
Originally Posted by dark
The boxes themselves don't have to have talkback disconnected. Having talk-back disconnected doesn't cause any issues to other subscribers. To prevent the modified boxes from talking back a noise blocker could be fitted to the line to accomplish this. Hence the name "noise blocker" ----no interverence...
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But that is not how it was done in the beginning is it. There
was 
Plenty of the original boxes out there that had to have had the atermels lifted to gain the box number. If they were not replaced correctly or the tuner replaced correctly then they did make noise on the network.
I have seen the noise on the network that dodgy boxes make via the tools in the headends and hubsites. The noise blockers were made for the problem of noisey boxes out in the field were do you think they came from in the first place