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rb:coventrycable [04/05/2018 10:03]
andrew [Consumer Distribution]
rb:coventrycable [19/05/2018 16:04] (current)
andrew [Distribution]
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 ====== Coventry Cable TV ====== ====== Coventry Cable TV ======
 +
 +Now defunct, the original build was for 450MHz bandwidth carrying about 30 channels. It was built and operated by BT and along with the likes of Milton Keynes was one of the first franchises in the UK.
  
 ===== Headend ===== ===== Headend =====
  
 +Located at the end of Whitley Village, the building is now demolished.
  
 +
 +Satellite TV receivers & cable tv modulators and Launch Amplifiers.
 +
 +{{:​rb:​covcable-headend_.png?​200|}} {{:​rb:​covcable-launchamp.png?​200|}}
 +
 +Master Control room - monitoring all the channels being transmitted and some of the playout equipment.
 +
 +{{:​rb:​covcablemcr1.png?​200|}} ​  ​{{:​rb:​covcablemcr2.png?​200|}}
 ===== Supertrunk ===== ===== Supertrunk =====
  
-The Supertrunks radiated out from the Head End to distribution sites prior to feeding the local distribution network. These consisted of several amplifiers with one input and one output boosting the signal. The amplifiers were nothing special, just the same as the DLA amplifiers but run at lower gain (ie. less noise added to the signal), the supertrunk coax was about 2 inches in diameter for minimum signal loss.+The Supertrunks radiated out from the Head End to distribution sites prior to feeding the local distribution network. These consisted of several amplifiers with one input and one output boosting the signal. The amplifiers were nothing special, just the same as the DLA (Distribution Launch Amplifier) ​amplifiers but run at lower gain (ie. less noise added to the signal), the supertrunk coax was about 2 inches in diameter for minimum signal loss. Due to the inflexibility of the low loss cable, the link to the cabinet was on reduced size cable with the joint in a chamber adjacent to the cabinet (left hand side next to road below)
 These were located in smaller green fibreglass cabinets and were all line powered from either end of the trunk. These were located in smaller green fibreglass cabinets and were all line powered from either end of the trunk.
  
 +{{rb:​20180519_115423.jpg?​400|}} ​ {{rb:​20180519_115350.jpg?​150|}}
 +
 +This seems abandoned, the door to this has been lying on the grass for several months.
 ===== Distribution ===== ===== Distribution =====
  
-Example DLA cabinet, this appears completely abandoned, the door is missing, the mains electricity is severed and the input and output coax cables have been cut and removed. These were all grey versions of the BT green fibreglass cabinet used sometimes for the phone distribution PCPs:- \\+Example DLA (Distribution Launch Amplifier) ​cabinet, this appears completely abandoned, the door is missing, the mains electricity is severed and the input and output coax cables have been cut and removed. These were all housed in grey versions of the BT green fibreglass cabinet used sometimes for the phone distribution PCPs:- \\
 {{:​rb:​20151006_175303.jpg?​200|Distribution Launch Amplifier}} {{:​rb:​20151006_175303.jpg?​200|Distribution Launch Amplifier}}
  

rb/coventrycable.1525424624.txt.gz ยท Last modified: 04/05/2018 10:03 by andrew