All Details & GPS Waypoint

Telegraph Hill 163m (535ft)

Summit Feature: No feature: crop field note: level summit area (Survey: Abney level)
Classification: P30 Tump.
OS Grid Ref: SU783149 (10 figure Grid Ref: SU7832414952).
UK Area: 42 - South-East England & the Isle of Wight (OS Maps 1:50k 197. 1:25k OL8,120.)
Latitude: 50.928703, Longitude: -0.88687, Height: 163 metres (535 feet)
Prominence: 40 metres (131 feet)
Unique Waypoint POI Name: 0163.- (DoBIH Hill ID: 18476)

Associated Parent Hill:
   Butser Hill (270m, p158)

External Links for Telegraph Hill:
-GeoHack link... -OS Map Bing link... -Google Map link... -Geograph link... -Telegraph Hill on

Data courtesy of the Database of British and Irish Hills

Selected mapping: Google or Bing / Ordnance Survey

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Telegraph Hill List & GPS Waypoints:

Climbed Telegraph Hill? Log in to tick it off...

  • '0163.-' SU783149 Telegraph Hill (163m, p40)

Member's Comments on Telegraph Hill...

  • Chris Pearson says...
  • From London to Portsmouth is about 60 miles. The year is 1796. What was the shortest time in which you could send a message and get a reply between the two towns? The answer is fifteen minutes using telegraph apparatus on hill tops (about 10 mies apart)A shutter telegraph station had six pivoted boards, which could be swivelled by the ropes leading down to the cabin, so they were either visible or edge-on. Six shutters gives a 6-bit binary code, allowing 63 non-zero states to be transmitted. These were allocated as the 26 letters of the alphabet, ten numerals, and some useful preset sentences, such as "Defeat the French Navy immediately".(!) Data-compression was used in the form of omitting the vowels in common words. The preparatory signal could be sent from London to Portsmouth, and be acknowledged in two minutes; an early version of the "ping".
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Telegraph Hill has been climbed by...

Andrew Brown Areluctant-triggeR Chris Pearson jonglew rhw Sprog stevent0809


Total = 1 All
Data courtesy of the Database of British and Irish Hills


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