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The Islander Newspaper Ascension Island
  Issue No. 2235 Online Edition Friday 24 October 2014 
Home | Categories | Commerce Please tell us what you think of this article. Tell a friend Print Friendly

Ascension : Cable & Wireless completes major Satellite Earth Station Maintenance
Submitted by The Islander (Raymond Ellick) 23.02.2006 (Article Archived on 09.03.2006)

The Cable & Wireless Earth Station, Intelsat designation ASC-02B, received major planned maintenance work during January/February 2006.

Cable & Wireless completes major Satellite Earth Station Maintenance


The Cable & Wireless Earth Station, Intelsat designation ASC-02B, received major planned maintenance work during January/February 2006. The tripod assembly legs required replacement due to corrosion. The replacements were supplied by NEC in Japan and were made with high precision in order to directly replace the existing legs.


Due to the length of time required for ASC-02B downtime a restoration antenna was installed to temporarily carry the international traffic. A 3 .7m Andrew antenna, Intelsat Designation ASC-03F 1, was installed and verification tested before carrying the Ascension international telecom traffic on Saturday 04 Feb 2006.


Following ASC-02B pre-maintenance testing and sub-reflector measurements the tripod assembly, including sub- reflector, was lifted from the antenna and dismantled. The tripod assembly was assembled with the new tripod legs and lifted back and bolted into the antenna main reflector. Final sub-reflector adjustments and Intelsat re-verification testing was completed before the antenna was brought back into service on Tuesday 14t1 Feb 2006.


The ASCO2B antenna LNA (Low Noise Amplifier) system was also replaced and the antenna mechanical inspection was performed during the downtime period.
There were planned telecom outages during the essential maintenance work and Cable & Wireless would like to thank valued customers for their patience, and regrets any inconvenience caused.



The team who successfully completed the major maintenance work were visiting Test Engineer Khalid Mahmood, Mechanical Engineer Bob Burst, Mechanical Technician Dave Murrell and local staff Paul Bennett, Nicky John, Alan Thomas and Nicky Augustus. Rory Simpson a postgraduate working for C&W UK was also on site for work experience. Interserve provided the hire of crane and cherry picker.


The ASC-02B Earth Station is an Intelsat Standard B 11 Metre Earth Station. This Earth Station currently works to the Intelsat 901 satellite, which is located at 342 Degrees east and is the Cable & Wireless International Gateway for Ascension Island telecom traffic.

Some C& WEarth Station History
The first Cable & Wireless Earth Station was installed on Ascension Island. The ASC-JN station with a 42fi dish provided support communications for the US Apollo space project and was brought into service in 1966. The ASC-JN completed its service and was eventually stowed and depowered on the 23 September 1985. The ASC-02B Earth Station was installed to replace ASC-JN and has provided a reliable service since 1983.

 

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