Tuesday 19 June 2012

P2P LOS Survey Procedure


PROCEDURE OF DOING P2P LOS SURVEY
LOS survey must for any radio link operating on or above the UHF band. Here I will discuss about the procedure of doing the LOS survey.

Assets Required for LOS surveys are

  • GPS
  • Compass
  • Binocular 
 
PROCEDURE :
    1.   Go to 1st location and note the Lat – Long and AMSL at  tower position and save it on GPS.
    2.   Go to 2nd location and note the Lat- Long and AMSL at tower position and save it on GPS.
    3.   Make note that if the cable used is CAT5 , Max length supported will be 100 mtr .
    4.   Calculate the azimuth angle between the two locations and air distance from the taken Lat – Long of both the locations.
    5.   Now move from 2nd location to 1st location with route tracing using GPS.
    6.   Note the Lat- Long and AMSL of the higher obstacles such as natural terrains , buildings , flyover or any other obstacles coming in the line of sight .   
7. Note the height of obstacles.
8. Map the Lat-Long on google earth , observe the AMSL at every point on the LOS path.
9.  Now prepare the survey report and suggest the minimum height required for antenna mounting at both the locations with 60% of first Fresnel zone clear at every point on the LOS path. .


2 comments:

  1. please help me how to do LOS path survey using GPS..My mail id is darshad.ashraf@gmail.com..

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    Replies
    1. hi Mr. Darshad , In thid blog I have tried to explain the procedure of LOS survey using GPS .
      Pls let let me know what is the doubt that you have , You have read other blogs ( fresnel Zone , LOS ) for further clarification.

      Please let me know if there is any doubt . your queries are always welcome..

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