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 1^st location and note the Lat – Long and AMSL at  tower position and save it on GPS.

    2.   Go to 2^nd 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 2^nd location to 1^st 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. .