Dr. Hesham M. ELBADAWY, NTI, Egypt Egyptian Experience in Establishment and Application of Safety Conditions for Mobile Base Stations Dr. Bahnasy M. NOSSIER Dr. Hesham M. ELBADAWY, NTI, Egypt

Contents Introduction Egyptian Safety Codes Statistics and Configurations for Macro BTS Statistics and Configurations for Micro BTS Configurations for IR Links Main Achievements Conclusion

Introduction The Egyptian Experience for the Mobile BTS safety codes has been realized by executing the Egyptian national project for auditing and monitoring for the mobile base stations. The project has begun since 2001 The project is as a result of successful cooperation between the National Telecommunication Institute (NTI) and the National Telecommunication Regulation Authority (NTRA) The main objective of this project is to apply the certified protocols for both of the old installed base stations and newly ones.

Egyptian Safety Codes Three Protocols have been issued to regulate the installation of micro and macro sites, approved by 3 ministries : -Communications & Information Technology -Environment Affairs -Health and Population Macro, Micro, and IR safety guide lines have been issued based on the research studies that had been done by the Egyptian research groups from NTI and TRA and according to the international safety guide lines. The Egyptian safety codes may be summarized as follows:

Summary of the Egyptian Safety Code 1- Macro BTS The Antenna heights (15m to 50m) 6 m in the main beam 2 m in the back beam The antenna is above the surrounding buildings in the radius of 10 m The Maximum Permissible Exposure (MPE) Limit is 0.4 mW/cm2 The antenna height of the pylon on the roof top is not less than 6 m The antenna must be fixed on the concrete structure roof top

2- Micro BTS The Antenna heights (not less than 2.5m) 0.5 m in the main beam Small gain antenna The MPE is 0.4 mW/cm2

3- IR The unit must be mounted on 3 m pole at the middle of the roof top or 6m pole for street mounted units the main beam must be directed completely to the outer space of the roof top The MPE is 1 mW for the aperture of 7 mm

Macro-cells measured in 2001

Macro-cells measured in 2002

Macro-cells measured in 2003

Macro-cells measured in 2004

Macrocells measured per Governorate in 2001 (June-December)

Macro-cells measured per Governorate in 2002

Macro-cells measured per Governorate in 2003

Macro-cells measured per Governorate in 2004 (January-March)

(Re-measured / New) Macro-cells measured in 2004 1st Quarter

Configuration of Macro BTS Roof Top: Poles on the boarder of the roof Pylon Penthouse Highway Towers Water Tanks Mobile BTS (Cell on wheels)

Measured micro-cells in 2002

Measured micro-cells in 2003

Measured micro-cells in 2004

Micro-cells measured in 2002

Micro-cells measured in 2003

Configuration of Micro BTS Outdoor: Patch on Poles Side arm patch Side arm omni Indoor: Ceiling Mounted omni Wall mounted patch

Measured IR in 2004

Configuration of IR Pole mounted Penthouse mounted Roof top edge mounted

Main Achievements Most of installed sites had been measured Establishment of re-auditing program Surveys cover all of the Governorates Measures about 100 sites per month

Conclusion Egypt has issued three protocols for Macro, Micro, IR sites. Issuing procedure for site acceptance certificate Continuosly revises & re-measure of the installed sites. In order to check the current situation of the site. Updating of our protocols based on the experience gained from practical surveys and following new researches in this field.