yaraa issa

Radar,
Instrument Landing Systems (ILS),
Doppler VHF Omni Directional Range (DVOR),
Distance Measuring Equipment (DME),
Voice Communication System (VSC),
Voice and Data Recording System,
Aeronautical Fixed Telecommunication Network (AFTN)

and i did other trainings at NATIONAL BROADCASTING NETWORK (NBN)-Beirut concentrating on :
Station Communication
Studio/ Television
Satellite Communication
OB Van

and another one in OGERO Company- Beirut-Justice concentrating on :

GSM network including the network structure and components
Cell Planning
Frequency Planning
Concept of Link Budget
Signaling SS7 in GSM and Authentication issues in GSM
Using special commands to control the switching platform and the operation of the international switching process

and i took courses at ngn Telecom company-Beirut which are :

GSM System Survey
Ericson WCDMA System Overview
GPRS System Survey
ATM
IP Networking

and i also taught Physics and mathematics Private Lessons Intermediate and Secondary Levels