Intensive VSAT Field and WIFI Systems Engineering
Intensive VSAT Field and WIFI Systems Engineering
Intensive VSAT Field and WIFI Systems Engineering
Field Engineering
Training Course
A theoretical and practical skills transfer event for ield engineers, support engineers and operational managers as applicable to DVB/TDMA VSAT networks, organized by Africa eDevelopment Research Centre in association with Comsatpro of South Africa
SUUNTO Bearing Compass & Clinometer The Suunto Tandem is a liquid-illed precision compass and clinometer in one compact aluminum housing that is easy to use and rugged enough to protect against impact, corrosion and water.
GARMINs eTrex Personal Navigator This compact, easy-to-operate GPS is perfect for measuring and recording of location coordinates with the accuracy required for VSAT network control systems. Handheld Tools The perfect set of handheld tools to ensure that you have the correct tool for every need while at the same time being lightweight and convenient to carry under all circumstances. All of which are supplied in an easy and convenient canvass bag.
More than
1,000
Stadler Brits is a Global VSAT Forum (GVF) qualiied instructor/ trainer.
Radyne Comstream Paradise Datacom Gilat Skystar HNS GW series ViaSat Linkstar iDirect - Satellite communication engineering course University of Surrey Link Budget Engineering - Panamsat During this period he also developed a VSAT course for the company which he also presented throughout Afric
Stadler has had over 17 years experience in Radio Frequency (RF) with a career that commenced in the South Africa Air Force. He has been in the African Market for almost 15 years and worked in numerous countries in Africa doing sales, installation and now engineering design makes me an experienced satellite communications engineer. He has attended most satellite equipment vendor courses and most of the satellite engineering courses available in the industry. This includes:
Muthaiga,
Summarize the basic attributes and advantages of the following WLAN standards and amendments
o o 802.11a 802.11no o o 802.11g 802.11b
Comprehend the differences between, and explain the different types of spread spectrum technologies and how they relate to the IEEE 802.11-2007 standards (as amended and including 802.11n-draft2.0) PHY clauses
o o Modulation Coding
Identify and apply the concepts which make up the functionality of spread spectrum technology
o o o o o Co-location Channel Centers and Widths (all PHYs) Primary and Secondary Channels Overlapping and Non-Overlapping Channels Carrier Frequencies o o o o o Throughput vs. Data Rate Bandwidth Communication Resilience Physical Carrier Sense (CSMA/CA) Virtual Carrier Sense (NAV)
RF FUNDAMENTALS
Define the basic units of RF measurements.
o o o o Wireless LANs Wireles Milliwatt (mW) Decibel (dB) o o o o dBm dBis PANs Wireless MANs Wireless WANs
Define and differentiate between the following physical layer wireless technologies
o o HR/DSSS ERP o o OFDM MIMO
Define concepts which make up the functionality of RF and spread spectrum technology
o o o OFDM & HR/DSSS channels Co-location of HR/DSSS and OFDM systems Adjacent-channel and co-channel interference o o WLAN / WPAN co-existence CSMA/CA operation half duplex
Identify the use of the following WLAN accessories and explain how to select and install them for optimal performance and regulatory domain compliance
o o o RF cables RF connectors Lightning Arrestors and grounding rods
RF MATHEMATICS
Understand and apply the basic components of RF mathematics
o o o o o o o Watt Milliwatt Decibel (dB) dBm dBi dBd SNR o o o o o o RSSI System Operating Margin (SOM) Fade Margin Link Budget Intentional Radiator Equivalent Isotropically Radiated Power (EIRP)
Explain the applications of physical RF antenna and antenna system types and identify their basic attributes, purpose, and function
o o Omni-directional / Dipole antennas Semi-directional antennas o o Highly-direction antennas Sectorized antennas
Identify the use of the following WLAN accessories and explain how to select and install them for optimal performance and regulatory domain compliance.
o o o o o Amplifiers Attenuators Lightning Arrestors Mounting Systems Grounding Rods/Wires o o o o Towers, Safety Equipment, and Concerns RF Cables RF Connectors RF Signal Splitters
SITE SURVEYING
Understand and describe the requirements to gather information prior to the site survey and do reporting after the site survey
o o o o o o o o Gathering business requirements Interviewing managers and users Defining physical and data security requirements Gathering site-specific documentation Documenting existing network characteristics Identifying infrastructure connectivity and power requirements Understanding RF coverage requirements Client connectivity requirements o o o o o o o o Antenna use considerations Understanding data capacity and client density requirements VoWiFi considerations for delay and jitter Client connectivity requirements Antenna use considerations Aesthetics requirements Tracking system considerations WIPS sensor considerations
Define and differentiate between the following WLAN system architectures and understand site survey concepts related to each architecture. Identify and explain best practices for access point placement and density.
o Multiple Channel Architecture (MCA) o Single Channel Architecture (SCA)
Define the need for and the use of a manual site survey tool and differentiate between the following manual site survey types
o Active surveys o Passive surveys
Define the need for and use of a protocol analyzer in a manual site survey as it relates to the following
o Identifying, locating, and assessing nearby WLANs
Differentiate between site surveys involving networks with and without a mesh access layer
o o o Define the need for and use of a spectrum analyzer in a manual site survey Identification and location of interference sources Differentiation of Wi-Fi and non-Wi-Fi interference sources
Understand industry best practices for optimal use of directional and omni-directional antennas in site surveys
Explain the technical aspects involved in performing manual and predictive RF site surveys. (These happen as part of the RF site survey)
o o o Locating and identifying RF interference sources Defining AP and antenna types to be used Defining AP and antenna placement locations o o o Defining AP output power and channel assignments Defining co-channel and adjacent-channel interference Testing applications for proper operation
Describe site survey reporting and follow-up procedures for manual and predictive RF site surveys. (These happen after the RF site survey)
o o Reporting methodology Customer reporting requirements o o Hardware recommendations and bills of material Application analysis for capacity and coverage verification
Identify the equipment, applications, and system features involved in performing predictive site surveys
o o o o Predictive analysis / simulation applications (also called RF planning and management tools) Integrated predictive site survey features of WLAN controllers Site survey verification tools and/or applications Indoor site surveys versus outdoor site surveys
Identify the equipment, applications, and methodologies involved in performing manual site surveys
o o o o Site survey hardware kits Spectrum analyzers Protocol analyzers Active site survey tools and/or applications o o o Passive site survey tools and/or applications VoWiFi site survey best practices (dB boundaries, antenna use, balanced links) Manufacturers client utilities
Recognize common problems associated with wireless networks and their symptoms, and identify steps to isolate and troubleshoot the problem. Given a problem situation, interpret the symptoms and the most likely cause. Problems may include:
o o o o o o Decreased throughput Intermittent or no connectivity Weak signal strength Device upgrades Co-channel and adjacent-channel interference RF Noise and noise floor o o o o o
Narrowband and wideband RF interference Multipath (in SISO and MIMO environments) Hidden nodes Near/Far Weather
Identify the purpose, features, and functions of and the appropriate installation or configuration steps for the following types of antennas.
o o o Omni-directional / dipole Semi-directional Highly-directional
NETWORK SECURITY
Identify and describe the strengths, weaknesses, appropriate uses, and implementation of the following IEEE 802.11 security-related items:
Legacy Security Mechanisms WEP Cipher Suite Open System Authentication Shared Key Authentication MAC Filtering SSID Hiding Modern Security Mechanisms WPA- / WPA2-Enterprise WPA- / WPA2-Personal Wi-Fi Protected Setup (WPS) TKIP and CCMP Cipher Suites 802.1X / EAP Framework Preshared Key (PSK) / Passphrase Authentication Additional Mechanisms Secure Device Management Protocols (HTTPS, SNMPv3, SSH2) Role Based Access Control (RBAC)
Describe, explain, and illustrate the appropriate applications for the following wireless security solutions
Wireless Intrusion Protection System (WIPS) Security Monitoring, Containment, and Reporting Performance Monitoring and Reporting Troubleshooting and Analysis Protocol and Spectrum Analyzers Security and Performance Monitoring Troubleshooting and Analysis