Department
of Telecom
2025-2026
By Reth Sengvisoth
https://camrg.com
Content
Introduction to Telcommunication
Skills We offer
Job Opportunity
Study Tour
Activities
Our Alumni
What is Telecommunications?
Telecommunications refers to the transmission of information over long distances using various
technologies such as telephones, radio, television, satellites, and the internet. It enables
communication between people and devices using wired and wireless networks, playing a crucial role
in the exchange of voice, data, and multimedia.
Impact of Telecommunications on the Modern World
1.Global Connectivity
Facilitates instant communication across the globe via mobile phones, emails, and
video calls.
Enhances collaboration in businesses, education, and personal relationships.
2. Economic Growth
Supports e-commerce, banking, and financial transactions.
Creates jobs and drives innovations in tech industries.
3.Education and Remote Learning
Enables online learning platforms, virtual classrooms, and remote education access.
Expands educational opportunities for students worldwide.
4.Healthcare and Telemedicine
Provides remote consultations, diagnostics, and treatments.
Improves healthcare accessibility, especially in rural areas.
5.Entertainment and Media
Revolutionizes content streaming, gaming, and social media.
Expands audience reach for digital creators and businesses.
6.Smart Cities and IoT (Internet of Things)
Enhances city infrastructure with smart grids, automated traffic control,
and security monitoring.
Connects devices to improve efficiency in homes and industries.
Skills We Offer
1. Network Fundamental
Network fundamentals cover the basic concepts of networking, including how devices communicate,
types of networks, protocols, and security principles
Switch
Server
Router
2. Cybersecurity
Cybersecurity is the practice of protecting systems, networks, and data from cyber threats such as hacking, malware,
phishing, and unauthorized access. It involves using technologies, processes, and best practices to ensure the
confidentiality, integrity, and availability of information.
Cyber Officer Hacker
Intro to Cyber Python Fundamental Linux Fundamental
cybersecurity concepts:
Confidentiality – Ensuring that only authorized individuals can access sensitive information.
Integrity – Protecting data from unauthorized modification or tampering.
Availability – Ensuring that systems and data remain accessible when needed.
Authentication & Authorization – Verifying user identities and granting appropriate access.
Risk Management – Identifying, assessing, and mitigating cybersecurity risks.
3. Satellite Communications
Satellite Communication (SATCOM) is the use of satellites to transmit data, voice, and
video signals over long distances. It enables global connectivity by relaying signals
between ground stations and remote locations.
Satellite Relay
Uplink Downlink
Uses of SATCOM
Internet & Telecommunication – Providing connectivity in remote areas.
Broadcasting – TV and radio transmission.
Navigation & GPS – Location-based services.
Military & Defense – Secure communications and surveillance.
Disaster Response – Emergency communication in affected areas.
4. Mobile Communications
Mobile communications refer to the transmission of voice, data, and multimedia over
wireless networks, allowing users to communicate while on the move. It relies on
technologies such as cellular networks (e.g., 3G, 4G, 5G) and Wi-Fi. Mobile
communication systems use radio waves to connect devices to base stations, which
relay signals through a network infrastructure.
BTS 2
power cabinet
BTS 3
Fiber Optic underground
power cabinet BTS 1 power cabinet
The World Fiber Optical Line
5. Ham Radio Communications
Ham radio communications, also known as amateur radio, is a wireless communication
method used by licensed operators for non-commercial purposes. It allows users to
communicate over short and long distances using radio frequencies allocated by regulatory
bodies. Ham radio operators use different modes like voice, Morse code, and digital signals to
transmit messages. It is widely used for emergency communication, experimentation, and
hobby activities
Our Radio Room
Ham Radio License Certified
Japanese Article has written about our ARRL License Certified
https://www.fbnews.jp/202310/special/
Job Opportunity
Study Tour
Union Development Group CO,.LTD.
PNN TV
Cambodia Air Traffic Control
Smart Axiata
Cellcard
Ezecom
EDOTCO
CBS TV
Activities
Amateur Radio Direction Finding ( ARDF)
Japanese Article has written about ARDF
https://www.fbnews.jp/202405/special/
Q0-100 Satellite Training Program
AMSAT ‘s article has written about Q0-100 Satellite Training Program at NPIC Campus
https://amsat-dl.org/kambodscha-xu-zum-erstem-mal-ueber-qo-100-aktiv/
Antenna Installation Training Program
Minister Chea Vandeth has visited Department of Telecom
H.E Chea Sereyvath , Head of Telecom Regulator of Cambodia has visited our Lab
JARL Ham Fair
Morse Code Training Kit in Japan
Our Alumni
Mr.Sokun Rothana Mr.Metrey Mr.Hphinan Hel
Ministry of National Defense Ministry of National Defense Junior NOC Analyst at Metfone
Mr.Ly Somnang Mr.Vann Kimhang Mr.Sok Sangha
Junoir Drive Test at Smart Axiata Cambodia Air Traffic Control Junior Network Management at EZECOM
Mr.Ponleu Ly Mr.Hao Leanghav Mr.Sopheak
Technical admin at Committee Technical support officer at PNN Technical support officer at SINET
Nation : លេខាធិការដ្ឋា ន គ.វ.អ.
Miss Yun Chansamdy Mr.BY Phakvoin Mr.Brospov Touch
Network Engineer at Smart Axiata Junior Radio Network Planning &Optimization Engineer Network support officer
Smart Axiata NeocomISP
Thank You
