Trail Life Communications Technology – Requirement 1

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Identify 5 kinds of communication technology, list examples of devices in your home that use each kind and do the following:

  • Telephones: Traditional landline phones and mobile phones (smartphones) are primary tools for voice communication, allowing for direct conversations with family and friends, and also for accessing services. 
  • Smartphones: These devices offer a wide range of communication capabilities, including voice calls, text messaging, video calls, social media, and access to the internet, making them versatile tools for both personal and professional communication. 
  • Computers: Computers, including laptops and desktops, are essential for written communication (emails, instant messaging), accessing online resources, video conferencing, and engaging in social media. 
  • Tablets: Tablets are portable devices that offer a balance between the convenience of a smartphone and the larger screen of a computer, enabling communication through video calls, messaging apps, and internet browsing. 
  • Televisions: Televisions are used for watching news, entertainment, and video calls. They can also be used for accessing online services through smart TV apps. 

A. Explain the difference between wired and wireless communications devices.

Wired communications devices: Wired communication refers to the transfer of data over physical cables or wires, also known as wireline communication.  (ex: Ethernet networks, Telephone networks, Cable television or internet access,  Fiber-optic communication)

Wireless communications devices: Wireless communication refers to the transfer of data between two or more points without the use of an electrical conductor or any other continuous directed means of transmission.  (Ex: Wi-Fi networks, Bluetooth, Cellular networks, Satellite communication

B. Explain the difference between broadcast and private communications.

Broadcast : Broadcasting involves transmitting information, news, entertainment, or other content to a large, dispersed audience through electronic media like radio, television, or the internet

  • One-to-many: A single source transmits to many receivers.
  • Public: Intended for general consumption, not a specific individual or group.
  • Unidirectional: Typically, the audience can only receive the message, not respond directly.
  • Examples: Television news broadcasts, radio talk shows, online streaming, social media posts intended for a large audience. 

Private communications: Private communication involves transmitting information between two or more individuals with a reasonable expectation of privacy.

  • One-to-one or one-to-few: Intended for a specific recipient or a small group.
  • Private: Intended for confidential or personal use, not for public consumption.
  • Bidirectional: Allows for two-way communication and interaction.
  • Examples: Phone calls, text messages, emails, private social media messages, face-to-face conversations.

C. Explain how 911 dispatch service works and when is it used.

How 911 Dispatch Works:

  • Calling 911:
    When you dial 911, your call is routed to a local PSAP, also known as a 911 call center or emergency communication center. 
  • Call-Taker/Dispatcher:
    A call-taker or dispatcher answers the phone, and they will ask you a series of questions to understand the nature of the emergency, your location, and other relevant details. 
  • Gathering Information:
    The call-taker/dispatcher will document the information into a computer-aided dispatch (CAD) system, which helps them prioritize and track the incident, as well as the status of responding units. 
  • Dispatching Resources:
    Based on the information gathered, the dispatcher will determine which emergency services (police, fire, or EMS) are needed and dispatch the appropriate resources to the scene. 
  • Coordinating Response:
    The dispatcher will also coordinate with the responding units, providing updates and instructions as needed. 
  • Pre-Arrival Instructions:
    In some cases, the dispatcher may provide pre-arrival instructions to the caller, such as how to provide first aid or how to stay safe until help arrives. 
  • Secondary PSAPs:

    In some cases, a call may be transferred to a secondary PSAP, which may specialize in handling specific types of emergencies, such as fire or medical emergencies. 

When to Use 911:

  • Life-Threatening Emergencies:

    911 is for situations where there is an immediate danger to life or property, such as:

    • Crimes in progress: A crime that is currently happening.
    • Fires: A fire that is out of control or endangering lives.
    • Medical emergencies: A medical condition that requires immediate medical attention, such as a heart attack, stroke, or severe injury.
  • Do Not Use 911 for:
    • Non-emergency situations: Do not call 911 for non-emergency situations, such as lost keys, a broken window, or a minor traffic accident.
    • To ask questions: Do not call 911 to ask questions about police or fire services.
    • To report a crime that has already happened: If a crime has already occurred, you should call the non-emergency number for your local police department. 

D. Explain the use of the emergency broadcast services such as National Weather Service Radio and the Emergency Alert Service

National Weather Service Radio (NOAA Weather Radio):
  • Function: NOAA Weather Radio (NWR) is a nationwide network of radio stations broadcasting continuous weather information directly from the National Weather Service (NWS) offices. 
  • Content: NWR broadcasts official weather warnings, watches, forecasts, and other hazard information 24/7. 
  • Activation: During severe weather events, NWR broadcasts can interrupt normal programming to deliver urgent alerts. 
  • Technology: NWR uses specific frequencies in the VHF band (162.40 to 162.55 MHz). 
  • Alerts: Many emergency messages will automatically turn on weather radios and broadcast the emergency bulletin. 
Emergency Alert System (EAS):
  • Function: The Emergency Alert System (EAS) is a national public warning system that allows federal, state, and local authorities to broadcast emergency alert and warning messages across multiple channels. 
  • Participants: EAS participants include radio and television broadcasters, cable systems, satellite radio and television providers, and wireline video providers. 
  • Alert Types: EAS is used to deliver alerts for various emergencies, including:
    • Imminent threats
    • AMBER Alerts 
    • Weather warnings and watches 
    • Civil Emergency Messages 
    • Presidential Alerts during a national emergency 
  • Activation: The NWS uses NWR as its primary means to activate EAS. 
  • Integration: EAS is part of the Integrated Public Alert and Warning System (IPAWS), which also includes Wireless Emergency Alerts (WEA). 
Wireless Emergency Alerts (WEA):
  • Function: WEA is a nationwide text emergency alert system that sends short emergency messages to WEA-capable phones during an emergency. 
  • Content: WEA messages can include information about:
    • Extreme weather and hydrologic warnings 
    • Local emergencies requiring evacuation or immediate action 
    • AMBER Alerts 
    • Blue Alerts 
    • Presidential Alerts during a national emergency
  • Delivery: WEA messages are sent automatically to WEA-capable phones without requiring any signup. 
  • Partnerships: WEA is a partnership between FEMA, the FCC, and wireless providers. 
  • IPAWS: WEA is part of FEMA’s Integrated Public Alert and Warning System (IPAWS).