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Questions and Answers
Why might neighboring counties not interfere with each other on simplex channels?
Why might neighboring counties not interfere with each other on simplex channels?
What is the primary purpose of the Mayday Channel?
What is the primary purpose of the Mayday Channel?
Which of the following is NOT a characteristic of simplex channels?
Which of the following is NOT a characteristic of simplex channels?
What is the designated channel for communication between fire suppression forces within the state?
What is the designated channel for communication between fire suppression forces within the state?
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Who is primarily responsible for monitoring the Mayday Channel?
Who is primarily responsible for monitoring the Mayday Channel?
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Flashcards
Simplex Channels
Simplex Channels
Simplex channels allow communication without needing confirmation; they are used region-wide.
Mayday Channel
Mayday Channel
A specific simplex channel for reporting firefighter distress monitored by chief officers.
Incident Commander Role
Incident Commander Role
The Incident Commander maintains communication with Dispatch on assigned talkgroups during incidents.
State Fire Network
State Fire Network
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Radio Discipline
Radio Discipline
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Study Notes
Simplex Channels
- Simplex channels allow users to talk over each other without warning.
- Strict radio discipline required while using simplex channels.
- Listen before transmitting to ensure the air is clear.
- Channels A-13, A-14, A-15, and B-15 are region-wide, for Multnomah, Clackamas, and Washington Counties.
- Simplex channels assigned at an incident will not be received, monitored, or recorded by the Dispatch.
- The Incident Commander must maintain communications with Dispatch.
- Simplex mobile radios have a coverage range of 35 watts.
- Portable simplex radios have a lower power output, about 3 watts.
Mayday Channel
- A region-wide simplex channel for all fire radios in Multnomah, Clackamas, and Washington Counties.
- Dedicated for reporting firefighters in distress or communication loss.
- Chief Officers monitor the Mayday Channel in each county.
- The 16th position on the radio selector knob (in zones A, B, and C) accesses the Mayday channel.
- On-duty response chiefs have dedicated portable radios, assigned to the Mayday Channel. These radios are kept in chargers, and volumes are turned up.
State Fire Network (STATE FIRE)
- A state-wide VHF channel.
- Administered by the State Fire Marshal.
- Used by all organized fire suppression forces in the State.
- Enables tactical communications with other public safety agencies.
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Description
This quiz covers the critical aspects of simplex channels and Mayday protocols used in fire communications across Multnomah, Clackamas, and Washington Counties. It emphasizes the importance of radio discipline and the specific procedures for reporting emergencies. Test your knowledge on the operational guidelines and channel usage.
