S-130 Radio Communication 4 — Questions and Answers
Question 1: During an airtanker drop, which radio channel is typically used for air-to-ground coordination?
- The primary command channel
- An assigned air-to-ground tactical frequency (Correct answer)
- The same tactical channel used by ground crews
- A cell phone application approved by dispatch
Correct answer: An assigned air-to-ground tactical frequency
Dedicated air-to-ground tactical frequencies keep aircraft coordination separate from ground crew traffic to prevent interference.
Question 2: What is the correct way to address a specific unit on the radio using ICS protocols?
- State your own unit identifier only
- State the called unit's identifier first, then your own identifier (Correct answer)
- State the message first, then identify both units
- Use only the individual's first name to save airtime
Correct answer: State the called unit's identifier first, then your own identifier
ICS protocol requires stating the receiving unit first so the intended recipient knows to listen, then identifying the calling unit.
Question 3: A crew member's portable radio battery dies during active fire operations. What is the FIRST action they should take?
- Continue working and wait for the next scheduled break
- Notify their supervisor and obtain a replacement battery or radio (Correct answer)
- Return to the Incident Command Post to report the issue
- Borrow a radio from a crew on an adjacent division
Correct answer: Notify their supervisor and obtain a replacement battery or radio
Immediately notifying a supervisor ensures the communication gap is managed and a replacement is obtained promptly.
Question 4: What does the radio term 'Go ahead' indicate during an ICS communication exchange?
- The firefighter is physically moving forward on the fireline
- The receiving station is ready to receive the full message (Correct answer)
- The transmission is complete and no reply is needed
- Operations should proceed without waiting for orders
Correct answer: The receiving station is ready to receive the full message
'Go ahead' tells the calling unit that the receiver is ready and listening for the full message.
Question 5: Why is it important to keep radio transmissions brief on a wildland fire?
- Short messages preserve radio battery life more effectively
- Long transmissions block urgent traffic and may delay critical safety information (Correct answer)
- FCC regulations limit wildland fire transmissions to 30 seconds
- Brief messages automatically get recorded by dispatch for playback
Correct answer: Long transmissions block urgent traffic and may delay critical safety information
Lengthy transmissions occupy the channel and can delay urgent safety or operational messages from reaching intended recipients.
Question 6: What is a 'lookout' responsible for communicating in the LCES framework?
- The status of crew productivity and task completion
- Early warning of approaching fire, spot fires, or changed conditions threatening crew safety (Correct answer)
- Coordination of supply drops and equipment deliveries
- Confirmation that escape routes have been flagged
Correct answer: Early warning of approaching fire, spot fires, or changed conditions threatening crew safety
In LCES, lookouts must immediately communicate any changes in fire behavior or conditions that threaten crew safety.
Question 7: Which of the following is an example of proper radio discipline on a wildland fire?
- Discussing non-operational topics to maintain crew morale
- Transmitting only necessary, concise, and accurate information (Correct answer)
- Keeping the push-to-talk button held down while thinking
- Using nicknames to keep transmissions informal and friendly
Correct answer: Transmitting only necessary, concise, and accurate information
Radio discipline means transmitting only essential operational information concisely and accurately, keeping channels available for critical traffic.
S-130 Radio Communication 4
During an airtanker drop, which radio channel is typically used for air-to-ground coordination?