EAS EAS Equipment and Technology 1 — Questions and Answers
Question 1: What device do broadcast stations use to receive and decode EAS alert messages?
- EAS encoder/decoder (Correct answer)
- AM radio receiver
- Satellite uplink terminal
- NOAA weather balloon
Correct answer: EAS encoder/decoder
EAS encoder/decoders are the certified equipment used by broadcast stations to receive, decode, and re-transmit EAS alert messages.
Question 2: Which digital data burst is transmitted at the beginning of an EAS message to activate downstream equipment?
- SAME header burst (Correct answer)
- DTMF tones
- Attention Signal tones
- EOM signal
Correct answer: SAME header burst
The SAME (Specific Area Message Encoding) header burst is transmitted to activate and instruct downstream EAS equipment.
Question 3: How many times is the SAME header transmitted in a standard EAS message?
- Once
- Twice
- Three times (Correct answer)
- Four times
Correct answer: Three times
The SAME header is transmitted three times to ensure reliable reception and error correction by receiving equipment.
Question 4: What frequency range is used by NOAA Weather Radio as a primary EAS monitoring source?
- 162.400–162.550 MHz (Correct answer)
- 88.1–107.9 MHz
- 530–1700 kHz
- 1800–3000 MHz
Correct answer: 162.400–162.550 MHz
NOAA Weather Radio operates on dedicated frequencies between 162.400 and 162.550 MHz in the VHF band.
Question 5: What does 'CAP' stand for in the context of modern EAS technology?
- Common Alerting Protocol (Correct answer)
- Certified Alert Platform
- Centralized Alert Program
- Channel Alert Protocol
Correct answer: Common Alerting Protocol
CAP stands for Common Alerting Protocol, an XML-based standard that enables richer alert messages across multiple delivery channels.
Question 6: What is the purpose of the EAS encoder in a broadcast station's alert system?
- To generate and transmit EAS alert messages (Correct answer)
- To decrypt incoming coded messages
- To log weather forecast data
- To manage commercial scheduling
Correct answer: To generate and transmit EAS alert messages
The EAS encoder generates and transmits EAS alert messages, including the SAME header, attention signal, audio, and end-of-message tones.
EAS EAS Equipment and Technology 1
What device do broadcast stations use to receive and decode EAS alert messages?