EAS EAS Equipment and Technology 2

Question 1

What is the purpose of the EAS end-of-message (EOM) signal?

Accepted Answer

To indicate the alert transmission is complete

Answer

The EOM signal consists of three identical bursts that notify receiving equipment the EAS message has ended.

Question 2

Which modulation method does the SAME protocol use to encode header data?

Accepted Answer

FSK (Frequency Shift Keying) at 520.83 baud

Answer

SAME uses FSK at 520.83 baud, toggling between mark and space tones to encode digital header information.

Question 3

How long does the EAS attention signal last before the voice message begins?

Accepted Answer

8–25 seconds

Answer

The EAS attention signal (two-tone 853/960 Hz tones) lasts between 8 and 25 seconds to alert listeners before the voice message.

Question 4

What organization certifies EAS equipment for use by broadcast stations?

Accepted Answer

FCC (Federal Communications Commission)

Answer

The FCC certifies EAS equipment and maintains a list of approved devices that broadcast stations must use.

Question 5

What is the maximum audio message duration allowed in a standard EAS alert?

Accepted Answer

2 minutes

Answer

Standard EAS audio messages are limited to 2 minutes, though the alert validity period coded in the SAME header can be longer.

EAS - Emergency Alert System Test Practice Test