PSD Radio Communications and Procedures 2

Question 1

When a unit requests a radio check, the dispatcher should respond with information about the signal quality using which standard scale?

Accepted Answer

The APCO signal strength scale from 1 to 5

Answer

APCO uses a 1–5 signal strength scale where 1 is unreadable and 5 is perfectly clear.

Question 2

A dispatcher hears a transmission that begins mid-sentence and is unintelligible. The best immediate action is to:

Accepted Answer

Transmit 'Unknown unit, please repeat your transmission'

Answer

Asking an unknown unit to repeat ensures the potentially critical message is received.

Question 3

Which practice is considered improper radio procedure during emergency traffic?

Accepted Answer

Using unnecessary chit-chat to reassure the caller

Answer

Unnecessary conversation during emergency traffic wastes airtime and can block critical communications.

Question 4

What does the term 'trunked radio system' mean in public safety communications?

Accepted Answer

A system that automatically assigns available channels from a pool as needed

Answer

Trunked systems dynamically allocate channels from a pool, improving efficiency over a fixed single-channel setup.

Question 5

A dispatcher must relay a message from one unit to another that is not monitoring the same channel. The correct procedure is to:

Accepted Answer

Relay the message verbatim to the receiving unit on their assigned channel

Answer

Dispatchers serve as communication bridges and should relay messages accurately between units on different channels.

(PSD) Certified Public Safety Dispatcher Practice Test