Which statement best describes a trunked radio system's channel access?

Which statement best describes a trunked radio system's channel access?

• A. Each user has a dedicated channel
• B. All users share the same radio frequencies; all departments can access all channels
• C. It relies on GPS satellites
• D. It uses 39-72 MHz

Answer: (B)

In a trunked radio system, a single pool of channels is shared by many users, and a control channel coordinates who gets which channel. When someone speaks, the system dynamically assigns a free voice channel from that pool for the duration of the call. This means no one has a permanently assigned dedicated channel; instead, all users, across departments, access the same set of channels as needed. That shared, on-demand allocation is what makes trunked systems efficient and scalable for interagency use. The other statements aren’t about how trunking manages access: one describes a fixed, dedicated channel per user, which trunking does not use; another implies GPS is involved in deciding access, which isn’t a defining part of trunked channel assignment; and another cites a specific frequency range, which isn’t what trunking centers on.

In a trunked radio system, a single pool of channels is shared by many users, and a control channel coordinates who gets which channel. When someone speaks, the system dynamically assigns a free voice channel from that pool for the duration of the call. This means no one has a permanently assigned dedicated channel; instead, all users, across departments, access the same set of channels as needed. That shared, on-demand allocation is what makes trunked systems efficient and scalable for interagency use.

The other statements aren’t about how trunking manages access: one describes a fixed, dedicated channel per user, which trunking does not use; another implies GPS is involved in deciding access, which isn’t a defining part of trunked channel assignment; and another cites a specific frequency range, which isn’t what trunking centers on.