What is trunked

[shaharhada]

I don't under definition number 3 in the link:

trunked - Wiktionary, the free dictionary

en.wiktionary.org

or in the link:

Trunked radio system - Wikipedia

en.wikipedia.org

(in the first sentence)
What is trunked?

 

[Colif]

lets see

Trunked likely means: Of a two-way radio system: using a control channel to automatically assign frequency channels to groups of user radios.

its not something I have heard a lot myself. Most references to Trunks I see are tree trunks (the main support of a tree). Its an obscure meaning. Not common.

Understanding Trunking Systems

One of the biggest advantages of the new digital scanners is the ability to follow a Trunking system or "Trunk-Track". I'm sure you are thinking "What does Trunking even mean?" With the advancement of radio technology digital radio systems have gone to a system referred to as a Trunked Radio...

whistlergroup.com

 

[shaharhada]

lets see

Trunked likely means: Of a two-way radio system: using a control channel to automatically assign frequency channels to groups of user radios.

its not something I have heard a lot myself. Most references to Trunks I see are tree trunks (the main support of a tree). Its an obscure meaning. Not common.

Understanding Trunking Systems

One of the biggest advantages of the new digital scanners is the ability to follow a Trunking system or "Trunk-Track". I'm sure you are thinking "What does Trunking even mean?" With the advancement of radio technology digital radio systems have gone to a system referred to as a Trunked Radio...

whistlergroup.com

O.K. What is the difference between roaming to trunk (in this context)?

 

[Colif]

defining one word is easy, explaining the difference between 2 terms I don't understand myself is where I should draw line.

I guess someone might know answer to that so I just won't try

i might be wrong but i think roaming is also called conventional. As such, this might help: https://www.p25bestpractice.com/specifying/technology-selection/

 

[Ralston18]

Trunk line has also been used with telephone systems. Originally copper and now fiber.

https://www.wharftt.com/what-is-a-trunk-in-telecommunications/

https://www.aboutmechanics.com/what-is-a-trunk-line.htm

You can find other similar links.

= = = =

Likewise I am hesitant to attempt some explanation of the differences in terminology.

The P25bestpractice link ([provided by @Colif ) being a very good starting point.

@shaharhada

Do remember that it is not uncommon for terms and phrases that have some general or original meaning evolve into other meanings.

Generally that evolution is more for marketing purposes than some specific technical reasons.

However, in all fairness, using older or established terminology can serve as a base to help explain and understand newer ways or applications of technology.

As above "roaming" and "trunk" being two immediate examples.