Another dunm question

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k1mri

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Another dumb question

OK my BCT15 is working fine but I have the following question.

How do I know what Talk Groups are assigned to which freq.? Example:

Mass. State Police Freqs.
001 Boston 856.73750 856.98750 857.73750 857.96250 858.71250 858.73750 858.96250 859.46250 [highlight]859.73750*[/highlight] 859.96250 859.98750

There is no BOSTON listed in the Systems Talkgroups section.

Thank you.
 
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SCPD

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OK my BCT15 is working fine but I have the following question.

How do I know what Talk Groups are assigned to which freq.? Example:

Mass. State Police Freqs.
001 Boston 856.73750 856.98750 857.73750 857.96250 858.71250 858.73750 858.96250 859.46250 [highlight]859.73750*[/highlight] 859.96250 859.98750

There is no BOSTON listed in the Systems Talkgroups section.

Thank you.
talk groups can be & will be on on any & all frequencies in the system
 

n2mdk

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Talkgroups aren't assigned to any particular frequency they all share the frequencies. A TGID is assigned to a free frequency by the systems computer control that info is constantly sent out on the control channel. When the radios on the system that use that TGID they switch to the newly assigned frequency.
If you watch the BCT15's display you will see the frequencies shift to the one being used at that particular transmission. When it's not on a voice channel you will see the control channel frequency listed.
Read this http://www.uniden.com/products/ButIjustwanttolistentothePolice.pdf it gives a good basic idea of the way trunking works.
 

n2mdk

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I don't live in MA but looking at the database it seems to be Boston listed
 

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WX5JCH

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Ah, that's "DUMB" by the way. geez send kids to school dumm and they come out the same way. lol
 
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