Uniden America Corporation UB315 사용자 설명서
replies for a few seconds, they are removed from the
frequency so another talkgroup can use it.
frequency so another talkgroup can use it.
Sharing of the available public service frequencies,
or trunking, allows cities, counties, or other agencies to
accommodate hundreds of users with relatively few
frequencies. Following a conversation on a trunked system
using a scanner is difficult, if not impossible. Because when
there's a short break during the conversation you're
monitoring, it’s possible that the talkgroup will be assigned
to a completely different frequency in the trunked system. This
type of scanning is difficult and frustrating.
or trunking, allows cities, counties, or other agencies to
accommodate hundreds of users with relatively few
frequencies. Following a conversation on a trunked system
using a scanner is difficult, if not impossible. Because when
there's a short break during the conversation you're
monitoring, it’s possible that the talkgroup will be assigned
to a completely different frequency in the trunked system. This
type of scanning is difficult and frustrating.
TrunkTrack changes this! Not only does your new BC250D
scan channels like a conventional scanner, it actually follows
the users of a trunked radio system. Once you know
a talkgroups ID, you won’t miss any of the action.
scan channels like a conventional scanner, it actually follows
the users of a trunked radio system. Once you know
a talkgroups ID, you won’t miss any of the action.
If you're a new scanner enthusiast, you may want to read the
first part of this manual and use your scanner in conventional
mode before you begin trunk tracking. Understanding
scanning fundamentals and its terminology will make trunk
tracking much easier. A glossary of other commonly used
terms is provided in the back. (Refer to the "Glossary of
Terms" section.) But if you're already an experienced scanner
operator, you may want to skip to Trunked System on page
50.
first part of this manual and use your scanner in conventional
mode before you begin trunk tracking. Understanding
scanning fundamentals and its terminology will make trunk
tracking much easier. A glossary of other commonly used
terms is provided in the back. (Refer to the "Glossary of
Terms" section.) But if you're already an experienced scanner
operator, you may want to skip to Trunked System on page
50.
What is APCO Project 25 Digital
Communications?
Communications?
APCO Project 25 is a modulation process where Voice
communications are converted into digital communications.
This conversion is similar to the technology used with digital
mobile phones. There are several types of project 25 systems
available!
communications are converted into digital communications.
This conversion is similar to the technology used with digital
mobile phones. There are several types of project 25 systems
available!
- Conventional – One frequency with digital voice.
- Trunked with analog control channel and digital voice –
many frequencies shared by many departments and the
control channel is analog with digital voice. Control channel
operates at 3600 Band.
control channel is analog with digital voice. Control channel
operates at 3600 Band.
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