User's Manual

200018 User’s Guide Draft
The
Library data is intended for your personal use only in conjunction with programming and using
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to only be used with the PRO-18 radio and its associated PC software. The Library shall not be copied
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The RadioReference database is developed and maintained by unpaid volunteers who are dedicated
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reported to RadioReference, and also to the system configuration changes that a radio system
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Understanding Objects
iSCAN Digital monitors two types of objects while scanning: conventional frequencies and trunking
talkgroups.
Conventional Frequencies
A conventional frequency is a single radio frequency, which is usually broadcast from a radio tower or
rooftop radio site. When browsing the PRO-18 Library, you will most often find conventional
frequencies in the Categories or Agencies sub levels under States or Counties/Cities. You know you’ve
browsed to a conventional frequency when you see the word “Frequencies” on the top of the display.
Trunked Radio Systems
A trunked radio system is a modern radio network allowing many different groups of radio users to
share a small number of channels. Trunked radio systems are more complicated than conventional
frequencies. They contain both talkgroups and sites. A talkgroup is the name of a group within the
trunked system. A site is a set of control frequencies located throughout the service area of the trunked
system. Unlike conventional frequencies, trunking talkgroups have dependency – at least one site from
the system must be selected in order for the talkgroups to imported to playlist.
There are many different manufacturers and types of trunked radio systems, each with their own
special programming requirements. PRO-18 automatically programs the correct requirements
whenever you import a talkgroup and site to a Playlist.
When browsing the PRO-18 Library, everything you find below the Systems level under States or
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