FreeScan User Guide

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Revision as of 16:54, 19 October 2008 by Ka3jjz (talk | contribs) (→‎Appendix)

Welcome to the FreeSCAN user guide. This document is designed to help the newcomer install and navigate FreeSCAN, which is designed to work with the Uniden DMA scanners.

Getting Started

The following scanners are compatible with FreeSCAN:

Installation and Connections

Download Data to FreeSCAN

Viewing Data in FreeSCAN

Creating and Editing Data

Exporting Data

Controlling the Scanner

Common Questions and Answers


If you are new to scanning in general, or have been away from it for awhile, things have changed considerably. Many terms and abbreviations are used throughout this document. Anything in blue or underlined is a link, which should take you to another article to explain or refine the reference. However, we also have a Glossary which lists many more terms and abbreviations. Some Common Conventional Programming Questions are also listed in the link.

In addition, the concept of trunking is key to programming these scanners effectively. If you are not comfortable with the subject, the following is suggested reading;

If you do not understand concepts behind Rebanding, where current public safety trunked frequencies will shift downward to avoid mixing their services with Nextel, please see the indicated link for an excellent article by Paul Opitz of Uniden on the subject.

Uniden has developed scanners - the first was the SC230 - which did away with the traditional definition of a 'bank'. Instead, the concept of a virtual memory plan called Dynamic Memory Allocation (or DMA for short) was introduced. If you have problems understanding DMA, the following is suggested reading;

There are many new features to the DMA scanners; the Uniden manuals are generally considered to be rather poorly written. It's highly suggested that the appropriate Easier to Read manual be downloaded and kept handy, particularly if you are new to this style of scanning;