User Defined Fleet Maps

Type I Programming Information

When a Type I system is designed, the address information for all the ID’s is divided into 8 equal sized blocks, numbered 0–7. When you program your scanner to track a Type I system, you must select a size code for each of these blocks. When you have assigned a size code to all 8 blocks, you’ll have defined the fleet map for the system you are tracking. Each size code determines the number of fleets, subfleets, and ID’s each block will have. For example, a size code of S-4 has one fleet, which is divided into 16 separate subfleets, and it has a total of 512 individual ID’s.

When a block is assigned a size code, the fleet or fleets created within the block are assigned a Type I ID.

The way these ID’s display on your scanner depend on the block number and the block’s size code. When a Type I ID appears, the leftmost digit represents the block which contains the ID.

The next 2-3 digits identify which fleet is active, and the last digit(s) identifies the subfleet.

The details concerning how the size codes are selected by a Type I System designer are highly dependent on the specific needs of the system’s users. Some organizations might want many subfleets with only a few radios each, while another organization might want only a few sub- fleets with many radios each. Your task is to program your fleet map with the same size code assignments as the trunked system. If you do this accurately, you’ll track all the Fleet-Subfleet combinations used by the system. In other words, you’ll hear complete communications while monitoring a trunked system.

If you don’t already know the size codes used, you’ll have to guess at them. But since you don’t have to figure out all the blocks at once, this isn’t as hard as it seems. Select a size code for a block, and then press Scan. Now listen to the communications. If you decide you are receiving most of the replies to the conversations with ID’s assigned to

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BC246T specifications

The Uniden BC246T is a versatile and advanced handheld scanner that has gained popularity among radio enthusiasts and professionals alike. Designed for those who want to stay informed about their surroundings, this device offers a blend of features, technologies, and characteristics that make it a standout choice in the world of scanners.

One of the primary attributes of the BC246T is its wide frequency coverage. Capable of receiving frequencies from 25 MHz to 1.3 GHz, it includes VHF, UHF, and 800 MHz bands. This broad range allows users to monitor a variety of communications, including police, fire, and emergency services, as well as amateur radio and aviation transmissions.

Another essential feature of the BC246T is its 1000-channel memory capacity. Users can easily program and store their favorite frequencies, organizing them into manageable banks for quick access. This is particularly useful for those who wish to track multiple agencies or services simultaneously. The scanner also supports alpha tagging, allowing users to assign a name to each frequency, making it easier to identify and navigate channels.

The BC246T incorporates advanced digital technologies, including support for APCO P25 digital communications. This feature allows users to listen to transmissions from public safety agencies that utilize digital formats. Furthermore, with Close Call™ technology, the scanner can automatically detect and tune into nearby frequencies that are in use, providing real-time alerts to users about active communications around them.

Ease of use is another hallmark of the Uniden BC246T. The device features a clear LCD display that shows relevant information, including channel names, frequency, and the type of received signal. The user interface is intuitive, with easy-to-access buttons and a well-organized menu system that simplifies programming and operation.

Built to last, the BC246T is compact and lightweight, making it ideal for on-the-go monitoring. Its battery life is commendable, providing extended usage for those who require reliable performance during extended listening sessions.

In conclusion, the Uniden BC246T is a robust handheld scanner, offering extensive frequency coverage, advanced digital capabilities, and user-friendly features. Whether you are a seasoned scanner enthusiast or a casual user, the BC246T provides a comprehensive solution for monitoring a wide array of communications. Its combination of technology, functionality, and portability makes it a valuable tool for anyone interested in radio communications.
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