20-432.fm Page 41 Friday, July 14, 2000 11:30 AM

S11

2

16

256

1

 

 

 

 

 

S12

1

16

1024

2

 

 

 

 

 

S13

1

16

2048

4

 

 

 

 

 

S14

1

16

4096

8

 

 

 

 

 

Each ID in the block is unique. The left-most digit is the block number in the ID. The next two digits identify which fleet is active, and the last dig- it(s) (after the hyphen) identifies the subfleet.

The size codes selected by a Type I system designer depend on the spe- cific 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 subfleets, with many radios each. To scan Type I systems, you must select or program a fleet map with the same size code assignments as the trunked system. If you do this accurately, you will track all the fleet and subfleet combinations used by the system. In other words, you will hear complete communications while moni- toring a trunked system.

Note: www.trunkscanner.com plans to make preset fleet maps available as they become known.

If you do not already know the size codes used, you will have to guess them. But since you do not have to fig- ure out all the blocks at once, this is not as hard as it seems. Select a size code for a block, then press SEARCH.

Now listen to the communications. If you decide you are receiving most of the replies to the conversations with IDs assigned to the block you just pro- grammed, then you have probably se- lected the right size code and can work on the next block of the map.

There are 16 preset fleet maps to choose from, and it is best to start with these when setting up a Type I or hy- brid trunk scanning bank. If none of the following preset fleet maps allow you to follow complete conversations, then you probably need to program your own fleet map (see “Program- ming a Fleet Map” on Page 44).

E1P1

E1P2

 

 

 

 

 

 

 

 

Block

Size

Block

Size

 

Code

 

Code

 

 

 

 

 

 

 

 

0

S11

0

S4

 

 

 

 

1

S11

1

S4

 

 

 

 

2

S11

2

S4

 

 

 

 

3

S11

3

S4

 

 

 

 

4

S11

4

S4

 

 

 

 

5

S11

5

S4

 

 

 

 

6

S11

6

S4

 

 

 

 

7

S11

7

S4

 

 

 

 

E1P3

E1P4

 

 

 

 

 

 

 

 

Block

Size

Block

Size

 

Code

 

Code

 

 

 

 

 

 

 

 

0

S4

0

S12

 

 

 

 

1

S4

1

(S12)

 

 

 

 

41

Page 41
Image 41
Radio Shack PRO-2052 owner manual E1P1 E1P2 Block Size Code, E1P3 E1P4 Block Size Code S12

PRO-2052 specifications

The Radio Shack PRO-2052 is a versatile and feature-rich scanner that has captured the attention of amateur radio enthusiasts and professionals alike. This desktop scanner is designed to receive a wide array of frequencies across various bands, making it a valuable tool for monitoring communications.

One of the standout features of the PRO-2052 is its ability to monitor VHF, UHF, and some trunked radio systems. It boasts a wide frequency coverage range from 25 MHz to 1.3 GHz, covering conventional FM, AM, and even the digital communications that have become increasingly popular. This extensive coverage ensures that users can receive a plethora of broadcasts, from local police and fire departments to amateur radio operators and public service communications.

Another significant feature is the scanner's memory capacity, which allows users to store up to 300 channels. This capability is particularly beneficial for those who frequently listen to multiple frequencies, as it provides the flexibility to switch between channels seamlessly. The scanner also supports the ability to organize channels into banks, making it even easier to manage multiple frequencies.

The PRO-2052 comes equipped with a variety of scanning modes, including Narrowband and Wideband scanning, which cater to different listening preferences and needs. Users can employ the Delay function that pauses scanning for a brief period after a transmission is detected, ensuring that they don’t miss any important information. Furthermore, the Priority Scan feature enables monitoring of a selected channel while still continuously scanning other frequencies, adding another layer of functionality.

In terms of usability, the PRO-2052 is designed with a clear and intuitive interface, featuring a backlit LCD that makes it easy to read in various lighting conditions. Its control panel is user-friendly with dedicated keys for commonly used functions, allowing both beginners and seasoned professionals to operate the device with ease.

Furthermore, the scanner has built-in weather alert capabilities, offering users prompt notifications about severe weather conditions, ensuring safety and preparedness. The PRO-2052 is powered either by an AC adapter or batteries, providing the flexibility to operate in various environments.

In summary, the Radio Shack PRO-2052 is a powerful and user-friendly scanner that offers a rich set of features, making it a top choice for those interested in radio communications. Its extensive frequency range, substantial memory capacity, and multiple scanning modes make it suitable for a wide variety of applications, proving to be a reliable companion for enthusiasts and professional users alike.