FM Mode

The FM mode sets the scanner to receive transmissions using frequency modulation (FM), used for most public safety transmissions, as well as broadcast, business, and amateur radio transmissions. When the scanner re- ceives a transmission on a channel set to the FM mode, it always stops on the transmission.

Motorola Mode

You can set your scanner so it decodes the talk group IDs used with Motorola trunking systems. This setting is called the Motorola mode.

Motorola systems are trunking systems used primarily by business and public safety groups to efficiently allo- cate a small number of frequencies (as few as five) to many groups of users (as many as several thousand). To do this, each group of users in the system is assigned to a specific talk group. For example, the east side patrol officers might all be assigned to talk group 2160. One channel in the system is continuously transmitting data that identifies which talk groups are active on which channel. In addition, this talk group information is also transmitted as subaudible data on each active channel.

When the scanner receives a transmission on a channel set to the Motorola mode, it first decodes the talk group ID data included with the transmission. In the open mode, the scanner stops on the transmission and dis- plays the talk group ID on the bottom line of the display. In the closed mode, the scanner only stops on the trans- mission if the talk group ID matches a talk group ID that you have stored in the bank's talk group ID list and have not locked out.

Motorola trunking systems come in three categories: Type I, Type II, and Type I/II Hybrid. Each category dis- plays and uses talk group IDs in slightly different ways.

Motorola Type I IDs are in the form FFF-SS, where:

FFF=Fleet ID

SS=Subfleet ID

About Your Scanner

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Radio Shack PRO-93 owner manual FM Mode, Motorola Mode
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PRO-93 specifications

The Radio Shack PRO-93 is a handheld scanner that has become a favorite among radio enthusiasts and hobbyists since its introduction. This versatile device is known for its exceptional performance in receiving a wide array of frequencies and its user-friendly interface, making it an accessible tool for both beginners and experienced users alike.

One of the defining features of the PRO-93 is its ability to scan various bands, including VHF, UHF, and frequencies used by public service agencies such as police, fire, and emergency medical services. With its 200 channels and dynamic memory allocation, users can easily program and organize their favorite frequencies for quick access. The scanner supports both conventional and trunked systems, allowing users to keep up with the latest communications in their area.

The PRO-93 employs advanced technologies such as computer control and the ability to be interfaced with a PC for programming and updates. Users can quickly manage their channels and settings through software, enhancing their overall experience. The scanner also features a built-in backlit display, providing excellent visibility in low-light conditions, which is especially useful during nighttime operations.

Another key characteristic of the PRO-93 is its versatility in terms of battery life. The scanner operates on standard alkaline or rechargeable batteries, offering the user flexibility in power management. The incorporation of a power-saving mode helps extend battery life, making this scanner ideal for on-the-go use.

In addition to its exceptional scanning capabilities, the PRO-93 includes a range of useful features such as the ability to store up to 50 frequencies into 10 memory banks, allowing easy categorization and retrieval of channels. It also supports multiple modulation modes, including FM, AM, and Narrowband, which broadens the scope of communications that can be monitored.

Overall, the Radio Shack PRO-93 stands out as a reliable and feature-rich handheld scanner. Its combination of extensive frequency coverage, user-friendly programming options, and robust build quality makes it an attractive choice for anyone interested in the world of radio communications. Whether you’re a casual listener or a dedicated scanner aficionado, the PRO-93 delivers an engaging and informative experience.
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