Note: • If the system is not tracking properly, you may need to try a new Base Frequency or Offset Channel or you may be missing frequencies from the system.

•You can set up to three Base, Spacing and Offsets for Motorola VHF/UHF trunked systems.

Toggling the Status Bit

On Type II trunking systems there is a method by which specialized types of communications utilize unique talkgroup numbers. An emergency call will occur on a unique talkgroup from its primary assignment, for example. Because the BC250D defaults to Status-Bit ON mode, you never need to worry about missing these transmissions. If you have programmed talkgroup 33264 into Scan List memory, for example, and there is an emergency call within the group, you will hear it on 33264.

The only time you may wish to turn Status Bits OFF is if you're trying to figure out the proper Fleet Map of a Type I trunking system. To turn Status Bits OFF, enter into the Menu mode and select 2:SCAN OPTION / 2:TRUNK - select bank number - / 9:STATUS BIT. (This feature does not apply to EDACS and LTR operation within the scanner.) Then rotate the VFO to change the setting (1:ON to 2:OFF) and press E to program your change.

Control Channel Only Mode

When this function is activated, trunking is performed using Control Channel data only. Voice channel (also known as "DATA channel") frequencies do not have to be programmed into memory. This feature only applies to Motorola 800 MHz and 900 MHz systems.

To turn this function on, choose Motorola 1:TYPE2 800 or 3:TYPE2 900 or 2:TYPE1 in the Menu mode. Then set to the desired control plan by selecting 2:SCAN OPTION / 2:TRUNK - select bank number - / :CNTRL CH ONLY.

You must choose one of 4 frequency plans (only when 800 MHz systems is selected) before you begin to Control Channel Trunk. The default, Plan 1, is the most common. Read the description of the Plans below for details on which may apply for you.

PLAN 1: Use Plan 1 if the last three digits of ALL the frequencies in use end in one of the following three digits: 125, 375, 625, or 875 (example: 856.1125, 860.7375, 859.6625, 855.8875).

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Uniden BC250D manual Toggling the Status Bit, Control Channel Only Mode
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BC250D specifications

The Uniden BC250D is a versatile and powerful handheld scanner that caters enthusiastically to the needs of both amateur radio enthusiasts and professionals alike. With its compact design and extensive feature set, the BC250D stands out in the crowded field of communication devices.

One of its significant features is the 200 channels it can store, making it suitable for various scanning tasks. Users can easily program frequencies across public service and amateur bands, including police, fire, and emergency medical services. The BC250D also supports a full range of frequencies from 24 MHz to 1300 MHz, accommodating diverse communication needs.

The scanner’s advanced trunking capabilities allow users to access trunked radio systems, which are frequently used by public safety agencies and commercial entities. It supports both Motorola and EDACS trunking protocols, making it adaptable to numerous scanning scenarios.

Another key characteristic of the BC250D is its customizable scanning options. Users can set priorities for specific channels, enabling them to focus on the most relevant communications. The scanner also features a "Close Call" technology that detects nearby signals automatically, providing real-time monitoring without pre-programmed frequency setups. This feature is particularly beneficial for catching local transmissions that might not be otherwise listed.

The interface of the BC250D is user-friendly, designed to allow easier navigation through its extensive features. The display is crisp and vibrant, presenting information clearly even in low-light conditions. Additionally, the scanner supports alpha tagging, allowing users to assign names to channels for easier identification.

Powering the Uniden BC250D is an internal rechargeable lithium-ion battery, which ensures longer use without the need for frequent battery changes. Plus, with an included belt clip, it’s easy to carry around, making it perfect for users who are always on the go.

In terms of connectivity, the BC250D's built-in computer interface allows for firmware updates and programming through a PC, enhancing its functionality over time.

Overall, the Uniden BC250D combines advanced scanning technology with user-friendly features, solidifying its position as a reliable scanner for a wide range of applications. Whether for hobbyists or professional users, this scanner delivers performance, flexibility, and ease of use.
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