Maintenance, National Weather Service Reception

An interesting service is the Mobile Telephone. FCC has assigned this service channels in·the range of 152.51to152.81 MHz at every 0.030 MHz (channels are 30 kHz apart). Also, 454.375 to 454.95 MHz, with channels 25 kHz apart from 454.375 to 454.625 and then every 50 kHz up to 454.95.

As a. general rule on VHF, most activity will be concentrated between 153.785 and 155.98 and then again from 158.73 to 159.46 MHz . Here you'll find local government, police, fire and most such emergency services. If you are near a railroad yard or major railroad tracks, look around 160.0 to 161.9 for them .

In some of the larger cities, there has been a move to the UHF bands for these emergency services. Here, most of the activity is in a spread of 453.05 - 453.95 and again at 456.025 - 459.95 MHz.

In the UHF band, the overall spread of 456.025 - 459.95 and again at 465.025 - 469.975 MHz is used by mobile units and control stations associated with base and repeater units which operate 5 MHz lower (that is, 451 .05 - 454.95 and 460.025 - 464.975 MHz). This means that if you find an active channel inside one of these spreads, you can look 5 MHz lower (or higher as the case may be) to find the major base st ation/repeater for that radio service.

NATIONAL WEATHER SERVICE RECEPTION

Continuous weather broadcasts are transmitted 24-hour-a-day in many parts of the country. If you are using a crystal set to one of the two channels assigned (162.55 or 162.40 MHz), your PR0-16Awi ll automatically lock-in on that channel, since the broadcasts are continuous. To prevent automatic locking, set the channel lock-out button for that channel to the "off" position (button out). When you want a weather report, set the Lock-Out Button to the "on" position (press in) for that channel. In areas where two stations are close to each other, one will use 162.55 and the other will use 162.40 MHz. Check with your local FCC office or the Weather Bureau for the frequency used in your area.

MAINTENANCE

The PR0-16A is a ruggedly built electronic unit, with all parts conservatively rated. However, you should treat it with care; don't subject it to excessively rough handling. You will find it will give you long life if kept free from dirt and excessive humidity.

BLOCK DIAGRAM

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PRO-16A specifications

The Realistic PRO-16A is a powerful and versatile multiband receiver that has garnered a dedicated following among radio enthusiasts and professionals alike. Known for its solid performance and user-friendly design, this receiver is ideal for both casual listening and serious DXing.

One of the standout features of the PRO-16A is its wide frequency coverage. It operates across multiple bands, including AM, FM, and shortwave, allowing users to tune into a vast array of frequencies. This makes it an excellent choice for those who enjoy listening to various types of broadcasts, from local radio stations to international shortwave signals.

The PRO-16A incorporates advanced technologies that enhance its reception capabilities. It employs a dual conversion superheterodyne design that minimizes interference and provides superior selectivity. This technology is crucial for DXing, as it enables users to pull in distant signals even in crowded frequency environments.

Another key characteristic of the PRO-16A is its sensitive front-end and low-noise stage, which significantly improve the clarity and quality of received signals. The receiver also includes a built-in AGC (Automatic Gain Control) feature, which automatically adjusts the volume of incoming signals to prevent distortion from strong broadcasts.

User experience is paramount in the design of the PRO-16A. The device features an easy-to-read digital display that provides clear information on the frequency being received, alongside a simple yet effective interface for tuning. The rotary knobs and buttons are intuitively placed for seamless operation, even in low-light conditions.

Additionally, the PRO-16A supports external antennas, enhancing its reception further. For avid listeners, this flexibility can mean the difference between receiving a weak signal and enjoying crystal-clear audio.

Durability and build quality are other strengths of the PRO-16A. Constructed with high-quality materials, this receiver is designed to withstand the rigors of both home use and travel. Its compact and lightweight design ensures portability without compromising functionality.

In summary, the Realistic PRO-16A stands out in the realm of multiband receivers due to its impressive features, advanced technologies, and ease of use. Whether you are a seasoned radio hobbyist or a newcomer to the world of broadcasting, the PRO-16A is an excellent choice for exploring the airwaves. Its ability to deliver reliable performance across a variety of bands makes it a valuable addition to any radio collection.