How to program a realistic scanner pro-41

The pdf manuals are not on my server so if the download doesn't work it is beyond my control. Read them online or "right click" the link and choose "save target as" to download to your computer. Uniden Bearcat. All the following links link to Radio Shack support pages which include various information on their scanners including spec's, care and maintenance and general scanning guides.

Joined Jul 26, Messages 2. I am new to this and I do not know how to set it up I can program it but I am not receiving any signal. I don't know where to start on fingering out what I have done wrong. Any help would be much apperciated. A couple of questions to be able to help you.

What are you trying to monitor City, county, state, agencies? Do you have programming software? If so. This article from our wiki has links always in blue that will help you get started.

There is an Easier to Read manual for these radios linked at the bottom of You can store frequencies in the scanner's 10 channels and you can change your selections at any time. The secret to the scanner's ability to scan so many frequencies is its custom-designed microprocessor - a tiny, built-in computer.

The scanner's microprocessor also gives the scanner these features:. The scanner might cause radio or TV interference, even when it is operating properly.

To determine whether the scanner is causing the interference, turn off the scanner. If the interference goes away, the scanner is causing the interference.

Try to eliminate the interference by:. Birdies are frequencies your scanner uses when it operates. These operating frequencies might interfere with broadcasts on the same frequencies. If you program one of these frequencies, you hear only noise on that frequency.

The most common birdies to watch for are listed below. Reception of the frequencies covered by your scanner is mainly "line of sight". That means you usually cannot hear stations that are beyond the horizon. During the summer months you may be able to hear stations in the MHz range located several hundred or even thousand of miles away. This is because of summer atmospheric conditions. This type of reception is unpredictable but often very interesting!

One very useful service is the National Weather Service's continuous weather broadcast. These broadcasts contain weather forecasts and data for the areas around the station, plus bulletins on any threatening weather conditions. These stations use three frequencies - In most areas of the country, you can receive one of these frequencies.

With a little investigation, you can find active frequencies in your community. We can give you some general pointers, and you can take it from there. Please use caution and common sense when you hear an emergency call. Never go to the scene of an emergency.

It could be very dangerous. Find out if there is a local club that monitors your community's frequencies. Perhaps a local electronics repair shop that works on equipment similar to your scanner can give you frequencies used by local radio services.

As a general rule on VHF, most activity is concentrated between Here you find local government, police, fire and most such emergency services. If you are near a railroad yard or major railroad tracks, look around In some larger cities, there has been a move to the UHF bands for emergency service.

Here, most of the activity is between In the UHF band, frequencies between The following is a brief listing of the typical services that use the bands you scanner can receive. This listing helps you decide which ranges you would like to scan. These frequencies are subject to change, and might vary from area to area. For complete information of your scanner's capabilities, be sure to read your owner's manual completely.

Ham operators often transmit emergency information when other communication methods break down. The following chart shows some of the frequencies that Hams use. In the United States, there are several broadcast bands. The standard AM and FM bands are probably the most well known. There are also four television audio broadcast bands-the lower three transmit on the VHF band and the fourth transmits on the UHF band.

Several short-wave bands are allocated for international broadcasting because of the nature of propagation of high frequencies. The bands are sometimes identified according to the approximate wavelength of the signals in meters.

Your scanner may receive the meter band, from Note: Your scanner rounds the entered frequency to the nearest valid frequency. For example, if you try to enter To help you decide which frequency ranges to search, use the following listing of the typical services that use the frequencies your scanner receives. The tuning of a station can be expressed in frequency kHz or MHz or in wavelength meters. The following information can help you make the necessary conversions.

Radios work by simple mathematics. For example, most tune to a frequency by mixing that frequency with another local oscillator frequency which is slightly different. This mixing process primarily gives us the two original frequencies, their sum, and their difference. Well, the radio's Intermediate Frequency I.

Because nothing is perfect, certain "harmonics" will also get through if they are strong enough. For example, if a radio's I. This is more evident in a double-conversion radio than a triple-conversion radio, because the triple-conversion radio's 1st intermediate frequency is quite high. This causes the image to be so far off frequency that it is easy to effectively filter it out. So remember that just because a radio doesn't receive something which another does is not necessarily an indication of a problem.

The one radio may simply not be "tricked" into picking up an image! This rejection of undesired signals is one reason that a triple-conversion receiver costs more than a similar dual-conversion model.

You might be interested in finding more out about radio. One good location to start looking is your local public library.

You might also wish to contact the A. The programmed frequency appears on the display, one digit at a time. To program more channels, repeat Steps 1 to 3.