You say you are interested in a “ZIP Code” scanner like a HomePatrol, BCD436HP or BCD536HP? You like the idea of having the scanner do all the programming by itself but don’t understand how it works? Here are the answers you are looking for! The HomePatrol and x36 scanners are wonderful technology and take a lot of the work out of scanning. By understanding how they work you can better understand how to use the radio and address any issues that might pop up.

First of all there are a couple misconceptions about these scanners. One common one is that they will only hear things in the chosen ZIP Code. This is incorrect. “ZIP Code” scanners use the location you enter into the radio (either by ZIP Code, city and state or by GPS coordinates) as a CENTER POINT. You then enter in a “Range” in miles, this creates a circle around that location. The larger the Range setting makes a larger circle and more stuff that will be programmed into your radio. The Range setting only affects what is programmed into the scanner, not the actual distance it will receive from.

When you set a location and range the radio will automatically program in all the services you selected within the circle and allow you to listen to it. If a Service Type is unavailable to be selected (greyed out) that means the database has no channels with that Service Type within the circle.

So what happens when you need to listen to something 20 miles away but really don’t want to listen to another area closer in? This is where the “Avoid” system comes in handy. Learn how to use the Avoid key on your scanner and use it to lockout Channels, Departments or Systems from your radio to help tailor your listening. “Avoid” works much like the Lockout function in older scanners. “Temporary Avoid? Means that the item will be locked out until the radio is shut off, the item will return the next time you turn on the radio. “Permanent Avoid” will cause it to stay locked out until you go in and “unavoid” it.

There is another way to easily tailor your HomePatrol or “x36” scanner to your preferences. This is by using Favorites Lists. Favorites Lists are basically your own frequency sets for your area. Instead of using the Nationwide Database and going strictly by location, a Favorites List will allow you to import Systems from the Nationwide Database or create your own from scratch. This is usually done with the Sentinel program that comes with your scanner. You can also work on Favorites Lists with ARC-Patrol (for HomePatrol’s) or ARC-536 (for the BCD436HP and BCD536HP).

To create a Favorites List you would import items from the Nationwide Database into it. You can then edit the information but adding or deleting your own information. You can also create a List from scratch and built it from the ground up.

If you selected ScannerMaster’s Optimize option for your HomePatrol or x36 scanner we would have created a Favorites List for you for your area. You can edit this if you want with Sentinel. You can also edit this from the scanner itself but this can be time consuming and kind of daunting. It is a bit easier on the 436 and 536 than the HomePatrol but we recommend that you do this in Sentinel, trust me it is a lot easier!

So where does the database itself come from? It comes from you and me! A website called RadioReference (www.radioreference.com) hosts a database where scanner users from all over the world share information. Each state and province has one or more Database Manager’s that filter submissions from users and update the main database. Once a week Uniden retrieves a copy of this database and makes it available to scanner users via Sentinel.