Tag Archives: RadioReference.com

Reading the RadioReference Database

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One of the best sources for scanner information available is the RadioReference.com database. This is a huge listing of frequencies used thruout the USA and Canada for all types of two-way radio operations.

If you do your own scanner programming then the RRDB is invaluable for information. It is usually more accurate than the agencies themselves have! Even if you only use a database scanner (like a HomePatrol or TRX) then it helps to understand the database so you will have a better idea of what you are listening to. Remember: The data in your scanner came from RadioReference in the first place.

To read the RadioReference database and understand how it works you need to understand how it works. Without understanding how it is laid out it can be daunting, there is a whole lot of information at your fingertips.

To understand it you need to know a couple things. There are two main types of data available, trunked and conventional.

First we will look at a conventional frequency listing. Then we will look at trunking information. (Conventional means that it is not trunked.)

Here is the frequency page for Lee County Florida. It shows several fields:

  • Frequency       (Actual frequency used or the repeater output)
  • Input               (Repeater inputs)
  • License            FCC Callsign, click on this to see what frequencies and other info is available for it.
  • Type               Base, Repeater, Mobile only etc.
  • Tone                Could be PL, DPL or NAC 9for P25) etc.
  • Alpha Tag       A short tag used on some scanners, akin to channel numbers etc.
  • Description     A longer description of the channel and its use.
  • Mode              FM, AM, Digital etc.
  • Tag                  The classification that the channel falls under.

If you hover over the column title it will tell you what the codes mean.

Since so many areas use trunking systems these days one might miss a lot of the info needed to monitor the area. Look at the bottom of the county’s page to see a list of trunking systems active in the county. If you see one that appears to be used there click on it to see the data. The first part you will see it the basic info:

At the top you will see an info box with the system name, location, type and other info. Below that you will see the System ID’s (some scanners will show the System ID to identify it) and other info.

If you scroll down the page next you will see the trunked system Sites. Sites is where you will find the actual frequencies used by the system. Some systems only have 1 or 2 Sites, others (like the one shown) have dozens.

This is a portion of the Site List for the huge Illinois StarCom21 system that has many sites all over the state. There are several columns:

  • RFSS is the Zone number (RF Subsystem), then the Site Number within the Zone. Sometimes Sties are shown in other contexts as X-YYY (1-012 meaning Zone 1, Site 12) or just XYY (112).
  • Next is the Site Name, usually the city or location the site is located in. The county the site is in follows.
  • Last are the frequencies used at that Site. Some freqs will be shown in red, these are known to be “Primary” control channels (mostly for P25 systems). Other freqs will be in blue, these are known to be “Alternate” control channels. The rest are shown in black, these are not know to be used as control channels but are used for voice. Unless you know for sure otherwise, it is usually best to include all channels of the Site in your scanner.

The last part of the Trunked system information is the Talkgroup List. These are the virtual channels used to allow the correct people to communicate within the system.

The columns here are:

  • DEC (Decimal)           The most common way to identify a talkgroup in scanners.
  • HEX (Hexidecimal)     Another way to view Talkgroups, used mostly by the fleet radios.
  • Mode                          Tells you if it is Digital (D), Analog (A), Encrypted (E) or TDMA (T).
  • Alpha Tag                   The short channel name
  • Description                 More inclusive description of the channel and its use
  • Tag                              The classification (Service Type) for that talkgroup.

By understanding the way the data is laid out you can apply this to your programming and understanding of the systems you listen to.

Sentinel, Sentinel: What’s the difference?

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Owners of Uniden ZIP Code scanners can use the free Sentinel software to do database and firmware updates as well as create and edit Favorites Lists. While they look and feel very much the same, the versions of Sentinel for the HomePatrols is different than that for the BCD436HP and BCD536HP.

The HomePatrol Sentinel works for both the original HomePatrol 1 and the newer HomePatrol 2. When installed on your Windows computer it will have a brown shield icon on the desktop.

The BCDx36HP Sentinel works for both the BCD436HP handheld and the BCD536HP desktop/mobile scanners and has a green shield icon on the desktop.

You can easily share Favorites Lists between HP-1’s and HP-2’s as well as between 436’s and 536’s. In order to share Favorites Lists between HomePatrol’s and “x36’s” you need to export from one and import it to the other.

If you have both types of radios you will need to install both versions of Sentinel. Even though they look and feel the same they cannot handle the other radio types. There is no additional learning curve but there are a few terminology differences. For example, in the HomePatrol Sentinel the menu used to read or write to the radio is called “HomePatrol” while the x36 version it is “Scanner”.

EZ-Scan Install Hints

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Everything you need to know about Whistler Scanners and SD-Cards in one handy location!

After installing EZ-Scan on a bunch of computers and talking to several customers on the phone it appears that there are issues installing EZ-Scan from the memory card. This occurs on on various Whistler scanners, like the new TRX-1 and TRX-2 as well as the older WS-1098, 1095, 1088 and 1080’s. It appears that the most problem-free method to follow is to download the installer from the Whistler website and install and update it before connecting to your radio.

Follow these steps and you should be good to go. While we have also installed it fine in some instances from the memory card there have been enough issues to warrant us suggesting this method to avoid problems.
1) Download the software from Whistler (https://www.whistlergroup.com/usa/updates/)
    (Do NOT install the version on the memory card)
2) Install it on your computer from the downloaded file.
3) Check for updates to the SOFTWARE and run them if applicable
4) Connect the scanner to the computer and run the database, firmware and DSP updates via EZ-Scan.
Here at ScannerMaster our folks have used this procedure on several computers with no issues. We did have a problem on a couple computers installing from the SD Card and reverted to the above procedures to make it work.
Remember that on Whistler scanners the scanner needs to be OFF to recognize the card for database updates and programming. This is the opposite of Uniden scanners. Also remember that you can use an SD Card reader to program your radio instead of connecting the radio itself. This is sometimes quicker due to the faster read-write times of a card reader. You still need to connect the radio (with the card installed) to do firmware updates.
Mac users: This worked fine in Windows 7 and Windows 10 using Parallels and BootCamp. Joy for the Rest of Us!
EZ-Scan has the ability to reformat SD Cards from within the application. Instructions are provided at the above software link. You can create spare SD Cards for your scanner in case your regular card gets corrupted. Certain SD-Cards may perform better in the scanner but also know when using larger capacity cards the radio will take longer to become active at startup. Once the radio is on it should work just fine with higher capacity cards, it just takes longer to load.
Whistler mobile radios (TRX-2, WS-1098, WS-1095) use full-size SD Cards (or Mini-SD Cards with the full-size adapter) while the handheld scanners (TRX-1, WS-1088, WS-1080) use Mini SD-Cards. Cards are cheap, buy a good one if you want better results and more reliability.