North American FM Station Database Help

This chart shows what countries are included in this database and their country codes.

Here is the list of Mexican states:

Canadian Provinces:


There are hundreds of formats listed in the WTFDA database. Here you will find a listing of the most common formats. Enter them exactly as you see them in the format field of the database. The most common searches are by frequency & format and state & format.




Search on one field or combination of fields to narrow your search.  Press the search button to begin and output your results.

Results are displayed below this display header. Each field (column) is sortable (except for remarks). Sometimes using a combination of searching and sorting will yield the results you are looking for.

// - This is short for parallel. This means that the callsign shown in the "callsign" field and the callsign shown in the "//" field share the same programming. This does not necessarily mean that the callsign shown in the // field is the originator of that programming.

Use the language pull down menu to search for stations broadcasting in languages other than English.  Use the country pull down menu to select the country.

RDS info will be familiar to anyone using a receiver that displays RDS data. Each station using displays a unique PI code. PI codes are not shown on all RDS receivers and radios. Most DXers regard the logging of a station's PI code as a legitimate logging of a radio station. PTY codes indicate a station's format (program type). This is a standardized list and is mostly accurate however some stations may use an incorrect PTY code. I-Heart (formerlyClear Channel) FM stations also use their own PI codes beginning with 1xxx. These are referred to as bogus calls because decoding these codes results in incorrect callsigns. To search for stations by PI codes, enter the codes in UPPER CASE or the search will return empty.

The Mode field indicates monaural, stereo or HD reception. An empty field denotes stereo. HD is shown when the station broadcasts either in FD and also monaural FM (HD-M).

Longitude and latitude are shown in degrees, minutes and seconds. Thus 75-17-26 is 75 degrees, 17 minutes and 26 seconds.

NO LOGIN IS NEEDED FOR THIS DATABASE.  Login is for the use of editors only.



RDS PI Code to Callsign Converter (for USA)

This is Doug Smith's original program and will work with US callsigns and some Canadian callsigns.
It will not work outside of North America.

PI to Callsign

Callsign toPI

Distance Calculator from Your Location to Any Location on the WTFDA FM Station Database

1. Click on the map graphic above. Find your location. Write down the co-ordinates in DD-MM-SS format and save them.

2. Click on the NOAA logo above. Enter your co-ordinates on the Lat1/Long1 field (but first change the dashes to colons (xx-xx-xx would be entered as xx:xx:xx)!
3. Next enter the co-ordinates of the station you wish to find in the Lat2/Long2 fields (again, changing dashes to colons when entering).
Once you are sure the co-ordinates were entered correctly, press the Compute button and the results will output in the Distance field.
Your output can be in kilometers, nautical miles or statute miles. A statute mile is 5,280 feet. Nautical miles are slightly longer and allow for earth curvature.

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Last updated APRIL 17, 2017

 Group: TV and FM DXing