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The original script was recovered from on the Internet Archive. Most credits to this script to the original author.
Edits to this script to support US Translator PIs and Canadian PIs by the DX Sphere and DX Foxxes/Damian

For information about RDS abbreviations, descriptions and key terms, view RDS Info.

» If you have any news, updates, additions or corrections... e-mail them to [email protected].

RDS PI Code Calculator (for USA)

This identifier works for U.S. stations (both full-powered and translators) and most full-powered Canadian stations.This identifier does not work for stations outside the U.S. and Canada!
This page is designed to calculate the correct PI code value for your station's callsign.
The R(B)DS standard (Source) assigns specific Program Identification (PI) codes to each U.S. station, mapping them from the call letters.
The point is to ensure two stations with the same service area don't end up with the same code.
Otherwise, it is theoretically possible some radios might regard these stations as interchangeable, and automatically tune between them when one's signal fades.
There is no error checking in this JavaScript.
Enter a nonsense callsign and you may get a PI code anyway.
Callsign: (do not enter the -FM or -LP suffix)
PI code: (decimal)
PI code: (hexadecimal)

To check this result:
Go to this page.
Enter the hexadecimal PI code in the upper box.
Click Calculate.
Your station's callsign should appear in the lower box.
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