Re: DLT Request for Radio Data System (RDS)

[Guy Harris <guy () alum mit edu>]

On Sep 4, 2016, at 6:43 AM, Jonathan Brucker <jonathan.brucke () gmail com> wrote:

> I am posting to request a value for DLT_RDS and LINKTYPE_RDS.
>
> Radio Data System (RDS) is a communications protocol standard
> published in 1992 for embedding small amounts of digital information
> in conventional FM radio broadcasts.
>
> The standard is also known as Radio Broadcast Data System (RBDS) in the US.
>
> References and Specifications:

IEC 62106 Edition 3.0 (2015-03) "Specification of the radio data system (RDS) for VHF/FM sound broadcasting in the 
frequency range from 87,5 MHz to 108,0 MHz", and earlier versions thereof.

> The Offset Symbols are ASCII characters representing the detected
> syndromes for the corresponding Information Words, and are used in
> the interpretation of Information Words, as per RDS standard.

OK, so in this format the offset words are given as ASCII characters rather than as the bit sequences.

I've assigned a value of 265 for LINKTYPE_RDS and DLT_RDS, and added an entry for it in 
http://www.tcpdump.org/linktypes.html; the update to that page probably won't appear immediately, but it should show up 
in 24 hours or so.
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