Talk:Radio Data System
 | Radio Unassessed | ||||||||||||||
| |||||||||||||||
"Traffic Information Memo"
- implemented by Blaupunkt in 1993, worth writing up about.
When the car radio is off - ignition standby or turned off using "on-off" button, it can capture traffic announcements to flash memory. This happens for 6 hours and the logic captures the latest 4 announcements. It can be set to start capturing after a user-set number of hours so the user can capture announcements that occur in the morning peak.
Earliest form of flash-memory audio recording.
Bitspeed
where does the 1187.5 bits/sec come from ? —Preceding unsigned comment added by 128.178.10.21 (talk) 13:36, 28 April 2008 (UTC)
Scrolling RDS
Added a line of information about the use of scrolling RDS. In many places it's use is discouraged because it can distract drivers. This is true in the UK, at any rate, where it's use is not completely outlawed, but is definitely discouraged. Some stations flout this recommendation.
- A number of pirate radio stations along the Northern Ireland border use "scrolling RDS" for displaying advertisements, phone numbers and identifying the song currently playing in the PS (rather than the correct RT field). However as well as the potential road safety/driver distraction issues the system doesn't even work particularly well. The Error correction system used for PS text was only designed for use with static text and unless reception conditions are ideal (rarely the cse in a moving receiver) the data gets corrupted to varying degrees resulting in jumbled text. 80.229.222.48 09:50, 29 April 2007 (UTC)
- "Scrolling PS" was quite popular on U.S. stations in 2005 (among those using REDS at all). Most of the encoders on the market today support it, since the U.S. market for broadcast equipment is so large, even though the standards don't allow for it. The reason it was introduced, of course, is because most car tuners don't implement RT, or require the operator to press a button to display the RT. (Why is that? Because it would be too distracting to the driver for it to scroll automatically, of course! What goes around, comes around.) Back issues of some of the U.S. radio industry's trade journals, like Radio World and Radio Guide, might provide reliable sources for this. (As an aside, I've never seen a U.S. radio that supported AF, although it might be useful in a few northeastern and midwestern states.) 121a0012 03:23, 21 May 2007 (UTC)
- Would it not also be useful for stations using translators (relay transposers) ? 80.229.222.48 09:07, 21 May 2007 (UTC)
- It would -- but translators account for a tiny fraction of U.S. radio listening (even smaller for commercial stations than for FM broadcasting in general, and many of the non-comms are "satellators" with the nominal primary a thousand miles or more away). The stations for whom AF would matter (mostly large public broadcasters in Maine, New Hampshire, Vermont, New York, Wisconsin, Minnesota, Iowa, Nebraska, and the Dakotas) would value it principally for switching among their multiple primary stations, not translators. There are a few markets I can think of there are or were commercial, three-way, all-FM simulcasts; they just aren't numerous enough for AF to be worthwhile. 121a0012 03:31, 22 May 2007 (UTC)
- Would it not also be useful for stations using translators (relay transposers) ? 80.229.222.48 09:07, 21 May 2007 (UTC)
RT and PS
In my place (Lithuania) all stations use PS for displaying data such as clock or "Now Playing" text. grawity (unknown date, forgot to sign after posting)
- Why dont they use RT (radiotext) ? Thats what RT is for 80.229.222.48 09:50, 29 April 2007 (UTC)
- They use RT, but only for information like "M-1 www.m-1.fm", what PS is for. grawity 19:19, 5 June 2007 (UTC)
Incompatability between PTY tables used in RDS and RBDS
Why did the the EBU not make the North American version of RDS more compatable with the European version by (wherever possible) matching equivalent programme types in the PTY table (see below) given the high probability of radios manufactured in Asia for the US and Europe being imported into the "wrong" market ? Surely given the EBU's role in cordinating standardisation this was an act of enormous stupidity ? 80.229.222.48 10:57, 29 April 2007 (UTC)
PTY code RDS Program type (EU) RBDS Program type (USA) 0 No program type or undefined No program type or undefined (OK) 1 News News (OK) 2 Current affairs Information (why not 3 ?) 3 Information Sports (why not 4 ?) 4 Sport Talk 5 Education Rock (why not 11 ?) 6 Drama Classic Rock 7 Culture Adult Hits 8 Science Soft Rock 9 Varied Top 40 (why not 10 ?) 10 Pop Music Country (why not 25 ?) 11 Rock Music Oldies (why not 27 ?) 12 M.O.R. Music Soft 13 Light classical Nostalgia 14 Serious classical Jazz (why not 24 ?) 15 Other Music Classical (why not 13 or 14 ?) 16 Weather Rhythm and Blues 17 Finance Soft Rhythm and Blues 18 Children’s programmes Language 19 Social Affairs Religious Music 20 Religion Religious Talk 21 Phone In Personality 22 Travel Public 23 Leisure College 24 Jazz Music Unassigned (why ?) 25 Country Music Unassigned (why ?) 26 National Music Unassigned (why ?) 27 Oldies Music Unassigned (why ?) 28 Folk Music Unassigned (why ?) 29 Documentary Weather 30 Alarm Test Emergency Test (OK) 31 Alarm Emergency (OK)
RDS abuse
Among the less ethical pirate radio operators in some cities it is a common practive to use the "TA" flag (set permanently on) or PTY (set to "Alarm/Emergency") to "lock" peoples radios to their station. or to use an identical PI code (without the AF data) to another station in order to "steal" that stations listeners. 80.229.222.48 09:50, 29 April 2007 (UTC)
Content and implementation
In this sentence: "Due to transmission vagulearities, CT can only..." Who came up with the word 'vagulearities'? Is that a Bushism? —The preceding unsigned comment was added by Hildenja (talk • contribs) 15:45, August 22, 2007 (UTC).
Fair use rationale for Image:Radio Data System logo.png
Image:Radio Data System logo.png is being used on this article. I notice the image page specifies that the image is being used under fair use but there is no explanation or rationale as to why its use in this Wikipedia article constitutes fair use. In addition to the boilerplate fair use template, you must also write out on the image description page a specific explanation or rationale for why using this image in each article is consistent with fair use.
Please go to the image description page and edit it to include a fair use rationale. Using one of the templates at Wikipedia:Fair use rationale guideline is an easy way to insure that your image is in compliance with Wikipedia policy, but remember that you must complete the template. Do not simply insert a blank template on an image page.
If there is other fair use media, consider checking that you have specified the fair use rationale on the other images used on this page. Note that any fair use images uploaded after 4 May, 2006, and lacking such an explanation will be deleted one week after they have been uploaded, as described on criteria for speedy deletion. If you have any questions please ask them at the Media copyright questions page. Thank you.
