Radio Data System (RDS)


#669

It’s fair dinkum, I thought a pic would prove it :smile:


#670

Saw this today on Triple J in Melbourne. It was fixed during the song within a few minutes. Not sure if it was an error with the actual song tagging or the RDS transmission.


#671

I can’t be sure either exactly the cause of the problem, but for the record I recall seeing occasionally the ‘RT_TEXT=’ with RDS transmission from ABC Classic FM - Sydney.


#672

It’s part of the programming line, that’s what it looks like. @RFBurns what do you think?


#673

My guess would be that the quotation marks in the title haven’t been handled properly and have caused the programming to be read incorrectly.


#674

NEW FM were having RDS issues yesterday.

This kept appearing from time to time


#675

WFM subcarrier signal? Equipment default? Has it reset?


#676

I’d say signal not being decoded correctly. WFM is only two letters less than NEWFM. Happens RDS levels are too low, or group sequence isn’t strong enough.


#677

I was in a strong signal area at the time, it kept alternating between NEW FM and WFM every few minutes.

It could still be a signal issue though, as my Tecsun radio suggests that NEW FM has a low SNR (signal to noise ratio), though there isn’t any audible noise. The signal is still over-deviating… perhaps one or both of those things is causing the RDS issues?


#678

Another oddity about NEW FM’s RDS is that the program type shows as “Talk”


#679

An SDR (Software Defined Radio) can help with resolving S/N signal & RDS issues in being able to ‘see’ what might be happening so one can take corrective action. Multipath & over modulation can effect the decoding.

Also maybe NEW FM haven’t yet properly set-up RDS. A PTY of talk might indicate that on a music station.

Just some thoughts…


#680

A lot of stations additionally just don’t care. I haven’t looked on FM, but PTY stuff on digital is an absolute mess.

I think one of the stations is ‘Folk Music’…


#681

Lol!

Maybe they think that it’s music that us “folks” will listen to.


#682

Sorry for the late reply, yes I’d say you’re both correct, they’ve missed a probable quotation mark in the code & the RDS encoder isn’t reading it correctly.


#683

You’re right, but it depends on how they’ve set up the decoder & what RDS/Reciver monitor they’re using to check with?

Aus/European RDS & US RBDS are different when it comes to PTY.

KIIS & WSFM Sydney had me confused for a while until it clicked, on a normal Aus. radio their PTY is correct, but when I was looking at their receiver monitor, standing in front of the transmitters, it shows the PTY & I thought WTF?
It wasn’t until it dawned upon me, that the receiver monitor is a US one (DEVA Broadcast), KIIS said Country PTY & WS said either Classical or Top40 I can’t remember?


#684

Also saw that and thought that my SDR was playing up.

Corrupted
SDRSharp_2018-04-01_09-54-57
Normal
SDRSharp_2018-04-01_19-56-41


#685

Added Radio Blue Mountains 89.1 to the Australia RDS List (Google Sheet) with additional information.


#686

So that’s back on again?

Wonder why it was off for so long, it wasn’t on for very long originally anyhow.


#687

Look who is going to go offline again :wink::wink:SDRSharp_2018-04-29_10-00-12

Song data is now gone…

And now it’s back at 10:08…


#688

Yup…ABC Classic FM Sydney was ‘yet again’ having that same ‘regular’ issue a day or two ago.