Triple J were certainly leaders in the RDS game with there regional expansion 20 odd years ago. In WA, Geraldton (98.9) Southern Ag (92.9) and Central Ag (98.1) all had Triple J PS and RT - Use daily but see your doctor if pain persists (or similar).
Triple J Perth PS was originally PS1 RDS as well. I cant remember when these were all turned off, but Triple J Perth RDS returned when the commercial networks started to embraced RDS.
Odd RDS implentation for the new 90.5 2HD.
No station name but there is 2nd line text.
Comparison with 97.5 below.
This is 90.5
And 97.5
Welcome to the forum, hope you enjoy. We appreciate contributions from those involved in broadcasting, this sub forum of radio, print and online is unlike other sections that are dominated by teenage speculators.
That was me and that was what I got on my SDR
I ckecked 105.3 just before in the car and it was not receiving any RDS. Only stations I received with RDS is Mixx and Edge
I was up at around Wedderburn area at the time and picked it up with my SDRPlay clone. Iāll be up that way next week so Iāll check it out again. From what I remember I also got one for Triple J Ballarat too.
What SDR software are you using to provide RDS decode info?
If itās SDRuno they āuniquelyā provide the PI code as a decimal number,
& also provide the HEX PI code in brackets.
Please only use or provide the HEX number in future to the group else youāll create confusion for most
of us 
Convention for PI code is 4 hex (number system) characters only. (16 bit binary).
Have a look at the technical specs of the RDS binary/hex groups & youāll learn heaps.
Also SDR Console works well with RDS decoding if you can use that.
Very much doubt Triple J Ballarat has RDS eitherā¦
Iām not sure if this applies to your SDRPlay clone dongle, but certainly for the cheap 8bit SDR dongles; you need to set the gain settings correctly for each frequency/location. Aim for best SNR or just below where the noise floor starts to rise. Itās possible the strong Mt Alexander Bendigo signals could overload the SDRPlay clone & produce spurious RDS decodes - SDRPlay RSP1Aās dynamic range isnāt the best either.
The RDS for 90.5 2HD is quite odd. On my car radio, when I tune to 90.5, I get this unusual announcement which Iāve never seen before.
It also appears to make my car radio behave oddly. It will then at times refuse to change stations manually (only by using the presets) or will lower the volume unexpectedly. Itās never happened with any other station.
There also doesnāt appear to be any AF for 90.5 and 97.5, which I guess is not surprising as there is no intended overlap in coverage between the two.
Sounds like the RDS equivalent of pop-up advertising back in the early noughties! It even crashes your system.
I wonder if Group 9 - Emergency Warning System is being incorrectly transmitted in the RDS stream?
Or some odd setting with transmitted TA & TP or PTY combined with with your vehicleās radio TA (Traffic Announcement) setting?
The āRDS SPYā program would likely reveal what is happening with 2HDās 90.5 RDS stream.
I wonder if @RFBurns or @gordo92 can assist you here?
I note the PI code of 2HDās 97.5 service wasnāt set correctly. Recorded as 0000, which would cause some problems with some of the Mitsubishi vehicles as previously mentioned here.
And in my Ford Focus too, it wonāt display any RDS for 97.5 at all.
Went back and had a look at Triple J Swan Hill and this is what I get, itās different to what I got last time
Hi DJ,
A few thoughts:
What open bandwidth were you using to receive the signal?
Should have an ideal filter width of at least 130kHz depending on shape of filter to ensure the
57kHz RDS subcarrier doesnāt get attenuated. Filter bandwidth between 135 & 150kHz probably ideal.
If signal isnāt strong enough can get widely varying PI code results & RT ect.
Should always retune regularly & get the the same RDS (PI code) results each time.
Always configure gain settings for best SNR & least spurious signals.
Does SDR Uno allow you to see the MPX spectrum? It should show the RDS subcarrier?
Try SDR-Console which has great RDS display options. Hopefully it supports your SDR? Iām not sure with researching.
Donāt know what to think of results unless someone else can verify.
so how many of you are aware of RDS for AM/MW? Yes it does have a system called AMSS (Amplitude Modulation Signalling System). It allows AM stations to transmit RDS style data like FM. Iāll bet no stations will ever implement it & I donāt know of any receivers that have it. Interesting concept though.
Iāve heard of it - it would be great for identifying distant stations at nighttime.
I guess with shortwave, weāre starting to get some DRM stations which make IDāing easier. Maybe weāll have DRM on medium wave in regional areas in the future.
And if the ABC and SBS pulled their socks up, they would realise that DRM is the way to go for wide coverage, sustainably affordable digital infrastructure instead of the botched implementation of DAB+
ACMA have reserved plenty of spectrum specifically for DRM as they know that in the long run, itās the right solution.
ABC and SBS may also be surprised that non licence holders are already evaluating the implementation of DRM within Australia.
But given how much noise usually accompanies AM signals at night, it may not be of much use as FM generally requires a clean signal for RDS to be decoded.
I managed to get SDR# working on my SDRPlay clone and I am getting basic RDS. Is there any more advanced settings that i need to play around with? Iāve tried to get RDS Spy up and running with no results.
Hi DJ,
RDS Spy is not easy to get up and running with SDR# - so many steps involved & variables.
Does SDR Console Support your receiver?
Anyway back to RDS Spy.
Need to have Virtual Audio cable configured.
Audio levels need to be right
Need to have correct input source configured in RDS Spy
Need to have the āMPX Outputā addon installed in SDR#& configed to point to your virtual audio cable source.
VERY IMPORTANT: Need a strong signal for RDS SPY in my experience (others results might differ)
SDR# & other SDR# RDS addons + SDR Console will decode when RDS SPY wont with weaker signals.
Make sure filter window is in CENTRE of screen & at least 140kHz wide
RDS SPY decodes best when there is silence or speech or very quiet passages Iāve found
Take things slowly & think things through & follow otherās forum experiences etc.
Good luck
BTW thereās another RDS addon for SDR# called RDS Logger.
Following on from @tvcl post two weeks ago, hereās my detailed RDS capture of the DB64-FM radio station.
The RDS capture is from the TCBL station on 89.9 called Harmony FM.
It broadcasts on Wednesdays only.
Was difficult capturing the RDS due to moving vehicles, wind & being several kms away from transmitter.
This station also using (default?) PI code of FFFF so could be issues with 2SER with some car radios.
If anyone knows someone at the station, who can alter the RDS info - would be good for all.
