Digital Radio - Technical

If you look at Jason Morrison’s post below, referencing Andrew Constance.
Why not add your voice with a post to the minister…

https://twitter.com/JasonMorrisonAU/status/1322415108727873538

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Update after spending a day or so with it…

Sounds good, works really well with Bluetooth, but another issue is the small amount of presets - 5 DAB, 5 FM. I usually have between 10-15 DAB presets. Ended up having to use FM presets for the music stations, and AM news talk and sport is using DAB.

Also, the screen is not very big, identifies the station and offers RDS for FM, but any other text a station may offer on DAB won’t come out. Not a huge issue for the average punter, but for here…well, it has to be said.

Not a bad choice, but something to keep in mind.

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I wonder if they can do the emergency overrides on DAB like they do on FM.

Interesting to know, but no real change here in Murdoch/Winthrop, the signal level around 30 seems the same (not sure what this measures though, what most radios push out from a scale of 0 to 100) and still the same sweet spot locations in the house where I can lock on / decode the signal.

It will be interesting to see how the car radio behaves.

I don’t know though, nothing beats good old raw transmission signal power to get the job done. Fiddling with SNR / bandwidth tradeoffs using clever coding works best on paper and ideal conditions.

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Same as before, it starts to break up at the same locations, otherwise OK. If you have line of sight to the south-east (where the transmitter is located) it will come through even from Perth CBD (along Mounts Bay Rd around Kings Park), otherwise if you are blocked you get zero (even in Spearwood/Cockburn area).

Car radio FM reception is way more reliable anywhere south of the river in Perth.

Sorry Coast Radio, if you want reach beyond Mandurah stick to FM and mobile apps with HQ audio and Android Auto compliant.

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In the words of Pauline Hanson… Please explain!?

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Telstra Broadcast Services has designed a fully managed end to end DAB+ solution simplifying the contribution and distribution networks required along with encoding and multiplexing services for the radio broadcasters.

Hmmmm they will add dab repeaters on their mobile towers?

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ABC Sport in Brisbane now

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That’s kind of what I got from it but it was a bit vague for me. If that’s it, it would be a game changer.

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Wow you have excellent reception.

The ABC must be doing these changes in prep for an official rename of ABC Grandstand to ABC Sport…

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It’s all change on the website and ABC Listen app:

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Then I like it.

Only better would be to display CU, EP format and level, data for audio and data for non audio.

Oh and a more sensitive receiver, at least 3dB improvement on current market best.

I love this!

Good on West Coast Radio for going to EEP 1A.

Notice on their text, under the bold 91.7 The Wave; should mention you’re listening to 91.7 The Wave on digital radio. Needs a mention of digital radio for those who are viewing a digital radio product for the first time to understand there’s a difference.

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I have been probably listening to 2CH more now its a digital only station. :slight_smile: My real life experience an EEP 4A, I do notice it break up more often. The other 3A EEP never break up on Pennant Hills Road. 2CH does on regular basis. Even if line of sight to the transmitter audio does drop out from time to time. It could be because there is interference. My car is a Kia Carnival.

At home using the pocket Sangean radio you do notice it compared with 3A. Just leaving a radio in the same spot works fine for 2CH. I know Bill used 4A for many years before but sometimes I wasn’t sure if the feed was playing up, rather it being a 4A issue.

Having said this, I prefer to have the more bits than to sound muddy like like the Triple M/ Hits station and the WSFM/Kiis station. Similar I wish 2UE went back to 3A and went back to 128k , I don’t notice any real difference between 3A and 2A.

So in conclusion, I don’t mind it occasionally drop out, if the sound is good. Perhaps if I lived around Kellyville /Rouse Hill then I may change my mind.

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This reads to me like they are offering hosted ensemble services, not the actual transmitters. Like instead of having the multiplexers etc on physical machines somewhere, I’d assume Telstra would supply a line for you to encode into and would provide a full ready for air ensemble at the transmitter site.

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Ah ok. Thanks for that.

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Presumably all the networks have sorted that all out now though? Unless they are trying to get in on the big money coming from all the pending regional rollouts…

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I’d assume it would be for the regional rollouts

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I kinda jokingly referenced them there - but is it anyone’s expectation that once Gold Coast is sorted out, there’s floodgates opening?

Right now with the effects of Covid on revenue, seems like no broadcaster is really in a position to want to launch DAB, the FM conversions seem to be enough for most stations/markets.

I had assumed that BOG were really on board with DAB, have AM stations in the bigger regional markets and then use DAB to get on parity - but in those markets, Newcastle, Coffs Harbour and Toowoomba for example, they’ve seemingly done nothing to push them to happen.

Murwillumbah they’ve had submissions - but seemingly only to try and get put on the broader Gold Coast DAB, not to try and serve their market itself.

My understanding is that commercial broadcasters right now can just apply to get the ACMA to award a DAB apparatus license, as happened in Mandurah.

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