Digital Radio - Technical

South facing slope at 115m ASL on O’Grady St in Mt Gravatt is where I went to tune in on Tuesday morning. Full signal 100/100 there.

No signal Monday afternoon at Mt Gravatt’s summit nor the south facing water towers.

@tamago_otoko, what’s signal like over your side of town?

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I plan to be heading up to the Gold Coast in May-June, will be interested to see what reception i get from Byron Bay up, I don’t think there’ll be anything south from there.

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Totally know what you mean… here south of Newcastle (105km from the Sydney DAB tower) its there maybe 20% of the time in the car?

At home virtually 100% due to being 6 floors up.

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And note when I say 100% I mean in terms of signal quality, but the signal strength can be fluctuating and as long as it doesn’t go below the threshold you won’t even realise how close you are to the edge (until you move the radio/antenna even if by no more than 1 m away).

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I find if i stay somewhere where I can see down towards Sydney through a window, reception is generally fine, usually stays above 50%… it’s usually only if i move behind a wall, i lose it, where its then below 30%.

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Cape Byron might be a good place to try. I’ve received Brisbane FM radio from there once.

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Agree, and St Helena Lookout near Byron.

Got a whiff of Brisbane DAB from there last time, not enough for a full decode though.

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I was there earlier today, got a weak but listenable signal of the Brisbane FMs when in the right spots. River 949 came in a lot stronger which is not surprising as it always seems to do much better out this way being from The Knobby instead of Mt Coot-tha.

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Question for those who can receive both Brisbane and Gold Coast DAB+ at the same location:
Do the multi channels (which I assume are identical in both markets) show up twice (once for each multiplex) or does your radio recognize them as the same station and only list them once?

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Yes 2x everything and no auto switching

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Yes, twice for me as well whenever Canberra DAB makes its rare appearance alongside Sydney up here, and no switching… Just says “Service Not Available” if i tried to access say Canberra’s Easy 80s instead of Sydney’s when Canberra has disappeared again.

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Is it possible with DAB+ if everything is setup correctly?
Surely when designing the technology someone had the forethought to allow it to recognise identical stations and auto-switch if program IDs etc match.

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Yea used it in the uk on my sangean

Same with my car radio. There are duplicates. It will depend on how you have the radio sort the stations which can be done alphabetically or by multiplex.

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ive recived brisbane DAB there in my i30 no probs, but the moment you go inland its gone.

I drove to surfers last night and got hot tomato on DAB all the way to the hyperdome on the M1 - alot further than i thought i would

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Yeah River 949 is pretty impressive in that area.

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I can get the Gold Coast Tamborine ‘Test’ DAB+ multiplex at the high spot near the Calamvale Hotel and its stable there with no dropouts but as soon as I leave there it drops out, so the service is likely running as designed with little useful coverage towards Brisbane. Rx was a car radio.

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My further adventures with Gold Coast DAB reception.

I took the DAB radio out to the back patio and climbed a ladder up to the gutter level to test signal strength; thinking about what might be needed in a roof top antenna; I didn’t expect much at that level but was surprised to be able to tune in the mutiplex.

Then trying lower down was surprised to still able to receive with stable 0 error reception standing on the patio. So this is a patio with a SE aspect - no line-of sight to the Gold Coast. Images at the height of the patio railing. Standard built-in whip antenna.


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I’ve got one of those Roberts units myself!

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I used that one because I think it has good sensitivity.

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