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Norway to become first country to switch off FM radio

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Re: Norway to become first country to switch off FM radio

#191

Earlier quoted context omitted.

Sort of just what I said. I did state "reportedly" and not provide any sources. I don't think I was being unfair to the EV market. However, buying a new car and junking the old one has to be less energy efficient than owning an old car and trying to use it less while utilizing public transport. Public transport is something I could have mentioned in my original post as it is not prioritized enough here in Norway and…

> ...even though a diesel engine run on veg oil is emissions free. This just isn't true. Local emissions of bio-diesel are comparable to petro-diesel. When you factor in that C02 is absorbed during manufacture, biodiesel is estimated to have 45%-65% lower net emissions than petro-diesel, but that ignores the fact that you just repurposed viable farmland (or in some cases rainforest) and changed its C02 profile, poten…

>Another challenge is what to do with all the waste glycerol (100kg per ton of biodiesel), since prices crashed a few years back

Vape it obviously.

Re: Norway to become first country to switch off FM radio

#192

What are there plans for the AM frequency? I rely heavily on my AM radio stations here in Canada to get my daily dose of local/national/international news!!

Ideally, long wave, AM and FM spectrum will be used for DRM (Digital Radio Mondiale) instead.

To quote Wikipedia: "The principle of DRM is that bandwidth is the limited element, and computer processing power is cheap; modern CPU-intensive audio compression techniques enable more efficient use of available bandwidth, at the expense of processing resources."

https://en.wikipedia.org/wiki/Digital_Radio_Mondiale

Re: Norway to become first country to switch off FM radio

#193

Earlier quoted context omitted.

> even though a diesel engine run on veg oil is emissions free Nonsense.

Well thanks for the well-reasoned and neatly laid out rebuffal, it's what I come to HN for. Perhaps "free from harmful emissions" would be better, I'm not in that field of expertise so I can't say, but if you take issue with plant based fuel over fossil fuels then I would like to hear that rational: preferably in a one word answer sans context. /bitchy

The better response would be (theoretically) "carbon neutral": as long as that diesel is run strictly on biomass-based fuels, the carbon cycle would be completed (it would would be "net zero" in pollution).

That doesn't mean it would be "pollution free", of course; no vehicle can be. For a diesel, you have various gases and particulates, but with proper capture and scrubbing, much of these can be disposed of in more environmentally friendly ways. Plus, most if not all of this tech is already developed and used on current diesel vehicles.

Re: Norway to become first country to switch off FM radio

#194

Earlier quoted context omitted.

Anti-environmental conspiracy theories (the evil electric car lobby are ruining the business of the nice oil providers for no good reason) aren't really any more useful than environmental conspiracy theories and biases ("chemicals" are bad, "natural" means good etc). EVs are better for the environment, both local and global, than ICE cars. That's true on average and even truer for Norway with its cleaner grid. Biodie…

> things that can't be easily electrified, like flying craft Funfact about airplanes: they can pretty easily be converted to run on liquid hydrogen. There was a big Airbus-led research project on this some years back. IIRC they found overall efficiency (when accounting for larger fuel volume etc. etc.) was ~4% lower than normal aircraft. Not to mention that Tupolev actually built and flew a full-scale proof of concep…

That is cool, though currently there's no low carbon source of Hydrogen. Possibly over time excess wind an solar power can be used to generate liquid fuels.

Re: Norway to become first country to switch off FM radio

#195
post #176

OK, so you switch off a completely fine technology with billions invested, rendering useless multi-millions of fine working radios. For what? I think this will be the death blow to radio. People will not go DAB if not absolutely needed, they will essentially try to go "internet" directly and thereby eliminating classic "radio". Maybe you'll use the DAB in your car sometimes, but I can't imagine it will happen that yo…

...and Cars are not there yet. We have strong campaign for DAB once a year here in Germany to remind people that there is something like DAB+. We had one this year again. Thats when I realized that despite using so many rental cars, I haven't seen one with DAB. So I guess it's an extra you have to pay for more then for FM.

I don't know anyone having a DAB radio. I guess people remember the DVBT debacle from a few years ago when they took away the analogue TV program. In the years that followed more and more TV stations dropped out of the DVBT portfolio which was also mostly only available around big cities. Now they come with DVBT2. New hardware, less TV stations and pay options for what you once got for free.

It's a sad rip off strategy and I'm really sorry for radio. Luckily the data plans over here are ridiculous and I hope the resistance will be stronger.

Re: Norway to become first country to switch off FM radio

#196

Earlier quoted context omitted.

Sort of just what I said. I did state "reportedly" and not provide any sources. I don't think I was being unfair to the EV market. However, buying a new car and junking the old one has to be less energy efficient than owning an old car and trying to use it less while utilizing public transport. Public transport is something I could have mentioned in my original post as it is not prioritized enough here in Norway and…

> ...even though a diesel engine run on veg oil is emissions free. This just isn't true. Local emissions of bio-diesel are comparable to petro-diesel. When you factor in that C02 is absorbed during manufacture, biodiesel is estimated to have 45%-65% lower net emissions than petro-diesel, but that ignores the fact that you just repurposed viable farmland (or in some cases rainforest) and changed its C02 profile, poten…

I used to be one of the weirdos collecting waste oil to burn in my VW. That was pretty cool but obviously not everyone can do that.

Re: Norway to become first country to switch off FM radio

#197
post #80

Earlier quoted context omitted.

> Otherwise stopping FM isn't much use. I think the main motivation to shut down FM is that now that DAB is built-out sufficiently (or so they say), running both at the same time is expensive. FM transmitters are supposedly quite power hungry and expensive to operate. It will take at least a decade or two to free up the FM band for other uses anyway. Norway will probably wait and use it in a way that aligns with the…

>It will take at least a decade or two to free up the FM band for other uses anyway. Norway will probably wait and use it in a way that aligns with the rest of the world, rather than finding its own local use for the spectrum. And that's the difference between an entrepreneurial, capitalist minded society and a socialist minded one.

It's not clear that there are any good alternative uses for the FM spectrum.

The UK plan is to move the national stations to DAB and use the old FM bandwidth for community and local radio.

My personal expectation is that the FM spectrum will be taken over by pirate stations.

Re: Norway to become first country to switch off FM radio

#198

Earlier quoted context omitted.

> things that can't be easily electrified, like flying craft Funfact about airplanes: they can pretty easily be converted to run on liquid hydrogen. There was a big Airbus-led research project on this some years back. IIRC they found overall efficiency (when accounting for larger fuel volume etc. etc.) was ~4% lower than normal aircraft. Not to mention that Tupolev actually built and flew a full-scale proof of concep…

That is cool, though currently there's no low carbon source of Hydrogen. Possibly over time excess wind an solar power can be used to generate liquid fuels.

There's steam methane reforming from natural gas; it converts methane to CO2 and H2, and you separate those. This is already a large scale commercial process (e.g. used for hardening fat in food or upgrading petroleum to fuel), giving tens of millions of tonnes per year, and recent plants even include CO2 capture and storage, making it a low carbon source.

Re: Norway to become first country to switch off FM radio

#199
post #186

Earlier quoted context omitted.

The infra used to be state operated, under a cooperation between NRK and Televerket (that in the 90s was turned into Telenor). In recent years NRK has transferred ownership of this to Telenor, and instead rents capacity from them. So effectively it is privately owned and operated, under a "natural" monopoly.

With the caveat that Telenor is 54% owned by the Norwegian government (as of September 2016) [1], with a further 5% owned by Folketrygdfondet (government run social security fund), and a further 0.8% by DNB Asset Management, a subsidiary of the bank DNB ASA, which is again 34% owned by the Norwegian Ministry of Trade and Industry... [1] https://www.telenor.com/investors/share-information/major-sh...

And? The government has declared itself to be a hands off shareholder...

Re: Norway to become first country to switch off FM radio

#200
post #128
post #35

Earlier quoted context omitted.

It can be set independently per station. As an example, in Norway the NRK Jazz channel transmits at 64 kbit/s, while NRK Klassisk (classical music) transmits at 96 kbit/s.

96 kbit/s AAC still isn't enough IMHO. 128 kbit/s OPUS would be awesome :)

DAB mandated the use of MP2, which pre-dated MP3. DAB+ uses MP4 aacPlus(HE-AAC v2).

Unfortunately this doesn't improve sound quality because stations use the extra efficiency to switch to lower bit-rates.

Some countries have stations at 48kbps. The UK is leading the drive to lower sound quality with DAB+ stations on the SDL multiplex at 32kbps.

Note that DAB+ also hides a cost increase because stations have to pay Fraunhofer for its patents. Fun, isn't it? ;-)

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