General > General Technical Chat
Investing in a DAB radio company
rdl:
The US has (had?) an odd sort of hybrid digital system called HD Radio. I remember a Sony receiver that was very popular but they discontinued it after only a year or so. People were buying it not for the "HD" but because it had very good reception of the standard radio signals.
Halcyon:
--- Quote from: Bicurico on May 09, 2020, 03:14:12 pm ---What does "British designed and built" mean?
--- End quote ---
Seriously though, it means "Designed and built in Britain from Chinese parts"
tooki:
--- Quote from: MK14 on May 09, 2020, 04:17:18 pm ---UK Gallons vs US Gallons (This always gets me, how on earth can they be different sizes, but the same NAME, crazy).
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Because global standardization is a very, very young concept. It didn't really begin in any meaningful way until the 19th century. Before then, standards were local. So every country (if not even smaller regions!) had its own mile, its own inch, its own pound, its own gallon (or alternatives!)… in the 19th century, as travel became easier, there began to be more need for international standardization. So first, the old units began to be standardized (so for example, a standard pound), and then later they were replaced by metric almost everywhere. The few holdouts remain with a smattering of the remaining semi-standardized units.
Wikipedia has this great image from an 1848 Austrian book with the conversions of the different weight units in use, both into "Viennese Commercial Units" (0.56kg) and "French kilograms": https://upload.wikimedia.org/wikipedia/commons/7/7d/Gewichtmaße1.jpg
Note that while some were already using kg at the time, most were using some form of pound (varying from 301g to 763g), or something altogether unrelated. (For Switzerland, it says a pound was 500g "for most cantons", meaning it wasn't even consistent within this little tiny country!!)
Remember, until railroads, there wasn't even such a thing as synchronized time (i.e. time zones): every place was on its own time, based on sunrise.
MK14:
Thanks, that is brilliant :-+
It has explained WHY, and helped me understand the situation nicely.
Even now, different countries, choose (in some cases), different standards/measurement systems and stuff.
Those decisions, can carry on for many decades and even centuries.
It is why some stuff is so silly. Such as standard tyres, having one of its measurements in metric (millimetres), and the other in imperial (inches).
So, a 195/65R15 tyre, has a width of 195 millimetres and a diameter of 15 inches.
The reason why (tyres/tires), is long and complicated. But, a very quick summary, it is because the US and rest of the west, couldn't agree to sensible standards. The US went its own way, with certain laws (I think), (hence economically, as US is a huge market), somewhat forcing the weird, mixed metric/imperial standard, we see, today.
tggzzz:
--- Quote from: treez on May 09, 2020, 09:14:16 am ---I have been offered the chance to invest in a company making reliable, small DAB radios in UK…”British designed and built, with full warrantee”
How can I find out whether or not the company is simply middle-manning them in from China?
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I see you've found a way to introduce (yet again) one of your two topics.
Are you planning to bring SMPSs into this thread, or to create another?
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