Mitch.Conner said:
rfdesigner said:for high speed signalling/RF that simply means half the high speed loss which often means fatter, more copper, better insulator etc.
Yup.....rfdesigner said:Mitch.Conner said:
You should generally expect to pay for cables that have any sort of power or bandwidth capability on a square law basis... 10x length = 100x cost.
If you double the length you need to halve the loss per unit length.. in power cables that means double the copper per unit length, for high speed signalling/RF that simply means half the high speed loss which often means fatter, more copper, better insulator etc.
Having said all that, I don't think there's much bandwidth or power requirement.
One intersting thing though, we have a 30m "USB" cable at work.. which isn't actually USB all the way as it would never work, instead it's 30m ethernet & ethernet to USB adapters at either end. It's bloomin useful!
retroreflection said:Sometimes a high price is the polite way to say, "I'd rather not bother with this product."
rfdesigner said:retroreflection said:Sometimes a high price is the polite way to say, "I'd rather not bother with this product."
Actually it's the polite way of saying "you're doing it wrong".
you want signalling over 100+ meters.. maybe radio is better.
you want power over 100+ meters.. maybe an extra battery pack is better.
you want power to your city that's a 1000km from the national grid, maybe you want your own stand alone power stations (Perth Aus)