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Mbps vs. mbps

pickles

Mar 26, 2011, 11:24 PM
I'd like to point out that the article states this phone is capable of speeds of 5.76 Mbps, which is accurate, but could be confusing. Mbps is megabytes per second, whereas mbps refers to megabits per second. This phone runs at 14.4 mbps or 14.4 megabits per second, which is equal to 5.76 megabytes per second. All of the speeds carriers advertise are in mbps (megabits per second), not Mbps.
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Azeron

Mar 27, 2011, 8:33 AM
So...I'm getting dizzy now.
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analyst422

Mar 27, 2011, 12:06 PM
I've always understood it as:

MBps = Megabytes per second
Mbps = Megbits per second.

Either way...
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WiWavelength

Mar 28, 2011, 9:42 AM
analyst422 said:
I've always understood it as:

MBps = Megabytes per second
Mbps = Megbits per second.


Yes, this is correct. Pickles is wrong. The SI prefix for 10⁶ is "M," which is always uppercase.

AJ
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pickles

Mar 28, 2011, 8:07 PM
i was wrong on the terminology, my point is still the same. thanks for clearing that up.
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WiWavelength

Mar 29, 2011, 8:36 AM
pickles said:
i was wrong on the terminology, my point is still the same.


What was your point?

AJ
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WiWavelength

Mar 28, 2011, 9:47 AM
Your correction is incorrect. See analyst422's post regarding megabytes vs megabits.

Additionally, a byte is eight bits, not two bits. So, 14.4 megabits per second is 1.8 megabytes per second, not 5.76 megabytes per second.

Please be careful w/ your attempted corrections lest you confuse others.

AJ
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pickles

Mar 28, 2011, 8:09 PM
i didn't bother to do the math i assumed phonescoop was right on their figures. either way both phones run at 14.4 megabits per second according to motorola and htc, so i'm not sure where PS got 5.76 megabytes per second from.
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WiWavelength

Mar 29, 2011, 8:44 AM
pickles said:
i didn't bother to do the math i assumed phonescoop was right on their figures. either way both phones run at 14.4 megabits per second according to motorola and htc, so i'm not sure where PS got 5.76 megabytes per second from.


No, you are very confused. You should stop posting "corrections" until you better understand the technology. The Phonescoop article references HSUPA, which is an uplink technology. And HSUPA is theoretically limited to 5.76 Mbps. The 14.4 Mbps figure that you cite is the HSDPA or HSPA+ downlink. Uplink & downlink are not interchangeable, nor are they typically symmetrical.

AJ
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GettingSleepy

Mar 29, 2011, 5:37 PM
WiWavelength said:


Uplink & downlink are not interchangeable, nor are they typically symmetrical.

AJ


I wonder why that is? You'd think that information being transmitted using the same method would transmit at the same speeds regardless of which end was transmitting or receiving.
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