Test: EDGE data speeds

What's to be expected from using EDGE? I did a test, ftp'ing a file
from a highly-accessible server, and got these speeds:

Signal strength 3 dots:
17.46 kB/s
17.49
15.26

Signal strength 4 dots: (moving 20 feet to another location)
22.03 kB/s
22.17

These are k-bytes/sec, and so with check-bits, etc, I'm used to
equating 10 bits with one byte. In other words, I've been getting
throughput (incoming), at 220 kpbs.

Is 220 kbps the best I ought to expect?

(This test was done in Portland, OR, where the app says "Roam / GPRS".)

---

› See More: Test: EDGE data speeds

<[email protected]> wrote in message
news:[email protected]...
> What's to be expected from using EDGE? I did a test, ftp'ing a file
> from a highly-accessible server, and got these speeds:
>
> Signal strength 3 dots:
> 17.46 kB/s
> 17.49
> 15.26
>
> Signal strength 4 dots: (moving 20 feet to another location)
> 22.03 kB/s
> 22.17
>
> These are k-bytes/sec, and so with check-bits, etc, I'm used to
> equating 10 bits with one byte. In other words, I've been getting
> throughput (incoming), at 220 kpbs.

Keep in mind that a byte = 8 bits, so if you want to do the math correctly,
it would be 22 KBps or 176 kbps.

>
> Is 220 kbps the best I ought to expect?
>
> (This test was done in Portland, OR, where the app says "Roam / GPRS".)
>

"efishta" <[email protected]> wrote in message
news:[email protected]...
> <[email protected]> wrote in message
> news:[email protected]...
>> What's to be expected from using EDGE? I did a test, ftp'ing a file
>> from a highly-accessible server, and got these speeds:
>>
>> Signal strength 3 dots:
>> 17.46 kB/s
>> 17.49
>> 15.26
>>
>> Signal strength 4 dots: (moving 20 feet to another location)
>> 22.03 kB/s
>> 22.17
>>
>> These are k-bytes/sec, and so with check-bits, etc, I'm used to
>> equating 10 bits with one byte. In other words, I've been getting
>> throughput (incoming), at 220 kpbs.
>
> Keep in mind that a byte = 8 bits, so if you want to do the math
> correctly, it would be 22 KBps or 176 kbps.
>
SNIP

Yes but usually you have to include start and stop bits hence the reason
people use 10 as the multiplying factor.

TC

Hi:

If you want to get specific you also need to remove the protocol items to
calculate a true data throughput. 10 bits is close enough.

Bob


"efishta" <[email protected]> wrote in message
news:[email protected]...
> <[email protected]> wrote in message
> news:[email protected]...
> > What's to be expected from using EDGE? I did a test, ftp'ing a file
> > from a highly-accessible server, and got these speeds:
> >
> > Signal strength 3 dots:
> > 17.46 kB/s
> > 17.49
> > 15.26
> >
> > Signal strength 4 dots: (moving 20 feet to another location)
> > 22.03 kB/s
> > 22.17
> >
> > These are k-bytes/sec, and so with check-bits, etc, I'm used to
> > equating 10 bits with one byte. In other words, I've been getting
> > throughput (incoming), at 220 kpbs.
>
> Keep in mind that a byte = 8 bits, so if you want to do the math
correctly,
> it would be 22 KBps or 176 kbps.
>
> >
> > Is 220 kbps the best I ought to expect?
> >
> > (This test was done in Portland, OR, where the app says "Roam /
GPRS".)
> >
>
>


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[POSTED TO alt.cellular.cingular - REPLY ON USENET PLEASE]

In <[email protected]> on 13 Mar 2005
21:51:11 -0800, "[email protected]" <[email protected]> wrote:

>What's to be expected from using EDGE? I did a test, ftp'ing a file
>from a highly-accessible server, and got these speeds:
>
>Signal strength 3 dots:
>17.46 kB/s
>17.49
>15.26
>
>Signal strength 4 dots: (moving 20 feet to another location)
>22.03 kB/s
>22.17

Those are good EDGE speeds.

>These are k-bytes/sec, and so with check-bits, etc, I'm used to
>equating 10 bits with one byte. In other words, I've been getting
>throughput (incoming), at 220 kpbs.

No, just 8-bit bytes ( this isn't async serial , so you're topping out at
about 180 Kbps.

>Is 220 kbps the best I ought to expect?

180 Kbps is the best you ought to expect.

Use Google Groups to find my prior posts with detailed performance data on
EDGE connections.

--
Best regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES:
John Navas <http://navasgrp.home.att.net/#Cingular>

[POSTED TO alt.cellular.cingular - REPLY ON USENET PLEASE]

In <[email protected]> on Mon, 14 Mar 2005
14:51:10 GMT, "Tony Clark" <[email protected]> wrote:

>
>"efishta" <[email protected]> wrote in message
>news:[email protected]...
>> <[email protected]> wrote in message
>> news:[email protected]...
>>> What's to be expected from using EDGE? I did a test, ftp'ing a file
>>> from a highly-accessible server, and got these speeds:
>>>
>>> Signal strength 3 dots:
>>> 17.46 kB/s
>>> 17.49
>>> 15.26
>>>
>>> Signal strength 4 dots: (moving 20 feet to another location)
>>> 22.03 kB/s
>>> 22.17
>>>
>>> These are k-bytes/sec, and so with check-bits, etc, I'm used to
>>> equating 10 bits with one byte. In other words, I've been getting
>>> throughput (incoming), at 220 kpbs.
>>
>> Keep in mind that a byte = 8 bits, so if you want to do the math
>> correctly, it would be 22 KBps or 176 kbps.
>>
>SNIP
>
>Yes but usually you have to include start and stop bits hence the reason
>people use 10 as the multiplying factor.

There are no start and stop bits -- it's a synchronous stream, not start-stop
async.

--
Best regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES:
John Navas <http://navasgrp.home.att.net/#Cingular>

[POSTED TO alt.cellular.cingular - REPLY ON USENET PLEASE]

In <[email protected]> on Tue, 15 Mar 2005 14:45:28
GMT, "Bob L." <[email protected]> wrote:

>If you want to get specific you also need to remove the protocol items to
>calculate a true data throughput. 10 bits is close enough.

It's actually only about 8 bits -- protocol overhead is quite low.

>"efishta" <[email protected]> wrote in message
>news:[email protected]...
>> <[email protected]> wrote in message
>> news:[email protected]...
>> > What's to be expected from using EDGE? I did a test, ftp'ing a file
>> > from a highly-accessible server, and got these speeds:
>> >
>> > Signal strength 3 dots:
>> > 17.46 kB/s
>> > 17.49
>> > 15.26
>> >
>> > Signal strength 4 dots: (moving 20 feet to another location)
>> > 22.03 kB/s
>> > 22.17
>> >
>> > These are k-bytes/sec, and so with check-bits, etc, I'm used to
>> > equating 10 bits with one byte. In other words, I've been getting
>> > throughput (incoming), at 220 kpbs.
>>
>> Keep in mind that a byte = 8 bits, so if you want to do the math
>correctly,
>> it would be 22 KBps or 176 kbps.
>>
>> >
>> > Is 220 kbps the best I ought to expect?
>> >
>> > (This test was done in Portland, OR, where the app says "Roam /
>GPRS".)
>> >
>>
>>

--
Best regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES:
John Navas <http://navasgrp.home.att.net/#Cingular>