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Storm
Expert
1,730 Views
Message 1 of 9

Home Hub 5 Data Rate

Can anyone explain whatthe following two lines from my HH5 stats page show:-

6. Data rate:8714 / 41784
7. Maximum data rate:9121 / 60157

Would I be right in thinking that line 7. shows the theoretical maximum throughput and line 6. the actual?

If so I'd be interested to know why the actual is always around 20000 less than the maximum on download!

 

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8 REPLIES 8
Sage
1,725 Views
Message 2 of 9

Re: Home Hub 5 Data Rate

There is an allowance for overheads.

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Distinguished Expert
1,722 Views
Message 3 of 9

Re: Home Hub 5 Data Rate

7 is calculated in ideal conditions, that is noise margin of 0.
6 is negotiated at connect time with target noise margin of 6.
The difference represents the amount lost due to the target noise margin.
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Storm
Expert
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Message 4 of 9

Re: Home Hub 5 Data Rate

Thanks for input. I was just wondering as the differentail between the up and down theoretical max and actual should be similar but upload is around 95% of max and download is just under 70% of max even though the SNR levels are similar.

Surely they should be in the same ball park?

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Distinguished Expert
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Message 5 of 9

Re: Home Hub 5 Data Rate

The range of speeds is greater for download than upload, so to me it's not surprising that the differential is greater also.
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Storm
Expert
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Message 6 of 9

Re: Home Hub 5 Data Rate

Not sure what you mean, can you explain?

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UrbanGrunt
Expert
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Message 7 of 9

Re: Home Hub 5 Data Rate

Your "maximum" upload seems very low.....Should be at least 15

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Checked2013
Expert
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Message 8 of 9

It would be interesting to see what the noise margin is t...

It would be interesting to see what the noise margin is to see why the max upload speed is lower than it should be

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Storm
Expert
1,597 Views
Message 9 of 9

Re: It would be interesting to see what the noise margin is t...

up SNR is 6.5dB

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