Speed vs distance from cabinet

Hi
Hopefully a quick question. My cab is about to be enabled for fibre and I estimate my house is approx 300m away from the cabinet. I know there are many variables but as a very rough guide what do you guys think I will see in download speeds?
(Getting excited!).
Thx in advance

this graph will give you an idea of the fibre degredation over distance from cabinet
If you like a post, or want to say thanks for a helpful answer, please click on the Ratings star on the left-hand side of the post.
If someone answers your question correctly please let other members know by clicking on ’Mark as Accepted Solution’.

Similar Messages

File transfer speed and distance from base station?

I tested the file transfer time (outside with no obstructions) by moving a large video file between my MacBook and a computer wired to an Airport base station. The times were the same as distance increased until the connection dropped. Why?

Do the calculations.
(Although wireless qualifies more for voodoo project than science).
500MB translates to 5.7MB/s which is near enough to 46Mbits/s
500MB in 94sec is 42.6Mbits/s
That is really slow for 5ghz at such close distance to the airport.
What OS are you running? Please open the wireless diagnostics.
About Wireless Diagnostics - Apple Support
Run the wireless utility.
And get the actual link speed and how well it is working.
Then use iperf to get actual network speeds. Rather than moving a file test the link rates.
iperf is included in Mac OS and is available via terminal.
This post gives some clues. http://acidx.net/wordpress/2013/05/testing-a-network-connection-with-iperf/
I think your seeing a hold up due to slow ethernet say.. 100mbit ethernet will ruin any numbers you are trying to get in tests. As well as older slow Mechanical hdd in laptops.
But the link speed in the Utility will tell you the story.. if you link at 450Mbps which should be possible up close.. and it drops to say 200Mbps at a range of 130M you are still far faster than the rate determining step.. very likely to be a slow disk plus slow ethernet.
Go to the performance tab.. and keep it running as you move the computer from next to the Airport to the 130M point. You should see a pretty large drop in connect speed.. but you also need to keep this running as you transfer files.. since it tends to vary greatly during a file transfer.
For science experiments.. this is already a pretty good one.. you are trying to determine the rate determining step in a network system and why wireless is not causing the problem you expected. The use of actual diagnostic tools is great.. almost like science.
The big spike in this graph is me changing from 2.4ghz to 5ghz.

BT Infinity 1 - 2.4km from cabinet

For years we have had BT Total Broadband 3 (ADSL) and after a lot of experimenting I managed to get actual download speeds of around 3.5Mbps / synching at 4096kbps (4.3km from exchange along main roads) by plugging adsl filter into the test socket and using a wireless phone instead of the extentions (I lost about 1Mbps if I plugged in the faceplate).
Two weeks ago I upgraded to BT Infinity 1which I believe is fibre to cabinet and then copper wires - an engineer came and fitted a Openreach MK3 faceplate and installed a HH5. He told me that I only had 12Mbps (estimate 2.4km from cabinet) and then left pretty sharpish. By the time I had connected my laptop this had fallen to 10Mbps - and now it is about 5.5Mbps. When I ordered I was quoted 16-20Mbps.
During the first few days our wireless devices kept disconnecting and I kept restarting the HH5 - until I read that this could be due to the dual frequency so I separated the signals and that seemed to sort it out. The speed has settled at around 5-6Mpbs which is very disappointing. I have contacted the helpsdesk several times but all they seem interested in doing is running speedtests and resetting the HH5 to factory default.
Please, does anyone know if there is anything I can do to increase the speed - or do I just have to put up with what I've got? An extra 2Mbps switching from ADSL to FTTC doesn't seem right to me!
1. Product Name: HomeHub5
2. Serial number: +076284+1430012993
3. Firmware version: v0.07.03.0814-BT (Type B) Last updated 3/12/2014
4. Board version: 01
5. VDSL uptime: 0 days, 09:23:36
6. Data Rate: 997 / 5791
7. Maximum Data Rate: 1253 / 9410
8. Noise Margin: 7.0 / 10.6
9. Line Attenuation: 0.0 / 32.2
10. Signal Attenuation: 0.0 / 0.0
11. Data sent/received: 100.0 MB / 498.6 MB
12. Broadband username: [email protected]
13. BT Wi-fi: Yes
14. 2.4GHz wireless network/SSID: BTHub5-####
15. 2.4GHz wireless connections: Enabled (802.11 b/g/n (up to 144 Mb/s))
16. 2.4GHz wireless security: WPA2 Only (Recommended)
17. 2.4GHz wireless channel: Automatic (Smart Wireless)
18. 5GHz wireless network/SSID: BTHub5-####
19. 5GHz wireless connections: Enabled (802.11 a/n/ac (up to 1300 Mb/s))
20. 5GHz wireless security: WPA2 Only (Recommended)
21. 5GHz wireless channel: Automatic (Smart Wireless)
22. Firewall: Default
23. MAC Address:
24. Software variant: -
25. Boot loader: 0.4.3-BT (Fri May 30 23:34:17 2014)
Any help would be much appreciated. Thank you.

Hi woo16,
How confident are you that you are 2.4km from your cabinet ? Bear in mind that phone lines do not always take the sortest route.
If you are 2.4km from your cabinet and have a good clean line the following table gives an estimate of 13Mbps, viz :-
Table of FTTC speed against distance from the street cabinet
Distance from the street cabinet (km)
FTTC fibre broadband connection speed (Mbps)
0
80
0.1
80
0.2
80
0.3
76
0.4
69
0.5
60
0.6
51
0.7
43
0.8
35
0.9
31
1
28
1.1
26
1.2
24.5
1.3
23
1.4
22
1.5
21
1.6
19.8
1.7
19
1.8
18
1.9
17
2
16.5
2.1
15.5
2.2
14.8
2.3
14
2.4
13.3
2.5
12.5
2.6
11.7
2.7
10.8
2.8
10.2
2.9
9.4
3
8.7
Best regards,
dfenceman

What is the longest distance from the cabinet that...

Hi,
I've seen the charts and tables now I would like to know what the longest distance from the cabinet anyone has actually achieved 25Mbps with FTTC please ?
Best regards,
dfenceman

It's hard to say, I'm between 800 - 1000m I would imagine and get 26Mbps.
31db Attenuation which seems a bit wrong to me, though an engineer told me that so it may be incorrect.
The charts are only a ratio as well with basis of an average line, you may have a bad line or a good quality line.
You could find out but I doubt you will find the volunteers and wish to put months of hard work into it.
If this helped you please click the Star beside my name.
If this answered your question please click "Mark as Accepted Solution" below.

1.4km from cabinet..is this the end?

My BT Infinity installation failed as I am 1.4km from where the cabinet has been sited.
I live about half a mile from the edge of the town
Now what?
Have I been abandoned for all eternity?
Are there any bespoke solutions?

Hi iaintaylor,
The Fibre infrastructure and "last mile" infrastructure that BT Retail and other ISPs use for their fibre broadband services/products (exluding Cable or KCom networks) are owned, installed and maintained by Openreach.
1) What does it say in the grid when you enter your landline number into the BT Wholesale database? http://dslchecker.bt.com/adsl . Please copy and paste the "Grid" with all the available services for your line into a new post.
If you don't have a BT Wholesale reconisable number then try your Address here: http://dslchecker.bt.com/adsl/ADSLChecker.AddressOutput
Remember to delete your landline number or address before posting it here.
2) FTTC fibre broadband uses VDSL2 signals that travel from the FTTC cabinet to your property via the existing copper (sometimes aluminium) line and can currently achieve upto 80mbps. The further away you are from your FTTC cabinet the slower the fibre FTTC broadband will be.
However VDSL/2 signals used for FTTC broadband connection degrade far quicker in terms of distance than conventional ADSL broadband signal do.
Generally speaking if your landline is over 1500 meters in length from the FTTC cabinet to your property then you may not be able to get BT Infinity as you may not be able to achieve over 15mbps, though maybe able to get BT Retail's sub 15mbps FTTC fibre broadband service called BT Faster Unlimited broadband (FTTC) if your line can cope with the VDSL/2 higher frequencies.
Here is a graph that shows the ADSL(G.DMT,ADSL2 and ADSL2+) and VDSL/2 (FTTC) signal with distance. Please be aware that all ADSL connections are depend on distance from local exchange, where as FTTC (VDSL/2) connections are depend on distance from your FTTC (DSLAM) cabinet. Though all connection types are also depend on line quality.
This graph is also just a general estimation of what the speed could be achieved and not the actual speed you will receive. Also your line maybe longer than you would think as it may not go the direct way to either the cabinet.
There is a thing called FTTP on Demand (FTTPoD) where FTTC areas can request to get FTTP installed to their property if their exchange has been allows FTTPoD (though this is not supported by any ISPs at the moment), though may cost you thousands if you go down this route once ISPs take up this FTTPoD service.
jac_95 | BT.com Help Site | BT Service Status
Someone Solved Your Question?
Please let other members know by clicking on ’Mark as Accepted Solution’
Try a Search
See if someone in the community had the same problem and how they got it resolved.

What distance from the Cab ?

Hi All I,m after some info regarding speeds you get on Infinity , what distance from the green cabinet do you have to be to get 40meg speed ? thanks
JamJar62

You'll never see 40 on a speedtest, not at the moment anyway. With a 40meg sync, your profile would be around 38710. On a speedtest you'll get about 37
If you want to say thanks for a helpful answer,please click on the Ratings star on the left-hand side If the the reply answers your question then please mark as ’Mark as Accepted Solution’

Switched long distance from At&t to verizon in February still no long distance capabilites, WHY?

Switched long distance from At&t to verizon in February still no long distance capabilites, WHY? I have made numerous calls in the last few months and still am not able to make a long distance call. Do I need to switch back to AT&T. I have been using Skype but doesn't Verizon want the business?

Some verizon people do look here but this forum is mostly for user to user help.
Try "contact us" http://www.verizon.com/contactus

Mesh Distance from Root AP to Mesh AP

Hi all,
In 5508 WLC what does this mean
Mesh Root AP to Mesh AP 11000 Feet.
Need to understand what does Root AP and MEsh AP mean?
IS this distance from WLC to AP?
Thanks
MAhesh

RAP-to-MAP ratio—Recommended maximum ratio is 20 MAPs per RAP.
* AP-to-AP distance—A spacing of no more than of 2000 feet (609.6 meters) between each mesh access point is recommended. When you extend the mesh network on the backhaul (no client access), use a cell radius of 1000 feet (304.8 meters).
For more clarity please go through the below link:
http://www.cisco.com/en/US/docs/wireless/technology/mesh/7.0/design/guide/MeshAP_70.html

Distance from a Zip Code

I have a list of 500 names with corresponding zip codes and I want Numbers to automatically tell me the distance the person's zip code is from a default zip code. Is there any way to do this so I don't have to put each one individually into Google Maps? Any help is appreciated!

"Once you know the coordinates of the two you can computer a distance by:
assuming LAT is x and LONG is y:
D = sqrt((x1 - x2)^2 + (y1 - y2)^2)
or the square root of the sum of the squares"
Works well if the earth is flat. But it's not, and the Pythagorean equation is a bit too simple.
Here's an example: two pairs of coordinates; both pairs with the same NS difference and the same EW difference in location, measured in degrees and minutes.
Austin to San Diego
San Diego is at N 32° 42' W 117° 10'
Austin is at      N 30° 16' W 97° 44'
Difference:           2° 26', 19° 26'
? to Spokane
Spokane is at N 47° 40' W 117° 26'
- same Difference: 2 26        19 26
? is at             N 45° 14' W 98° 00' (near Aberdeen SD).
x1 and x2 are the same in both cases, as are y1 and y2.
But the 'crow's flight' distance from Austin to Sandiego is 1860 km, and from near Aberdeen to Spokane is 1509 km, using the calculator at http://www.movable-type.co.uk/scripts/latlong.html
Even those are described as 'close enough in most cases, as they're based on the assumption the earth is a (perfect) sphere. Not accounting for the equatorial bulge results in errors of up to 0.3%, according to the site linked above.
The site also includes the necessary equations.
The site also notes that 'for short distances' the Pythagorean calculations 'may be close enough.'
Regards,
Barry

How do I remove speed dating sites from the computer?

i would like to remove speed dating sites from the computer. how can i do this?

Probably caused by Malware on your PC.
Install, update, and run these programs in this order. They are listed in order of efficacy. '''''(Not all programs detect the same Malware, so you may need to run them all to solve your problem.)''''' These programs are all free for personal use, but some have limited functionality in the "free mode" - but those are features you really don't need to find and remove the problem that you have. 
''Note: If your Malware infection is bad enough and you are mis-directed to URL's other than what is posted, you may have to use a different PC to download these programs and use a USB stick to transfer them to the afflicted PC.''
Malwarebytes' Anti-Malware - [http://www.malwarebytes.org/mbam.php] 
SuperAntispyware - [http://www.superantispyware.com/] 
AdAware - [http://www.lavasoftusa.com/software/adaware/] 
Spybot Search & Destroy - [http://www.safer-networking.org/en/index.html] 
Windows Defender: Home Page - [http://windows.microsoft.com/en-US/windows7/products/features/windows-defender] 
Also, if you have a search engine re-direct problem, see this: 
http://deletemalware.blogspot.com/2010/02/remove-google-redirect-virus.html
If these don't find it or can't clear it, post in one of these forums for specialized malware removal help: 
[http://www.spywarewarrior.com/index.php] 
[http://forum.aumha.org/] 
[http://www.spywareinfoforum.com/] 
[http://bleepingcomputer.com]

My wifi-connection stops by taking some distance from my router, let's say 4 meters (12feet) reseting network setting etc, doesn't help

my wifi-connection stops by taking some distance from my router, let's say 4 meters (12feet) reseting network setting, etc, doesn't help!
any suggestions?
jonathan

neuwerld wrote:
Ohh thanks guys!
It worked as a charm, and thanks Brisbin33 for the autostart.sh tip.
So the thing that caused my whole system not to work as it should was that I forgot to put a "&" after conky?
haha that´s kinda anoying I have been sitting and looking through like a milllion files looking for the answer
But again, really thanks!
/Neuwerld
that little "&" sends the conky process to the background freeing up the current process (your autostart.sh script) to finish doing what it's doing so you can move on to running openbox itself. with this in mind, it should be obvious why keeping conky in the foreground would cause problems.
also, replacing it with (sleep 1 && conky) & means... wait a second, when that's done successfully (&&) run conky, and put all of that () to the background. that way openbox comes up immediatly and only a second later you've got your panel and monitor.
all this after .xinitrc and before openbox

11 Days in Speed has gone from 55 to 7. BT Call ce...

Title says it all really.
Infinity was installed on the 30th of April speeds were great at 55 through out the week they slowed down to 36 which was great as I was told my max speed would be 30. However over the last few days my speed has dropped to 13-16 but has gone as low a 7
I phoned BT overseas call centre and was promised that the would fix my fault by then end of the call, then BT flatly refused to do anything as I was in side the 10 days. Explained that I wasnt. 9 days into May and the 1 day in April makes 10 days. So after I and the person on the other end of the phone counted the days out in sequence and realised I had had it for 10 days, he turned around and said we dont count the first day, and your days will not be up till Midnight Friday.
Thats 12 days by my counting
I then got a very condersending story about how the internet works. "Let me explain so you will understand. When a baby is born it can not walk that is like your connection to the internet. When the baby reaches 2yrs old it can move faster but still not run, when its older still then it can run, This is like the 10 days you connection need"
All I want is my Ip profile reset as it and my max line speed have dropped from 70+ to 38.6 to 19.8
Do i have to wait till Midnight Friday or is there someone else I can ask to get my Ip profile reset.
I just want the 30 I was promised

Till I can post the BT speedtest result
Here is the quote from the email Irecieved when signing up to Infinify and Speedtest.net results from day 1 to yesterday.
Email when signing up for Infinity
Your broadband starts on:
30 Apr 2012
Your download speed should be: 30Mb
Your upload speed should be: 5.7Mb
Speedtest.net results since getting infinity 11 days ago
4/30/2012 3:17 PM
GMT
43.01
5.78
18
London
50
4/30/2012 3:52 PM
GMT
41.01
5.74
18
London
50
4/30/2012 4:31 PM
GMT
41.37
5.8
18
London
50
4/30/2012 4:36 PM
GMT
34.52
5.79
19
London
50
4/30/2012 4:38 PM
GMT
43.32
5.77
18
London
50
4/30/2012 4:45 PM
GMT
42.87
5.82
15
London
50
4/30/2012 5:42 PM
GMT
40.93
5.77
18
London
50
4/30/2012 9:58 PM
GMT
45.12
5.78
18
London
50
4/30/2012 9:59 PM
GMT
41.81
5.75
19
London
50
4/30/2012 10:01 PM
GMT
55.34
5.76
26
London
50
4/30/2012 10:02 PM
GMT
52.76
5.75
18
London
50
05/04/2012 17:08
GMT
39.92
5.84
18
London
50
05/05/2012 21:24
GMT
23.63
5.46
15
Kingston Upon Hull
100
05/06/2012 08:20
GMT
37.27
1.58
25
Maidenhead
50
05/06/2012 15:14
GMT
37.62
5.18
25
London
50
05/06/2012 15:17
GMT
36.9
5.17
25
London
50
05/08/2012 17:08
GMT
20.01
4.66
25
Coventry
50
05/08/2012 17:10
GMT
20.01
4.51
25
Coventry
50
05/08/2012 18:21
GMT
30.4
1.87
25
Maidenhead
50
05/08/2012 18:23
GMT
37.28
4.79
35
London
50
05/08/2012 18:25
GMT
37.05
4.26
35
Leeds
150
05/08/2012 18:28
GMT
37.36
4.71
35
Leeds
150
05/08/2012 19:53
GMT
37.01
4.99
35
Preston
150
05/08/2012 20:40
GMT
37.3
4.98
35
Preston
150
05/08/2012 21:42
GMT
37.37
4.98
35
Preston
150
05/08/2012 22:05
GMT
37.45
4.98
35
Preston
150
05/09/2012 12:23
GMT
18.7
4.19
25
London
50
05/09/2012 12:37
GMT
18.6
4.19
25
London
50
05/09/2012 13:54
GMT
18.58
4.2
25
London
50
05/09/2012 14:09
GMT
18.71
4.18
25
London
50
05/09/2012 16:23
GMT
18.69
4.19
35
Preston
150
05/09/2012 17:11
GMT
8.02
3.34
55
Leeds
150

Broadband download speed has dropped from ~2.7Mbps...

Hello,
For the last few weeks our broadband download speed has dropped from ~2.7Mbps (which we've been getting consistently for years) down to 0.7Mbs. It's now so low that our download speed is slower than our upload speed. I've take the following steps and nothing has worked:
Running the BT Broadband Speed Checker
Removing all equipment so its just the BT Home Hub connected through a BT Microfilter straight into the master socket
Replacing the modem cable and Microfilter
Online line fault check
As I say, it only recently - over the last few weeks - that our speed has decreased so massively from what we've been getting for years and it is extremely frustratingly slow - I can get faster speeds via my mobile phone's 3G network.
Here's a screenshot of the ADSL line status from the BT Home Hub.

when you joined BT broadband you would have received an email address *****@btinternet.com or ******@btopenworld.com Bt would normally send the emails to that address
If you like a post, or want to say thanks for a helpful answer, please click on the Ratings star on the left-hand side of the post.
If someone answers your question correctly please let other members know by clicking on ’Mark as Accepted Solution’.

Broadband speed has dropped from 8mb to 2mb

hi there been a with bt over 12 months, and connection wize i have been getting 8mb. but recently as last week my broaband speed has dropped to under 2mb, i have tried various things like resetting and ethernet, wifi, but my speed still has not improved,, which is qiet annoying as i do alot of online gaming and web browsing, and i am at lost to how my connection has dropped so much speed i will list details below of my router settings and from speedtester bt..
router settings
ADSL line status
Connection information
Line state
Connected
Connection time
4 days, 18:05:39
Downstream
8,128 Kbps
Upstream
448 Kbps
ADSL settings
VPI/VCI
0/38
Type
PPPoA
Modulation
ITU-T G.992.1
Latency type
Fast
Noise margin (Down/Up)
14.1 dB / 21.0 dB
Line attenuation (Down/Up)
14.0 dB / 7.0 dB
Output power (Down/Up)
15.8 dBm / 12.0 dBm
Loss of Framing (Local)
0
Loss of Signal (Local)
0
Loss of Power (Local)
0
FEC Errors (Down/Up)
0 / 0
CRC Errors (Down/Up)
10 / N/A
HEC Errors (Down/Up)
N/A / 0
Error Seconds (Local)
10
speedtesterbt results,
FAQ
Test1 comprises of Best Effort Test: -provides background information.
Download Speed
1785 Kbps
0 Kbps
2000 Kbps
Max Achievable Speed
Download speedachieved during the test was - 1785 Kbps
For your connection, the acceptable range of speeds is 400-2000 Kbps.
Additional Information:
Your DSL Connection Rate :8128 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
IP Profile for your line is - 2000 Kbps
If you wish to discuss these results please contact your ISP.
If you are experiencing problems with specific applications, servers or websites please contact your ISP for assistance.
Your test has completed please close this window to exit the performance tester.
Please visit FAQ section if you are unable To understand the test results.
also here is my speed tests results from speedtest.net
http://www.speedtest.net/result/1561527773.png
any help would be much apreciated

Moiriv wrote:
I am having the same problem.
I have been getting 7mbss on my 8mbps unlimited line for 4 years and now it has dropped to 2.5mbps
BT speedtest results as of today:
1. Best Effort Test: -provides background information.
Download Speed 2.52 Mbps 0 Kbps 7.15 Mbps Max Achievable Speed
Download speedachieved during the test was - 2.52 Mbps For your connection, the acceptable range of speeds is 600 Kbps-7.15 Mbps. Additional Information: Your DSL Connection Rate :8 Mbps(DOWN-STREAM), 448 Kbps(UP-STREAM) IP Profile for your line is - 2.5 Mbps
Did you get you're speed limit back up to normall?
Looks like Home hub logs show that someone from BT has modified my profile, I'll post here again if I get resolved or not.
the last post is almost 4 months old!
your profile has dropped to 2.5mb as a result of a drop in connection speed. if you stay connected 24/7 fro 3/5 days your profile should return to normal. just make sure your router does not drop connection
If you like a post, or want to say thanks for a helpful answer, please click on the Ratings star on the left-hand side of the post.
If someone answers your question correctly please let other members know by clicking on ’Mark as Accepted Solution’.

Calculating distance from sensor

I have linear sensor(0,7metres) with analog 4-20 mA signal,
how i can calculate total distance, when sensor goes up and down while the program is running, i.e. sensor starts from 0 goes to max. 0,7 metres and back to zero -> 1.4 metres

The information you get from your sensor is the position. To obtain the overall length of all the displacements (Distance) you have to :
1/ calculate the instant speed : make consecutive readings of the position at defined time intervals, and divide the difference between the positions (DeltaPos) by the DeltaT. The lower the DeltaT, the higher the sensitivity to tiny displacements, but also to signal noise...
2/ integrate the absolute value of speed over time.
Not difficult again : get the absolute value of the speed, multiply by the DeltaT (?!), then add to the previous distance to get the new one.
As you can see there is a kind of stupid operation here : division then multiplication by DeltaT. Well, if you don't need specifically the speed inform
ation, you can suppress this step and just calculate Sum(Abs(DeltaPos)).
The attached vi is an example of what you could do.
Does that help, or am I missing something ?
Chilly Charly (aka CC)
E-List Master - Kudos glutton - Press the yellow button on the left...
Attachments:
Position.tiff ‏4 KB

Speed vs distance from cabinet

Similar Messages

Maybe you are looking for