Distance From Exchange?

D

davidpey

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Bryanston, JHB
Hi all,

Other than phoning 0800 375 375 and asking, is there any way for me to find out how far I am from my exchange? What does the exchange even look like? Is it a building? :o :)

Cheers,
D
 
Find a technician and ask him. Mine confirmed where I thought mine was yesterday.
 
It's usually a big brown facebrick building with no windows, probably 2 - 3 stories high. Where abouts are you?
 
Not too sure about the East Rand. I'll ask a friend who lives in Edenvale if he has any idea. Maybe try and flag down a Telkom van and ask one of the techies.
 
Alchemist said:
I'll ask a friend who lives in Edenvale if he has any idea.
Click to expand...

Thanks, I would really appreciate that. After speaking to someone at Axxess, was told that you should not ever be further than 5km from the exchange.
 
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You should be able to get a good approximation to the distance from the exchange from the downstream attenuation ratio in decibels as reported by your router - divide this figure by 13.81 to get the distance in km.
 
Thanks :) Amazing that you know that. According to your sum, I am 2.679 km from the exchange. Will wait for Alchemist's friend to confirm this.
 
I know the Telkom techies carry these handheld devices that can give the distance to the fault in the cable. I'm sure those things can also tell you the distance to the box.

The 5km info from Axxess sounds dubious to me. I thought you need to be within 2km to get 4mbps.
 
HavocXphere said:
The 5km info from Axxess sounds dubious to me. I thought you need to be within 2km to get 4mbps.
Click to expand...

I think what I said may have been a bit ambiguous. When speaking to the Axxess guy, it wasn't in connection with the 4mbps service. It was just a general support phonecall.
 
HavocXphere said:
I know the Telkom techies carry these handheld devices that can give the distance to the fault in the cable. I'm sure those things can also tell you the distance to the box.

The 5km info from Axxess sounds dubious to me. I thought you need to be within 2km to get 4mbps.
Click to expand...
Depends on line quality - I'm 6+ km away and got 4mb/s for the longest time until my line started degrading recently. :(
 
how i see my downstream DB on a Mega 200vwr
i know im about 100m from an exchange (its across the road)
 
Enter your Downstream attenuation (dB) =7
Cable Loss (dB/km) – =13.81
Attainable Rate (ADSL1) – kbit/s =8000
Attainable Rate (ADSL2) – kbit/s =23984
Distance to exchange (Meters) =507


Downstream
SNR Margin =37.0 dB
Line Attenuation =7.0 dB
CRC Errors =0
Latency =Fast

Upstream
SNR Margin =22 dB
Line Attenuation =4.5 dB
CRC Errors =0
Latency =Fast

is that a good connection because i get 39kbs max download speed on a 386 line
 
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Noah said:
is that a good connection because i get 39kbs max download speed on a 386 line
Click to expand...

For a 384 kbps ADSL connection, the theoretical throughput should be:
( 384 kbps - TCP frame overhead ) / 8 bits/Byte
If you assume 85% efficiency (crude estimate) then the peak theoretical throughput is 40.8 KB/s.

http://pflog.net/dsl_overhead
 
While running in the wild forest of technical talk i assume my connection is good right:)
 
Just spoke to a telkom techie and he said that my actual distance from the exchange is 2.37km. So the 2.67km value I got from Yotch's advice was relatively accurate.

The techie also said that one should be within a 3.5km radius of the exchange. Bwana, you're far out!
 
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