Huge Interference On The 2.5-2.6ghz rip-wave spectrum - SCREAMER Problem

[Saidar]

I'm using Screamer in Potchefstroom, and they are using the 2.5-2.6ghz Navini modems at the moment. The problem is the internet is almost unusable during the day, something here in Potchefstroom is causing huge interference on their spectrum.

I can show you graphically how the interference looks (using a simple bandwidth meter):

http://i50.tinypic.com/25snbdx.jpg

The one pic is during the day, the other one is 4:00 in the morning. As you can see in the morning in is a LOT better compared to the day. The day pic almost looks like a sine-wave, keeps oscillating between certain two points.

Any interference that I know of is the 2.4ghz spectrum. One of the wireless companies on Potch use all of their equipment on the 2.4ghz spectrum. Any idea if that might cause such a problem? If not what else can it be?

Thanks!

 

[cda]

How does that show interference? You need access to the CPE to show the encoding and noise floor to even speculate that...

It's more a case of their IP network getting raped during the day...

 

[Saidar]

How does that show interference? You need access to the CPE to show the encoding and noise floor to even speculate that...

It's more a case of their IP network getting raped during the day...

It is exactly the same pattern every day, if I download something the speed keeps osciallating between a minimum and a maximum, something like 5kb/s and 30kb/s. THAT IS NOT NORMAL

Another reason why I believe it is interference is because the Screamer people here in Potch says it is.

I know literally nothing about WiMax electronics I'm studying chemical engineering not electronic engineering, so that is why I'm asking for help on this forum.

Would appreciate it if you could explain a bit more, and maybe give me a solution to the problem

 

[SliverZA]

I have to agree with cda. By no means will you be able to tell if there is frequency interferance by looking and bandwidth utilization trends.

You would need to log onto your CPE and look at the items that cda mentioned or use a spectrum analyzer to see how many people are in a similar frequency band. I can't imagine Screamer are using different frequencies in Potch as they are in JHB and I haven't heard anybody complaining about interferance in JHB.

If you are seeing the same trend every day it is most likely a congested wireless network due to too many users or the backhaul which I imagine is back to JHB isn't enough for all the users in Potch.

 

[Saidar]

I have to agree with cda. By no means will you be able to tell if there is frequency interferance by looking and bandwidth utilization trends.

You would need to log onto your CPE and look at the items that cda mentioned or use a spectrum analyzer to see how many people are in a similar frequency band. I can't imagine Screamer are using different frequencies in Potch as they are in JHB and I haven't heard anybody complaining about interferance in JHB.

If you are seeing the same trend every day it is most likely a congested wireless network due to too many users or the backhaul which I imagine is back to JHB isn't enough for all the users in Potch.

Interesting thanks. Interference or not interference the fact is there is a problem. It has been like this for more than a year, I never used them but used them once last year and cancelled, and now I'm forced to use them again.

The Screamer crew here don't seem to have any control over this problem.

How should I approach this problem? Where can I ask them to start seeking for the problem?

 

[LoneWolf84]

Interesting thanks. Interference or not interference the fact is there is a problem. It has been like this for more than a year, I never used them but used them once last year and cancelled, and now I'm forced to use them again.

The Screamer crew here don't seem to have any control over this problem.

How should I approach this problem? Where can I ask them to start seeking for the problem?

Hi Saidar, I have exactly the same problem. I have e-mailed screamer yesterday (15/03/10) concerning the poor connection quality but have not received any reply yet, and I am sorry to say, but the Potch guys do not seem to know whats going on. Could you gather anything new on this matter?

 

[Saidar]

Hi Saidar, I have exactly the same problem. I have e-mailed screamer yesterday (15/03/10) concerning the poor connection quality but have not received any reply yet, and I am sorry to say, but the Potch guys do not seem to know whats going on. Could you gather anything new on this matter?

Yep I actually did, it is not an interference problem (they lied to me), their equipment is fine, the problem lies with screamer. They keep limiting the download speeds for some reason, making the internet unusable. Something about Potchefstroom not having enough users, so they cut us off.

I don't really understand it, but screw them all. I cancelled my contract

 

[howzit]

Hi Saidar

I understand your frustration and the Potch network has been addressed by us in the past week and you should be getting a much better experience.

Yep I actually did, it is not an interference problem (they lied to me), their equipment is fine, the problem lies with screamer. They keep limiting the download speeds for some reason, making the internet unusable. Something about Potchefstroom not having enough users, so they cut us off.

I don't really understand it, but screw them all. I cancelled my contract