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Old 08-04-2005   #1 (permalink)
mawireless
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Signal Strength - Help!
Hi All,

I am using NetStumbler, atesting the signal strength. I have two devices I am testing. One is a 200 mW, and the other is about 50 mW (Senao and Linksys).

When comparing their signal strenths they are about the same (about 75 dB) just a couple of feet from my computer. I place them both about 50 feet away, and again, about the same signal strength (about 50 dB).

Does anyone know why this may be happening? I'd expect that the signal to be higher on the 200 mW Senao!

Thanks,
Mike
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Old 08-04-2005   #2 (permalink)
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Quote:
Originally Posted by mawireless
Hi All,

I am using NetStumbler, atesting the signal strength. I have two devices I am testing. One is a 200 mW, and the other is about 50 mW (Senao and Linksys).

When comparing their signal strenths they are about the same (about 75 dB) just a couple of feet from my computer. I place them both about 50 feet away, and again, about the same signal strength (about 50 dB).

Does anyone know why this may be happening? I'd expect that the signal to be higher on the 200 mW Senao!

Thanks,
Mike
Kangaroo??

You do realize that NS measures the signal strength of the AP of which it's detected, not the Card. Unless you have your cards in Ad-Hoc mode and you're testing from another machine.
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Old 08-04-2005   #3 (permalink)
beakmyn
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AND your card is supported AND properly reports SNR AND you've read the directions AND you know what your doing.
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Old 08-04-2005   #4 (permalink)
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Quote:
Originally Posted by streaker69
Kangaroo??
Albatross?
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Old 08-04-2005   #5 (permalink)
beakmyn
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Quote:
Originally Posted by King_Ice_Flash
Albatross?
Wait for it....
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Old 08-04-2005   #6 (permalink)
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Quote:
Originally Posted by beakmyn
Wait for it....
*Cough* G8!!?!?!?!??!
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Old 08-04-2005   #7 (permalink)
mawireless
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Quote:
Originally Posted by streaker69
Kangaroo??

You do realize that NS measures the signal strength of the AP of which it's detected, not the Card. Unless you have your cards in Ad-Hoc mode and you're testing from another machine.

Using my wireless card on my laptop with NetStumbler installed, I am able to detect several AP's. Of the two I am testing one is high power and the other is not. I am still unsure why the signal strength is similar? I have the two test AP's co-located and on different channels.

Any additional help would be appreciated. Thanks.

Mike
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Old 08-04-2005   #8 (permalink)
wrzwaldo
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Quote:
Originally Posted by mawireless
Using my wireless card on my laptop with NetStumbler installed, I am able to detect several AP's. Of the two I am testing one is high power and the other is not. I am still unsure why the signal strength is similar? I have the two test AP's co-located and on different channels.

Any additional help would be appreciated. Thanks.

Mike

You are testing two APs or two NICs? What are the models?
Last edited by wrzwaldo : 08-04-2005 at 05:14 PM.
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Old 08-04-2005   #9 (permalink)
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And what NIC do you have installed in your notebook which is running NS?
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Old 08-04-2005   #10 (permalink)
mawireless
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Testing two AP's a Senao NL2611CB3PLUSDX(200 mW) and a Linksys BEFW11S4.
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Old 08-04-2005   #11 (permalink)
mawireless
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Laptop with NS has a Senao 200mW PCMCIA card installed.
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Old 08-04-2005   #12 (permalink)
SignalSeeker
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Have you read the README about what cards are supported and in what fashion?

Justin
Last edited by SignalSeeker : 08-04-2005 at 07:37 PM. Reason: Removed helpfulness
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Old 08-04-2005   #13 (permalink)
wrzwaldo
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Quote:
Originally Posted by mawireless
Hi All,

I am using NetStumbler, atesting the signal strength. I have two devices I am testing. One is a 200 mW, and the other is about 50 mW (Senao and Linksys).

When comparing their signal strenths they are about the same (about 75 dB) just a couple of feet from my computer. I place them both about 50 feet away, and again, about the same signal strength (about 50 dB).

Does anyone know why this may be happening? I'd expect that the signal to be higher on the 200 mW Senao!

Thanks,
Mike

Have you tried it with them powered up one at a time? I get some funky results when I look at signal stregths and SNR with all of mine (4) powered up at once (and they are all on different channels). What channels are your APs on? You may also want to try them on the same channel if you try them one at a time as the things are usually optimally tuned for the middle of the band (channel 6). Not sure if it will make that big of difference but hey it won't cost anything to try it.
Last edited by wrzwaldo : 08-04-2005 at 09:23 PM.
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Old 01-11-2006   #14 (permalink)
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mawireless

You do realise that you are wasting your time trying to use NS to compare Signal Strength on different devices?

You see if your card is not fully supported then really no one can help you with anything that NS is telling you. I suggest you forget about using NS to help you with your problem.

Believe me, this really is being helpful.

Try the Whirpool Broadband Forums instead if you are looking for another kind of help.

Cheers

Bullman
Last edited by Bullman : 01-11-2006 at 05:14 AM.
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Old 01-11-2006   #15 (permalink)
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Quote:
Originally Posted by Bullman
mawireless

You do realise that you are wasting your time trying to use NS to compare Signal Strength on different devices?

You see if your card is not fully supported then really no one can help you with anything that NS is telling you. I suggest you forget about using NS to help you with your problem.

Believe me, this really is being helpful.

Try the Whirpool Broadband Forums instead if you are looking for another kind of help.

Cheers

Bullman
So apparently you have your panties in a knot because you have unsupported hardware and feel that it's somehow NS's fault that it won't report accurate measurements with said hardware?
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