Anyone using this? We recently replaced our old karlnet AP's with Mikrotik, and was wondering what exactly the pros of using this setting were? We also use trango and it has a similar setting but never really tested if it makes a difference.
I did read somewhere that it helps the ap determine the proper modulation and speed that it negotiates. Is this true?
Any help shedding light on the subject would be greatly appreciated.
TIA.
D~
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wildbill442
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It allows you to set the noise floor for your network, so users wont associate with a signal under say -95dBm, if 95 is what you put in the noise-floor-threshold.
If you have a long link with poor signal it will constantly connect and disconnect having to renegotiate its connection speed using up on air time.
That's my understanding of it.
If you have a long link with poor signal it will constantly connect and disconnect having to renegotiate its connection speed using up on air time.
That's my understanding of it.
I guess I should explain a little more about why I am asking. We have a point to point link using the atheros ar5212 cards. Signal for the link is -73/-78. According to the receive sensetivity of the atheros card we are using, it should be linked up at 48Mbps on each side. We have the supported-data-rates set up to 36Mbps on each side, but we are seeing in the registration table 36Mbps/9Mbps.
It should be 36Mbps/36Mbps no? I was wondering if setting the noise-floor-threshold setting would some how effect/change the data rates that the two radios link up at?
D~
It should be 36Mbps/36Mbps no? I was wondering if setting the noise-floor-threshold setting would some how effect/change the data rates that the two radios link up at?
D~
can anyone address this issue..
How can you tell your true SNR if you can't tell your noise level? If the area is surround with Trango and canopy, your mikrotik wont show any of their signal in the scan. so if you have a great signal strenght of -55, but the noise is -60, then you have a horrible connection.
????
How can you tell your true SNR if you can't tell your noise level? If the area is surround with Trango and canopy, your mikrotik wont show any of their signal in the scan. so if you have a great signal strenght of -55, but the noise is -60, then you have a horrible connection.
????
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stephenpatrick
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wildbill442
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Noise floor threshold is the same as RSL (Receive Signal Level).
If this feature really works, it is great to improve the data rate.
according the link budget equation, the lowest the RSL or noise floor the better the signal link. However, since it becomes too sensitive, the ap will pick up more noise. To get around it, you have to do some filtering, and using diversity gain.
I put one mikrotik AP with multiple radio in Laguna Seca raceway, It covers almost the entire circuit and the offices.
If this feature really works, it is great to improve the data rate.
according the link budget equation, the lowest the RSL or noise floor the better the signal link. However, since it becomes too sensitive, the ap will pick up more noise. To get around it, you have to do some filtering, and using diversity gain.
I put one mikrotik AP with multiple radio in Laguna Seca raceway, It covers almost the entire circuit and the offices.
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wildbill442
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This is the pictureI'll have to check that out when I'm there for MotoGP!I put one mikrotik AP with multiple radio in Laguna Seca raceway, It covers almost the entire circuit and the offices.
http://photos.airnetjustwireless.net/di ... um=3&pos=0
For MotoGP, we might install more since there would be more people outthere. To access the internet, you will need username and password.