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Signal to noise ratio
Does anyone know what the signal to noise ratio should be in a wireless network? I have a lot of troubles with slow speed and frquent loss of signal and have discovered that my signal strength is around -65dBm (I think thats the term) and my noise strength is about the same and sometimes even higher. Is this normal?
It depends on the wireless card specifications but you usually want to allow at least 15-20dB SNR for a good connection. In other words, if you have a received signal of about -65dBm, then to get a fast and reliable connection your noise level should ideally be -85dBm or less.
Remember we are talking in negatives here, so -90dBm noise is better than -85dBm. An signal of -65dBm is better (stronger) than -70dBm.
Marlborough WiFi Project
Last edited by NZLamb; 06-23-2006 at 09:50 AM..
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