Wireless Outdoor
Wireless device high dB but low download speed?
Our ISP has installed a NON LINE OF SIGHT wireless outdoor device which shows signal strength of 40 dB. When we download from the internet we get less than 128kbps.
In other locations same device where the signal strength is 20+-dB download speed is over 4Mbps.
Every one is very confused because 40dB should easily give us over 10Mbps download speed.
check updated question http://answers.yahoo.com/question/index?qid=20100813014133AAMJbsW
urm i think you got the whole thing mix up. thats why you are confuse.
db is signal strength and NOT speed. higher DB only meant higher penetration+distance, and not higher speed. theres no equality relationship between the two. dont get cheated by your ISP.
In order for your ISP to acheive NON Line of Sight , they have to use a more powerful transmitter to increase the signal strength to penetrate barriers such as buildings,trees etc, so they use 40db instead.
you can have a 2dbsignal strength with a 10Mbps speed wireless as well. Standard home wireless uses 2db antenna as transmitter. 5db antennas are available if you require a better penetration between rooms or floors and covers more distance. you heard people subscribe to 25mb broadband and use their standard home wireless 2db antennas also right?
you better check with your ISP what is your upload speed and download speed they are giving you instead. Broadbands are asymetric meaning down speed is higher then upload speed. you can do a test now www.speedtest.net . its a rough guide how much speed your have now.
now i address your download of less then 128kbps. even if you have 100mb T1 lease line internet access, the site you are downloading from is definately not going to give you a full 100mb connection. web admins always will limit bandwidth for each download else if everyone downloading at 100mb, his website will be unaccessable caz it will be congested. secondly , you also have to factor in internet delays between you and your destination.
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