Hello guys,
I had an argue with my network teacher about the maximum speed that can be transmitted on wireless and he told me (and the entire class) that it is 54mbits one way.
So my Question is not “Can it reach more than 54mbits?” but what is the MAX speed you have heard or seen.
Let’s say that money don’t matter and u have all the equipment needed.
I am just so curious about it 
Waiting for your suggestions and stories (hope that are true )
Best Regards,
Ventsi.
It’s true - 54Mbits air rate (which means data will not be sent so fast, there still needs to be space for management data). But then there are special technologies, like Turbo wide channel, Nstreme etc.
Unlimited. It all depends on the distance, equipment, and funding.
There are also laser links, wimax, they can reach 100Mb/s.
ovkiller didn’t mention the technology or the frequency or the bandwidth, he just want to know the limit, the answer is no limitation is here !
It depends on the bandwidth directly which is directly proportional and almost linearly proportional means the bigger the bandwidth the higher throughput .
Take a look at this superior product : http://www.winncom.com/pdf/DS_60GHz.pdf
Works on 60Ghz Costs 40,000$ for each CPE = 80,000$ for a PTP link. but the surprises are :
Comparing these numbers with the bandwidth in normal 11a/g mode which is 20MHz 
a big deference .
Also i know in physics the bigger the frequency the higher the throughput also. and that is according to any type of transmission not only the wireless, in optical fibers too.
It’s true - 54Mbits air rate (which means data will not be sent so fast, there still needs to be space for management data). But then there are special technologies, like Turbo wide channel, Nstreme etc
normis what did u ment by air rate ? is it a physics limitation to the air transmission ?
air rate - if your card supports 54Mbits, it doesn’t mean your FTP download will be 54mbits, because there is still need for management data communication between the radios. this communication is needed to keep the connection, the radios exchange vital technical information. the rest of the speed is then available for your data. usually 80-90%
as for the rest of the posters - it’s how you define “wireless”. anything that doesn’t use a wire? or we are talking 802.11abg?
Hm…thanks for the replys guys.
i suspected that the limit is how much money u have
40 out of 54mbps on 11Km wireless link and 60 out of 108mbps on the same link on turbo mode @ 5.5GHz
and the budget was below 500$ for both stations
but you forgot to mention the biggest surprise : 1.5 Mile MAX !!!
so , its 80,000$ for only 1.5Mile !!!
Actually the Bridgewave gear costs $20K to $40K for a link, not per radio. They also have 80GHz licensed gear that can go up to 4 miles. We will be deploying some in 2009.
Getting back on Mikrotik topic, I just deployed my first 3.65GHz PtP link using RB411AH and am seeing 20.5Mbps tcp in both directions with MT speed test. CPU is 10 to 15%. That is using 54Mbps radios (20MHz channel). So we are seeing about 76% efficiency when converting from 54Mbps Air rate to 41Mbps data rate (20.5 in both directions).
Tom
Even if its 5 miles it is not a big thing, maybe an optical fiber could be cheaper in lower distances.
If there is a real bonding protocol that can be added to mikrotik to aggregate the bandwidth from multiple connections “not like the normal load balancing” to increase the bandwidth to max for each connection it should be a smart way to go, and also with reusing the same frequencies “a little interference should appear” but the total throughput against bandwidth consumed should be lower than using a full bandwidth spectrum and of course lower license costs.
I don’t want to get off topic, but what kind of distance for this link and what are your signals? I’m assuming you are using an XR3.