This is a funciton of the physics of the link, not the actual equipment. At the unlicensed 24 GHz, you are limited by things like Tx Power allowed in your region, rain fade, fog, sandstorms, etc. You need to have proper backup links in place for these events. However, the capacity in combination with the cleaner spectrum make it very desirable for <5 mi links with absolute clear LOS.
I have one 24 GHz link in deployment (~2.1 mi) and it hasn’t dropped yet, and it moves around 655 Mb/s of data full duplex with ~2ms latency at full load. Our other 24 GHz link is ~4.5 mi and we are still testing it so I can’t comment on longer distances.
10 GHz and 17 GHz would be better for range, but most of the time anything that you need long distance, high gauranteed capacity and low latency requires the use of licensed equipment so you can get past low allowed Tx Power, and EIRP limits.
For example the AirFiber you were reading about has a TX power of 0, a Tx Antenna gain of 33 dB, and and a Rx Antenna gain of 39 dB.
I personally really like the RouterOS platform, but Mikrotik needs to make sure they don’t jump onto the wrong bandwagon. Stay in the market you understand, can compete in, and make money in. There are already tons of names building reliable PtP links at the frequencies mentioned, not sure if Mikrotik would be able to compete and still make money.
Cheers
Hello all,
we have integrated up/down converter 17GHz TDD device based on 2GHz MIMO radio with RB435G routerboard.
We have presented our device at the last MUM in Croatia: http://mum.mikrotik.com/presentations/HR13/andrea.pdf
and we have plans to release same device on 24 and 26GHz band.
Now we are deploying in Italy and other countries with incredible results.
Look at the attached test screenshot.
We got full 300/300Mbit radio at 17km distance, equal to 100Mbps fd band.
0 packet lost
4ms average ping .
The advantage vs the FDD device are:
-better modulation with the MCS scaling down to the 6Mbps of the 802.11g protocol
-more channels on the 200Mhz available bandwidth,
-custom channel to adjust the bandwidth to your request
-RouterOs
disadvantage:
-of course we use only 1 channel, in TDD
-latency higher than FDD
We will test it with RB911 to see how works the new processor with big MTU .
other test will be published later.
regards
Andrea
http://www.wi4net.it
test-Wi4Link–km.pdf (647 KB)
Hi, I m looking for this solution for using other bands, do we have to buy some special hardware and, also, which license level we have to acquire? We have a link with netmetal5, can we use this license with this equipment?
But many telco use 21GHz and 23GHz for data transmission. personally i work for a telco and currently our all sdh and pdh links runs at 23GHz. to heavy rain obviously ruin links but we use ring protections or 1+1 protections in our critical links.