Mikrotik GPS Sync just like Airfiber

Airfiber gps sync is awesome. I am able to use the exact same channel with the antennas 1 ft apart and still pull full bandwidth.

They way UBNT gps sync works is they use gps to sync the 2 airfibers and offset the wave length a little bit so they cant see each other.

Mikrotik are you able to do GPS sync yet?

Here is their M5 version for 5ghz syncing. All aps send at same time and receive at same time so no interference on same channel.

http://www.youtube.com/watch?v=_CqbO8sjwOg

Here is their M5 version for 5ghz syncing. All aps send at same time and receive at same time so no interference on same channel.

http://www.youtube.com/watch?v=_CqbO8sjwOg

Information about gps sync

http://groups.csail.mit.edu/tds/papers/Fan/opodis04.pdf

Hi Dallas,

+1 for synchronisation of Miroktik APs.
We need that very urgent to have lower self interference and in case you have licensed bands with limited channels, it is a must. (let say 3,5GHZ or 3650mhz)
it shoud not be that hard to implement.

In 24 GHz using Parabolic you can omit sync if you have at least 30 Degree between. In 38 we alway get the same frequency from our regulator on the same tower. So this is not a real sign for working GPS. It is the narrow beamwidth which make it work.

Sync for multipoint is most important. Yeah I have used parabolics but that’s for back hauls. I am fine there. We have about 200mbps top going over our back hauls so parabolics are a must. Back to GPS sync, we need it.

Microtik could use have a master ap that sends out sync beacons and the apps that can see that ap would sync with that signal. That way all those aps would be on same channel. We could group 10 towns with one channel. Then have another master sync for another group of 10 towns. Microtik may be able to do this with there existing wireless chip sets. Also all aps would transmit at same time and receive at same time. Clients would sync to ap of course that’s it. Nv3 is what they should call it.

Sync for multipoint is most important. Yeah I have used parabolics but that’s for back hauls. I am fine there. We have about 200mbps top going over our back hauls so parabolics are a must. Back to GPS sync, we need it.

Microtik could use have a master ap that sends out sync beacons and the apps that can see that ap would sync with that signal. That way all those aps would be on same channel. We could group 10 towns with one channel. Then have another master sync for another group of 10 towns. Microtik may be able to do this with there existing wireless chip sets. Also all aps would transmit at same time and receive at same time. Clients would sync to ap of course that’s it. Nv3 is what they should call it.

Sync for multipoint is most important. Yeah I have used parabolics but that’s for back hauls. I am fine there. We have about 200mbps top going over our back hauls so parabolics are a must. Back to GPS sync, we need it.

Microtik could use have a master ap that sends out sync beacons and the apps that can see that ap would sync with that signal. That way all those aps would be on same channel. We could group 10 towns with one channel. Then have another master sync for another group of 10 towns. Microtik may be able to do this with there existing wireless chip sets. Also all aps would transmit at same time and receive at same time. Clients would sync to ap of course that’s it. Nv3 is what they should call it.

You’re dreaming. Even systems with gps we are using are not specified for channel reuse. Gps sync does not take away the work to place antennas in a way to have clean spectrum. Sync reduce problems but do not solve them.
Of course I want MT to offer sync but I dont expect too much.

Your not too otomistic. Ubiquiti has already done it for multipoint. I know mikrotik can do it. Just waiting for them to do it.

You tested UBNT and compared with and without sync?

At least the 3,65GHz Version is told to not work.

only 5ghz and airfiber airsync works

What is the gain using the 5GHz Sync? Are you able to reuse the same frequency on the same tower?

My network is MT 100% based and I want continue to use MT in the future, GPS SYNK is a must if we want to do this job with MT hardware :smiley:

Giuseppe

+1

If using same band for sectors + Ptp’s then to get the best from GPS sync everything thing on a mast should be in sync (PTP’s + PTMP sectors) and that would reduce overall throughput.

Yes, also same with airfiber. Works very well. No loss of bandwidth either. Amazing!

+1 for GPS sync

-1 for GPS sync

no sharing same channel is rules.

GPS Sync would reduce overall throughput?
If I understand correctly for example;
Sector A has 10 clients,
Sector B has 60 clients,
Sector C has 20 clients,
Sector D has 30 clients,
Sector A has after having received responses from its 10 Clients has then to wait, so has Sector C & D to wait until Sector B has received responses from its 60 clients, before all the Sectors can respond in sync?
All the AP’s will have the performance of the sector with the highest number of registered clients?
Throughput takes a nosedive when syncing AP’s + Ptp’s links
By the way I don’t need Sync as I use AP’s + PtP with good RF screening and carefully select frequencies.