Hi all.
In a 5GHz point-to-point, using good parabolic antennas, good cables, well builded radios (411AH+R52Hn) and placing correctly antennas, what are the parameters to try to tune?
I use this:
find a free frequency
set regulatory domain
play with antenna gain to calibrate output power
set data rate default with advanced rate selection
set hw retries = 7
set preamble mde = short
Leave the rest as default.
Are there other parameters (also not visibile from winbox) to try to tune to obtain a good link ?
Site location is very important and proximity to other Wireless antenna’s + what distance is the link is Freznel zone clearance between point A to point B OK,which polarity are you using H or V, use very short cables to the Antenna’s, and is the antenna’s dish or mesh grid, set the antenna gain in winbox to 0db
I usually use bridge ↔ station-bridge and don’t allow for data rates that require QAM64. Also I only use long guard interval.
I noticed QAM64 and the short Guard-Interval to be too risky to use (packet drops might occur, latency isn’t stable!)
This means only the following data-rates should be enabled in custom-mode:
5Ghz-A:
6, 9 ,12, 18, 24, 36 Mbps
MCS 5-GHz-N:
0, 1, 2, 3, 4
8, 9, 10, 11, 12
I don’t need the full sync of 270/300 Mbps.
IMO 162 Mbps on 802.11n with 2x2 Mimo is enough. This allows for 100Mbps half-duplex!
Everything that needs more throughput should be realised with licensed PtP-Links, or optical fibers.