recently after my direct-link (p2p with 2 x sxt) went dead because of trees getting folliage (it dropped from 25mbit, to 1mbit) , i contacted a local company which owns the tallest building in town, and mounted on the roof an omnitik. i have clear LOS, 1 sxt is 150m from omnitik, the 2nd sxt is cca 500m from it.
sxt1 signal is tx/rx -49/-49db, CCQ 87/93% , phy rate 300/240mbit.
sxt2 signal is -65/-69db, CCQ 80/70%, phy rate 180/120mbit.
i’m using 40mhz channel, on a more-or-less clear freq of 5580mhz (but i tried on 5450mhz , 5400-5500 is almost clear here, but the speeds were even worse).
when testing speed sxt 1 - omnitik , or omnitik- sxt2 , i’m getting 70-100mbit tcp speed. when i test sxt1 - sxt2, i’m getting 17-20mbit MAX.
i’m using NV2 protocol, but it’s the same or similar with normal 802.11. there is no noise, omnitik say -115db or less.
i can’t experiment too much because i fear of loosing connectivity, omnitik is just an AP for itself, there is no lan connection to it so if something happens i won’t be able to connect.
my question is - why is the speed so low? ros version is 6.33.3 .
a few months ago i installed another omnitik on a different location, also with 2 x sxt as clients, and tcp speed was 90-100mbit on 1.5km, in a crowded area with over 100 networks in 5ghz.
here a 5ghz scan showed 35 networks (i scanned on omnitik during mounting). but it’s not related to noise or networks, as in 5.4ghz band there are no networks, and i had the same problem.
nv2 period is 10ms, but it was similar if kept on AUTO. if i lower the channel to 20mhz, i’m getting max 10mbit. that’s unusable.
please advise.
