For ex.
I need to decrease power consumption at the tower (winter will come, and I have solar panels there),
Is there a good solution to connect 2 dual sector antenna to a single nv2 a/n/ac card?
I have bad experience with splitters or omni antennas
I don't know if some antenna manufacturer made 2x dual sectors in different angles?
in the last releases(year 2015) changelog, i can't find "nv2":(
I am preparing a tower too for the new winter to come. Same tower is being equipped with more and more powerful antenna's and we are replacing rb750's into new Netonix Gigabit PoE switch. But my power consumption this way will almost double!
So, more batteries and most probably an extra panel too.....
Omni's are only still useful in remote locations with little subscribers and little spectrum usage. Or I use them for monitoring the spectrum around a tower (Mikrotik ac still cannot do a spectrum scan)
Splitters split signal in half and have self attenuation too. So if you have one radio giving 9db, put it on a splitter and you get 9-3 (=half) - 0,5 (typical attenuation of splitter) - 0,5-0,8dB (the extra connectors) 5dB available on each end of the cable to connect to an antenna. That almost 70% signal loss at the antenna!
So, unless you make use of very powerful radio's or boosters splitting or spreading the radio output to get more done with less is not going to work. Nowadays is the song is 'more', not 'less'.
What you can do is switching some radio off that is of no need during the hours of low sun or darkness. For instance; If you have a tower with 2 ,3 or 4 sectors that is heavy used during the day. Fit one extra unit with one duo polarized omni antenna. Now by script you can switch AP's down during the night time and switch the omni on. This way you can at least save some power consumption during the deep night hours....
Or by script have the radios work on less power during quit hours.
New ROS for 'ac' radio also should have software embedded that can switch power down from radios during times of little activity.
But in reality the only best solution is more batteries and maybe more panels.
(I am planning to double the amount of batteries in the winter where these sets in the summer are just being stored and maintained.)
But off course it all depends on your budget, climate, accessibility and skills....