NightOwl326
Senior Member
3 antenna routers are advised to tilt outside antennas at a 45 degree angle. Any thoughts what is best when there is 4 antenna?
3 antenna routers are advised to tilt outside antennas at a 45 degree angle. Any thoughts what is best when there is 4 antenna?
I don't know if the FCC's report is showing the antennas perfectly, it said antenna 1,2,3 are for both bands and 4 is for only 5 GHz(not sure if it's left to right).
Maybe somehow like what was posted above.
Where did you see that "advice"?3 antenna routers are advised to tilt outside antennas at a 45 degree angle. Any thoughts what is best when there is 4 antenna?
Where did you see that "advice"?
Given the nature of beamforming and MIMO, all this talk of futzing with omnidirectional antenna position seems kind of silly.
Asus and Netgear both recommend the center antenna straight up and the 2 outer antennas tilt to the "sides" at a 45 degree angle. Like this
\ | /
If covering a single floor, keeping them all straight is the ideal configuration for most people. Only tilt some of them if trying to cover multiple floors.
beamforming takes a bit out of the donut....
One floor;
\ | | / or | | | |
Multy floors
__| | __ or __\ / __
Your results may vary on many variables outside of your control. Thus you will have to test various settings that work in your house the location and oriantantion of the router also plays a role.
Where did you see that "advice"?
Given the nature of beamforming and MIMO, all this talk of futzing with omnidirectional antenna position seems kind of silly.
I am using a RTAC87R as router (4 pole) and RTAC68R (3 Pole) as AP. Should the antennas be parallel or at 90 deg to each other.
Thanks
JDB
You do realize that the antennas are not connected to anything.
Just like the close door button on an elevator. lol....
The external antennas on wireless router are in general dipole antennas..
They are typically stacked collinear arrays. I'm not sure where anybody gets off calling these "dipoles", because dipoles are center-fed, and these are end-fed.
I let my ham license lapse a long time ago, but I do remember some of it...
I think members may find this article interesting. It's a do-it-yourself that clearly shows how these are constructed. This is, indeed similar to the construction of the popular third-party long-butt 12db antennas that I disassembled.
http://www.nodomainname.co.uk/Omnicolinear/2-4collinear.htm
If there is no gain, then it is a simple "1/4 wave whip". According to Professor Wikipedia, it "can be considered half of a dipole antenna".
I could dig out my ancient Radio Handbook or ARRL Antenna Book, but I am lazy and rely on Professor Wikipedia.
The collinear antenna was historically used by base station sites, stacking various 1/2 wave dipole elements on top of each other for increased gain connected by some equipment to correct for phase error between the elements of the array.
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