[aso]

Hi
I have two question i hope some one can help me .
1- how can 4way diversity be configure on cell despite the vendor.Do it need two antenna?
2- what is benefit of having two antenna one of them is TX and the next one is Rx/Rx.

[Pix]

1/ 4 way diversity (in reception, i assume), you need four “dipoles” (or rather, four series of dipoles). This can be achieved by using either:
2 crosspolar antennas separated by few meters.
4 vertical polar antennas separated by 1 or 2 meters from each other each.

2/ this kind of configuration is very old. The benefit is only that the Tx is done on a vertical polar antenna, while the Rx/Rxdiv have a polarization diversity.
But it’s useless, because if you’re ready to have two antennas on the roof, you might as well have 2 vertical polar antennas, one for Tx/Rx, the other for RxDiv.

If you don’t mind me asking, where have you found this antenna configuration ?

[4 way diversity]

let say in one of african country and ericsson equipment

[Pix]

OK… well, that’s a weird configuration.

[emreigrek]

i have a presentation prepared by a my friend 4 way diversity on rbs 2206. if u want i can help you

[aso]

Dear emreigrek
Can you please send me to my mail
aso0072000@yahoo.com
Thanks alot

[Author]

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