Wireless Access

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Contributor I

AP-ANT-38: Cross or Co Polarization & Gain

Should the AP-ANT-38 with the IAP-224 be setup for cross or co-polarization? I can't find anything in the documentation.

 

 Additionally, what should the antenna gain be set to?

Re: AP-ANT-38: Cross or Co Polarization & Gain

Gain should be set to 7.5dBi. The antenna has 3 elements integrated in to the unit itself, and is already polarized (+45 / V / -45)

Jerrod Howard
Sr. Technical Marketing Engineer
Contributor I

Re: AP-ANT-38: Cross or Co Polarization & Gain

Thanks! A couple of questions still.

I'm on firmware 6.5.3.1. I've set the gain with the CLI but it only shows in the CLI, not the GUI. When setting in the GUI, it continues to show as zero:

2017-07-05 15_58_21-172.17.30.14 - PuTTY.png

2017-07-05 16_23_59-Instant.png

 

I have tried in multiple browsers.

 

What I was trying to ask with the polarization questions is what to select here:

2017-07-05 16_25_11-Instant.png

 

 

Thanks!

Re: AP-ANT-38: Cross or Co Polarization & Gain

Ah, that's new, chose cross polarization. Not sure about the zero for gain, but the CLI is likley more reputable. I will see if anyone on my team has a 6.5.3.1 IAP with external connectors and if they see the same behavior.

Jerrod Howard
Sr. Technical Marketing Engineer
Frequent Contributor I

Re: AP-ANT-38: Cross or Co Polarization & Gain

Is AP-ANT-35A also cross polarization ?

Cant find anything in the documentation :(

Also my webgui shows 0 all the time regardsless of reboot or not. And my cli shows the value I input, in this case 5.0

/Daniel
ACMP | ACCP | HP ATP - FlexNetwork Solutions
Frequent Contributor I

Re: AP-ANT-38: Cross or Co Polarization & Gain

Any way to get an official answer on this ? Wich antennas to choose cross for and wich to choose co for ? Very confusing to introduce a new option in the GUI and not in any documentation on the antennas.

/Daniel
ACMP | ACCP | HP ATP - FlexNetwork Solutions
Aruba

Re: AP-ANT-38: Cross or Co Polarization & Gain

All Aruba panel antennas are cross-polarized. All others are co.

/Onno
Frequent Contributor I

Re: AP-ANT-38: Cross or Co Polarization & Gain

Cool thanks.

 

Maybe aruba should clarify this more in documentation, I asked around and nobody seems to know 100%.

/Daniel
ACMP | ACCP | HP ATP - FlexNetwork Solutions
Aruba

Re: AP-ANT-38: Cross or Co Polarization & Gain

Datasheet is indeed not very clear, but states:

Polarization: V, and slant +/- 45 degrees.

/Onno
Contributor I

Re: AP-ANT-38: Cross or Co Polarization & Gain


Datasheet is indeed not very clear, but states:

Polarization: V, and slant +/- 45 degrees.


 

How does this indicate cross- or co-polarization?

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