AP 3502i antenna orientation

Hi!
I have 2 LAP 3502i and 1 LAP1131AG. i had added them to wcs, assigned to maps and need to set up antenna orientation.
and i cant understand how to do it. all access points are mounted on the walls.
when i look on them in the wcs map, little arrows on AP's showing down.
can you help me and tell what orientation should i choose from the Position AP drop-down menu?
what elevation in degrees should i choose?
AP's mounted in this way

Those APs are normally made for ceiling placement fyi.
The default antenna elevation is as if the AP was placed on the ceiling (AP then radiates below itself). Change the elevation accordingly.
Orientation has no point with omnidirectional antennas.

Similar Messages

Prime/MSE Antenna Orientation

I'm running Prime 1.2 with a 5508 controller running 7.3.101. I apologize if this comes off as a stupid question but I'm having a hard time wrapping my head around it.
I have a floor map configured with APs (3x 3602i's) placed accordingly, my question is regarding the antenna orientation:
My understanding is the Azimuth configuration is 180 degrees off from the direction the light on the face is pointing, is this correct? (i.e. if the AP is mounted on the ceiling and the light on the face of the AP is pointing towards the top of the map, the Azimuth should be configured as 90 degrees)
The 'elevation' indicates whether the AP is mounted on the ceiling, which will be 0 degrees, or if it's mounted on the wall, in which case it would be 90 degrees? If so, is this "up/down" selection box just indicating whether the AP is facing up or down? Or is it indicating how many degrees up or how many degrees down the antenna is positioned?
Thanks in advance.
Mitch

If your AP/Antenna is an omni and its mounted on the ceiling you don't have to set the antenna orientation. If it's united on the wall then you set it at 90 degrees.
http://www.cisco.com/en/US/docs/wireless/ncs/1.0/configuration/guide/maps.html#wp1289129
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How to place WIFI antennas in WCS?

In my WLAN enviornment there are multiple heavy, block walls. In some locations the AP may be stored securely in a closet while the antennas are routed through the ceiling and down into a room with concrete block walls. What I'm wondering is, how can I place the AP's antennas in a different location than the AP on a map in WCS?
Also in some locations I'm using a Yagi directional antenna, how can WCS take this into account?
Thanks for your help! -Mark

You can press on the ap on the map then chnge antenna orientation on the left panel.
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Antenna type in WCS / WLC

Hello, I am still somewhat new to the wireless side and I saw something today while trying to troubleshoot a wireless issue we were having that I have not heard or read about from my CCNA Wireless studies. I noticed that the antenna types our WCS is showing attached to my APs are wrong.
My question is, do the APs / WCS / WLC know what type of antenna is connected to the APs automatically or is this a manual process that someone should assign them? The second question is, if it is a manual process (which I suspect it will be) can I change it without disrupting current connections or should I wait until a maintenance window to do this?
We have 3502e AP with AIR-ANT-1728 and AIR-ANT-5150V-R antennas attached to them, but my WCS says they have the rubber duckies on them. Any insight would be greatly appreciated.
Thank you in advance for any help you can provide!

There is no way the WLC even knows what antennas you have. If your using antennas besides the rubber ducks then you need to define that on WCS. If you have Cisco antennas, there is a drop list of the antennas. You also have to make sure of the antenna orientation. This is all defined in the WCS user guide.
Note
If you have a ceiling-mounted AP with an integrated omni-directional antenna, the antenna orientation does not really need to be set in WCS. However, if you mount that same AP on the wall, you must set the antenna orientation to 90 degrees.
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AP mounting options versus internal antennas

Hi All,
I have previously used the 1232s and 1242s with external antennas so I could wall mount them (ceiling mounted hardware is not always an option) and have the antennas oriented correctly. I'm now looking at the newer APs with 802.11n some of which have internal antennas and are more cost effective, e.g. the 1040. The 1040 has internal antennas but it is apparently wall mountable - from http://www.cisco.com/en/US/docs/wireless/access_point/1260/quick/guide/ap1260getstart.html#wp42683
"Cisco Aironet 3500, 1260, 1140, 1130, and 1040 series access points can be mounted in several configurations, including on a suspended ceiling, on a hard ceiling or wall, on an elecrtical or network box, and above a suspended ceiling. Click this URL to browse to complete access point mounting instructions: http://www.cisco.com/en/US/docs/wireless/access_point/mounting/guide/apmount.html "
How does wall mounting an AP with internal antennas affect the coverage? Surely the antennas will be oriented the wrong way to provide the correct coverage pattern. Or are the antennas able to provide the same coverage no matter what way up they are?
Many Thanks,
Scott

Hey Scott,
The 1040, like the 1140 can be mounted on the wall. The horizontal and vertical footprint is almost similar. Like a ball. So it won't make any severe difference at all.

1140 AP's internal antenna radiation pattern

Is it right or not?
1. Cisco Aironet 1040, 1140, 3500i Series Integrated Antennas Diagrams show Azimuth Plane Radiation Patterns and Elevation Plane Radiation Patterns when AP is mounted vertically on the wall (red LED above Cisco logo). So "Zero" on Azimuth Plane points to direction rectangular to AP's case plane (mounting wall plane), "Zero" on Elevation Plane points to ceiling and "180 degrees" points to floor?
2. Radio waves polarization in this case would be linear, in direction from ceiling to floor?
3. If AP would be mounted horizontally on the ceiling, then polarization would be in direction parallel to floor axis X and rectangular to floor axis Y? So induced signal on notebook integrated antenna, oriented rectangular to floor axis X, would be near zero?
See "Cisco Aironet Antennas and Accessories Reference Guide." Page 69.
http://www.cisco.com/en/US/prod/collateral/wireless/ps7183/ps469/product_data_sheet09186a008008883b.html

Hi Valentine,
Here is Cisco Antenna Pattern Guide:
http://www.cisco.com/en/US/prod/collateral/wireless/ps7183/ps469/prod_white_paper0900aecd806a1a3e.html
I had same problem on that, because the antenna pattern of 1130, 1140 and guides are not so clear.
From the guide you can see plate antenna forward direction which means Cisco logo direction ( if you place on wall it pointing horizintol, looking front) is Y, vertical Z, horizintol X(Left and right side), then if you see the 1130, 1140 antenna pattern. Azimuth is almost 360degrees which means doesn't matter Y and X (Ф), the problem Y and Z(Ө) , from the guide there mentioned most of the antenna Y(direction front) is 0degree, and some of them 90degree showed. So now if you trying to understand 1140 antenna Ө pattern, it would be no wave directing to front, you can see from 20-30degree till 90degree to tilting down side, and up side is like this, and pattern is 180degree waving to back side of antenna , which sounds crazy, so it is making complicated.
I have 1130, if you see 1130, from that point front radio pattern of that antenna tilting down side around 45degree(from 15-60) and also 180degree to backside .
I am confused and maybe what i think is true because on 1130 Elevation beamwidth is 50degree so it would be almost.
But other hand if Y front side is directing 270degree on the antenna pattern elveation there is no need worry we all, it is almost 180degree which means covering whole front of antenna Ө tangle.

Cisco SPA509G - vertical orientation

How to turn Cisco SPA509G handle of handset for vertical orientation of the phone? Unfortunately, I did not find this information in the manual and do not want to damage the phone.

Not AP , but the polarization is a term related to the antenna. Polarisation depends on the antenna orientation.
For a vertically polarized antenna, the E-plane usually coincides with the vertical/elevation plane. For a horizontally polarized antenna, the E-Plane usually coincides with the horizontal/azimuth plane.

WIFI network performance - lid closed vs open

Hi,
I have a house that is not ideal for wifi. In particular, my office is an extension off the kitchen which has a solid brick wall between it and the rest of the house. Through 2 airport extremes, i get great wireless N signal everywhere in the house except this office. So, i added a 'N' airport express at the base of the stairs to this office and 'extended' the network.
So, i have 2 macbook pros up here. One is running on batteries, sitting on my desk, lid open. It is showing a rate of 108, signal -66 and noise -88 in the advanced wireless clients section of the airport express which it is getting it's signal from.
The next is closed and connected to a LED 24" cinema display. It is right next to the other MBP. It is showing a rate of 41, signal -80 and noise -93.
Why such a huge difference? Would it be because the lid is closed, it is connected to the display or a faulty macbook?
thanks.

In the non-unibody MacBook Pros, the antenna is in the lid, and it's under the rubberized cutout in the lid that you see just below the screen along the middle of the hinge, and it wraps around the hinge to the back. The rubber cutout is necessary because without it, the aluminum lid and case basically blocks signals.
When the lid is closed, the rubberized part that is visible is along the back, so theoretically, the antenna should still be exposed, but maybe the antenna orientation is just different enough when closed that it affects the reception. I don't really know how it's laid out under there.

4 Wi-Fi Tips from Former Apple Wi-Fi Engineer

Hi, I thought this was a real neat little article from Alf Watt, former Apple Wi-Fi engineer and creator of the fantastic Wi-Fi utility, iStumbler, Thought I would share.
Alf Watt, former Apple Wi-Fi engineer and creator of the fantastic Wi-Fi utility, iStumbler, joined us on this week's Mac Geek Gab 509 to talk all things Wi-Fi. The episode contains a bunch of juicy Wi-Fi tips and I highly recommend you give it a listen, but for now our four favorite tips are listed below. Think of this as the MGG 509 Cliff's Notes... and make sure you read, erm, listen to the whole thing, too. On to the tips:
1. Use same SSID for all radios on the same network (be they 2.4GHz or 5GHz). If you have one network in your home but have either multiple routers/access points for better coverage or multiple radios in one access point, the advice is the same: use the same SSID (wireless network name) for all of them and let the client devices each decide which is best to use.
Apple devices choose networks by your preferred order. Period. If you have multiple networks of different names your Mac or iPhone will always choose the first in your iCloud-synced "Preferred Networks" list even if this one isn't going to give you the best bandwidth. If you have the network name/SSID the same then it will chose the radio that it predicts will give the best throughput (which isn't always the one with the best signal, but that's an even geekier discussion you can hear in the show). Make all the Wi-Fi networks in your home the same. Your life will be better for it.
2. Deal with congestion with more access points using less power. In response to a listener's query about how best to deal with having lots of access points in a small location, say an apartment building, the best thing to do is to actually increase the number of access points but lower the transmit power on each so as to keep them from interfering with each other. It's good if your neighbors do this, too, of course, but it will help even if it's just you. We recommend using Powerline adapters to connect all of your access points together to avoid the headaches of just extending Wi-Fi.
Another helpful option is to use 5Ghz channels where possible. The higher frequency band doesn't go through walls as well and may be exactly what the Wi-Fi doctor ordered in highly-congested areas (and when we get 60Ghz Wi-Fi, that'll be even more helpful!)
Next: When to use Wide channels and Antenna Orientation.
3. Don't use "Wide" 40MHz channels on 2.4GHz. Some routers (not Apple's) will allow you to use "Wide" channels on the 2.4GHz band. The problem is this band is so congested that you'll likely just wind up making things worse instead of better. Bluetooth lives here, too, and will appreciate the breathing room. Plus, Apple made the decision years ago to not support these wide channels at 2.4GHz, so even if your router allows you to enable it your iPhone and MacBook won't use it.
On your 5GHz radios 40MHz channels are perfectly acceptable (again, your Apple router takes care of this for you). And with 802.11ac (5GHz only) you may wind up using 80MHz or even 160MHz channels. Just remember that current 5GHz implementations only have enough room for TWO (yes, 2) 160MHz channels, so choose wisely. The good news is that current 802.11ac routers use "cognitive radio" technology. This means they listen before they talk and that will ratchet down from 80MHz (or 160MHz) to something lower if they see another router communicating in the same band. Smart.
4. Be smart about antenna orientation. If your router has internal antennas (as most new models do), make sure to use them in their natural orientation. Put simply: if the router has feet, use them as feet (as opposed to laying it on its side). Some routers have feet on two sides and give you placement options, so feel free to capitalize upon this flexibility.
For routers with those adjustable, "rubber ducky" antennas, Alf recommends pointing one straight up and one flat out. This is because radio reception is maximized when both client and access point have matched polarization (antennas pointing along the same plane).
Some client devices have antennas in vertical orientation, some horizontal. The current crop of MacBooks, for example, have their antennas in the black plastic part of the hinge in a horizontal orientation.
Those tips should get you started. Give Mac Geek Gab 509 a listen to learn more about beamforming, the future of Wi-Fi, how your router decides what country it's in (and what channels it can use!), the future of iStumbler (and other products from Alf) ... and more!
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Roaming isn't part of the WiFi specification.
While some clients may look for the strongest signal most just look to see if they can connect to the last AP they were connected to.
Some SOHO APs will allow you to set them to reject a connection weaker than -70db.
To get efficient roaming between APs you need commercial AP controllers which monitor the entire network of APs to see which one offers the strongest signal and has the smallest load.
To the best of my knowledge there are no SOHO router/APs that talk to each other which is necessary for effective and seamless roaming. Apple hardware is supposedly better than other brands, but I have never used it.
Most people are better off setting up individual SSIDs for each radio that identifies the location (Upstairs 5, Upstairs 2.4, etc.) so a user can make an intelligent choice of which to connect to. If speed doesn't matter such as when checking and downloading e-mail then any SSID/radio will do. If you want to stream video than the nearest and probably the strongest 5 Ghz AP is what they should connect to.
Changing the names of SSIDs is trivial so if people want to try using all radios with the same SSID they should go for it. If they aren't happy with the results then go to plan B and rename.

Thinkpad X220: bad wlan connection when docked and lid closed

Dear forum
I use a Lenovo ThinkPad X220. I have no trouble with the wlan connection when i use the notebook alone. The wlan connection is also stable when i use the notebook plugged in the dockingstation with the lid open. But when I use the notebook plugged in the dockingstation with the lid closed my wlan connection drops regularely to about 2 Mbps and gets very unstable.
The ThinkPad uses the Intel Centrino Advanced-N 6205 wlan network controller:
$ lspci | grep 6205
03:00.0 Network controller: Intel Corporation Centrino Advanced-N 6205 [Taylor Peak] (rev 34)
The network controller uses the iwlwifi driver, that comes with the current linux-firmware package:
$ pacman -Ss linux-firmware
core/linux-firmware 20150206.17657c3-1 [Installiert]
Firmware files for Linux
I didn't change any options of the kernel module, everything runs in default mode:
$ modinfo -p iwlwifi
swcrypto:using crypto in software (default 0 [hardware]) (int)
11n_disable:disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX (uint)
amsdu_size_8K:enable 8K amsdu size (default 0) (int)
fw_restart:restart firmware in case of error (default true) (bool)
antenna_coupling:specify antenna coupling in dB (default: 0 dB) (int)
wd_disable:Disable stuck queue watchdog timer 0=system default, 1=disable (default: 1) (int)
nvm_file:NVM file name (charp)
uapsd_disable:disable U-APSD functionality (default: Y) (bool)
bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)
led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int)
power_save:enable WiFi power management (default: disable) (bool)
power_level:default power save level (range from 1 - 5, default: 1) (int)
fw_monitor:firmware monitor - to debug FW (default: false - needs lots of memory) (bool)
At first I thought, the problem could be caused by the KDE power saving settings. I changed the settings, so nothing happens when I close the lid (no hibbernation or screen lock or something like that), but without success (the wlan connection is still unstable under the described circumstances).
Also dmesg shows nothing that points out a problem (as far as I can see):
$ dmesg | grep iwlwifi
[ 19.688522] iwlwifi 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control
[ 19.688679] iwlwifi 0000:03:00.0: irq 31 for MSI/MSI-X
[ 19.696095] iwlwifi 0000:03:00.0: loaded firmware version 18.168.6.1 op_mode iwldvm
[ 19.718023] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG disabled
[ 19.718027] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS disabled
[ 19.718028] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING enabled
[ 19.718029] iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R) Advanced-N 6205 AGN, REV=0xB0
[ 19.718145] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[ 19.753757] iwlwifi 0000:03:00.0 wlp3s0: renamed from wlan0
[ 20.128443] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[ 20.128652] iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
[ 20.403905] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[ 20.404212] iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
[ 68.922975] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[ 68.923192] iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
So I have no idea where this strange behaviour comes from (only wild guesses: buildfactor, antenna orientation,...).
Any help would be really appreciated.

hmmm...
how about checking both your wired and wireless nic drivers in device manager to make sure that the "allow computer to turn off this device to save power" checkbox on the power management tab is deselected.
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WRT150N - Very Good Signal with little or no connectivity from wireless computer

I just hooked up my WRT150N today and have had countless issues with the wireless connection. Literally only 50 feet away and I was having LOW signal strength and intermittent connection. After HOURS on phone with tech support, and after downloading the firmware to no help, they said to just play around with the channels until it improves. Well, I followed some advice in one of the other threads and suddenly the strength jumped up to Very Good. The problem is that it shows 4 out of 5 bars lit up and at times all 5 bars lit up but it still says Limited or NO connectivity. Anyone know how to fix this? I reset the settings based on the advice of another thread and have LOW signal but yet excellent connection and video feed. I'd prefer the "Very Good" strength AND great connectivity which is obvious. Does anyone have any advice? Thanks!!!!

You can be physically close yet have poor signal strength is you have a very absorbent wall between the client and the router. So that's one ting to watch for. Having the router near any metal, cordless phone system, the ground, or other absorbing material (think of things that absorb water, like drywall) will also reduce signal levels.
Most often this sort of problem is interference from other routers that your neighbor has nearby, or cordless phone systems, which share the same frequency space as 802.11 routers.
Install the utility "Network Stumbler", available free from http://netstumbler.com/ Then check for what other routers and clients appear in NetStumbler, the channels they are on, and their signal strengths (as well as yours). You can use this to find a channel that is less congested and spaced far apart from competing channels (they overlap in frequency significantly), as well as to optimize your antenna orientation, router location, client location, and router settings.

WLC4402 and Symbol MC3090 Handhelds

Weird issue:
I have some handhelds using certificates to connect to the internet in my office.
The handhelds can connect in all the complex but inside a warehouse, all the config for the APs is the same, we use 1242s and 1131s (yes inside the warehouse we have both models) and the ports where we have the APs connected were configured as trunk, at the time we set them up as access for the wireless vlan (in this case vlan 7).....
A little detail, if I take a laptop and try to connect inside the warehouse, I can with no problem at all but the handhelds cannot connect.
On the WLC4400 I can see all the handhelds associated to the wireless network but under the Policy Manager State I get "8021X_REQD" for all those handhelds inside the warehouse.
Any clues?
Posted by WebUser Eridanny Aviña

I would highly suggest the debugs that the other members have requested. The proof will be in the pudding at that point and any "changes" are a shot in the dark without it.
Another thing to consider since you mention these devices work fine inside the office, but not in the warehouse is AP placement and antenna orientation. It is fairly often that APs are deployed with poor RF consideration for large warehouses. Can you describe the mounting location of these APs? You mention you are using 1131 and 1242s so please describe each.
Are the APs mounted to a high ceiling? Are there large racks or obstructions that can lead to attenuation or unwanted multipath, etc? How high are the APs mounted? For the 1242's, what type of antenna and what orientation are these antennas (ie, for instance with a dipole; are the antennas pointed downards/perpindicular to the ground, or a re they horizontal/parallel to the ground?)
What power level do you see your APs in the warehouse transmitting at? How does this compare to inside?
Also; you mention your APs are configured for a trunk? Unless you are performing H-REAP local switching, which it doesn't sound like as the APs are local to the WLC at this campus, then you should keep your AP on an access port. The AP will just need to be able to get back to the WLC on this single VLAN with it's client CAPWAP data. Clients will egress the WLC on their respective VLANs through your dynamic interfaces; they do not require a trunk port at the AP itself. This should not have any affect on your problem; but I would suggest keeping the AP config clean and simple.

Actiontec Wireless Signal next to none, your experience

I just had FIOS installed and they replaced my DSL modem with an Actiontec wireless router. Besides the real hassle of re-configuring my existing routers to work with the new Actiontec, I am getting a very very unacceptable wireless signal. Fifteen feet away ant it barely connects, never mind a room or two away as my D-Link DGL-4500 did with ease.
What has been your experience ??
They are sending me another but not sure if it will be better.
Thanks
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In general, based on numerous comments in these forums, the signal strength of the ActionTec is not great and the antenna configuration doesn't seem conducive to a good coverage pattern. I can reach my ActionTec from anywhere inside my house, but anything immediately outside my house is no longer reachable (such as on my deck). I have had some success moving my router around and changing the antenna orientation -- paying particular attention to avoid being near large "solid" objects or large metal objects -- and by manually selecting the channel on which the router broadcasts.
By far however, my best experience has come from disabling the wireless on the router and using a wireless access point (such as your Dlink in Lan to Lan connection mode with DHCP turned off) to carry the signal.

Omnidirectional antenna pattern and position

I have a number of internal AP models (3502i, 3602i, 3702i). I understand that they all have inbuilt omni-direction antennas (creates a 360 degree coverage pattern). My question is - does it matter which position the AP mounted? Does it makes any difference (coverage wise if I mount the ap horizontally or vertically? or the signal radiate to the same area no matter which position I mount the AP? Any feedback, reference or links would be greatly appreciated.

When mounting an access point on a horizontal or vertical surface, you must ensure that the access point is oriented with the LED indicators pointing down .This positioning allows the LEDs to be visible to someone on the ground below the access point.
You must also ensure the access point is mounted with the hinged access cover facing out.
Note : Omnidirectional antennas are vertically polarized and should be mounted vertically with the antennas facing down.
For more information on Installation of Access Point Please follow the below link:
http://www.cisco.com/c/en/us/td/docs/wireless/access_point/1550/installation/guide/1550hig/1550_ch2.html#pgfId-1105363

Mac Mini antenna stopped working

I replaced the RAM in my Intel Mac Mini. In the process, the WiFi antenna popped out (from what I have found, this is not uncommon). I reconnected the antenna. Initially, I had only received weak, intermittent reception. Now I get no reception at all.
I reopened the Mini and confirmed the the antenna is properly connected, the wire is routed properly and the antenna is seated properly. I still get no reception although it does detect our wireless network. However, it times out trying to connect to it. I reset the PRAM but no luck.
Have I missed something or is my antenna fried? Any insight would be greatly appreciated!

I'm not one of the more knowledgeable people here but would think that if does detect the wireless network the system is working. What may be the issuse is your Mac Mini authenticating itself to the network.
Check that both are using the same type encryption WEP, WPA, etc and that the password is correct - I have once in a while, though rarely, had to remove the old password from the Keychain and reenter the same thing to establish a connection. You also might try re-orienting the Mac Mini - I have noticed that at a great enough distance my MBP will recognize the WIFI in the house, giving me one bar, but will not connect and infact will timeout.
Good luck,
rhys

AP 3502i antenna orientation

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