External antennas and gain settings

Cisco AIR-AP1242AG-E-K9.
In the web interface, if one goes to:
Network Interfaces/Radio0-802.11G/Setting tab
half way down the page there's a section called External Antenna Configuration and you can enter an Antenna Gain in the box.
The access point came originally with two small plastic antennas, about 6 inches long but I took these off and connected two external antennas, one is 3db, the other 6db. Should I enter 6db in the box or does the access point set the gain automatically? At the moment all antenna settings are at default.

In the case of a Dish, yes, it would absolutely impact your throughput.
It would be better to put the dish on one port and disable the other port.
The dual ports are for diversity; in an inside environment, having two antennas a small distance apart reduces the effects of "multipath" and "nulls" ... multipath is when there are several images of the same transmission (from multiple reflections), nulls occur when you combine a series of waves (like a primary wave and a near reflection) and the combined waves, added together, result a greatly diminished signal (like a "plus" 35 meeting a "minus" 35 ... the result is a null, or no signal).
For point-to-point, or point-to-multipoint diversity is generally not desired or needed.
The way the antennas are used does not permit efficient operation for coverage of more than one specific area.
Good Luck
Scott

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Airport express external antenna and socket.

Hi Everyone - I'm new to this, so please excuse me if my question is naive.
I have a fault with my airport extreme card, which I believe I've narrowed down to either the external antenna or the socket it plugs into on the rear panel. I know I can replace the antenna, but can anyone help with the rear antenna socket - is it possible to replace this and, if so, where could I get one from?
I would be most grateful for any advice.

It is possible to replace the antenna board. AppleComponents.com has the parts, but you'll need to be careful to select the correct computer. Your signature states that you have a dual 2.0, but there were three different 2.0 DP machines. The part is not common amongst all of the models.
The install is not the easiest either. It will require you to remove the upper processor and a few other components. If you remove a processor, you'll need to run the thermal recalibration routine from the service discs. This is true even if you reinstall the processor in the same socket. An Apple Authorized Service Provider will have this disc, or you can locate it yourself with enough searching.

External monior and forgotten settings

My MacBook is used with a Sony 23" monitor connected through a BookEndz dock and video converter cable. 95% of the time, the external monitor is connected and on.
Almost every Startup requires that I reset the monitors (Detect Displays) and then manually put icons back where they belong.
*Anyone know of a way to avoid this daily annoyance?*
(There was once a 3rd party applicaiton that did this automatically, but it no longer works with 10.5.6.)

In the case of a Dish, yes, it would absolutely impact your throughput.
It would be better to put the dish on one port and disable the other port.
The dual ports are for diversity; in an inside environment, having two antennas a small distance apart reduces the effects of "multipath" and "nulls" ... multipath is when there are several images of the same transmission (from multiple reflections), nulls occur when you combine a series of waves (like a primary wave and a near reflection) and the combined waves, added together, result a greatly diminished signal (like a "plus" 35 meeting a "minus" 35 ... the result is a null, or no signal).
For point-to-point, or point-to-multipoint diversity is generally not desired or needed.
The way the antennas are used does not permit efficient operation for coverage of more than one specific area.
Good Luck
Scott

Possible to mount off the external antenna of the MSI AP11B?

Hi! I am thinking of buying the MSI AP11B Acces Point. But is it possible to mount of the external antenna, and mount another antenna to boost up the signal?
Best Regards

First I want to tell that my english is very bad ..
The external antenna basicly is a RF cable and nothing more. Put one RF conector on this short cable (aprox 5-6 cm) and attache an external antena. You must change in web settings antenna type for external ....
Inside the AP you find a internal patch antena. In diversity mode the AP use both.
Regards

Has anyone had any success with an external antenna on a UMW190?

Although I am getting good service from my UMW190 without an external antenna, I am in a low signal area and would like to have rock solid coverage.
I have tried a 1900Mhz yagi, a blade antenna, an omni, and a grid antenna. I am not seeing any difference in signal strength at all regardless of whether or not an antenna is connected and which way it is pointed. I have also tried two different pigtails form two different sources, and even borrowed a second UMW190 and tried it, all with no success. I know exactly where the tower serving my house is located, but I did try each of the directional antennas in a full 360 degree circle, stopping every few degrees to see if the RSSI improved. I tried both polarities too, although I understand it should be vertical.
When I contacted Verizon customer support they had very little information about it. I contacted Pantech, and they told me that support for this device is now handled by UTstarcom. UTStarcom told me that support for this device is now handled by Personal Communication Devices. When I contacted them the response was (and I quote) "We don't have any information on any external antenna support of our devices".
So I throw myself on the mercy of the Gurus here in the forum.
Am I missing something obvious? Is there a command that "activates" the external antenna connector? Does the connector even have anything connected to it inside the modem?
Any guidance on this would be greatly appreciated!
-Rick

Usually the external antenna works best where service is obstructed by certain materials and the external antenna is placed in a different area . If the signal is steady for the external antenna and the UMW190 in the area where you are using the devices, that would be the general signal strength of that area.
The recommend accessory for your device can be found at the link below:
Copy and paste the link below into your browser's address bar.
http://www.verizonwireless.com/b2c/store/accessory?action=accessoryDetails&archetypeId=11424

Antenna and cradle for E65

Hi
I often have a bad signal in my car so I need an external antenna and cradle for my e65. Which products do i need for that?
Kris

Nokia do not do a cradle with antenna coupler for this phone, but THB Bury do one, try here;
http://www.bury.com/en/hands-free-car-kits/uni-system-8/uni-take-talk-cradle/nokia/nokia-e65.html
Danny b
Nokia Accredited Installer
If my answers help you, give me a Kudos. Its like a pat on the back.

How do i run an external monitor with my macbook and change settings so that when i close the lid the signal to the monitor is not lost and i can continue using the mac with a mouse and a wireless keyboard?

How do i run an external monitor with my macbook and change settings so that when i close the lid the signal to the monitor is not lost and i can continue using the mac with a mouse and a wireless keyboard?

No, nothing will prevent the computer from going to sleep when you close its display except third-party hacks that are designed to do exactly that. I strongly advise against using any of those, as they may interfere with successful entry into clamshell mode (and they carry other downside risks as well). Just wait until the computer is asleep (with its sleep light pulsing), then press any key on the keyboard. It sounds as though your setup is working as it's designed to do.

When I use a GSI external antenna for WiFi I first get a message that "Firefox is already running but not responding etc", and then Firefox crashes. Can anyone help please?

Because of weak WiFi signal I need to use an external antenna (GSI USB wireless WIFI long range network adapter). My computer can see the signal clearly and shows that I am connected to the right network. But when I try to launch Firefox I get a message that "Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system." When I click "OK" Firefox tries to load websites but gives up and reports "Problem Loading". It looks like Firefox is having trouble "seeing" the signal from the external antenna. What do I need to do please?

Try Ubuntu support, I don't think your problem is with Firefox - it will use the connection that the Operating System "makes". I'm a real noob with Ubuntu myself, and don't think I can help you figure out the problem.
http://ubuntuforums.org/

Can external users change their language, time zone, and locale settings?

Hi,
We’re migrating our hosts from WebEx cloud to our on-prem solution right now (CWMS 1.5.1.323.A).
We’ve learned that CWMS 1.5 does not provide an online address book where hosts could customize language, time zone, and locale settings for their external attendees.
Do external users have any chance at all to change their language, time zone and locale settings individually?
Thank you,
Helge

Hi Dejan,
"external users" are those participants, who do not have an LDAP account in our deployment, since they are not intendet to act as hosts: our stakeholders, partners, customers, clients.
It looks, as if these people would stick to the systems' default language / time zone / locale.
We are wondering if there might be a CWMS-component like this:
https://artcom.webex.com/cmp0307l/webcomponents/widget/preference.do?serviceType=MC&siteurl=artcom&target=Page&backUrl=%2Fmw0307l%2Fmywebex%2Fdefault.do%3Fsiteurl%3Dartcom%26service%3D1
to allow those "extenal" participants to make their adjustments.
Thank you,
Helge

Problem on Cisco AP 1240AG and External Antenna

Hi all :
I am setting and configure the Cisco AP 1240AG with 5GHz External Antenna extension. The whole product is called iWap. The problem now is that the wireless signal amplitude only can reach 3 bars instaed of ful 5 bars.
Please help below few questions I have for this setup and configuration :
1. What is the default or original frequency of antenna of Cisco AP1240AG? Can a 5GHz antenna work with the AP 1240AG whereby it is run with 802.11a and 802.11g?
2. If 5GHz antenna can work with 802.11a or 802.11g, what is the setting or configuration needed to be done at the Cisco 1240AG? Or, no setting or configuration needed because it will automatically work by default?
Many Thanks in advance and best regards,
tangsuan

1240 is the product "line," 1242 is the specific model. The come in both G and AG variants. The link below is a picture of an AG variant (with both an 2.4 Ghz "A" radio and a 5 Ghz "G" radio). The two antenna ports on the top in the blow image are for the 5 Ghz radio, and there should be some blue text indicating as much.
http://www.cisco.com/en/US/prod/wireless/ps5678/ps6521/prod_large_photo0900aecd8031d92d.jpg
If you don't have the two antenna ports on top, and just have two near the ethernet and console ports, then you have a "G" model, which only have a 2.4 Ghz radio. See my pic below. G model on the left, AG on the right.

Nokia 3315 with cradle and external antenna(car an...

I have an old 3315 and I use it on a boat with an external antenna to get a better calling range.
My old 3315 is now having repair problems and I want to buy (on eBay) a more modern phone but still use the cradle and external antenna. A problem with the 3315 is that they are becoming uncommon and the ones that are available have been well used and often have tech problems now.
I see that the 3310 has a similar shape and no doubt the cradle fits it also. I have the antenna on a long piece of coax cable and pull it up the mast on the sailboat to improve the reception.
Can anyone give me some help with this? The more modern I go the more features I get (eg mp3 player,radio reception) however I still want to retain the existing external antenna setup as it is great for camping and boating to stay in touch.
Thanks
Peter

Also, what is the length of the cable, and what is the model No of the cradle?
I have a 3310 and can test how well it works with your setup.

Bridge and external Antennas

I am trying to setup 2 1240ap in a bridge mode using external antennas. I am wonder how you line up the antennas to obtain the best signal. I know the 1300 series has software that allows you to see a signal as you line up the antennas, but I don't think the 1240 series has that feature. Any help would be greatly appreciated
Thanks
Steve Chapman
LAN Engineer
University of Missouri - St. Louis

There's a couple things.
You could hook up a laptop at the receiving end and attach a directional antenna to the wireless card. Then use something like netstumbler to position everything where you want it.
I guess you could also use a laser pointer. Mount it on the top of the antenna in question, and target the receiving antenna. Obviously, have the minion you're using on the other side face AWAY from the laser pointer. ;)

Car Cradle for Charging and External Antenna Compatible with Tour

Is there a car kit that allows easy charging and connection to external antenna for the Tour? I had Comfort Cradles by Bury for my last two BlackBerrys, but I just was disappointed to learn that Bury does not have or even plan one for the Tour. Any suggestions? If I had known this before, I probably would have stayed with my 8830. Thanks.

To answer my own query - I just spoke to someone at Smoothtalker and was informed that Smoothtalker will be releasing a charging cradle, with external antenna conttection, for the "Tour" in "about a month."
I still would be interested in hearing from anyone else with any information concerning this.
Thank you,.

WAP200E and WAP200 as repeaters, external antennas, poor signal

I am having some weird things happen...
I have setup a WAP200E external w/o optional antenna and using (2) WAP200 internal units in separate buildings setup as repeaters. I have added a external
Yagi 10Dbi directional antenna to both repeaters with short cables and using the standard antenna for the internal wireless needs.
Both buildings are about 200' line of sight from the WAP200E with a angle of less then 45 degrees from the WAP200E,
I am getting a signal that continually jumps from 20% - 60% Channel keep changing etc... looks like a typically poor signal connection
I am able to access the internet from either repeater, but not reliably
Question 1: External Antenna....
I was going to install a similar external Yagi antenna on WAP200E but I was reading that the external antenna in turned on automatically when the WAP200E
senses a antenna. Cisco only certifies one particular antenna to connect to the WAP200E and that is the HGA9N which is a 9DBI omni directional antenna
I would much rather use a directional antenna, but I was reading that the WAP200E may not reconize any other antenna's, plus I cant find any way to determine if the WAP200E actually turns on the external antenna. Does anyone have any experience using the WAP200E with external antennas?
Question 2:
SSID's on repeaters
On the WAP200E and WAP200 units, It show that that repeaters can have unique SSID's I tested them using the same SSID as the A/P and also with unique SSID's Which approach would be the more reliable?
Question 3:
Freq Channels setting:
Typically I would set the channel to be fixed on all three units to keep them from hopping from channel to channel. Is my logic correct?
Is there any way to determine which channel is the best, beside trial and error?
Also, can I lock the speed to a slower setting to help improve reliability?
Question 4:
Bridging:
I was considering setting up one of the repeaters as a bridge can the WAP200E A/P handle communicating with a bridge and a repeater at the same time?
Does anyone have any experience using these as bridges? I see a few issues online regarding briging with these units
Wireless is tough enough, but flakey wireless product can make you wish had a wire
Firmware... 1.20 on the WAP200E A/P unit.. I guess I will try 1.20a but the blogs say it doesnt matter
Firmware on the WAP200 unit is unknown at the moment
Thanks in advance

Update...
After speaking with Linksys support staff, they informed me that the antenna jacks on the WAP200 are slightly different
One jack is TX & RX and the other jack is RX only...
It is not documented or labeled as such on the device.
The support person told me it was the right jack when facing the rear of the unit with the network jack facing you. but this is the way I
had it configured... so for giggles I swapped the antenna jacks and presto it works fine
Many thanks
Bob

To what limits (lower and upper) are the PXI-6052E boards calibrated for their various gain settings?

I am trying to get some boards calibrated by our metrology lab, but I can't find the relevant information.

I've viewed all, and downloaded most, info at the link that you've mentioned. Unfortunately, the data I'm looking for isn't there. In the E Series Calibration Procedure document, there is an extensive listing of tables that contain calibration data points for a variety of E series boards. However, the 6052E board isn't listed. Elsewhere on the ni website, there is a note to use the 6034E/6035E tables for the 6052E boards. These tables do not contain all the gain settings for the 6052E. I would assume that the 6052E boards were factory calibrated at all possible gain combinations.

External antennas and gain settings

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