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. ;)

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Also, what is the length of the cable, and what is the model No of the cradle?
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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?
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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.

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."
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Thank you,.

Aironet 1260 and external Antenna

I know you can put a minimum of 3 AIR-ANT-2422 antenna on the 1261 AP but my question is, can you mix and match antenna?
Currently there is an AIR-ANT-24120 used on an older 1200 model. Upgrading to a 1261. The 24120 is 12db and 2422 is 2.4db.
Environment is Manufacturing floor with 30' ceilings, worried about coverage. Can the 24120 work on the 1261 or am I stuck with the 2422s?
Thanks

You can't mix-and-match these two. AIR-ANT-24120 is a 12 dBi antenna. The 1260 will not support anything higher than 6 dBi because this model simply doesn't have enough power to do so.
The 1260, 3500e and 3600e doesn't have enough power because in the past people kept complaining that the 1250 needed 20.0w PoE power. Now the the 1250 doesn't have any limitation about the maximum (maybe it does but I haven't seen or heard of it) gain support. So Cisco cranked down the power requirement of the new WAPs and balanced it to the antenna gain.

Mac mini: WiFi Board Manufacturer and External Antenna Capability

I recently purchased a new Mac mini and plan to run Linux Red Hat Fedora Core 4 on it (erasing OS-X, as it will be a dedicated Linux ap). My particular application requires that I run WiFi. I don't know if Fedora Core 4 running on a Mac mini supports the particular WiFi manuafacturer's internal WiFi card that Apple is using in the current Mac mini.
2 Questions:
1. Does anyone know the name of the Manufacturer, and perhaps the Model Number, of the internal WiFi board in the current Mac mini?
2. Has anyone opened up a Mac mini to see if the internal WiFi card has a standard SMA type connector to the antenna cable so I can utilize an external gain antenna for longer range WiFi?
Thanks, in advance, for any help on this!
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Yes, but I don't think that will do the trick. My application involves supporting a gateway for the ICOM D-STAR digital voice and data Ham radio repeater system. The computer (running Fedora) must have 2 Ethernet ports (note: a USB interface supplying a second ethernet connection is unacceptable due to latency concerns). The only way to do this is to use the Mac mini's single (only!) Ethernet port to interface to the ICOM gear. Since you can not add a second Ehternet port to the Mac mini (unless you use a USB adaptor which has unacceptable latency for this ICOM app), you must therefore use the Mac mini's internal WiFi board to connect to the Internet. The problem is that I don't think Linux Fedora 4 supports any drivers for the Airport Extreme card.
I saw on the Internet late yesterday a blurb saying that all of the Macs use the Broadcom WiFi card, and it has not released its drivers. Apparently, there are a few preliminary drivers for the Airport Extreme card on Fedora 5 (in the very early experimental stage), but these are preliminary and based on soemone's reverse engineering, which is always suspect, at best.
However, I don't know if Apple has possdibly switched vendors for the internal WiFi board in the latest Mac mini, since they now have a new unified board that supports both BT and WiFi on the same board/chip. My fingers are crossed that maybe they are NOT using Broadcom on the latest Intel Mac mini?
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1310 Bridge - can it work without an external antenna?

I have 2 1310 outdoor bridges- I can only connect them using external antennas. Is there something wrong in the configuration where im not able to use the internal antenna: attached is the config:
Current configuration : 1371 bytes
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
no aaa new-model
dot11 ssid 6
vlan 1
authentication open
infrastructure-ssid
dot11 network-map
bridge irb
interface Dot11Radio0
no ip address
no ip route-cache
encryption vlan 1 key 1 size 128bit 7 307B2064018D12507336461E467E transmit-key
encryption vlan 1 mode wep mandatory
ssid 6
station-role root bridge
interface Dot11Radio0.1
encapsulation dot1Q 1 native
no ip route-cache
bridge-group 1
interface Dot11Radio0.300
encapsulation dot1Q 300
no ip route-cache
bridge-group 10
interface FastEthernet0
no ip address
no ip route-cache
hold-queue 80 in
interface FastEthernet0.1
encapsulation dot1Q 1 native
no ip route-cache
bridge-group 1
interface FastEthernet0.300
encapsulation dot1Q 300
no ip route-cache
bridge-group 10
interface BVI1
ip address 10.0.3.10 255.255.255.0
no ip route-cache
ip default-gateway 10.0.3.1
ip http server
no ip http secure-server
ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
snmp-server community public RO
bridge 1 route ip
line con 0
line vty 0 4
login local
end

The 1310's either have an external antenna connector or an integrated antenna. They don't have both.
The part number AIR-BR1310G-x-K9-R requires and external antenna. AIR-BR1310G-x-K9 has the integrated antenna.

AP1310 bridge w/Yagi antenna, repeater between two bridges

I have two sets of AP1310 bridge and yagi antenna to connect them but realized need a repeater between them due to line of sight.
I'm thinking purchase another AP1310 bridge with two Yagi antennas with pointing one(right) to Root and the other(left) to Non-Root. Is this valid solution? or advise please.
Thanks,

I believe your throughput when using dual bridges in the middle will be very limited. The link from the central location to the first bridge in the middle will have one SSID and channel and the second bridge in the middle will have another SSID and channel. Also, if you do two bridges back to back, you should use channel's 1 and 11. Using channel 6 in close proximaty will actually overlap slightly into 1 and 11.
The link between the two back to back bridges will be 100M full duplex and therefore almost no loss of throughput.
The extra cost for the extra bridge is worth it.
Seth

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

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/

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 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

Bridge and AP, using a 1200 series bridge.

Hi Folks,
I would like to bridge from an AP1131 to an AP1262 using the 5.8 ghz radios then allow access via the 2.4 ghz radio on the 1260. I will use a directional antenna for the 1260 bridge to optimize performance. The 5ghz radio will only be used for bridging. The ap 1131 is an AP right now but only offers access on 2.4 ghz. There are only a few clients.
The 1130 will be sitting in a window with the ant5160 outdoor mounted and pointed at it from ~200 feet away.
Does anyone see an issue? Maybe suggest a better parts list. I was originally thinking of using a 1310 as the bridge and a 1140 as the AP but that configuration is not as flexiable and the 1310 part is very old... I understand I will not get N throughput since the 1130 is not N capable, it is already installed. I need autonomous AP and can upgrade to 1140 in the future to improve performance.
I plan to upgrade to WCS next year, does it support this type of configuration? I am assuming that IOS does...
So here are the part numbers that I plan to use.
AIR-AP1262N-A-K9
AIR-AP1131AG-A-K9
Directional 5.8 ghz
AIR-ANT5160NP-R=
Omni 2.4 ghz
AIR-ANT2430V-R=
Thanks for any help,
Joe

Joe,
I am a little confused by your post but can offer some answers.
First of all I assume your intending to purt the external antennas on the 1262 not the 1130.
In terms of configuration you will need to configure 1 of the 802.11a radios in either the 1130 or the 1262 as a station role of root and the other in station role of non-root, that will enable them to connect to each other and bridge, then you can configure the 802.11b/g radios any way you choose and everythign should work as I think your intending,
over this distance you may get decent speeds. I'd be more inclined to use 1262's on each side with appropriate antennas; depending on what exactly your trying to accomplish on each side as far as coverage goes..
In terms of moving to WCS and lightweight mode it really doesn't support this configuration.
HTH

Cisco 1300 Series with AIR-ANT24120 external antenna

Here,
I am using Cisco 1300 Outdoor Access Point/Bridge. I connect AIR-ANT24120 omni antenna to the Right Primary connector but i'm not sure whether the AIR-ANT24120 is working or not because i find no difference in range before and after i deploy my AIR-ANT24120. Please could anyone confirm the working configure for this AIR-ANT24120 on my case. The 1300 Access Poiny/Bridge running C1310 Software Version 12.3(8) JA2.

Thanks for the advice. Things now is much clear now. i am connecting a client to the 1310. For a bridge link i can definetly associate from few kilometers away. But i was thinking that it is also possible to associate from few kilometer away using my labtop also. In orther words i am trying to connect a client to the 1310. Please if you have additional words on this, please i am really appreciate that co's i am sure it would help clarify more on this issue. Especially the limitation of clients or how far can i connect my client to the 1310, Or are there any special configuration on the 1310 plus my 12 dbi omni external antenna attach to it that would increase the range for my clients or is it only 100M-200M the maximum range for client irregardless of the external high gain antenna and all.
thanks.

Usb wi fi external antenna

We live on a small (26') sailboat and are presently in a marina at Joe
Wheeler State Park in Alabama. Currently we are on the fringes of both
the verizon network and the marina wi fi. Very frustrating to sit on
the boat and not get either connection.
So. I am hunting for an antenna that I can mount outside and plug into the Verizon 760 and a
seperate one I can use for wi fi through USB. My mast is 34 ft. tall and the
spreaders are at about 20 ft. so would need about 20+ feet of wire. I
could mount them lower but it might get hung up in the sail.
Harry and Barbara
[email protected]

Hi Harry and Barbara,
With an external antenna (if at all applicable), signal loss in the antenna cable could be considerable.
A plain USB cable extension has its limitations, too:
http://www.usb.org/about/faq/ans5
Alternatively, for the Wi-Fi part, you could possibly experiment with a method where a properly positioned wireless Ethernet bridge (also known as a gaming adapter) is used. The device would have to be made weather-proof to begin with. With Ethernet and low-voltage power cables connected, the unit should be able to act as a remote transceiver, thus allowing you to gain access to the local Wi-Fi network.
Examples:
http://homestore.cisco.com/en-us/adapters/linksys-WET610N_stcVVproductId65221232 VVcatId543809VVviewprod.htm?icid=All-Linksys-Products-Bridges&src2=home_linksys_ bridge_all
http://www.netgear.com/home/products/wireless-adapters/high-performance/WNCE2001 .aspx
For the mobile broadband, a mobile broadband router (with support for the USB modem stick in question) could make it easier to find a position with better reception. It might even be possible to, somehow, connect the wireless Ethernet bridge to the router.
Example:
http://www.netgear.com/home/products/mobile-broadband/3g-mobile/MBRN3000.aspx
Jan

Bridge and external Antennas

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