Re: Airport extreme - How to extend my network?

2010-03-09 Thread Clark Martin


On Mar 8, 2010, at 8:19 PM, Jeffrey Engle wrote:





On Mar 8, 2010, at 1:58 PM, Clark Martin wrote:

One problem with this lashup is that the relay AEBS may or may not  
get a strong enough connection to the main AEBS.  That is because  
all it's WiFi traffic would be going through the Cantenna.  While  
it is a directional antenna there is still signal pickup around it  
in all directions.  But whether it will be strong enough you won't  
know until you try it.  If you can use an Ethernet cable to  
connect the two AEBSs then this won't be a problem.


I should add, this is also faster as the relay AEBS would have to  
receive and send every packet, taking twice as long.





Hey Clark, If I hook the two AEBS's up together like you said, I  
should see them both in airport utility, right? then I want to  
configure the one with the cantenna to simply extend my network?  
OR join my network which one is better? Jeff


The main AEBS should be as it is now.  The relay AEBS would be set up  
to just act as an access point.  I'm not sure of the terminology, the  
only AEBS I have doesn't use those phrases.  But I think you want  
extend my network.  This should do what you want.  Make sure the  
two use different channels from the choice of 1, 6 and 11.


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Re: Airport extreme - How to extend my network?

2010-03-09 Thread Dan

At 10:52 PM -0600 3/8/2010, Ralph Green wrote:

On Mon, 2010-03-08 at 11:54 -0500, Dan wrote:
  I can see where a client computer could have problems if it's too

 close to a high powered WAP, by being overwhelmed etc.  But it would
 have to be darned close.  Never heard of lower performance etc.  No

  idea where you'all are getting that.  cite?

This is anecdotal, but I did observe it first hand.   At the 2008
PyCon, the wireless network performance was very bad at first.  Our head
network guy made 2 changes.  He changed the channels on some of the
access points.  The wireless contractor had set them all up on the same
channel.  Our guy also lowered the power on the access points.  He told
me that both changes were needed.  The higher power was causing multiple
problems, he said.  I did not give a lot of details before, because I
don't know them.  But, our wireless network worked much better after
both changes were made.
The rooms were pretty big, and so people were not always close to the
access points.


Too many WAPs in one location, so close that they overlap and step on 
each other, probably with flourescent lighting here and there -- 
that's a whole other house of pain!  You can cure some of it by 
repatterning the coverage - changing the channels.  And when that's 
not enough, then you need to reduce the power to further reduce the 
overlaps.


In this particular thread, however, we're talking about needing to 
provide coverage over a distance, to a place where there is no 
coverage at all!  No overlaps etc.


- Dan.
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Re: Airport extreme - How to extend my network?

2010-03-09 Thread John Musbach
On 3/9/10, Dan dantear...@gmail.com wrote:
 At 10:52 PM -0600 3/8/2010, Ralph Green wrote:
On Mon, 2010-03-08 at 11:54 -0500, Dan wrote:
   I can see where a client computer could have problems if it's too
  close to a high powered WAP, by being overwhelmed etc.  But it would
  have to be darned close.  Never heard of lower performance etc.  No
   idea where you'all are getting that.  cite?

This is anecdotal, but I did observe it first hand.   At the 2008
PyCon, the wireless network performance was very bad at first.  Our head
network guy made 2 changes.  He changed the channels on some of the
access points.  The wireless contractor had set them all up on the same
channel.  Our guy also lowered the power on the access points.  He told
me that both changes were needed.  The higher power was causing multiple
problems, he said.  I did not give a lot of details before, because I
don't know them.  But, our wireless network worked much better after
both changes were made.
The rooms were pretty big, and so people were not always close to the
access points.

 Too many WAPs in one location, so close that they overlap and step on
 each other, probably with flourescent lighting here and there --
 that's a whole other house of pain!  You can cure some of it by
 repatterning the coverage - changing the channels.  And when that's
 not enough, then you need to reduce the power to further reduce the
 overlaps.

 In this particular thread, however, we're talking about needing to
 provide coverage over a distance, to a place where there is no
 coverage at all!  No overlaps etc.

Personally, I think the best solution would be to purchase a cell
tower. Sure the FCC might eventually come knocking on your door but
until then and as long as your network is secured with a very strong
password... g

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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Ralph Green
Howdy,
  Higher power may not be the right answer.  I helped run the wireless
network for a large conference.  The network expert who was in charge
explained that higher power sometimes causes worse performance.  The
company who had been hired to setup our network had brought in high
powere access points and the performance was terrible.  Our guy turned
down the power and changed some of the channels and drastically improved
our network.
 But, maybe you need high power.  One good nic is like the one on this
ebay auction.
  http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=250568544838
 I don't know that seller, and I am only suggesting you look at the nic
he offers.  When I want an access point, I take an embedded computer
like a soekris box and add a mini-pci nic and run openwrt.  You can
build a setup like this for about $100, even with a high power nic.
Some people want more of a canned solution, but I like better capability
and security.
Good luck,
Ralph

On Sat, 2010-03-06 at 13:11 -0500, iJohn wrote:
 On Sat, Mar 6, 2010 at 12:31 PM, Dan dantear...@gmail.com wrote:
  Companies such as SMC make higher powered WAPs that could be used to bridge
  such distances with no problemo.
...
 Folks keep saying there are higher power WAPs out there. I'd
 appreciate it if they would also include a few model numbers so we


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Re: Airport extreme - How to extend my network?

2010-03-08 Thread John Musbach
On Mon, Mar 8, 2010 at 3:52 AM, Ralph Green sfrea...@sbcglobal.net wrote:
 Howdy,
  Higher power may not be the right answer.  I helped run the wireless
 network for a large conference.  The network expert who was in charge
 explained that higher power sometimes causes worse performance.  The
 company who had been hired to setup our network had brought in high
 powere access points and the performance was terrible.

Not only that, but IIRC higher power means a thinner broadcast radius
as well--eventually becoming strictly line of sight.

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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Dan

At 11:21 AM -0500 3/8/2010, John Musbach wrote:

On Mon, Mar 8, 2010 at 3:52 AM, Ralph Green sfrea...@sbcglobal.net wrote:
   Higher power may not be the right answer.  I helped run the wireless

 network for a large conference.  The network expert who was in charge
 explained that higher power sometimes causes worse performance.  The
 company who had been hired to setup our network had brought in high
 powere access points and the performance was terrible.


Not only that, but IIRC higher power means a thinner broadcast radius
as well--eventually becoming strictly line of sight.


I can see where a client computer could have problems if it's too 
close to a high powered WAP, by being overwhelmed etc.  But it would 
have to be darned close.  Never heard of lower performance etc.  No 
idea where you'all are getting that.  cite?


Higher powered transceivers punch thru more walls and go the 
distance, etc - MUCH better than standard units.  From the OP's 
description - needing distance and to punch past a couple of RVs... a 
higher powered router may be a perfect solution.


Note please that I did not recommend a full-on commercial grade 
outdoor unit - 800mW.  That would be overkill and then some.


- Dan.
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Re: Airport extreme - How to extend my network?

2010-03-08 Thread iJohn
On Mon, Mar 8, 2010 at 11:21 AM, John Musbach johnmusba...@gmail.com wrote:

 Not only that, but IIRC higher power means a thinner broadcast radius
 as well--eventually becoming strictly line of sight.


I'm afraid I wasn't able to parse thinner broadcast radius. What
shape (??) results from a thinner (??) radius?

Also, FWIW, I always understood that line of sight was more related
to the frequency of the transmission rather than the power of the
transmission. So I guess I'm doubly confused.

-irrational john

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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Dan

At 12:14 PM -0500 3/8/2010, iJohn wrote:

On Mon, Mar 8, 2010 at 11:21 AM, John Musbach johnmusba...@gmail.com wrote:
  Not only that, but IIRC higher power means a thinner broadcast radius

 as well--eventually becoming strictly line of sight.


I'm afraid I wasn't able to parse thinner broadcast radius. What
shape (??) results from a thinner (??) radius?


It's a three term geekism!   Mr Spock must to elaborate!  :)


Also, FWIW, I always understood that line of sight was more related
to the frequency of the transmission rather than the power of the
transmission. So I guess I'm doubly confused.


Different frequencies punch thru certain objects better than others. 
Object includes the air mass, with all its varying densities, 
moisture content, and other particulates.


Power = range (distance).

The real controlling factor the sensitivity of the receiving 
device.  If the signal's power has faded too much (inverse square 
law) then the frequency is moot.


- Dan.
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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Doug McNutt

I can't believe that no one has mentioned the Pringle's can antenna.  It was a 
big deal when 802.11 first became popular and folks were reporting a couple of 
miles across a lake. one on each mobile home rooftop pointer at each other 
ought to work pretty well.

It must be Googleable.  Pringle can antenna
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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Clark Martin

On 3/8/10 8:54 AM, Dan wrote:

At 11:21 AM -0500 3/8/2010, John Musbach wrote:

On Mon, Mar 8, 2010 at 3:52 AM, Ralph Green sfrea...@sbcglobal.net
wrote:
 Higher power may not be the right answer. I helped run the wireless

network for a large conference. The network expert who was in charge
explained that higher power sometimes causes worse performance. The
company who had been hired to setup our network had brought in high
powere access points and the performance was terrible.


Not only that, but IIRC higher power means a thinner broadcast radius
as well--eventually becoming strictly line of sight.


HUH?  Do you mean a narrower arc?  That would imply a directional 
antenna.  Using a directional antenna is one way to get more radiated 
power in one direction.  But increasing the transmitter power  will 
increase the range.




I can see where a client computer could have problems if it's too close
to a high powered WAP, by being overwhelmed etc. But it would have to be
darned close. Never heard of lower performance etc. No idea where
you'all are getting that. cite?

Higher powered transceivers punch thru more walls and go the distance,
etc - MUCH better than standard units. From the OP's description -
needing distance and to punch past a couple of RVs... a higher powered
router may be a perfect solution.

Note please that I did not recommend a full-on commercial grade outdoor
unit - 800mW. That would be overkill and then some.


If you just use a higher power transmitter on a base station it will 
only help a little.  That's because while the base station signal can 
reach farther the computer is still transmitting at the same power level 
so the base station isn't receiving any stronger of a signal.  Either 
the base station would have to have a more sensitive receiver or the 
other end of the link has to have a stronger transmitter.  I'm not sure 
a more sensitive receiver is likely, such a thing could be put in any 
WiFi equipment and would likely already be standard.  A stronger 
transmitter on the far end would mean a relay since I don't think there 
are any laptop cards with higher power output.


Now what would work is to use a hi-gain directional antenna, at least on 
the base station end.  This would work for both sending and receiving. 
One could also use such an antenna at the other end.  Some PC Card Wifi 
cards (such as the Orinoco) have an antenna connector built in.  Or a 
relay device could use one.


Another trick that is used is to use a USB dongle.  This can either be 
connected to an external antenna or placed at the focal point of a 
parabolic dish.  One advantage of the USB dongle is that you can use a 
long USB cable to connect it.  Within the limits of USB connectivity the 
cable won't degrade the Wifi signal.  An antenna cable on the other hand 
will badly degrade the 2.4 GHz signal used in 802.11b or g in a matter 
of feet.


--
Clark Martin
Redwood City, CA, USA
Macintosh / Internet Consulting

I'm a designated driver on the Information Super Highway

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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Peter Kim
A cantenna would be a neat project, but there isn't an easy way to hook it
into a macbook's antenna. It would need to be connected to a wireless
bridge, which he would have to get, anyway.

On Mar 8, 2010 11:43 AM, Doug McNutt dougl...@macnauchtan.com wrote:


I can't believe that no one has mentioned the Pringle's can antenna.  It was
a big deal when 802.11 first became popular and folks were reporting a
couple of miles across a lake. one on each mobile home rooftop pointer at
each other ought to work pretty well.

It must be Googleable.  Pringle can antenna
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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Dan

At 10:43 AM -0700 3/8/2010, Doug McNutt wrote:
I can't believe that no one has mentioned the Pringle's can antenna. 
It was a big deal when 802.11 first became popular and folks were 
reporting a couple of miles across a lake. one on each mobile home 
rooftop pointer at each other ought to work pretty well.


It must be Googleable.  Pringle can antenna


ROFL!   Good catch!   I forgot about that trick.

Wave guides are good for directing a signal at a specific location. 
But since they're not actually increasing the signal's overall power, 
it's really just improving the line-of-sight range - they don't give 
it xtra ability to punch thru xtra walls.


- Dan.
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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Dan

At 9:44 AM -0800 3/8/2010, Clark Martin wrote:

Note please that I did not recommend a full-on commercial grade outdoor
unit - 800mW. That would be overkill and then some.


If you just use a higher power transmitter on a base station it will 
only help a little.  That's because while the base station signal 
can reach farther the computer is still transmitting at the same 
power level so the base station isn't receiving any stronger of a 
signal.  Either the base station would have to have a more sensitive 
receiver or the other end of the link has to have a stronger 
transmitter.  I'm not sure a more sensitive receiver is likely, such 
a thing could be put in any WiFi equipment and would likely already 
be standard.


Higher powered WAPs *do* have more sensitive receivers.  That's a 
standard feature.  What would be the point of offering such a product 
without it?


- Dan.
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Re: Airport extreme - How to extend my network?

2010-03-08 Thread John Musbach
On Mon, Mar 8, 2010 at 12:14 PM, iJohn zjboyguard-ggro...@yahoo.com wrote:
 On Mon, Mar 8, 2010 at 11:21 AM, John Musbach johnmusba...@gmail.com wrote:

 Not only that, but IIRC higher power means a thinner broadcast radius
 as well--eventually becoming strictly line of sight.


 I'm afraid I wasn't able to parse thinner broadcast radius. What
 shape (??) results from a thinner (??) radius?

Basically, in lower power access points--like consumer Apple airport
base stations the signal is broadcast in a circular fashion around the
base station. But as the power increases, the signal becomes more and
more narrow until at the highest powers the signal is simply broadcast
in a line from the access point to the receiving end. At least that's
how I understand it.


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John Musbach

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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Bruce Johnson


On Mar 8, 2010, at 11:18 AM, John Musbach wrote:



I'm afraid I wasn't able to parse thinner broadcast radius. What
shape (??) results from a thinner (??) radius?


Basically, in lower power access points--like consumer Apple airport
base stations the signal is broadcast in a circular fashion around the
base station. But as the power increases, the signal becomes more and
more narrow until at the highest powers the signal is simply broadcast
in a line from the access point to the receiving end. At least that's
how I understand it.


No. Directionality is mainly a function of the antenna design, not  
power.


You can get directional access points, but an Airport Base Station  
connected to a cantenna will accomplish the same thing. In the OP's  
case, a bridge or WAP in his daughter's trailer with a cantenna aimed  
at his trailer would suffice. But then, at 75 feet she can probably  
get by with just a WAP acting as a bridge device...


Higher power WAP's simply broadcast a stronger signal  
omnidirectionally, if they have an omnidirectional antenna attached.


Again, you can get highly directional devices, designed to bridge long  
distances with the signal, but these are point-to-point bridge  
devices, not general purpose wireless access points.


--
Bruce Johnson
University of Arizona
College of Pharmacy
Information Technology Group

Institutions do not have opinions, merely customs


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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Clark Martin

On 3/8/10 9:58 AM, Dan wrote:


ROFL! Good catch! I forgot about that trick.

Wave guides are good for directing a signal at a specific location. But
since they're not actually increasing the signal's overall power, it's
really just improving the line-of-sight range - they don't give it xtra
ability to punch thru xtra walls.


Actually they do.  Since most of the transmitter power is now in a 
fairly narrow cone there really is more power to penetrate objects.


Range through air or through objects, it's all the same.  Air just 
attenuates the signal less over a given distance than most anything else.


--
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Redwood City, CA, USA
Macintosh / Internet Consulting

I'm a designated driver on the Information Super Highway

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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Clark Martin

On 3/8/10 10:18 AM, John Musbach wrote:


Basically, in lower power access points--like consumer Apple airport
base stations the signal is broadcast in a circular fashion around the
base station. But as the power increases, the signal becomes more and
more narrow until at the highest powers the signal is simply broadcast
in a line from the access point to the receiving end. At least that's
how I understand it.


Definitely not the case.  How, in that model, does the antenna know 
where the receiving end is?  What happens when there is more than one 
receiver?


The only effect that more power will have on an antenna is that 
ultimately at some very high power level the antenna will melt.  WiFi 
operates at considerably lower power levels than that.


No, increasing the power simply means more power out in every direction 
per the radiation pattern of the antenna.  To get the power out in a 
narrow beam you use a directional antenna.  But radiation pattern is 
independent of transmitter power.




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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Bruce Johnson


On Mar 8, 2010, at 1:19 PM, John Musbach wrote:


Oh alright. I came to my conclusion when I was working on setting up
the wireless network for my family at home. I noticed that the only
higher power antennas I could find for my (now out of date) airport
extreme base station were directional so I assumed that to mean that
directionality was a function of power. I tried looking for
omnidirectional higher power antennas for the airport extreme but I
must've been looking in the wrong places because I couldn't seem to
find any at the time.




Antennas are not 'higher' or 'lower' power. You can attach *better*  
antennas that increase the range but they don't affect the output  
signal, merely attenuate it less on transmission. Directional antennas  
will get you farther range by confining the signal to a narrow region.


Think a hose nozzle set to wide spray (omnidirectional) or narrow  
spray (directional) the water pressure, which is set by the spigot  
valve, is the same in both cases, but the narrow spray reaches much  
farther by confining the water (signal) to a smaller area.


Some antennas come with an auxiliary amplifier built-in which will  
actually increase the signal power, much like the pump in a pressure  
washer will amplify the water pressure input.



--
Bruce Johnson
University of Arizona
College of Pharmacy
Information Technology Group

Institutions do not have opinions, merely customs


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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Jeffrey Engle



On Mar 8, 2010, at 9:43 AM, Doug McNutt wrote:



I can't believe that no one has mentioned the Pringle's can  
antenna.  It was a big deal when 802.11 first became popular and  
folks were reporting a couple of miles across a lake. one on each  
mobile home rooftop pointer at each other ought to work pretty well.


It must be Googleable.  Pringle can antenna
--
	Ok, being the initiator of this fine thread... someone please tell me  
if this will work (as most of this stuff is over my head anyway:-)
I have a new Airport extreme (dual band) on the wall that is currently  
my main access to the internet for all computers, ipods etc. Now, what  
I want to do is get an older (space ship) airport extreme, and it will  
join my existing network wirelessly, then with a connected cantenna  
(connected to the rear antenna port) shoots via line of sight to my  
sisters front room window, allowing her to connect via her macbook.  
Will this work? Jeff


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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Doug McNutt
At 13:18 -0500 3/8/10, John Musbach wrote:
Basically, in lower power access points--like consumer Apple airport
base stations the signal is broadcast in a circular fashion around the
base station. But as the power increases, the signal becomes more and
more narrow until at the highest powers the signal is simply broadcast
in a line from the access point to the receiving end. At least that's
how I understand it.

There are government rules about transmitted power. And they really are 
necessary to prevent spoiling the whole idea of RF connection for others.

So, given that the power is limited, the way to increase apparent power for 
specific usage is to use an antenna that concentrates energy in a beam. As long 
as the receiver is in the beam it's a good way to get better communication 
without violating the rules.

A bussword is antenna gain which measures the ratio of directed power to a 
simple dipole antenna which radiates a disk or to, as dbi, an impossible 
antenna that radiates equally in all directions of 3D space.

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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Clark Martin

On 3/8/10 1:31 PM, Jeffrey Engle wrote:


Ok, being the initiator of this fine thread... someone please tell me if
this will work (as most of this stuff is over my head anyway:-)
I have a new Airport extreme (dual band) on the wall that is currently
my main access to the internet for all computers, ipods etc. Now, what I
want to do is get an older (space ship) airport extreme, and it will
join my existing network wirelessly, then with a connected cantenna
(connected to the rear antenna port) shoots via line of sight to my
sisters front room window, allowing her to connect via her macbook. Will
this work? Jeff



One problem with this lashup is that the relay AEBS may or may not get a 
strong enough connection to the main AEBS.  That is because all it's 
WiFi traffic would be going through the Cantenna.  While it is a 
directional antenna there is still signal pickup around it in all 
directions.  But whether it will be strong enough you won't know until 
you try it.  If you can use an Ethernet cable to connect the two AEBSs 
then this won't be a problem.


I had thought you didn't have clear line of sight to the other mobile 
home, that other mobile homes are in the way.  Or are you planning on 
mounting the cantenna very high?


--
Clark Martin
Redwood City, CA, USA
Macintosh / Internet Consulting

I'm a designated driver on the Information Super Highway

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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Jeffrey Engle



On Mar 8, 2010, at 1:58 PM, Clark Martin wrote:


On 3/8/10 1:31 PM, Jeffrey Engle wrote:

Ok, being the initiator of this fine thread... someone please tell  
me if

this will work (as most of this stuff is over my head anyway:-)
I have a new Airport extreme (dual band) on the wall that is  
currently
my main access to the internet for all computers, ipods etc. Now,  
what I

want to do is get an older (space ship) airport extreme, and it will
join my existing network wirelessly, then with a connected cantenna
(connected to the rear antenna port) shoots via line of sight to my
sisters front room window, allowing her to connect via her macbook.  
Will

this work? Jeff



One problem with this lashup is that the relay AEBS may or may not  
get a strong enough connection to the main AEBS.  That is because  
all it's WiFi traffic would be going through the Cantenna.  While it  
is a directional antenna there is still signal pickup around it in  
all directions.  But whether it will be strong enough you won't know  
until you try it.  If you can use an Ethernet cable to connect the  
two AEBSs then this won't be a problem.


I had thought you didn't have clear line of sight to the other  
mobile home, that other mobile homes are in the way.  Or are you  
planning on mounting the cantenna very high?


 Well, I didn't think I had line of sight either till I gave it a  
good look at the trailer they'll be moving into... which is perfectly  
in view of her front room window!
I do have an ethernet cable that I could use that's already under the  
floor... this might be the way to go another thought occurred to  
me, I could use the cantenna and AEBS at her end instead of mine?  
pointing the cantenna at my house, that way they could have a network  
locally? This stuff is fun to think about. Jeff


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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Bruce Johnson


On Mar 8, 2010, at 3:10 PM, Jeffrey Engle wrote:

another thought occurred to me, I could use the cantenna and AEBS at  
her end instead of mine? pointing the cantenna at my house, that  
way they could have a network locally? This stuff is fun to think  
about.


That's what I was about to suggest.

--
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University of Arizona
College of Pharmacy
Information Technology Group

Institutions do not have opinions, merely customs


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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Kyle Hansen
On 3/8/10 10:18 AM, John Musbach johnmusba...@gmail.com wrote:

 On Mon, Mar 8, 2010 at 12:14 PM, iJohn zjboyguard-ggro...@yahoo.com wrote:

 Basically, in lower power access points--like consumer Apple airport
 base stations the signal is broadcast in a circular fashion around the
 base station. But as the power increases, the signal becomes more and
 more narrow until at the highest powers the signal is simply broadcast
 in a line from the access point to the receiving end. At least that's
 how I understand it.
 

Maybe I missed something at the beginning of the thread, but why not just
get a $99 Airport express and use it as a repeater/network extender.  I have
a client that I had to string several of these together to get signal out to
a barn/workshop.  Don't ask.
---
The first time Microsoft produces something that doesn't suck will be
when they start making vacuum cleaners
---



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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Kyle Hansen
On 3/8/10 1:31 PM, Jeffrey Engle macgu...@gmail.com wrote:

 connected to the rear antenna port) shoots via line of sight to my
 sisters front room window, allowing her to connect via her macbook.
 Will this work? Jeff

How far is her window?
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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Jeffrey Engle


50-60 yards? just a guess. Jeff

On Mar 8, 2010, at 5:19 PM, Kyle Hansen wrote:


On 3/8/10 1:31 PM, Jeffrey Engle macgu...@gmail.com wrote:


connected to the rear antenna port) shoots via line of sight to my
sisters front room window, allowing her to connect via her macbook.
Will this work? Jeff


How far is her window?
---
The first time Microsoft produces something that doesn't suck will be
when they start making vacuum cleaners
---



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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Kyle Hansen
On 3/8/10 5:21 PM, Jeffrey Engle macgu...@gmail.com wrote:

 
 50-60 yards? just a guess. Jeff

Cantennae from her side pointed at your wifi would work.  I got one over a
hundred yards to a park I sit at and write.
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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Jeffrey Engle




On Mar 8, 2010, at 1:58 PM, Clark Martin wrote:

One problem with this lashup is that the relay AEBS may or may not  
get a strong enough connection to the main AEBS.  That is because  
all it's WiFi traffic would be going through the Cantenna.  While it  
is a directional antenna there is still signal pickup around it in  
all directions.  But whether it will be strong enough you won't know  
until you try it.  If you can use an Ethernet cable to connect the  
two AEBSs then this won't be a problem.



Hey Clark, If I hook the two AEBS's up together like you said, I  
should see them both in airport utility, right? then I want to  
configure the one with the cantenna to simply extend my network? OR  
join my network which one is better? Jeff


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Re: Airport extreme - How to extend my network?

2010-03-08 Thread Ralph Green
On Mon, 2010-03-08 at 11:54 -0500, Dan wrote:
 At 11:21 AM -0500 3/8/2010, John Musbach wrote:
 On Mon, Mar 8, 2010 at 3:52 AM, Ralph Green sfrea...@sbcglobal.net wrote:
 Higher power may not be the right answer.  I helped run the wireless
   network for a large conference.  The network expert who was in charge
   explained that higher power sometimes causes worse performance.  The
   company who had been hired to setup our network had brought in high
   power access points and the performance was terrible.
 
 Not only that, but IIRC higher power means a thinner broadcast radius
 as well--eventually becoming strictly line of sight.
 
 I can see where a client computer could have problems if it's too 
 close to a high powered WAP, by being overwhelmed etc.  But it would 
 have to be darned close.  Never heard of lower performance etc.  No 
 idea where you'all are getting that.  cite?
Howdy,
  This is anecdotal, but I did observe it first hand.   At the 2008
PyCon, the wireless network performance was very bad at first.  Our head
network guy made 2 changes.  He changed the channels on some of the
access points.  The wireless contractor had set them all up on the same
channel.  Our guy also lowered the power on the access points.  He told
me that both changes were needed.  The higher power was causing multiple
problems, he said.  I did not give a lot of details before, because I
don't know them.  But, our wireless network worked much better after
both changes were made.
  The rooms were pretty big, and so people were not always close to the
access points.
Good day,
Ralph


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Re: Airport extreme - How to extend my network?

2010-03-06 Thread iJohn
On Fri, Mar 5, 2010 at 8:26 PM, Jeffrey Engle macgu...@gmail.com wrote:
 So, here's the deal.. I'd like very much to extend my network. Is there a
 way to do this? I use a current Airport Extreme Base Station mounted high on
 my wall inside my 14x55 mobile home and I'd like to share my internet with
 my niece who lives in another mobile home 75 yards give or take away...

75 yards!?!?!?!  with 802.11g !?!?!?!  :-) ~~! ROTHF LMAO !~~ :-)

BTW, are you sure your niece is connecting to *your* network. You ARE
using the highest level of wireless security you can, aren't you?
(Hopefully WPA2). And non-trivial shared keys? (You can generate a
random enough key by using tools on the Internet. For example,
https://www.grc.com/passwords.htm

 currently she gets about 2 bars on her macbook. Is there a way of getting
 her 4 bars? by mounting some kind of antenna on the outside of the house? if
 so, where would I plug it into?

It's amazing (to me) that she manages to get a signal as strong as
that given the distance and the obstructions between your niece and
your router. Probably a result of having mounting it high up on your
wall. Again, I hope you are doing the most you can to secure this
network because if the signal is that strong at that distance it's
also a potential temptation to anyone else in a 75 yard radius (as in
circle) of your home.

You didn't say which flavor/version/vintage of the Airport Extreme you
are using. But IIRC all of them are sealed models with the antennas
inside the case. You'd have to open the case (voiding any warranty)
and then fiddle around with the internal antenna connectors to mount
an external. Is that really a route you want to try to take?

As for the previous suggestion to try using Wireless Distribution
System (WDS) you should first understand that, depending on how it is
set up, WDS would probably cut your throughput by half.
http://en.wikipedia.org/wiki/Wireless_Distribution_System

But even skipping the potential throughput hit, I wasn't at all clear
how WDS could be useful in your situation. Certainly you wouldn't want
to try to mount an intermediate repeater unit outside of your
respective homes, would you??? How would you be able to secure it?

Don't know if they will help but here are some links to some generic
wireless usage tutorials.

How To Fix Your Wireless Network - Part 1
http://www.smallnetbuilder.com/content/view/30182/98/

How To Fix Your Wireless Network - Part 2: Site Surveying
http://www.smallnetbuilder.com/content/view/30198/98/

How To Fix Your Wireless Network - Part 3: Increasing Coverage
http://www.smallnetbuilder.com/wireless/wireless-basics/30225-how-to-fix-your-wireless-network-part-3-increasing-coverage

How To Fix Your Wireless Network - Part 4: Antennas
http://www.smallnetbuilder.com/wireless/wireless-basics/30546-how-to-fix-your-wireless-network-part-4-antennas

-irrational john

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Re: Airport extreme - How to extend my network?

2010-03-06 Thread Dan

At 11:11 AM -0500 3/6/2010, iJohn wrote:

On Fri, Mar 5, 2010 at 8:26 PM, Jeffrey Engle macgu...@gmail.com wrote:

 So, here's the deal.. I'd like very much to extend my network. Is there a
 way to do this? I use a current Airport Extreme Base Station mounted high on
 my wall inside my 14x55 mobile home and I'd like to share my internet with
 my niece who lives in another mobile home 75 yards give or take away...


75 yards!?!?!?!  with 802.11g !?!?!?!  :-) ~~! ROTHF LMAO !~~ :-)


Companies such as SMC make higher powered WAPs that could be used to 
bridge such distances with no problemo.


A burried cat5 would be faster/cheaper tho.

- Dan.
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Re: Airport extreme - How to extend my network?

2010-03-06 Thread iJohn
On Sat, Mar 6, 2010 at 12:31 PM, Dan dantear...@gmail.com wrote:
 Companies such as SMC make higher powered WAPs that could be used to bridge
 such distances with no problemo.


Perhaps, but what do they cost? My perhaps incorrect assumption is
that once you leave the realm of basic home networking routers/WAPs
the prices jump to another range rather quickly. (Though perhaps you
could get something for 802.11g which was previously owned for less
money now that the move to 802.11n is (possibly) happening).

Folks keep saying there are higher power WAPs out there. I'd
appreciate it if they would also include a few model numbers so we
could get an idea what price points and hardware specs they are
thinking of.

 A buried cat5 would be faster/cheaper tho.

Amen to that! Wired still always beats wireless in lots of ways. Not
as convenient though. Especially if you're trying to route the cable
through a trailer park. Besides being a PIA lot of work to do even
only somewhat properly the owner of the trailer park might not be as
supportive of this project as one might hope for. (Well, then again
maybe the OP is the owner? ;-)

-irrational john

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Re: Airport extreme - How to extend my network?

2010-03-06 Thread Jeffrey Engle




On Mar 6, 2010, at 10:11 AM, iJohn wrote:


On Sat, Mar 6, 2010 at 12:31 PM, Dan dantear...@gmail.com wrote:
Companies such as SMC make higher powered WAPs that could be used  
to bridge

such distances with no problemo.



Perhaps, but what do they cost? My perhaps incorrect assumption is
that once you leave the realm of basic home networking routers/WAPs
the prices jump to another range rather quickly. (Though perhaps you
could get something for 802.11g which was previously owned for less
money now that the move to 802.11n is (possibly) happening).

Folks keep saying there are higher power WAPs out there. I'd
appreciate it if they would also include a few model numbers so we
could get an idea what price points and hardware specs they are
thinking of.
Yes, that would be cool... to refresh here, the equipment I'm using  
currently is the Airport extreme base station (current).



A buried cat5 would be faster/cheaper tho.


Amen to that! Wired still always beats wireless in lots of ways. Not
as convenient though. Especially if you're trying to route the cable
through a trailer park. Besides being a PIA lot of work to do even
only somewhat properly the owner of the trailer park might not be as
supportive of this project as one might hope for. (Well, then again
maybe the OP is the owner? ;-)

Nope, I'm just a renter:-) Jeff


-irrational john

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Re: Airport extreme - How to extend my network?

2010-03-06 Thread Dan

At 1:11 PM -0500 3/6/2010, iJohn wrote:

On Sat, Mar 6, 2010 at 12:31 PM, Dan dantear...@gmail.com wrote:

 Companies such as SMC make higher powered WAPs that could be used to bridge

  such distances with no problemo.

Perhaps, but what do they cost? My perhaps incorrect assumption is
that once you leave the realm of basic home networking routers/WAPs
the prices jump to another range rather quickly. (Though perhaps you
could get something for 802.11g which was previously owned for less
money now that the move to 802.11n is (possibly) happening).

Folks keep saying there are higher power WAPs out there. I'd
appreciate it if they would also include a few model numbers so we
could get an idea what price points and hardware specs they are
thinking of.


Google is your friend.  Looks like they start at around $40 and quite 
a few vendors make 'em, beyond SMC.


http://www.lmgtfy.com/?q=home+office+router+high+power

The metric to look for is the transceiver's power.  Indoor/home units 
typically transmit only 50 milliWatts.  Serious outdoor units do 100 
to 800 milliWatts.  Something along the lines of 200 mW is probably 
about right for this application.


- Dan.
--
- Psychoceramic Emeritus; South Jersey, USA, Earth.

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Re: Airport extreme - How to extend my network?

2010-03-05 Thread Clark Martin

On 3/5/10 5:26 PM, Jeffrey Engle wrote:

So, here's the deal.. I'd like very much to extend my network. Is
there a way to do this? I use a current Airport Extreme Base Station
mounted high on my wall inside my 14x55 mobile home and I'd like to
share my internet with my niece who lives in another mobile home 75
yards give or take away... currently she gets about 2 bars on her
macbook. Is there a way of getting her 4 bars? by mounting some kind of
antenna on the outside of the house? if so, where would I plug it into?
I need my wifi to be completely independent of my home computers (G5 
G4 mdd). TIA Jeff


Can you mount the base station so it has a view out a window to the 
other mobile home.  Eliminating one metal wall would certainly help. 
Frankly she is getting a pretty strong signal right now considering how 
far away she is.  You might look into setting up an Airport Express as a 
WDS relay at her end.  With your Extreme and her Express both mounted 
near windows so they have a good line of sight connection it ought to 
work pretty well.


--
Clark Martin
Redwood City, CA, USA
Macintosh / Internet Consulting

I'm a designated driver on the Information Super Highway

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Re: Airport extreme - How to extend my network?

2010-03-05 Thread Jeffrey Engle


On Mar 5, 2010, at 6:19 PM, Clark Martin wrote:


On 3/5/10 5:26 PM, Jeffrey Engle wrote:

So, here's the deal.. I'd like very much to extend my network. Is
there a way to do this? I use a current Airport Extreme Base Station
mounted high on my wall inside my 14x55 mobile home and I'd like to
share my internet with my niece who lives in another mobile home 75
yards give or take away... currently she gets about 2 bars on her
macbook. Is there a way of getting her 4 bars? by mounting some  
kind of
antenna on the outside of the house? if so, where would I plug it  
into?
I need my wifi to be completely independent of my home computers  
(G5 

G4 mdd). TIA Jeff


Can you mount the base station so it has a view out a window to the  
other mobile home.  Eliminating one metal wall would certainly help.  
Frankly she is getting a pretty strong signal right now considering  
how far away she is.  You might look into setting up an Airport  
Express as a WDS relay at her end.  With your Extreme and her  
Express both mounted near windows so they have a good line of sight  
connection it ought to work pretty well.


Well, for one, there is at least 2 mobile homes between us so line of  
sight is out of the question I think... It would be cool if there was  
something that I could attach to the outside of the house up high that  
would work like an airport express to extend the network I would  
hate to use an airport express that way simply because it would  
literally melt down in the summer months. thinking. Jeff


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Re: Airport extreme - How to extend my network?

2010-03-05 Thread Jeffrey Engle



On Mar 5, 2010, at 7:39 PM, Clark Martin wrote:


On 3/5/10 7:23 PM, Jeffrey Engle wrote:


On Mar 5, 2010, at 6:19 PM, Clark Martin wrote:


On 3/5/10 5:26 PM, Jeffrey Engle wrote:

So, here's the deal.. I'd like very much to extend my network. Is
there a way to do this? I use a current Airport Extreme Base  
Station

mounted high on my wall inside my 14x55 mobile home and I'd like to
share my internet with my niece who lives in another mobile home 75
yards give or take away... currently she gets about 2 bars on her
macbook. Is there a way of getting her 4 bars? by mounting some  
kind of
antenna on the outside of the house? if so, where would I plug it  
into?
I need my wifi to be completely independent of my home computers  
(G5 

G4 mdd). TIA Jeff


Can you mount the base station so it has a view out a window to the
other mobile home. Eliminating one metal wall would certainly help.
Frankly she is getting a pretty strong signal right now considering
how far away she is. You might look into setting up an Airport  
Express

as a WDS relay at her end. With your Extreme and her Express both
mounted near windows so they have a good line of sight connection it
ought to work pretty well.

Well, for one, there is at least 2 mobile homes between us so line  
of
sight is out of the question I think... It would be cool if there  
was
something that I could attach to the outside of the house up high  
that

would work like an airport express to extend the network I would
hate to use an airport express that way simply because it would
literally melt down in the summer months. thinking. Jeff

You could still try the Express.  To test it, put your Extreme in  
the window (the window will still help, even with other homes in the  
line of sight.  Then hold your niece's computer in the window to see  
how strong a signal you get.  If the reception is good then putting  
an Express in her window would relay from your Extreme to her laptop.


Apple's Airport Express is the only WDS relay I've used or even know  
about but there (must be) others out there.  The express uses only  
it's internal antennas.  But some other products likely allow for an  
external antenna.


Keep in mind that you want to minimize any antenna cable length, at  
2.4 GHz a cable eats up signal strength fast.  I have a WiFi antenna  
that, IIRC, has a gain of 9 dB but it's 4-5' cable looses about 3-4  
dB.


   Great information looks like an airport express is gonna be in  
the up coming budget:-) I have one already but airtunes is pigging it.  
Jeff


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Re: Airport extreme - How to extend my network?

2010-03-05 Thread Peter Kim
You can also setup some wireless routers as a bridge, through firmware
settings.  A used wireless router is probably cheaper, though not as compact
and neat.  Just out of speculation, 75 yards seems like a good distance to
cover, for a consistent and reliable signal.  What happens when the wind
blows?  You should use your current express to test this out.  You might
need to spend some money on a nice Cisco wireless router? Lots of signal
power- you can light up the whole neighborhood.

On Fri, Mar 5, 2010 at 9:50 PM, Jeffrey Engle macgu...@gmail.com wrote:



 On Mar 5, 2010, at 7:39 PM, Clark Martin wrote:

  On 3/5/10 7:23 PM, Jeffrey Engle wrote:


 On Mar 5, 2010, at 6:19 PM, Clark Martin wrote:

  On 3/5/10 5:26 PM, Jeffrey Engle wrote:

 So, here's the deal.. I'd like very much to extend my network. Is
 there a way to do this? I use a current Airport Extreme Base Station
 mounted high on my wall inside my 14x55 mobile home and I'd like to
 share my internet with my niece who lives in another mobile home 75
 yards give or take away... currently she gets about 2 bars on her
 macbook. Is there a way of getting her 4 bars? by mounting some kind of
 antenna on the outside of the house? if so, where would I plug it into?
 I need my wifi to be completely independent of my home computers (G5 
 G4 mdd). TIA Jeff


 Can you mount the base station so it has a view out a window to the
 other mobile home. Eliminating one metal wall would certainly help.
 Frankly she is getting a pretty strong signal right now considering
 how far away she is. You might look into setting up an Airport Express
 as a WDS relay at her end. With your Extreme and her Express both
 mounted near windows so they have a good line of sight connection it
 ought to work pretty well.

  Well, for one, there is at least 2 mobile homes between us so line of
 sight is out of the question I think... It would be cool if there was
 something that I could attach to the outside of the house up high that
 would work like an airport express to extend the network I would
 hate to use an airport express that way simply because it would
 literally melt down in the summer months. thinking. Jeff

  You could still try the Express.  To test it, put your Extreme in the
 window (the window will still help, even with other homes in the line of
 sight.  Then hold your niece's computer in the window to see how strong a
 signal you get.  If the reception is good then putting an Express in her
 window would relay from your Extreme to her laptop.

 Apple's Airport Express is the only WDS relay I've used or even know about
 but there (must be) others out there.  The express uses only it's internal
 antennas.  But some other products likely allow for an external antenna.

 Keep in mind that you want to minimize any antenna cable length, at 2.4
 GHz a cable eats up signal strength fast.  I have a WiFi antenna that, IIRC,
 has a gain of 9 dB but it's 4-5' cable looses about 3-4 dB.

Great information looks like an airport express is gonna be in the
 up coming budget:-) I have one already but airtunes is pigging it. Jeff


 --
 You received this message because you are a member of G-Group, a group for
 those using G3, G4, and G5 desktop Macs - with a particular focus on Power
 Macs.
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 netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml
 To post to this group, send email to g3-5-list@googlegroups.com
 For more options, visit this group at
 http://groups.google.com/group/g3-5-list


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