Performace Jump With this?

fblznolimit · 02-16-2004

What kind of Performance jump would I expect with this?

I get like 15% Signal on a free accesspoint near me, inside my home what do I expect this to boost?

Twisted · 02-16-2004

At 8 pounds of boost, figure 110 horsepower.

fblznolimit · 02-16-2004

What do you mean by that? What kind of Singal should I get with this setup with this in my house?

Mr.White · 02-16-2004

Heh. 110 horspower.

Twisted · 02-16-2004

OK, heres the deal,

Think of your wireless card a man, and the antenna as a woman.

Now some guys get along better with some types of women, and not with others, and even with a woman that he really really likes, and for the most part gets along with, sometimes, in the wrong situation, even though they like each other they don't perform well. (wink wink).

Now think of the external antenna as a mistress. You will always get better performance out of the mistress, and there are a number of different ones available, depending on the job that needs to be done (WINK WINK). In some situations you want a really tall one, and sometimes you just need something to get you by. So you have a number of different (ahem) antennas, that will do a different job, and all of them perform differently. (Thank god).

BUT REMEMBER, you never really know what one is going to do until you hook it up, but you can usually get an idea of how well it will work by looking at it. A really good sign is when other wirelees cards start staring at yer antenna.

Bottom line, and external antenna is almost always better than the original, and performance varies by the antenna, and the situation.

I really dunno what came over me.

Thorn · 02-16-2004

Quote:

Originally posted by fblznolimit
What do you mean by that? What kind of Singal should I get with this setup with this in my house?

He's pulling your leg, although I liked it a lot.

The antenna that is shown is rated at 5dB. That means that a given signal should be "boosted" by 5dB. A 3dB increase in signal is a 100% increase over the existing signal.

FYI: The "15%" that your machine is reporting is pretty useless, as there is no reference to compare to (15% of what?)

Don't speak radio? Don't have the foggiest idea what a dB is? Read this.

fblznolimit · 02-16-2004

Like in War Driving, out side, lets say a certain access point is 52db, it will make it around 80db-90db or more right?

wrzwaldo · 02-16-2004

Quote:

Originally posted by fblznolimit
Like in War Driving, out side, lets say a certain access point is 52db, it will make it around 80db-90db or more right?

Yes and No. It just depends (on more things than I care to get into right now). Weather, LOS, and the such. Go read the thread that Thorn posted.

Hint look for the word "this"

WW

Thorn · 02-16-2004

Quote:

Originally posted by fblznolimit
Like in War Driving, out side, lets say a certain access point is 52db, it will make it around 80db-90db or more right?

No. It would make it about 55dB (which is still a 100% signal increase in gain.):

52dBm [signal] + (5dBi [antenna isotopic gain] - 2dBm*) = 55dBm [observed signal]

*Just take my word for it right now. If you want to learn more google for "isotopic", "antenna", "dBi" and "dBd".

fblznolimit · 02-16-2004

The thing is, thast with weather or what ever in EFFECT. LIke a 52DB signal, would it like goto 80-90DB?

Thorn · 02-16-2004

No. Read my last post, directly above yours.

fblznolimit · 02-16-2004

I see, you do not notice that big of a jump in DB but when its in watts, it doubles and more

right? hehe

Eyecannon · 02-17-2004

hay guys, I get 29% but I want 71%. How do I get percent? Hay guys.

Madhadder · 02-17-2004

A nice 2watt Amp. should take care of this nicely

Thorn · 02-17-2004

Quote:

Originally posted by fblznolimit
I see, you do not notice that big of a jump in DB but when its in watts, it doubles and more right? hehe

Yes.

And I have to correct myself from last night: Since signal is stronger as you approach 0, the correct observation would be about -49dBm (which is still a 100% signal increase in gain.) So the corrected equation should be:

-52dBm [signal] + (5dBi [antenna isotopic gain] - 2dBm*) = -49dBm [observed signal]

*Again, the isotopic antenna correction.

I must have been more tired than I thought last night to make such an obvious mistake.

02-16-2004	#4 (permalink)
Mr.White OH such tacos will I give Join Date: Oct 2002 Location: Minnesota Posts: 1,049	Heh. 110 horspower. __________________ A good way to threaten somebody is to light a stick of dynamite. Then you call the guy and hold the burning fuse up to the phone. "Hear that?" you say. "That's dynamite, baby." -Jack Handey

02-16-2004	#7 (permalink)
fblznolimit Registered Member Join Date: Feb 2004 Posts: 47	Like in War Driving, out side, lets say a certain access point is 52db, it will make it around 80db-90db or more right? Last edited by fblznolimit : 02-16-2004 at 09:54 PM.

02-16-2004	#11 (permalink)
Thorn Did you do the math? Join Date: Apr 2002 Location: Villa Straylight Posts: 10,358	No. Read my last post, directly above yours. __________________ Thorn "Read Altas Shrugged. Compare it to today. Repeat as necessary"

02-17-2004	#13 (permalink)
Eyecannon Ward River Join Date: Aug 2002 Location: Santa Monix Posts: 679	hay guys, I get 29% but I want 71%. How do I get percent? Hay guys. __________________ No, officer, YOU are under arrest! http://eyecannon.com/wardrive.html

02-17-2004	#14 (permalink)
Madhadder General "Noob Basher" Join Date: Apr 2002 Location: Munich, Germany Posts: 1,620	A nice 2watt Amp. should take care of this nicely __________________ Legends may sleep, but they never die!!!!

02-16-2004	#2 (permalink)
Twisted Registered Member Join Date: Dec 2003 Posts: 185	At 8 pounds of boost, figure 110 horsepower.

02-16-2004	#3 (permalink)
fblznolimit Registered Member Join Date: Feb 2004 Posts: 47	What do you mean by that? What kind of Singal should I get with this setup with this in my house?

02-16-2004	#5 (permalink)
Twisted Registered Member Join Date: Dec 2003 Posts: 185	OK, heres the deal, Think of your wireless card a man, and the antenna as a woman. Now some guys get along better with some types of women, and not with others, and even with a woman that he really really likes, and for the most part gets along with, sometimes, in the wrong situation, even though they like each other they don't perform well. (wink wink). Now think of the external antenna as a mistress. You will always get better performance out of the mistress, and there are a number of different ones available, depending on the job that needs to be done (WINK WINK). In some situations you want a really tall one, and sometimes you just need something to get you by. So you have a number of different (ahem) antennas, that will do a different job, and all of them perform differently. (Thank god). BUT REMEMBER, you never really know what one is going to do until you hook it up, but you can usually get an idea of how well it will work by looking at it. A really good sign is when other wirelees cards start staring at yer antenna. Bottom line, and external antenna is almost always better than the original, and performance varies by the antenna, and the situation. I really dunno what came over me.

02-16-2004	#10 (permalink)
fblznolimit Registered Member Join Date: Feb 2004 Posts: 47	The thing is, thast with weather or what ever in EFFECT. LIke a 52DB signal, would it like goto 80-90DB?

02-16-2004	#12 (permalink)
fblznolimit Registered Member Join Date: Feb 2004 Posts: 47	I see, you do not notice that big of a jump in DB but when its in watts, it doubles and more right? hehe

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