building antennas

yonu · 12-31-2004

ok here is my problem i am atempting to build a omni antenna(sp?) to extend the range of my AP however no matter how i make the antenna i get a weaker signal thatn with the factory antenna on the AP the AP is a D-Link DI-624 any help would be helpful

wrzwaldo · 12-31-2004

http://www.netstumbler.org/forumdisplay.php?f=23

What kind of coax and connectors are you using?

yonu · 12-31-2004

i will have to check i can't remeber the names of them and as for the coax am not sure as i purched the cable witht he ends preinstalled

Airstreamer · 12-31-2004

Quote:

Originally Posted by yonu

ok here is my problem i am atempting to build a omni antenna(sp?) to extend the range of my AP however no matter how i make the antenna i get a weaker signal thatn with the factory antenna on the AP the AP is a D-Link DI-624 any help would be helpful

If I ask you how long one wavelength is at 2.4GHz is, can you tell me?

(Roughly - just use the speed of light. Don't want to get into velocity adjustments for coax/waveguide vs freespace...)

I'm trying to judge what knowledge you already have.. Not trying to be a smart ass...

Are you using plans drawn up by someone else?

Steve

wrzwaldo · 12-31-2004

Quote:

Originally Posted by yonu

i will have to check i can't remeber the names of them and as for the coax am not sure as i purched the cable witht he ends preinstalled

Look on the outer jacket of the coax it is usually printed on it.

yonu · 12-31-2004

ok i will have a look atht eh cable when i get a sec and as for plans yes i was using the plans provided with the cable and ends

yonu · 12-31-2004

ok i just had a chance to look and the calbe has no labeling on it that i can find

yonu · 12-31-2004

sorry i was wrong there is some writing on the cable but it is korean or chinease so i have no idea what kind it is

yonu · 01-01-2005

ok all perhaps this will help i manageds to get the antenna to be equal to the original antenna here is a shot from netstumbler of the 2 antennas stength any help would be appricative

wrzwaldo · 01-01-2005

Quote:

Originally Posted by yonu

ok all perhaps this will help i manageds to get the antenna to be equal to the original antenna here is a shot from netstumbler of the 2 antennas stength any help would be appricative

I would venture to guess your external antenna is providing unity gain.

yonu · 01-01-2005

any thoughts on how to get it abit stronger?

wrzwaldo · 01-01-2005

Quote:

Originally Posted by yonu

any thoughts on how to get it abit stronger?

A quality antenna with quality coax and connectors. Which antenna did you build? Where did you get the kit to build it?

yonu · 01-01-2005

kit was from ebay and i was trying to do a simple coil omi so that i could encase it in a pvc pipe so it doesn't look to odd where it is going

beakmyn · 01-01-2005

Any chance of getting pictures or posting a link to the kit on ebay so we can see what you're working with and then we can help you out. There are multi-national users on this forum that may be able to translate the cable printing also.

yonu · 01-01-2005

ok here is url fro the kit and i will try to get a snapshot of the cable today or tomorrow
http://cgi.ebay.com/ws/eBayISAPI.dll...e=STRK:MEWA:IT

12-31-2004	#1 (permalink)
yonu Registered Member Join Date: Feb 2004 Location: fayetteville NC Posts: 31	building antennas ok here is my problem i am atempting to build a omni antenna(sp?) to extend the range of my AP however no matter how i make the antenna i get a weaker signal thatn with the factory antenna on the AP the AP is a D-Link DI-624 any help would be helpful

01-01-2005	#14 (permalink)
beakmyn root\.workspace\.garbage. Join Date: Aug 2003 Posts: 4,809	Any chance of getting pictures or posting a link to the kit on ebay so we can see what you're working with and then we can help you out. There are multi-national users on this forum that may be able to translate the cable printing also. __________________ Daughter with arms inside shirt: "Daddy I'm not Armish" ┌──────────────────────────────┐ ╞ NS Icons Explained\|et hoc genus omne ╡ └──────────────────────────────┘

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12-31-2004	#2 (permalink)
wrzwaldo I amuse you? Join Date: Dec 2003 Posts: 9,127	http://www.netstumbler.org/forumdisplay.php?f=23 What kind of coax and connectors are you using?

12-31-2004	#3 (permalink)
yonu Registered Member Join Date: Feb 2004 Location: fayetteville NC Posts: 31	i will have to check i can't remeber the names of them and as for the coax am not sure as i purched the cable witht he ends preinstalled

12-31-2004	#6 (permalink)
yonu Registered Member Join Date: Feb 2004 Location: fayetteville NC Posts: 31	ok i will have a look atht eh cable when i get a sec and as for plans yes i was using the plans provided with the cable and ends

12-31-2004	#7 (permalink)
yonu Registered Member Join Date: Feb 2004 Location: fayetteville NC Posts: 31	ok i just had a chance to look and the calbe has no labeling on it that i can find

12-31-2004	#8 (permalink)
yonu Registered Member Join Date: Feb 2004 Location: fayetteville NC Posts: 31	sorry i was wrong there is some writing on the cable but it is korean or chinease so i have no idea what kind it is

01-01-2005	#11 (permalink)
yonu Registered Member Join Date: Feb 2004 Location: fayetteville NC Posts: 31	any thoughts on how to get it abit stronger?

01-01-2005	#13 (permalink)
yonu Registered Member Join Date: Feb 2004 Location: fayetteville NC Posts: 31	kit was from ebay and i was trying to do a simple coil omi so that i could encase it in a pvc pipe so it doesn't look to odd where it is going

01-01-2005	#15 (permalink)
yonu Registered Member Join Date: Feb 2004 Location: fayetteville NC Posts: 31	ok here is url fro the kit and i will try to get a snapshot of the cable today or tomorrow http://cgi.ebay.com/ws/eBayISAPI.dll...e=STRK:MEWA:IT