Edimax Pcmcia External Antenna Mod! - Page 2

lincomatic · 05-14-2004

mish,

since the schematics don't show what we need, pls post zoomed in pics of the areas around the A1 & A2 pads so i can get a better view of where the traces go around them.

from the photo so far, it seems like you can just solder the antenna connections directly to those pads, but i'm not sure if C97 is essential for A2 or not.

actually, if you're not interested in diversity, you can probably get away w/ just attaching your antenna connections at A1, since i don't see any unpopulated pads around there. you could always give it a go first and see what kind of performance you get before trying to dig in further.

the 2 large pads are ground, and the small blob near the C94/C43 markings is *probably* where the signal is.

wrzwaldo · 05-14-2004

Quote:

Originally Posted by lincomatic

mish,

since the schematics don't show what we need, pls post zoomed in pics of the areas around the A1 & A2 pads so i can get a better view of where the traces go around them.

...

mish,

I still have the 78K version of the first one you posted I can resend if needed.

wrzwaldo · 05-14-2004

Quote:

Originally Posted by lincomatic

<flame suit on>
Why the f*k does it seem like a lot of people have bugs up their *sses on this board lately? Are there too many cicadas out or something? ...

Sorry just a quick off topic.

For you that don't know what a cicadas is.

Genera Magicicada & Tibicen. And now AKA Ass Bug!

lincomatic · 05-14-2004

Quote:

Originally Posted by wrzwaldo

Sorry just a quick off topic.

For you that don't know what a cicadas is.

Genera Magicicada & Tibicen. And now AKA Ass Bug!

do you live in the Brood X zone? are they swarming yet? man i wish i had time to go back to maryland to see them ... it was pretty cool 17yrs ago.

fordem · 05-14-2004

Quote:

Originally Posted by lincomatic

mish,

since the schematics don't show what we need, pls post zoomed in pics of the areas around the A1 & A2 pads so i can get a better view of where the traces go around them.

from the photo so far, it seems like you can just solder the antenna connections directly to those pads, but i'm not sure if C97 is essential for A2 or not.

actually, if you're not interested in diversity, you can probably get away w/ just attaching your antenna connections at A1, since i don't see any unpopulated pads around there. you could always give it a go first and see what kind of performance you get before trying to dig in further.

the 2 large pads are ground, and the small blob near the C94/C43 markings is *probably* where the signal is.

C97 is essential for A2 and C94 is essential for A1 - look closely you can have C37 or C94, but not both - one of the pads is common.

lincomatic · 05-14-2004

Quote:

Originally Posted by fordem

C97 is essential for A2 and C94 is essential for A1 - look closely you can have C37 or C94, but not both - one of the pads is common.

the problem is it's so fuzzy i can't make out the traces @ the top. i guess all he needs to do is hook up @ A1 and ignore A2 (assuming C94 is currently populated)?

wrzwaldo · 05-14-2004

Here is the net friendly version of the original.

fordem · 05-14-2004

Quote:

Originally Posted by wrzwaldo

Here is the net friendly version of the original.

Thanks waldo - that shows clearly what I was saying - C37 & C94 share a solder pad, you can have one or the other, and in this case C37 is present - it should be fairly simple to unsolder & resolder it though - if you have a steady hand and a fine tipped soldering iron.

lincomatic · 05-14-2004

Quote:

Originally Posted by fordem

Thanks waldo - that shows clearly what I was saying - C37 & C94 share a solder pad, you can have one or the other, and in this case C37 is present - it should be fairly simple to unsolder & resolder it though - if you have a steady hand and a fine tipped soldering iron.

ok, NOW i can see what you're talking about. i concur ... move it over to C94 bec A1's signal pin is open otherwise.

mish · 05-15-2004

yea about the "flame" this post was my first post on netstumbler forum i didnt think of changing the pic size thats what i was angry about i mean if i do post a pic again ill keep that in mind but anyway enuff of that.

i have edited a segment of the pic is this what it should look like once i have done this mod
p.s if u need extreme quality of this pic look at
http://shr00mz.no-ip.com/public/pcmcia%20001.bmp its 2.2meg 600dpi

fordem · 05-15-2004

Quote:

Originally Posted by mish

i have edited a segment of the pic is this what it should look like once i have done this mod

Yup - that's what it should look like.

wrzwaldo · 05-15-2004

Quote:

Originally Posted by mish

yea about the "flame" this post was my first post on netstumbler forum i didnt think of changing the pic size thats what i was angry about i mean if i do post a pic again ill keep that in mind but anyway enuff of that.

i have edited a segment of the pic is this what it should look like once i have done this mod
p.s if u need extreme quality of this pic look at
http://shr00mz.no-ip.com/public/pcmcia%20001.bmp its 2.2meg 600dpi

One last off topic here.

mish,

I'm not trying to be critical of your upload but rather point out the waste of bandwidth. 600 dpi is a waste for just viewing on your/our monitor. 72 is generally the highest you need for viewing on a monitor. Now if you plan on printing the image then by all means pack in the dpi. Your 2.2meg .bmp is really no better than the pic I posted (for viewing on a monitor). I have also taken the 2.2 megger and dropped it to 72 and it can be viewed here at 92KB. Also if you can convert to jpeg as bmp's are hogs! I hope this helps with the confusion.

WW

mish · 05-15-2004

yea but if you wanna run mspaint and zoom in a little i think you get better results with higher dpi dont you?

wrzwaldo · 05-15-2004

Quote:

Originally Posted by mish

yea but if you wanna run mspaint and zoom in a little i think you get better results with higher dpi dont you?

When you say zoom do you mean increase the image (canvas) size or crop to a selection? I always like to save the initial image with as much resolution as possible. I always edit the image for the intended application. For the web or viewing on monitor I use 72ish 99% of the time. Had you of saved your 2 meg file (in MS Paint) as a jpg the size would have been about 73K. This is a canvas increase and crop. The file size is about 80K. Bottom line, edit for application and for the web save as a jpg for general viewing.

05-14-2004	#16 (permalink)
lincomatic Squaaawk! WiFi! WiFi! Join Date: Apr 2002 Location: Tinsel Town Posts: 1,682	mish, since the schematics don't show what we need, pls post zoomed in pics of the areas around the A1 & A2 pads so i can get a better view of where the traces go around them. from the photo so far, it seems like you can just solder the antenna connections directly to those pads, but i'm not sure if C97 is essential for A2 or not. actually, if you're not interested in diversity, you can probably get away w/ just attaching your antenna connections at A1, since i don't see any unpopulated pads around there. you could always give it a go first and see what kind of performance you get before trying to dig in further. the 2 large pads are ground, and the small blob near the C94/C43 markings is probably where the signal is. __________________ ~lincomatic

05-14-2004	#22 (permalink)
wrzwaldo I amuse you? Join Date: Dec 2003 Posts: 9,147	Here is the net friendly version of the original. Last edited by wrzwaldo : 10-04-2007 at 11:53 AM.

05-15-2004	#25 (permalink)
mish Registered Member Join Date: May 2004 Posts: 14	yea about the "flame" this post was my first post on netstumbler forum i didnt think of changing the pic size thats what i was angry about i mean if i do post a pic again ill keep that in mind but anyway enuff of that. i have edited a segment of the pic is this what it should look like once i have done this mod p.s if u need extreme quality of this pic look at http://shr00mz.no-ip.com/public/pcmcia%20001.bmp its 2.2meg 600dpi Last edited by mish : 05-15-2004 at 03:06 AM.

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05-15-2004	#28 (permalink)
mish Registered Member Join Date: May 2004 Posts: 14	yea but if you wanna run mspaint and zoom in a little i think you get better results with higher dpi dont you?