Please help me identify this antenna connector

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jin408
jin408's picture
Please help me identify this antenna connector

So I just picked up a 3500L and was looking into adding external antennas. I found the old thread with an ebay link selling a kit. I emailed the seller and he told me the connectors on the pc board is not the same and the u.fl pig tail will not work.

 

So what type is it? it looks slightly taller and bigger in diameter than the Linksys WRT320N that I also opened.

Thanks

 

Peter Redmer
Peter Redmer's picture
We received a message on

We received a message on Twitter stating that these are U.FL connectors, more info here:

http://www.dd-wrt.com/phpBB2/viewtopic.php?p=241381

Not sure if this is correct, but should be helpful info regardless!

jin408
jin408's picture
thanks for the quick reply. I

thanks for the quick reply. I already saw that thread as well as the one on myopenrouter.com. I actually tried physically installing the u.fl pig tail from a Linksys router onto the on-board connector pictured, it didn't seem to fit. Then again, I didn't press very hard. I'll try again later today.

Thanks

fabiobuhr
fabiobuhr's picture
I found this info on the net:

I found this info on the net:

"Hirose U.FL connectors are protected by patents[2] and trademarks. However, compatible connectors are on the market under names such as IPEX, IPAX, IPX.[3], MHF, and AMC.[4] connectors."

source: http://en.wikipedia.org/wiki/Hirose_U.FL

jin408
jin408's picture
cool. thanks. I asked a co

cool. thanks. I asked a co-worker and he said it's probably a mini-SMP connector. I will measure the ID and OD when I get home to verify.

fabiobuhr
fabiobuhr's picture
nice, I'm interested in the

nice, I'm interested in the results, I jut got my 3500L yesterday and probably will upgrade the antenas too. When you buy the conectors please let me know.

fabiobuhr
fabiobuhr's picture
one more datasheet for

one more datasheet for consultation about different U.FL conectors: http://www.hirose.co.jp/cataloge_hp/e32119372.pdf

jin408
jin408's picture
I have to take another look

I have to take another look but it doesn't look like a u.fl. I'm considering just soldering a bare pigtail to it.

from the picture, the connector on the wnr3500l board looks like the solder points are on the corners where the u.fl spec states the solder points are on the side.

it might be easier going the soldering route.

Voodoo Daddy
Voodoo Daddy's picture
They are NOT u.fl. I

They are NOT u.fl. I purchased the antenna kits from ebay and they do not fit. I had to solder the bare pigtail to the board.

jin408
jin408's picture
thanks for confirming that

thanks for confirming that these are not u.fl.

Voodoo Daddy
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(No subject)

jin408
jin408's picture
thanks for the pics! That's

thanks for the pics! That's what I plan on doing. the only question left is antenna. I found some antennas on ebay and they only list "b/g" in description. I emailed the seller asking if these will work with "N".

SScorpio
SScorpio's picture
Thank you for the pictures.

Thank you for the pictures. Does it matter which wire you solder to the contact point on the board and the connector?

I'm still waiting for my kit, but isn't one of the wires connected to the center pin, and the other to the outer part that the antenna screws on to?

fabiobuhr
fabiobuhr's picture
Some closer pictures to get

Some closer pictures to get the question going:

 

Any Ideas? I don't want to solder either, just use the supplied connectors, thanks all..

jin408
jin408's picture
well, as far as I can tell no

well, as far as I can tell no one seems to know what type of contact the connector is. My co-worker thought it was a mini-smp, but I can't seem to find anyone that sells a pre-wired pig-tail.

Anyway, I'm gonna solder the wires like the picture. I believe what you're seeing is the co-axial shield soldered to the outside of the connector. the actual conductor is soldered to the a point somewhere along the circuit.

this might help. I posted the same question on ddwrt and was directed to this thread.

http://www.dd-wrt.com/phpBB2/viewtopic.php?t=57231&postdays=0&postorder=...

jin408
jin408's picture
SScorpio said: Thank you for

SScorpio said: Thank you for the pictures. Does it matter which wire you solder to the contact point on the board and the connector? I'm still waiting for my kit, but isn't one of the wires connected to the center pin, and the other to the outer part that the antenna screws on to?

May I ask what kit you bought? I can find any antenna greater than 9db that has wireless n listed in the description.

 

Thanks

SScorpio
SScorpio's picture
Here is the antenna kit I

Here is the antenna kit I bought. They are 7db antennas and the router they are for is a Wireless N Netgear. I'm not trying to boost the signal too much so I don't think I'll need anything more powerful that these.

http://cgi.ebay.com/110526781284

Voodoo Daddy
Voodoo Daddy's picture
The shielding is soldered to

The shielding is soldered to the outside of the connector and the center conductor is pushed through the pin hole next to the connector and soldered on the other side of the board.

Leaf
Leaf's picture
These are Murata MM8430-2610

These are Murata MM8430-2610 connectors.

SScorpio
SScorpio's picture
Leaf said: These are Murata

Leaf said: These are Murata MM8430-2610 connectors.

If that's the case here is a catalog with some specs on the connector: http://www.murata.com/catalog/o30e8.pdf

Scroll down to pages 11-16.  Sadly I'm having trouble finding information about the male version of the connector.  Anyone have any ideas?

Leaf
Leaf's picture
The Murata MM8430-2610 mates

The Murata MM8430-2610 mates to MXGS83RK3000 or MXGS83RJ3000. The MM8430-2610 are designed for making measurements and not as antenna connectors.

Leaf
Leaf's picture
http://www.mouser.com/catalog
jin408
jin408's picture
Thanks!!!

Thanks!!!

Personally, I don't think it's worth the time nor the effort to try find a cable or pigtail for this. Soldering seems like the best route. Get some SMA with bare leads and you're good to go.

donald24
donald24's picture
Hi Community!

Hi Community!

Yeah, that's the way I went, too. I ordered three U.FL to R-SMA adapters, just to find out, that the U.FL cables were really hard to push on those connectors (but I really managed that by pushing hard enough ;) but later on, I came to the conclusion, that the inner wire doesn't make contact to the board at all, and thus the connector must be wrong.

So I took my pliers and carefully removed the three connectors from the board, (so I have easier access to the soldering spots), and soldered these wires to the board like VoodooDaddy. Now, having attached three 5dbi-omnidirectionial antennas, signal really is better, but not too much.

I am using the latest tomato-firmware with the router and I think that fiddling with the mW-parameter virtually does nothing  to the wifi-range, can anybody copy this?

Greets,

don

Incognit0
Incognit0's picture
hello guys,

hello guys,

here is my "upgrade" from my WNR3500L : http://bit.ly/ctyUin

Nitha
Nitha's picture
Hallo Incognit0,

Hallo Incognit0,

can u please tell me which antenna you use for your WNR3500L??
And also helpfull is where to get and how to set up it.

Thanks

regards
Nitha

Nitha
Nitha's picture
Incognit0 said: hello guys,

Incognit0 said: hello guys, here is my "upgrade" from my WNR3500L : http://bit.ly/ctyUin

Hallo Incognit0,

can u please tell me which antenna you use for your WNR3500L??
And also helpfull is where to get and how to set up it.

Thanks

regards
Nitha

Incognit0
Incognit0's picture
 

 

Nitha said: Hallo Incognit0, can u please tell me which antenna you use for your WNR3500L?? And also helpfull is where to get and how to set up it. Thanks regards Nitha

 

I'm using three 12db antennas on my WNR3500L, they're working perfect, because I've a big livingroom, for small rooms, you'll need antennas with less boost, some specialists commend antennas with 5-7db for such routers/accesspoints.

I've bought all the stuff at rf-supplier.com

I ordered the antennas and then three pigtails, but the ready-for-use Ufl-to-RP.SMA pigtails won't fit, you've to sold them onto the PCB and you have to cut the old connections to the orig. Panel-antennas on the PCB.

cheers :-)

liukuohao
liukuohao's picture
Dear Incognit0,

Dear Incognit0,

I hope my comment will not be to late for you to take note.

According to your photos of your antenna modification at:

http://bit.ly/ctyUin

You have forgetten to either:

1) Removed the Murata connectors with a pair of pliers cafeful.
This with cut the signal from bridging to the built in antenna on
the edge.

or

Best and fast way is:

2) Drill a small hole to cut the pcb track reaching to the antenna on
the edge. You should cut the tracks any point along the tracks after
the Murata connectors leading to the PCB antennae(at the edge)

If not, the RF signals are flowing out from your external
RP-SMA antennae and internal antennae on the PCB.

Thanks.

Happy modification.

Cheers

Incognit0
Incognit0's picture
liukuohao said: Dear

liukuohao said: Dear Incognit0, I hope my comment will not be to late for you to take note. According to your photos of your antenna modification at: http://bit.ly/ctyUin You have forgetten to either: 1) Removed the Murata connectors with a pair of pliers cafeful. This with cut the signal from bridging to the built in antenna on the edge. or Best and fast way is: 2) Drill a small hole to cut the pcb track reaching to the antenna on the edge. You should cut the tracks any point along the tracks after the Murata connectors leading to the PCB antennae(at the edge) If not, the RF signals are flowing out from your external RP-SMA antennae and internal antennae on the PCB. Thanks. Happy modification. Cheers

Dear liukuohao,

i cutted the signal-line to the PCB-antennas --> http://www.flickr.com/photos/icognit0/4989058434/ i cutted the circuit and then also measured that the PCB-circuit will not have contact to the Murata connector.

Or how do you mean this?

Cheers

liukuohao
liukuohao's picture
 

 

Incognit0 said:

liukuohao said: Dear Incognit0, I hope my comment will not be to late for you to take note. According to your photos of your antenna modification at: http://bit.ly/ctyUin You have forgetten to either: 1) Removed the Murata connectors with a pair of pliers cafeful. This with cut the signal from bridging to the built in antenna on the edge. or Best and fast way is: 2) Drill a small hole to cut the pcb track reaching to the antenna on the edge. You should cut the tracks any point along the tracks after the Murata connectors leading to the PCB antennae(at the edge) If not, the RF signals are flowing out from your external RP-SMA antennae and internal antennae on the PCB. Thanks. Happy modification. Cheers

Dear liukuohao, i cutted the signal-line to the PCB-antennas --> http://www.flickr.com/photos/icognit0/4989058434/ i cutted the circuit and then also measured that the PCB-circuit will not have contact to the Murata connector. Or how do you mean this? Cheers

 

Dear Incognit0,

 

Ok, I might miss this photo shown on flickr.

I have done the right thing by cutting the tracks on both left and right sides,

but, I don't see you have cut the track for the middle one, have you?

Also, the tracks are cut, but I don't you have cut it right through the

track until you can see a hole. But then, you have measured the resistance,

if your multimeter is showing open circuit, then you are ok. You should get

open circuit reading on you multimeter measuring across the capacitor and

the murata connector's signal point.

 

My method is to drill a small hole on the track that is at the edge/boundry

line where it stretches out to meet  the square PCB antenna.

 

Can you see two capacitors, one is before the murata connector and the

other is after the connector. I am not sure whether the pigtail centre core

should be soldered on the capacitor that is after the murata connector?

 

 

Anyway, now that you have modified your router's metamaterial antenna,

did you get a better signal range when router is using external antennae?

 

Cheers.

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