$34.99 US Robotics PCMCIA 802.11b NIC

TechnoGecko · 06-10-2002

http://www.tigerdirect.com/applicati...p?sku=u13-4014

Not quite as good as the Actiontec card from Frys for $29, but close. However, its also a rebate deal which means you get your money three years from now. Oh well, just posting for those of you in need a card.

-Jason
TechnoGecko
Jason@Geckobox.net

blackwave · 06-10-2002

I bought my USR2410 a few weeks ago also from Fry's after reading:
TIntruder's Good Deal of the Day
http://forums.netstumbler.com/showth...highlight=2410

...Though after going back yesterday to pick up a few of the Actiontec's I noticed that the USR2410 little rebate banners were no longer there, but there were still around 50 of these babies on the shelves. Strange because I thought the rebate ended in July... Not too sure, but if you plan to get one at Fry's soon for this great deal, I suggest you ask the clerk first before buying it, so you don't have to return it later because they forgot to give you the rebate slip.

lincomatic's CHEAP PCMCIA 128-bit NIC
http://forums.netstumbler.com/showth...highlight=2410
Also had another available source.

For those interested you can check out:
lincomatic'sInside the US Robotics 2410 Antenna Cover
http://www.geocities.com/lincomatic/usr2410.html
from:
US Robotics USR2410 PC card ??
http://forums.netstumbler.com/showth...highlight=2410

lincomatic · 06-10-2002

if anyone wants to hook up an external antenna to one of these babies, here is a detailed description of what to do:

http://www.guerrilla.net/reference/8...mod/index.html

from thread:
http://forums.netstumbler.com/showth...4530#post14530

IL GIACO · 06-24-2002

[quote]Originally posted by lincomatic
[b]if anyone wants to hook up an external antenna to one of these babies, here is a detailed description of what to do:

http://www.guerrilla.net/reference/8...mod/index.html

I've added the sma connector (I didn't found that the gnet people used).
Other probs they talk about 150pF smd capacitor, but I've found only 100 and 220pF, I've used the 220.

All seems to work correctly, without ext antenna the card continue to receive a lot signal, but I cannot verify it cause I don't find a sniffer that support this card (apsniff tell me that this is not a prims2 card).

PS: the cable used in pigtail is rg174 ?

lincomatic · 06-25-2002

[quote]Originally posted by IL GIACO
[b]

Quote:

Originally posted by lincomatic
if anyone wants to hook up an external antenna to one of these babies, here is a detailed description of what to do:

http://www.guerrilla.net/reference/8...mod/index.html

I've added the sma connector (I didn't found that the gnet people used).
Other probs they talk about 150pF smd capacitor, but I've found only 100 and 220pF, I've used the 220.

All seems to work correctly, without ext antenna the card continue to receive a lot signal, but I cannot verify it cause I don't find a sniffer that support this card (apsniff tell me that this is not a prims2 card).

PS: the cable used in pigtail is rg174 ?

i tried apsniff and it didn't work even thought IT IS a prism2 card.
but kismet works great with it.

the reason it still picks up lots of signal without the antenna is the guerilla.net guys didn't disconnect 1 of the built in antennae.
i've updated my USR2410 web page with the info i've discovered at

http://www.geocities.com/lincomatic/usr2410.html

if you want to know how the manufacturer actually handles the antenna jack; they disconnect both internal antennae, unlike the guerilla.net guys.

IL GIACO · 06-25-2002

Quote:

Originally posted by lincomatic

if you want to know how the manufacturer actually handles the antenna jack; they disconnect both internal antennae, unlike the guerilla.net guys.

thanks.

What kind of cable I can use with sma connectors ?
I've found only the RG174, but with it I lost too much signal.

lincomatic · 06-25-2002

Quote:

Originally posted by IL GIACO

thanks.

What kind of cable I can use with sma connectors ?
I've found only the RG174, but with it I lost too much signal.

try LMR-240 instead. it's the same thickness as RG-8X but only loses 12.9dB/100ft @ 2500MHz. should be decent for short to medium runs. i don't know the loss values for RG174.

pigtails for orinoco cards often use LMR-100A because it's very thin but that loses 40dB/100ft so it's only good for very short cables.

IL GIACO · 06-25-2002

Quote:

Originally posted by lincomatic

try LMR-240 instead. it's the same thickness as RG-8X but only loses 12.9dB/100ft @ 2500MHz. should be decent for short to medium runs. i don't know the loss values for RG174.

LMR cables doesn't exist in Italy, RG 174 I think it's the same as RG58, only more thick and with teflon outside.
It's a big problem to find components, first 50ohm cable, for example the capacitor that I used to modify my usr2413 are bigger as capacity (220pF) and bigger as size! I must soldered them in the short side (hope it will be easier to use elettrolitics).
Another question: how have you get the plastic off ?

thanks

lincomatic · 06-25-2002

Quote:

Originally posted by IL GIACO

LMR cables doesn't exist in Italy, RG 174 I think it's the same as RG58, only more thick and with teflon outside.
It's a big problem to find components, first 50ohm cable, for example the capacitor that I used to modify my usr2413 are bigger as capacity (220pF) and bigger as size! I must soldered them in the short side (hope it will be easier to use elettrolitics).
Another question: how have you get the plastic off ?

thanks

that's too bad. there are several vendors that have LMR on the internet. maybe they can ship to italy.

are you sure you connected the capacitors correctly? the contacts are on the ends. if you solder them on the short side, won't it just short-circuit them?

for this kind of circuit i don't think electrolytics are a good idea.
i'm not sure of the effects of the higher capacitance but it might affect the performance. also, if you didn't disconnect the 2nd internal antenna as i illustrated in my web page, the diversity circuit might get confused and lower performance, although i have not tested...i haven't had the time to obtain the parts to do the mod yet.

since you already soldered the parts on, didn't you get the cover off? i just used a sharp xacto knife (it's like a scalpel) and sliced along the seam, then bent the covers back.

IL GIACO · 06-25-2002

Quote:

Originally posted by lincomatic

are you sure you connected the capacitors correctly? the contacts are on the ends. if you solder them on the short side, won't it just short-circuit them?

since you already soldered the parts on, didn't you get the cover off? i just used a sharp xacto knife (it's like a scalpel) and sliced along the seam, then bent the covers back.

I've soldered in the ends, but the capacitors are routed (cause in the normal position their sides touch near tracks).

Mine had very hard plastic, I must used the solder on the down side of the antenna cover.
While Up I only did the 5 holes without do the big drill.
The problem here was that the connector that I've found was the square based sma (without feet) , fortunately I had some 1mm copper wire that I used to build the Helical Aereal antenna.
I've used the copper to make feet to the sma connector.

The work isn't so much clean, but it works, today I try to disconnect the second internal antenna.

ciao

lincomatic · 06-25-2002

Quote:

Originally posted by IL GIACO

Mine had very hard plastic, I must used the solder on the down side of the antenna cover.

hmm. the plastic on mine is very soft and flimsy. i guess there are different versions of it. i wish i had your time better...it would probably hold up the weight of a cable better.

please let us know if disconnecting the 2nd antenna works better or not.

thanks!

IL GIACO · 06-25-2002

Quote:

Originally posted by lincomatic

please let us know if disconnecting the 2nd antenna works better or not.

thanks!

I've disconnected the 2nd antenna, but at the moment I am without sniffer (I am using openbsd and dstumbler doesn't work with usr2410, I am also trying to compiling kismet but without success).
The Only thing that I noticed is:
At 200 meters from the access point if I disconnect the pringles cantenna, I'cant ping the AP.
Instead near the AP (in the room) I've signal.

...I hoped that was more easy to make up a link with points more distant than 2km

06-10-2002	#1 (permalink)
TechnoGecko Expert Stumbler Join Date: Jun 2002 Location: Scottsdale, AZ Posts: 75	$34.99 US Robotics PCMCIA 802.11b NIC http://www.tigerdirect.com/applicati...p?sku=u13-4014 Not quite as good as the Actiontec card from Frys for $29, but close. However, its also a rebate deal which means you get your money three years from now. Oh well, just posting for those of you in need a card. -Jason TechnoGecko Jason@Geckobox.net

06-10-2002	#2 (permalink)
blackwave Do I look like I'm joking Join Date: Apr 2002 Location: SoCal, OC Posts: 4,507	I bought my USR2410 a few weeks ago also from Fry's after reading: TIntruder's Good Deal of the Day http://forums.netstumbler.com/showth...highlight=2410 ...Though after going back yesterday to pick up a few of the Actiontec's I noticed that the USR2410 little rebate banners were no longer there, but there were still around 50 of these babies on the shelves. Strange because I thought the rebate ended in July... Not too sure, but if you plan to get one at Fry's soon for this great deal, I suggest you ask the clerk first before buying it, so you don't have to return it later because they forgot to give you the rebate slip. lincomatic's CHEAP PCMCIA 128-bit NIC http://forums.netstumbler.com/showth...highlight=2410 Also had another available source. For those interested you can check out: lincomatic'sInside the US Robotics 2410 Antenna Cover http://www.geocities.com/lincomatic/usr2410.html from: US Robotics USR2410 PC card ?? http://forums.netstumbler.com/showth...highlight=2410 __________________ -=BW=-

06-10-2002	#3 (permalink)
lincomatic Squaaawk! WiFi! WiFi! Join Date: Apr 2002 Location: Tinsel Town Posts: 1,682	if anyone wants to hook up an external antenna to one of these babies, here is a detailed description of what to do: http://www.guerrilla.net/reference/8...mod/index.html from thread: http://forums.netstumbler.com/showth...4530#post14530 __________________ ~lincomatic

06-24-2002	#4 (permalink)
IL GIACO Registered Member Join Date: May 2002 Posts: 12	[quote]Originally posted by lincomatic [b]if anyone wants to hook up an external antenna to one of these babies, here is a detailed description of what to do: http://www.guerrilla.net/reference/8...mod/index.html I've added the sma connector (I didn't found that the gnet people used). Other probs they talk about 150pF smd capacitor, but I've found only 100 and 220pF, I've used the 220. All seems to work correctly, without ext antenna the card continue to receive a lot signal, but I cannot verify it cause I don't find a sniffer that support this card (apsniff tell me that this is not a prims2 card). PS: the cable used in pigtail is rg174 ? __________________ Se puo' essere ferito, puo' essere ucciso!

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