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PC 5740 Card, external antenna ports?

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EVDOforums.com Forum Index -> EVDO with a Wireless PC Data Card or ExpressCard

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boost
EVDO Newbie

Joined: 15 May 2006
Posts: 1

Posted: Mon May 15, 2006 1:17 pm Post subject: PC 5740

so, did anyone find a solution as to how to boost the signal for this card? does an external antenna ... which does not require to be plugged into the card work ... since the card does not have one?

AntonOlsen
EVDO Fledgling

Joined: 15 Aug 2005
Posts: 19
Location: San Antonio

Posted: Mon May 15, 2006 1:40 pm Post subject: Re: PC 5740

boost wrote:

so, did anyone find a solution as to how to boost the signal for this card? does an external antenna ... which does not require to be plugged into the card work ... since the card does not have one?

I bought a "universal" adapter at radio shack, stripped off one end and soldered it to the traces on the card. I got a marginal improvement in signal strength but not a whole lot of improvement in stability or speed. I used the tombstone antenna that RS sells for about $40 and later switched to a 9dbi magnetic mount for the roof (corrugated steel).

The magnetic mount is also good for trips. I've driven between San Antonio, TX and Galveston (250 miles) and not lost connection.

I soldered the center conductor of the coax to the pad where the "spring" makes contact and the shielding to the "dotted" area (the ground plane). I had to scrape off some of the varnish to get to the metal underneath.

I ran it this way for a couple months but eventually switched to a cheap 5220 off ebay when I started building my stompbox. The 5740 was too tight of a fit in the small case.

http://anton.lr2.com/archives/2006/03/26/stompbox-its-an-access-point-now/

MaximumSignal
EVDO Vendor

Joined: 08 Apr 2005
Posts: 586
Location: Cheektowaga, NY

Posted: Mon May 15, 2006 2:08 pm Post subject: Re: PC 5740

boost wrote:

so, did anyone find a solution as to how to boost the signal for this card? does an external antenna ... which does not require to be plugged into the card work ... since the card does not have one?

We have an induction adapter designed for Blackberry's and PDA's that might work if positioned properly

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