I am looking for some way to make my wifi card more sensitive (I am not looking for anything to the router/access point). Is there anything that can do this? My card is a D-Link DWL-AG650

switch to a prism / orinocco gold / wireless card
it has an external antenna port.. That tends to help alot.

If your laptop supports it, you might try an internal wireless card, some laptops have really great antennas for them

Ok, so switching to another card is the only solution? Well, if I would change, which card has best support in Linux? Which card is to prefer? Any suggestions?

please read the text that you qutoed.

Well, the problem is that I could not make much out of this part: "prism / orinocco gold / wireless card". Is prism one card and "orinocco gold" another? Also, I wanted to know, from other people, if there are other cards that work good as well.

Those are three names used for the same card. It may also be listed as orinocco classic, Avaya wireless B, Lucent Wireless, among others. I

Does orinoco gold only support b or is there any card that supports more? Why does the card go under so many names? I also found at the kismet site that there are two seperate drivers called orinoco-something and prism-something. What is the difference between prism and orinoco?

I also noticed in the Kismet forum that there are problems getting orinoco in monitor mode. I checked for other cards with prism/2 chipset but none that I found had support for an external antenna. I would like a card that are well-supported in linux and has support for an antenna. Is there such a card?

* ORiNOCO and Prism are apples and oranges.

ORiNOCO is a brand name that has been through several corporate calisthenics and is now owned by Proxim. The original cards (now called "Classic") use a Hermes chipset. Their radio performance was the gold standard for wireless cards, despite their modest 30mw transmit power. The external antenna jack helped make it the favorite of war drivers.

The ORiNOCO brand name was appropriated for successor cards (with lesser electronics in the case of the HermesII chipset-based "World" cards) as well as Proxim's Atheros-based B/G and A/B/G cards.

The 'other' wireless cards, back in the day, were based on chipsets made by Prism. Their hardware incarnations were enumerated Prism2, 2.5 and 3. Cards manufactured by Zcomax using Prism chipsets were widely sold under other labels and featured high power, good radios and a detachable antenna which exposed external connectors. Similar designs are available under Senao and Demarctech.

The orinoco driver, written by David Gibson http://ozlabs.org/people/dgibson/dldwd/ actually works with both the original ORiNOCO and the Prism2-3 cards. This is where some of the confusion lies. One driver, many cards.

The orinoco driver has been patched to enable monitor mode by Dragorn, Schmoo or in the release candidate drivers. In this mode, the card is in a "listen only" state.

More one the cards, drivers and operating modes: http://www.hpl.hp.com/personal/Jean_....802.11ag.html
Some sources for high-power Prism cards with external connectors:
http://www.netgate.com/
http://shop.store.yahoo.com/justdeals/enwinepr1.html
http://www.demarctech.com/
http://www.computers4sure.com/produc...&HKeyword=2532
http://www.computers4sure.com/produc...HKeyword=zyair

One of the best prices around on a classic ORiNOCO:
http://www.cdw.com/shop/products/def...spx?EDC=503935

Sorry about telling you how to build a watch when all you wanted to know was the time.