18dbi omni antenna power

18dBi Omni-Directional Wi-Fi Outdoor Antenna

would my d-link dl-524 be able to support and give this antenna power its needs to get a full 18dbi gain? (i know i need to get a pigtail)

Your question has no relevance.

The gain of the antenna is 18db regardless of the input power. There may be a maximum power rating of the antenna, but this does affect its gain.

Regards

Fred

so i doesn't matter how much Mw the router gives off?

Nope, just add it to the total output. Your dl-524 puts out approx 15dBm you will probably have around 1dB of connector loss giving you a total EIRP of 32dB

15+18-1=32

Does anybody know if this model really works well?

I bought a 7db antenna on ebay that worked iffy, then I bought an 11db antenna that worked even worse.

If this model is known to work well, please let me know how well and why, and what kind of adapter do I need to connect it to my wireless card? (On the specs info page for this model, it says this model has an N-connector, but I can't tell if its a male or female and does my wireless card have an SMA or RP-SMA? What kind of adapter would I need? My wireless PC adapter card is a Linksys model #WMP54G)

We can make our wifi network more powerful for changing antenas ... In market many types of antena available ... For best tricks and info this link may help u

Wifi pune, Wi-fi Pune, Pune Unwire - Wi-fi Product Guide - Antenna

here u will find all ger8 info.

The image looks like an N female but the text says N-Jack. bottom line: email the seller.

Linksys use RP-TNC connectors. You would need an RP-TNC - N pigtail. Trying to guess what gender to call each end is beyond the ability of my brain.