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From Slashdot: “Armatix has built a pistol that will disarm itself when it is taken away from a watch that sends it a wireless arming signal. The .22 caliber guns will go on sale in the US within months, and the initial price is 7,000 euro. Higher caliber models will follow. To activate the gun, users [...] There are a wide variety of ways to mount equipment. We are big fans of using standoffs. By using standoffs you are lessening the rick of electrical surge damage. Electricity will find the shortest path to ground. It won’t travel down/up a tower, out to a standoff, and back. Standoffs also do the important job [...] Sector and radfio on a standoff around 300 feet linksys 192.168.1.1 admin admin Core Routing WISPs have two major antenna polarizations to deal with. You have Horizontal & Vertical. As with anything you have bonuses and drawback of each. Some WISPs use Circular polarization but I would recommend against it. Your choices on circular polarization are much more limited. Vertical Polarization (V-POL) is the most common out there. Home routers and [...] Small Net Builder notes that The Wi-Fi Alliance has started certifying single-stream access points and routers that use 802.11n technology. The 802.11n specification delivers speeds in excess of 100 Mbps primarily because it uses multiple radios on multiple channels. The protocol was also enhanced for better speed, but any radio using only a single radio [...] If you don’t come away with anything else in this article remember this. Omnis are bad. You have 3 major type of antennas you will deal with. The first is the Omni directional. This receives and transmits a full 360 degrees. In otherwords a single antenna can cover a full 360 degree radius. An Omni is not [...] |
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