undecided....

Rescue Tape for sealing Coax

j2sw — Sun, 07 Feb 2010 05:59:02 +0000

http://www.rescuetape.com/

Great for sealing coax connectors for WISP & Ham uses.

Blog is moving

j2sw — Mon, 01 Feb 2010 05:26:43 +0000

Justin Wilson’s writings will be moving to j2sw.mtin.net/blog

Please update your bookmarks and rss feeds. After February 1 this blog will remain for historical purposes only until such times as it is retired.

j2sw — Mon, 01 Feb 2010 05:18:58 +0000

Real World Wireless Application

j2sw — Sat, 30 Jan 2010 15:34:05 +0000

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 must enter a pin code on the wristwatch, and then keep it within roughly 20cm of the gun. If the person is disarmed, the gun can’t be used against them.

Install Photo of the day

j2sw — Fri, 29 Jan 2010 19:33:57 +0000

Canopy Cluster with GPS Sync

802.22

j2sw — Fri, 29 Jan 2010 02:47:46 +0000

http://en.wikipedia.org/wiki/IEEE_802.22

One of the big benefits of this is the CPE talk back to the base station and relay data about their connection. After amassing this data determine if the base stations needs to hop a channel or stay on the same channel. Very cool for dealing with noise on the fly.

Cisco TSHOOT Beta Exam

j2sw — Thu, 28 Jan 2010 19:42:48 +0000

From http://ciscocert.custhelp.com/app/answers/detail/a_id/5798

The TSHOOT beta is an early release of the TSHOOT certification exam, which is used to determine the predictive ability of the exam questions. It is the same length and covers the same topics as the final exam. Candidates who pass a beta exam receive full credit, however scores on beta exams are not immediately available. Candidates must wait six to eight weeks, until the beta analysis is complete, to receive their scores. The TSHOOT beta exam will be released sometime around February 16 and be available through March 26, 2010 at a discounted price of $50 USD. As an incentive to schedule, the first 150 beta exams completed will be provided free of charge. Candidates may attempt a beta exam only one time. Scores are expected to be released at the end of April.

Starting a WISP – Mounting antennas

j2sw — Thu, 28 Jan 2010 16:55:37 +0000

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 of putting the antennas away from the tower. This way the tower is not interfering with the wavelength of the antenna.

Depending on the tower standoffs can be quite inexpensive. If you are talking about Rohn25 you can have some pretty basic custom standoffs made by a local welder.

Install Photo of the day

j2sw — Thu, 28 Jan 2010 16:48:24 +0000

Rohn 25 around 120 feet

300 million for 14 grants

j2sw — Tue, 26 Jan 2010 04:52:25 +0000

http://www.dailywireless.org/2010/01/25/300m-in-broadband-grants-for-14-projects/

This is one reason WISPs need to unify. Look at the list of companies that are getting this money. I count 11 telephone companies & Utilities. At this rate the typical WISP will have an uphill battle. To me the WISP industry is not a long term model. I could be wrong. This is why WISPs out there need to do it right the first time and go hard at building a business model that works.