OSCAR News - April, 2Ø11
The next OSCAR meeting is 14-Apr @ 9:00 AM, the second Saturday of the month. Meetings are held in the meeting room at the Owatonna HyVee, 18th Street @ Oak Avenue.
The next SKYWARN meeting is 17-Apr @ 7:00 PM, the third Tuesday of the month. Meetings are held at the Owatonna Fire Station.
VARS Technician Class
From Jon WBØZFH
The Viking Amateur Radio Society will be conducting a Technician class starting on April 3 at 7pm. The classes will run about 2 hours each night. Anyone who wishes to enroll or help teach the class can contact Reg Cass at firstname.lastname@example.org
OSCAR VE Session
OSCAR completed the seventh Technician class with a VE session on 08-Mar. We were able to provide five new licensees:
The 2012 graduates of the OSCAR Technician class are provided an OSCAR membership for the balance of 2012. Larry KRØK offered an ICOM V-8 handheld in a drawing of OSCAR class particiapnts that passed the exam. Kirk KDØRGI was the winner of the radio in a drawing from the hat of eligable participants. Thanks, Larry, for that added incentive.
- KDØRGG Chris Jankowski
- KDØRGH Lowell Kruse
- KDØRGI Kirk Sorenson
- KDØRGJ Bill Green
- KDØRGK Michael Ditlevson
Randy KDØNUV came prepared for the exam and earned an upgrade to General.
Many thanks for the continuing suport of the OSCAR membership. Instructors were:
Larry KRØK; Randy KDØNUV; Dale WBØPKG; Dennis NØRPI;
Jeff KCØUOW; and Tom NØUW (with the help of others in the peanut gallery).
Larry KRØK; Dale WBØPKG; Dennis NØRPI; Dennis NØRPJ; and Tom NØUW.
Larry is the "senior statesman" with 40 VE sessions to his credit.
OSCAR Elmer Session
The 2012 Elmer Session was held on 22-Mar. Three new licensees appeared with five OSCAR members available to assist. Programming radio memories and checking out a couple of radios that didn't seem to work took up the evening. Thanks to Mike KDØDKC, Larry KRØK, Randy KDØNUV, Dale WBØPKG, and Tom NØUW for supporting our newest members.
Changing of the Guard
You will probably see a difference in the OSCAR Newsletter beginning with the May issue. Brian KØBDD takes charge as OSCAR Newsletter editor. Brian will appreciate everyone's help to make the OSCAR Newsletter meaningful and usefull to the OSCAR membership. Submissions of new articles, ideas, and just plain old general suggestions are always helpful. Many thanks to Brian for assuming this new responsibility on behalf of the OSCAR membership.
Call Sign Lookup
From Junior NXØB
Here the one about a ham going down the road and seeing an Amateur Radio license plate, but didn't know who it was? You can now call or text 480-374-3234 and get an automated lookup of the call sign. You say the letters phonetically and the say "finish" when at the end of call sign.This
YouTube video gives a demonstration by Chris N7ICE, who developed the application.
From Radio World
www.calculatoredge.com is a compilation of every kind of calculation imaginable. Need to figure out the right size dropping resistor for an LED? Look under electronics. Pouring your own concrete pad? Head to the "Civil" tab and enter the length, width and depth. You'll instantly get the volume of concrete required. In addition to chemical, plastics and structural tabs, there's a finance tab that will do mortgage and car payment calculations. If you really want to get depressed, throw some numbers in the retirement calculator and see how much you'll have to save for retirement.
From NASA Tech Briefs
Power-generating rubber films could someday use natural body movements like breathing and walking to power pacemakers, phones, and other devices. Ceramic nanoribbons embedded onto silicone rubber sheets that are piezoelectric, generates electricity when flexed. Your running shoes made from the material might produce enough energy to power your iPod.
Biomechanical Energy Harvesting
From Multiple Sources
With all of the electronics in use, batteries and recharging them is an issue. Consider the problems you may have when conventional methods to recharge batteries are not available for several days, or weeks. There are several portable solar chargers on the market. One company is developing a technology that straps to the heel end of a boot. A charge is developed by the relative motion of the heel to the ankle while walking. Producing up to 9 watts of power, a pair of AA batteries might be recharged in as little as 90 minutes of walking.
From Multiple Sources
Scientists are trying to take another lesson from Mother Nature by using plants as a model for a fuel cell. Plants use solar energy to splitting hydrogen atoms from the companion oxygen in water. Mans efforts at reproducing that feat have been hampered by the fact that it takes more energy to split the molecule than can be achieved with conventional solar cell technology. By using a photoelectrochemical (PEC) water splitter, the amount of solar energy required can be reduced.
From Multiple Sources
We know the advantages of using a directional beam antenna, an omni-directional antenna, and when to use which one. Researchers demonstrated the ability of directional antennas to reduce power consumption on mobile devices. Antennas have shrunk to a size where multiple antennas could fit in a mobile device. The potential problem is interference when multiple devices are aimed directly at the same node. They propose a software solution that would optimize the transmissions between users.