The Educational CyberPlayGround ® Educational CyberPlayGround ®

 

Radio Waves: Crystal Radio, Learn to Be a Ham Radio operator

Middle School and High school projects with Technology.

I see the bottom line as the only reliable route that guarantees access to emergency services during prolonged power outages is the hard wired CO powered telephone. In the rural (thin suburban)country side , like I live in, I may and indeed did , face the situation where there was NO emergency communications during long area power outages (note -- there is a tendency of power companies to service the denser areas first before areas like mine. Also since it is hard to guarantee the hard CO line, the only option I see is a sat phone. ~ Dave Farber 2011

Data is a term that encompasses all digital modes, ranging from CW (Morse Code) to the very latest in digital communications on our HF bands, Packet, Pactor II and Clover.

 

April 13th - 19th
National Public Safety Telecommunications Week

Explanation of wireless communication

 

 

 

 

"You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there. The only difference is that there is no cat." -- Albert Einstein

This is dedicated to all the kids in 1938 who first built and used Ham Radios then later grew up to be the generation who fought and won World War 2.

Get your school involved with ham radio operation. We need them in an emergency because the Cell Phones Don't Work!

 

 

RADIO REFERENCE DATA BASE

AMATEUR HAM RADIO DATABASE

 

The Army's cancelled GMR Ground Mobile Radio which cost over $6 billion to fail! How to blow $6 billion on a tech project. Military's 15 year quest for the perfect radio is a blueprint for how to fail. 2012

 

June 14, 2010 Mr. Witherspoon is a ham. His call is KF4TZK.
“This is the sound of renewable education!” says Thomas Witherspoon, 37, founder of Ears to Our World, as he picks up a small portable radio and quickly cranks its handle, producing a high-pitched, wobbly whine. Inside, a dynamo charges the radio's battery. Witherspoon has taken his love of shortwave radio and filtered it through his experience in the corporate world, devising a strategy to help the most people for the least money. ETOW distributes wind-up radios to isolated villages across Africa and into Belize and Romania, providing listeners with vital information. His radios are also proving to be disaster-relief heroes in earthquake-devastated Haiti. “The telephone did not work, even the cell phone. But with their radios, they could go on shortwave, and be informed.” A week later, when a 5.9 aftershock rocked the village and rumors of an impending tsunami stirred panic, the teachers were able to turn to their radios again. Fred Osterman, owner of Universal Radio, a retailer in Ohio, who sent him several wind-up radios to test. He settled on the Etón Grundig FR200 for its durability, reception and LED light (about $50 each). Osterman then introduced Witherspoon to Esmail Amid-Hozour, the head of Etón Corporation. “The next thing I know,” Witherspoon says, “a tractor-trailer is arriving where we live and we're offloading two pallets of radios. Etón donated all the inventory we needed to get started—500 radios.” In March, Witherspoon drove to Kulpsville, Pa., to set up a booth at the 24th annual Winter Shortwave Listener's Festival. “That family of radio enthusiasts has really powered a lot of what we've done.” Witherspoon says. A silent auction raised $700, but networking with the radio community is the real point for Witherspoon: It leads to partnerships and new ideas, like the new portable solar panel ETOW is working with. http://magazine.wsj.com/hunter/donate/tuning-in/

Andy Hardy (1939) and Ham Radio

 

 

Kids are ham radio operators and doing it all over the world. Love Finds Andy Hardy (1938) elected to the Library of Congress Film Registry in 2000 for the Ham Radio Scene that shows how it worked.
Andy Hardy (1939) and Ham Radio
Clip is from the classic film titled "Love Finds Andy Hardy" (1939). Andy Hardy (Mickey Rooney) uses a local Ham Operator to send an urgent message to Canada. Andy suggests a message be sent to their mother via ham radio in lieu of sending her a telegram. Andy brings Judge Hardy to the home of 12 year-old ham radio operator James McMann Jr (Gene Reynolds) and he sends a message to Mrs. Hardy. Judge Hardy is so impressed with James’ help and his son’s ingenuity that he pays the last $8 for Andy’s car.

 

 

For all the Ham Radio WannaBee's
And for those who'd like to understand what to study to take the test And for those who understand how important it is to keep the airwaves free ALL of us - THE PUBLIC - so that we are able to communicate with each other and really save someone's life in an emergency when All Communication has been destroyed (like in a hurricane) then this is your chance to . . . . Join the fight to keep our airwaves free! Big business wants to buy everything and leave nothing for us.

White space radios provided long distance services to WiFi radios. 802.11AF Long distance WiFi - Imagine. Easily networked hotspots, with omnidirectional antennas that can find fiber, not just the pitiful excuse for broadband your phone or cable monopoly sells. White spaces solved with a geolocation database then only the political problems need to be solved. The radios themselves weren't fancy — just converted AirSpan WiMax gear — and no attempt was made to encode for maximum throughput. That will be the work of a new IEEE committee dubbed 802.11AF, Srivaspaba said. And once the FCC gives the go-ahead, both that committee and the equipment market can go into overdrive. 2010

Internet Society Statement on Egypt's Internet Shutdown

 

 

 

Egypt shut down all internet access in the country.

How did they do it? Gigaom has figured out the basics, but essentially you have to shut down all routers that filter incoming traffic into the country. This will take the country off the grid from the global internet. If that's not enough, shutting down routers at ISPs will insure no one can access the web. That's pretty easy for countries that have complete control over their telecom industries. Egypt seems to have chosen a different method. The government ordered ISPs to stop resolving addresses ending in .eg, Egypt's domain name system, in addition to sealing off outside access. Vodafone, one of the ISPs in Egypt, released this frightening statement: "All mobile operators in Egypt have been instructed to suspend services in selected areas. Under Egyptian legislation the authorities have the right to issue such an order and we are obliged to comply with it. The Egyptian authorities will be clarifying the situation in due course." It boils down to this: Unless a government has direct control over ISPs, there is no "kill switch." It takes a government order to individual ISPs under the proper legal authority.
http://www.businessinsider.com/how-to-shut-down-a-countrys-internet-access-2011-1


Did US Companies Help Egypt Internet Crackdown?

Free Press, the non-partisan lobbying organization, reports that US companies are involved in providing technology that helps the Egyptian government monitor protestors on the Internet and mobile phones. Free Press issued a statement that claims:
Boeing-owned, California-based company Narus sold Telecom Egypt, the state-run Internet service provider, "real-time traffic intelligence" equipment, more commonly known as Deep Packet Inspection (DPI) technology. DPI is content-filtering technology that allows network managers to inspect, track and target content from Internet users and mobile phones as it passes through routers on the Web.
Narus Vice President of Marketing Steve Bannerman said to Wired in 2006: "Anything that comes through (an internet protocol network), we can record. We can reconstruct all of their e-mails along with attachments, see what web pages they clicked on, we can reconstruct their [voice over internet protocol] calls."

Free Press is calling on Congress to take action on DPI.
The harm to democracy and the power to control the Internet are so disturbing that the threshold for the global trafficking in DPI must be set very high. That's why, before DPI becomes more widely used around the world and at home, Congress must establish legitimate standards for preventing the use of such control and surveillance technologies as means to violate human rights.
Congress would be opening a Pandora's Box in terms of looking at the US companies that provide equipment to foreign governments that could be used against protestors. Some of the largest US tech companies are suppliers to governments in China, Iran, Burma and other countries that have been accused of human rights violations.
But where do you draw the line? DPI has many uses, and not all of them are nefarious. It would be near impossible to control the export of network hardware and software based on its possible use by foreign governments. However, a public shaming of US companies might have an impact and it would certainly be faster than waiting for Congress to act. You can support Free Press and its call on Congress to investigate the use and sale of DPI technology by American companies by signing your name here.

 

 

 

EMERGENCY COMMUNICATION Get prepared!!!
Get Ready ------> Get Set ------> Go ------>

From: Richard Murnane
Subject: Ham radios in the aftermath of 11 September 2001
Date: Tue, 2 Oct 2001 11:25:10 +1000
As others have noted, the terrorist attacks of 11th September caused major disruption to land-line and cellular phone communications. What hasn't been widely reported is that 570 Amateur (ham) Radio operators from 35 states and two Canadian provinces provided auxiliary radio communications to relief agencies operating in the affected areas.
The lesson is that even the most modern communications technology can fail, and that there is still value in having an independent communications infrastructure, especially when it costs the community little or nothing to maintain it. ~ Richard Murnane, Australian Amateur Radio station VK2SKY

In addition to helping out at emergencies when they happen, hams train every year for emergency communications in lots of ways. The most popular of those is "Field Day" where groups of amateurs put together stations "in the field" that often operate off independent power sources for a 24 hour continuous period and attempt to communicate with as many other such stations as possible. Field Day is always the fourth full weekend In June every year and usually around 30,000 amateurs all over the United States participate. In addition to voice modes (the most popular), many stations communicate via satellites and packet radio (even TCP/IP) as well. See The American Radio Relay League

© Educational CyberPlayGround ® All rights reserved world wide.