All posts by Rob Mavis - AE6GE

New World Record in Generation of HF Submillimeter Waves

Physorg.com

Researchers at the UCLA Henry Samueli School of Engineering and Applied Science have achieved a new world record in high-frequency submillimeter waves. The record-setting 324-gigahertz frequency was accomplished using a voltage-controlled oscillator in a 90-nanometer complementary metal-oxide semiconductor (CMOS) integrated circuit, a technology used in chips such as microprocessors.

The signal generator, which produces frequencies nearly 70 percent faster than other CMOS oscillators, paves the way for a new generation of submillimeter devices that could someday be used in high-resolution sensors on spacecraft, and here on Earth in a new class of highly integrated and lightweight imagers that could literally cut through fog and see through clothing fabrics. And because frequency ultimately means bandwidth, “the higher frequency increases the available bandwidth,” said M.C. Frank Chang, UCLA professor of electrical engineering, who leads the research team. That greater bandwidth translates into faster communication speeds.

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VE Exam in Clovis on April 24

AMATEUR RADIO VE EXAM IN CLOVIS – UNLICENSED THRU EXTRA CLASS

Sponsor:
Clovis Amateur Radio Pioneers (CARP)

Date/Time:
Tuesday April 24 at 7:00 pm.

Location:
Clovis Senior Center
850 Fourth Street
Clovis, CA

Information:
Theory exams are multiple choice.

Bring:

  • Two ID’s, one with photo
  • Taxpayer ID Number / Social Security Number
  • Fee $14.00 per test session, bring exact change please

If Upgrading Bring:

  • ULS registration Number or FCC Registration Number
  • Original and copy of Amateur License and CSCE’s

Contact:
Ray Harkins, KB6LQV
(559) 270-0520

Website:
http://www.k6arp.org

Walk-ins are allowed.

Ham Radio Operators Stand Ready – Just in Case

By Sarah AuBuchon
Suburban Journals –
St. Louis, MO

Picture this: A massive tornado touches down in Jefferson County, whipping its way through Cedar Hill, Hillsboro, Festus and Crystal City. Power lines are down for miles and cell phone towers crumble in its path. Police and fire departments radios are off the air. Jefferson County Emergency Services Director Brian Counsell declares a state of emergency.

Enter the amateur, or “ham,” radio operator.

Members of the Jefferson County Amateur Radio Club have developed a plan to aid emergency services in the event of a disaster.

Continue reading Ham Radio Operators Stand Ready – Just in Case

VE Exam: Clovis

AMATEUR RADIO VE EXAM IN CLOVIS – UNLICENSED THRU EXTRA CLASS

Sponsor:
Clovis Amateur Radio Pioneers (CARP)

Date/Time:
Tuesday April 24 at 7:00 pm.

Location:
Clovis Senior Center
850 Fourth Street
Clovis, CA

Information:
Theory exams are multiple choice.

Bring:

  • Two ID’s, one with photo
  • Taxpayer ID Number / Social Security Number
  • Fee $14.00 per test session, bring exact change please

If Upgrading Bring:

  • ULS registration Number or FCC Registration Number
  • Original and copy of Amateur License and CSCE’s

Contact:
Ray Harkins, KB6LQV
(559) 270-0520

Website:
http://www.k6arp.org

Walk-ins are allowed.

95th Anniversary of Titanic Sinking

News-Leader

Ham radio operators worldwide will be stationing themselves 8 a.m. to 7 p.m. Saturday at the Branson Titanic Museum marking the 95th anniversary of the ship’s sinking.

The event, which began as a idea by four Nixa amateur radio operators, will honor the radio operators that issued the SOS.

Since getting approval with the museum the “titanichams” have gained response from hams worldwide.

Continue reading 95th Anniversary of Titanic Sinking

RadioSkaF In Space Again

Russia-InfoCentre

New space project “RadioSkaf-2”, a continuation of space experiment “RadioSkaf”, starts this autumn in commemoration of 150th anniversary of K. Tsiolkovsky and 50th anniversary of the launch of first Earth’s artificial satellite.

“RadioSkaf” satellite was made by students from an old space suit and contained radio equipment, broadcasting necessary data to Earth.

Continue reading RadioSkaF In Space Again

Global Positioning System at the Mercy of Solar Flares

Environmental News Service

WASHINGTON, DC, April 9, 2007 (ENS) – Strong solar flares can cause Global Positioning System, GPS, receivers on Earth to fail, Cornell researchers have discovered. They predict that the large solar flares expected in five years could produce outages of all GPS receivers on the day side of Earth with devastating consequences for aviation and maritime operations, disaster relief, and telecommunications.

The findings were announced Thursday in Washington, DC, at the first Space Weather Enterprise Forum, a gathering of academic, government and private sector scientists who study the Earth’s vulnerability to the impacts of space weather.

“If you’re driving to the beach using your car’s navigation system, you’ll be OK. If you’re on a commercial airplane in zero visibility weather, maybe not,” said Paul Kintner Jr., professor of electrical and computer engineering at Cornell and head of Cornell’s GPS Laboratory.

Continue reading Global Positioning System at the Mercy of Solar Flares

Sunspots Reaching 1,000-Year High

by Dr. David Whitehouse
BBC News Online

A new analysis shows that the Sun is more active now than it has been at anytime in the previous 1,000 years.

Scientists based at the Institute for Astronomy in Zurich used ice cores from Greenland to construct a picture of our star’s activity in the past.

They say that over the last century the number of sunspots rose at the same time that the Earth’s climate became steadily warmer.

This trend is being amplified by gases from fossil fuel burning, they argue.

Continue reading Sunspots Reaching 1,000-Year High

Space Adventures’ Charles Simonyi Launches

Bound for the International Space Station

 

SEO/SEM Journal

VIENNA, Va., April 7 /PRNewswire-USNewswire/ — Space Adventures, Ltd., the world’s leading space experiences company, announced today that their orbital client, Charles Simonyi, Ph.D., and his crew successfully launched aboard a Soyuz TMA spacecraft from the Baikonur Cosmodrome in Kazakhstan bound for the International Space Station (ISS). Dr. Simonyi joins the Expedition 15 crew which includes Russian cosmonauts Fyodor Yurchikhin and Oleg Kotov for his 13-day mission.

“I consider my mission to be a small part of an important trend to make space accessible to more people. I hope to share my mission with many others through my Web site, http://www.charlesinspace.com/, which I will continue to update during my time on the ISS,” said software pioneer and aviator, Dr. Simonyi. “I feel very lucky to be the world’s fifth civilian space traveler and I am very thankful to Space Adventures for providing me with this opportunity.”
Continue reading Space Adventures’ Charles Simonyi Launches

Radio Ham Saves Sailors … from 200km Away

by Phil Thomson
Port Macquarie News Online
– Australia

An amateur radio operator from Comboyne has saved the lives of two men battling treacherous five-metre seas during a day-long Good Friday ordeal in the Pacific Ocean.

Bob Wilson and Mike Ross are now safe after their calls for help were heard by 62-year-old Harold Ralston – a radio ham for the past 30 years – who was working in his shed when he heard the call.

“He’s an amazing guy and I can’t wait to shake his hand,” said Mr Wilson, the boat’s grateful skipper.

Continue reading Radio Ham Saves Sailors … from 200km Away