02/11/2012
Cherryland ARC Swap-N-Shop
Location: Traverse City, MI
Type: ARRL Hamfest
Sponsor: Cherryland Amateur Radio Club
Website: http://cherrylandarc.com
Learn More
W. Michigan's Leading Amateur Radio Blog
Location: Traverse City, MI
Type: ARRL Hamfest
Sponsor: Cherryland Amateur Radio Club
Website: http://cherrylandarc.com
Learn More

NOAA’s polar-orbiting and geostationary satellites are part of the international Search and Rescue Satellite Aided Tracking System, called COSPAS-SARSAT. This system uses a network of satellites to quickly detect and locate distress signals from emergency beacons onboard aircraft and boats, and from smaller, handheld personal locator beacons called PLBs.
Of the 207 saves last year, 122 people were rescued from the water, 14 from aviation incidents, and 71 in land situations where they used their PLBs. Other rescue highlights from the year include:
“With each rescue, this system performs the way it was intended — as a real, life-saving network,” said Chris O’Connors, program manager for NOAA SARSAT.
When a NOAA satellite finds the location of a distress signal, the information is relayed to the SARSAT Mission Control Center based at NOAA’s Satellite Operations Facility in Suitland, Md. From there, the information is quickly sent to a Rescue Coordination Center, operated by either the U.S. Air Force for land rescues or the U.S. Coast Guard for water rescues.
Since 1982, COSPAS-SARSAT has been credited with supporting more than 30,000 rescues worldwide, including more than 6,700 in the United States and its surrounding waters.
By law, owners of emergency beacons are required to register them with NOAA at: http://www.beaconregistration.noaa.gov. That registration information often helps provide better and faster assistance to people in distress. It may also provide information about the location of the emergency, how many people need assistance, what type of help may be needed and other ways to contact the owner. At the end of 2011 NOAA’s registration database contained over 329,000 registrations.
NOAA’s mission is to understand and predict changes in the Earth's environment, from the depths of the ocean to the surface of the sun, and to conserve and manage our coastal and marine resources. Join us on Facebook, Twitter and our other social media channels.
sourceThe A index [ LOW is GOOD ]
Represents the overall geomagnetic condition of the ionosphere ("Ap" if averaged from the Kp-Index) (an average of the eight 3-hour K-Indices) ('A' referring to amplitude) over a given 24 hour period, ranging (linearly) typically from 1-100 but theoretically up to 400.
A lower A-Index generally suggests better propagation on the 10, 12, 15, 17, & 20 Meter Bands; a low & steady Ap-Index generally suggest good propagation on the 30, 40, 60, 80, & 160 Meter Bands.
SFI index [ HIGH is GOOD ]
The measure of total radio emissions from the sun at 10.7cm (2800 MHz), on a scale of 60 (no sunspots) to 300, generally corresponding to the sunspot level, but being too low in energy to cause ionization, not related to the ionization level of the Ionosphere.
Higher Solar Flux generally suggests better propagation on the 10, 12, 15, 17, & 20 Meter Bands; Solar Flux rarely affects the 30, 40, 60, 80, & 160 Meter Bands.
K index [ LOW is GOOD ]
The overall geomagnetic condition of the ionosphere ("Kp" if averaged over the planet) over the past 3 hours, measured by 13 magnetometers between 46 & 63 degrees of latitude, and ranging quasi-logarithmically from 0-9. Designed to detect solar particle radiation by its magnetic effect. A higher K-index generally means worse HF conditions.
A lower K-Index generally suggests better propagation on the 10, 12, 15, 17, & 20 Meter Bands; a low & steady Kp-Index generally suggest good propagation on the 30, 40, 60, 80, & 160 Meter Bands.