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An aggregate of Ham Radio related news.
  • Holiday SSTV Experiment from the International Space Station

    ARISS will be conducting an SSTV experiment from the International Space Station (ISS) beginning December 25th and running through January 5th.

    Officially titled Expedition 72 - ARISS Series 23 SSTV Experiment, interested listeners can receive SSTV images in PD120 mode from the ISS on 145.800 MHz. There will be 12 different images in the series coming from callsign RS0ISS. Received images can be uploaded to the ARISS SSTV gallery at https://ariss-usa.org/ARISS_SSTV/.

    Source: ARISS

  • RandomGram Amateur Radio CW Event

    RandomGram, A unique CW contest, takes place December 20th. The contest is unique in that participants send random groups of characters designed to test the accuracy of exchanged information. Transmitting isn't required! Listeners may earn points by submitting groups of characters heard sent to other participants.

    The event begins December 20th at 22:00 UTC and runs for two hours.

    Source: RandomGram

  • Saudi Sat SO-50 Event 22 in Progress

    To celebrate the 22nd anniversary of SO-50, the Saudi Amateur Radio Society (SARS) is organizing a global competition, the Saudi Sat SO-50 Event 22. The event will take place from December 13, 2024, at 00:00 UTC to December 22, 2024, at 23:59 UTC, inviting amateur radio operators to make contacts (QSOs) via the satellite during the competition period.

    See the announcement for details on obtaining certificates from this event.

    Source: AMSAT

N4UN Amateur Radio
BASE 24 Flight PDF Print E-mail
Written by Administrator   
Sunday, 22 June 2008 11:32

 BASE 24 Flight 

 BASE 24 was launched at 13:06 UTC. Max altitude 88,300 feet. We watched the burst from Hope, Indiana town square. Observed final 5,000 feet of the descent. Recovered payload in a soybean field narrowly missing power lines and just short of a small grove of tall trees. Flight was 86 miles at a heading of 131 degrees.

 More details tomorrow on the website: www.depauw.edu/acad/physics/base

 Howard

 
First Alaskan Balloon Flight PDF Print E-mail
Written by Administrator   
Monday, 12 May 2008 10:55
After several months of preparation, we launched the BEAR balloon
flight #1 yesterday morning (Saturday May 10) at 10:09am and watched
in awe as it went to 95,170 feet before burst and subsequent descent.

Our initial flight planning included an airplane intercept with
on-board GPS/Radio tracking gear operated by two ham radio operators
who tracked the descending balloon and overflew the exact impact location.

Although we originally thought recover would be impossible, we were
thrilled with a near vertical ascent and descent with the balloon
package landing about 12 miles away and within 4-wheeler reach. Within
the next week, we are anticipating recovery of capsule 3 which
included a still camera set to taken pictures every 3 minutes as well
as a data logger.
Last Updated on Monday, 12 May 2008 12:26
Read more...
 
BASE 23 Flight: 2008 May 7 PDF Print E-mail
Written by Administrator   
Monday, 12 May 2008 12:14


Launch: Tzouanakis Intermediate School, Greencastle, IN 12:45UTC

Ascent Rate:   1250 ft/min Ascent Profile (.jpg) Ascent Rate (.jpg)    

Burst Altitude:  82,300 feet

Landing Time: 14:32 UTC

Landing Site: on US 52 southeast of Rushville, Indiana

Launch video (.wmv) Burst Video (.wmv) Lost Lid Video (.wmv)

A normal flight with early burst. The balloon returned in one large sheet attached to the nozzle, no stringing as has been seen on most flights. Lost the lid on part of one pod during the post-burst collisions between pods. Unusual ending, with the flight string being caught by a moving truck traveling east (actually southeast) on US 52. Student experiment with four small containers of liquids revealed that the distilled white vinegar and CocaCola behaved like water, and the oil lost temperature much quicker. (See graph)

 
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American Radio Relay League | Ham Radio Association and Resources
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.
  • The K7RA Solar Update

    Excellent HF conditions greeted hams in the ARRL 10-Meter contest
    last weekend. Recent indicators show a sudden shift to two digit
    daily sunspot numbers from three, and although there is nothing
    significant about 100, it makes one notice.

    All daily sunspot numbers this week were 97 or less.

    Perhaps this indicates a move off of solar maximum, or to a future
    with a second maximum.

    Solar activity was way...

  • The K7RA Solar Update

    Average daily sunspot number plummeted to 104.4.

    Weekly Commentary on the Sun, the Magnetosphere, and the Earth's Ionosphere for December 12, 2024 from OK1HH:

    "The high solar activity in October this year suggests that this may have been the peak of an 11-year cycle.  This is not to say that solar activity will not continue to rise.  On the contrary, it may well be that the first maximum of the...

  • ARRL Teachers Institute on Wireless Technology Now Accepting Applications for 2025 Cohorts

    The ARRL Teachers Institute on Wireless Technology (TI) continues to grow. Fresh off a highly successful YouTube telethon that raised more than $41,000 for the program, some of next year’s dates have been announced. Applications are now open.

    The program is growing, and educators will have the opportunity to attend sessions around the country. “We love having the teachers here at ARRL Headquarte...

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