You are currently browsing the Milliwatt weblog archives for the day September 20, 2007.
- AMSAT (54)
- Apple (9)
- ARRL DX BULLETIN (62)
- ARRL Letter (10)
- ARRL Web Extra (203)
- ATV (10)
- BPL (15)
- Classes (3)
- CQ News Service (3)
- DX (11)
- DXCC (14)
- Events (7)
- Exams (3)
- GB2RS (8)
- Hamfests (33)
- International (15)
- iPhone (4)
- iPod (3)
- K7RA Solar Update (6)
- Meetings (23)
- Miscellaneous (80)
- Public Service (21)
- RSGB (44)
- Silent Key (23)
- Some Thoughts (18)
- Travel (67)
- USA Today (102)
- WA7BNM Contest Calendar (22)
- WiFi (24)
- Wireless (8)
- December 23, 2009: Atlantic Division to Host Webinar
- December 23, 2009: ARRL Announces KF2YN's ARRL Antenna Designer's Notebook
- December 21, 2009: A Ham Without a Country
- October 28, 2009: Amateur Radio Webinar Series - Tomorrow! (10/29)
- October 7, 2009: G and G ELECTRONICS YARD SALE
- October 5, 2009: ARRL DX Bulletin 2009 #39
- October 5, 2009: Angola Operation Approved for DXCC
- October 5, 2009: BARC VE Testing Schedule for 2010
- October 3, 2009: Special Event Station W3ZH
- October 1, 2009: Should airlines let passengers make calls via Wi-Fi?
- December 2009
- October 2009
- September 2009
- August 2009
- July 2009
- June 2009
- May 2009
- April 2009
- March 2009
- February 2009
- December 2008
- November 2008
- October 2008
- September 2008
- August 2008
- July 2008
- June 2008
- May 2008
- April 2008
- March 2008
- February 2008
- January 2008
- December 2007
- November 2007
- October 2007
- September 2007
- August 2007
- July 2007
- June 2007
- May 2007
- April 2007
- March 2007
- February 2007
Archive for September 20, 2007
The K7RA Solar Update
September 20, 2007 by kb3ljm.
The sun has been blank, no visible sunspots, for the past seven days, September 7-13. We may not see another spot until September 22, just before the autumnal equinox. Thursday evening, September 13, Spaceweather.com mentioned a coronal wind hitting earth this evening, September 14. The Interplanetary Magnetic Field (IMF) points south, which makes the Earth vulnerable to solar wind, but other sources don’t call for an increase in geomagnetic activity today. We might assume that a solar wind from 27 to 28 days ago could return at this time, based on the rotation of the Sun relative to Earth. But looking back four weeks does not reveal any heightened activity. Of course, it could be that the IMF pointed north, protecting earth from the coronal wind.
http://www.arrl.org/news/stories/2007/09/14/102/?nc=1
Posted in K7RA Solar Update | Comments Off
Satellite Shorts From All Over
September 20, 2007 by kb3ljm.
- Hotel reservations in the reserved block of rooms for the AMSAT Symposium in Pittsburgh are being quickly booked up. This is a reminder to visit the Symposium web page and make your reservation.
- Robert, G8ATE and John, G7HIA will be using the special call sign GB5OSO starting on the 4th October for one month to celebrate the 50th Anniversary of the launch of the first earth orbiting satellite SPUTNIK ONE on that date in 1957. All of the available analogue satellites will be used as time permits. A special QSL card will be available after the event.
Posted in AMSAT | Comments Off
Three Satellites Spur Activity on 145.825 MHz Packet
September 20, 2007 by kb3ljm.
The ARISS system aboard the International Space Station has frequently enabled its packet digipeater for APRS on 145.825 using the path of “VIA ARISS”.
Additionally, by mid-September PCSAT-1 should enter a FULL SUN OPERATING PERIOD. This may present a period of a few weeks when we will have THREE APRS satellites flying in constellation: ISS, PCSAT-1, and ANDE, all operating 145.825 MHz.
Read the rest of this entry »
Posted in AMSAT | Comments Off