++++++++++++++++++ Date: Tue, 23 Jul 2002 21:37:14 -0500 To: elecraft at mailman.qth.net From: Tom Hammond =?iso-8859-1?Q?N=D8SS?= Subject: [Elecraft] AstroAlert: Makings of a Super-Region - A Potentially Stormy Future Hi Folks: If you begin to think your HF rig has died and that the bands just COULDN'T be THIS DEAD (for the next WEEK!), the following may help to explain why. 73, Tom Hammond N0SS ps If you're into auroral propagation, or viewing auroral activity, this is a GREAT source of information. Subscription is free. ================================================================= This Is SKY & TELESCOPE's AstroAlert for Sun-Earth Interactions ================================================================= A s t r o A l e r t Sun-Earth Alert Solar Terrestrial Dispatch http://www.spacew.com 23 July 2002 A MOVIE of this event is available: http://www.spacew.com/astroalert.html Watch solar activity in real-time: http://www.spacew.com/sunnow (updated every minute) MAKINGS OF A SUPER-REGION - A POTENTIALLY STORMY FUTURE The sunspot complex believed to be responsible for the X-class solar flare of 21 July rotated fully into view today and announced its arrival by spawning a spectacularly powerful class X4.8 solar flare. This significant flaring region has the potential to produce substantial effects at the Earth over the next two weeks if it can hold itself together that long. For the complete story, please visit: http://www.spacew.com/astroalert.html. There are too many illustrations required in this alert to present adequately through this e-mail. Please refer to the link above for details. This presumed proton flare produced a massive Moreton Wave and a high velocity partial halo coronal mass ejection (images of this activity are included on the web site). The next two weeks may see more "fire in the sky" than we have in the last 10 years if the spot complex continues to pump out activity at the furious rate that it is presumed to have produced over the last week. ** End of the AstroAlert Bulletin ** ================================================================== AstroAlert is a free service of SKY & TELESCOPE, the Essential Magazine of Astronomy (http://SkyandTelescope.com/). This e-mail was sent to AstroAlert subscribers. If you feel you received it in error, or to unsubscribe from AstroAlert, please send a plain- text e-mail to majordomo at SkyandTelescope.com with the following line -- and nothing else -- in the body of the message: unsubscribe sun-earth e-mail at address.com replacing "e-mail at address.com" with your actual e-mail address. ================================================================== ++++++++++++++++++++ From: "Frank LaFranco W6NEK" To: Subject: Re: [Elecraft] Changes from 100 watts to 10 watts Date: Sat, 28 Dec 2002 12:13:31 -0800 Hello all, The statement that beacon station 4U1UN is operating on 28.200 MHz is an over simplification because the NCDXF beacon station referred to is only one of 18 beacon stations, spread through the world, which rotate transmitting on this assigned frequency. On 28.200 MHZ, the New York beacon station 4U1UN transmits 40 seconds past the hour for a period of 10 seconds. It then repeats the 10 second interval every 3 minutes. During that 3 minute period, 17 other NCDXF world wide stations are transmitting on this frequency. Each of them also transmit for 10 seconds. Therefore, in one 3 minute period, you have 18 worldwide beacons each transmitting ,one at a time, for 10 seconds. This is very useful for determining propagation openings to various parts of the world in real time. Each beacon will send its call sign (at 22WPM) followed by 4 one second carriers at 100W, 10W, 1W and 0.1Watt. In addition, the same 18 world wide beacons transmit on other HF bands. These include 20 meters (14.100 MHz), 17 Meters (18.110 MHz), 15 Meters (21.150 MHz), 12 Meters (24.930 MHz) and 10 Meters (28.200 MHz). If you tune to these frequencies, be sure to place your rig in CW mode to ensure you are listening to the displayed frequency. The NCDXF HF Beacon Network is a very valuable operating aid. For more info on this network go to: http://www.ncdxf.org/beacon.htm 73... Frank - W6NEK ----- Original Message ----- From: To: Sent: Saturday, December 28, 2002 8:08 AM Subject: [Elecraft] Changes from 100 watts to 10 watts > This is a critique of the Elecraft K2/100 > > Here are approximate changes on the NCDXF beacon > going from 100 watts to .1 watts. The station is 4U1UN > New York City on 28.200. Antenna is a 4 element beam. > > S9 100 watts > S8 10 watts > S5 1 watt > S3 .1 watt > > You are invited to listen to the NCDXF/ IARU beacon > network and listen for yourself the actual change in > signal level as the beacon goes fm 100 watts to 10 watts, 1 > watt and 100 mW, ++++++++++++++++++