Meteor Strike on NOVA Website You can always stream this or any other PBS re-run from the collection of NOVA vids on the PBS NOVA website.
TIP: If your local station doesn't show this (or any other PBS vid) change you local station to one in a big city. On Thu, May 25, 2017 at 12:00 PM, <topband-requ...@contesting.com> wrote: > Send Topband mailing list submissions to > topband@contesting.com > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.contesting.com/mailman/listinfo/topband > or, via email, send a message with subject or body 'help' to > topband-requ...@contesting.com > > You can reach the person managing the list at > topband-ow...@contesting.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Topband digest..." > > > Today's Topics: > > 1. propagation question. (K1FZ-Bruce) > 2. Re: propagation question. (Tim Shoppa) > 3. Re: propagation question. (K1FZ-Bruce) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Wed, 24 May 2017 16:20:36 -0400 > From: "K1FZ-Bruce" <k...@myfairpoint.net> > To: "Topband" <topband@contesting.com> > Subject: Topband: propagation question. > Message-ID: <201705242020.v4okka3s010...@mail23c26.carrierzone.com> > Content-Type: text/plain; charset=UTF-8 > > > Watch " Meteor Strike" on some PBS TV stations tonight. Check your > local TV listings for time and channel. > > Did anyone notice an increase in low band propagation for awhile, after > this rather large event ? > > 73 > Bruce-K1FZ > http://www.qsl.net/k1fz/beverage_antenna.html > > > ------------------------------ > > Message: 2 > Date: Wed, 24 May 2017 21:18:50 -0400 > From: Tim Shoppa <tsho...@gmail.com> > To: k...@myfairpoint.net > Cc: Topband <topband@contesting.com> > Subject: Re: Topband: propagation question. > Message-ID: > <CAJ_qRvYQKgNhYLfkhtacig9+MGt_HAUa_cbxjPsLOaatGAYk+Q@mail. > gmail.com> > Content-Type: text/plain; charset="UTF-8" > > Bruce, I went and looked at reversebeacon statistics for the two nights > before the Chelyabinsk meteor (that would be 13 Feb 2013 and 14 Feb 2013) > as well as the night of the strike (15 Feb 2013). The strike was at 0320Z. > I specifically looked for 160M EU-NA transatlantic reversebeacon spots and > counted the number of such spots. > > On 13 Feb 2013, there were 636 EU-NA reversebeacon spots. > On 14 Feb 2013, there were 776 EU-NA reversebeacon spots. > On 15 Feb 2013, there were 1984 EU-NA reversebeacon spots. > > HOWEVER, there is a confounding factor, which is that ARRL DX CW started on > 16 Feb 2013. I think the pickup in spots on 15 Feb could be entirely > explained by stations warming up and checking out the night before the > night before the big contest. > > There was one station, LY7M, that was on 160M for several hours before and > several hours after the meteor. I plotted a curve of its strength at a NA > Skimmer and while there are a couple peak-ups, I don't think the peak-ups > are necessarily tied to the meteor strike. You can see the curve I plotted > here: http://n3qe.org/ly7m-meteor.png > > Tim N3QE > > > On Wed, May 24, 2017 at 4:20 PM, K1FZ-Bruce <k...@myfairpoint.net> wrote: > > > > > Watch " Meteor Strike" on some PBS TV stations tonight. Check your > > local TV listings for time and channel. > > > > Did anyone notice an increase in low band propagation for awhile, after > > this rather large event ? > > > > 73 > > Bruce-K1FZ > > http://www.qsl.net/k1fz/beverage_antenna.html > > _________________ > > Topband Reflector Archives - http://www.contesting.com/_topband > > > > > ------------------------------ > > Message: 3 > Date: Wed, 24 May 2017 22:14:11 -0400 > From: "K1FZ-Bruce" <k...@myfairpoint.net> > To: tsho...@gmail.com, "Topband" <topband@contesting.com> > Subject: Re: Topband: propagation question. > Message-ID: <201705250214.v4p2ebdc022...@mail22c26.carrierzone.com> > Content-Type: text/plain; charset=UTF-8 > > > Tim, > > Many thanks for your research, > > How do the numbers compare to other years, the same contest ?. > > Bruce-k1fz > > > > > > On Wed, 24 May 2017 21:18:50 -0400, Tim Shoppa wrote: > > Bruce, I went and looked at reversebeacon statistics for the two nights > before the Chelyabinsk meteor (that would be 13 Feb 2013 and 14 Feb 2013) > as well as the night of the strike (15 Feb 2013). The strike was at 0320Z. > I specifically looked for 160M EU-NA transatlantic reversebeacon spots and > counted the number of such spots. > > On 13 Feb 2013, there were 636 EU-NA reversebeacon spots. > On 14 Feb 2013, there were 776 EU-NA reversebeacon spots. > On 15 Feb 2013, there were 1984 EU-NA reversebeacon spots. > > HOWEVER, there is a confounding factor, which is that ARRL DX CW started on > 16 Feb 2013. I think the pickup in spots on 15 Feb could be entirely > explained by stations warming up and checking out the night before the > night before the big contest. > > There was one station, LY7M, that was on 160M for several hours before and > several hours after the meteor. I plotted a curve of its strength at a NA > Skimmer and while there are a couple peak-ups, I don't think the peak-ups > are necessarily tied to the meteor strike. You can see the curve I plotted > here: http://n3qe.org/ly7m-meteor.png > > Tim N3QE > > > On Wed, May 24, 2017 at 4:20 PM, K1FZ-Bruce wrote: > > > > > Watch " Meteor Strike" on some PBS TV stations tonight. Check your > > local TV listings for time and channel. > > > > Did anyone notice an increase in low band propagation for awhile, after > > this rather large event ? > > > > 73 > > Bruce-K1FZ > > http://www.qsl.net/k1fz/beverage_antenna.html > > _________________ > > Topband Reflector Archives - http://www.contesting.com/_topband > > > > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > Topband mailing list > Topband@contesting.com > http://lists.contesting.com/mailman/listinfo/topband > > > ------------------------------ > > End of Topband Digest, Vol 173, Issue 22 > **************************************** > _________________ Topband Reflector Archives - http://www.contesting.com/_topband