Date
1 - 12 of 12
Solar Flux
Willem Van gaalen
No worries... with 30 Watts output FT8, into a halve wave wiredipole, I worked 41 DXCC on 6m, confirmed by QRZ/LOTW! Good dx hunting and 73 de Wim, pa0wjg Op 4-8-2022 om 21:51 schreef Peter
Dougherty:
Interesting. I have DXCC on 80, 40, 30, 20, 17, 15, 12 and 10 meters,Don't be so sure about that! I started on 6m in 2005 with a 6M5 Yagi at 35', and using SSB and CW, I managed to get to about 70. I went QRO to 1500W, changed the 6M5 out for a 6 element LFA, and this season not only did I hit 100, but I'm up to 111 entities and just shy of 850 grid squares. If you can get even a little 3 or 4 element Yagi or preferably a Loop Fed Array, and a bit more than 100W there's no reason you can't hit 100 entities in a few years with typical seasonal Es and a bit of luck and time at the radio. You can do it! |
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Peter Dougherty
Interesting. I have DXCC on 80, 40, 30, 20, 17, 15, 12 and 10 meters,Don't be so sure about that! I started on 6m in 2005 with a 6M5 Yagi at 35', and using SSB and CW, I managed to get to about 70. I went QRO to 1500W, changed the 6M5 out for a 6 element LFA, and this season not only did I hit 100, but I'm up to 111 entities and just shy of 850 grid squares. If you can get even a little 3 or 4 element Yagi or preferably a Loop Fed Array, and a bit more than 100W there's no reason you can't hit 100 entities in a few years with typical seasonal Es and a bit of luck and time at the radio. You can do it! |
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Stan Gammons
Hi Franco,
On 7/31/22 06:41, 3a2mw Franco Lucioni wrote: Stan, you can do it !Thanks for the encouragement. I'll try to make DXCC on 6 meters. It would be good to work you on 6 meters. I'd have Monaco on 5 bands if we are able to have a QSO :) One of my current projects is modifying a Larcan 1Kw lo-lo band (VHF TV channel 4) amp to 6 meters. It's based on worked done by K1WHS. No real hurry on that project, but I'm making progress slowly but surely. My old eyes have a hard time doing surface mount work anymore without 6 or 8x magnification. Eyes and hands aren't what they were 30 years ago. 73 Stan KM4HQE |
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Dave AA6YQ
+ AA6YQ comments below
the 30 day history, can that be configured to any 30 day period, or only the last 30/31? + SpotCollector's "Solar History" window can display SFI, A, and K values for the most recent 31 days. Information from more than one solar revolution ago is not useful in forecasting SFI values for the current solar revolution. 73, Dave, AA6YQ |
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Jamie WW3S
the 30 day history, can that be configured to any 30 day period, or only the last 30/31?
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Dave AA6YQ
# more AA6YQ comments below
Dave - I tried what you said in Spot Collector - History Button, then uncheck A & K boxes w/ SFI checked and I get a Blank graph. I must be missing something. Pls advise.+ That means none of your spot sources are conveying "WWV spots". Some DX clusters may require you to enter a command to enable WWV spots; other may simply not convey them. # see the "WWV Spots" section of https://www.dxlabsuite.com/dxlabwiki/CollectingSpots
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Dave AA6YQ
+ AA6YQ comments below
Dave - I tried what you said in Spot Collector - History Button, then uncheck A & K boxes w/ SFI checked and I get a Blank graph. I must be missing something. Pls advise.+ That means none of your spot sources are conveying "WWV spots". Some DX clusters may require you to enter a command to enable WWV spots; other may simply not convey them. 73, Dave, AA6YQ |
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Alan Swinger
Dave - I tried what you said in Spot Collector - History Button, then uncheck A & K boxes w/ SFI checked and I get a Blank graph. I must be missing something. Pls advise. Tks - alan K9MBQ On Sat, Jul 30, 2022 at 3:23 PM Dave AA6YQ <aa6yq@...> wrote: As every DXer, his/her immediate family, and close friends know, radiation from our sun -- the "solar flux" -- ionize atoms and |
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WA8Y Steven
I am watching and hoping for the 27 day repeat. I erected my 30 ft FD tower and new 5 element yagi on July 2nd.
I am using RAT to follow my progress. Since July 2nd I have worked 45 states, 10 Canadian provinces, 21 Countries on 4 continents! Steve WA8Y |
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Franco 3a2mw
Stan, you can do it !
You have your "home garden" of Carribean and South America, and it will help very much increasing the number. I work 6m since the year 2000 with a 1/4 wave vertical and 100w, and I have already 86 DXCC confirmed in the band. My "home garden" is Europe, but with the help of TEP (Trans Equatorial Propagation) Southern African DXCCs and some S. American Countries are confirmed. Asia is not so far, and the result is in the 87/86 DXCCs. The FT8 mode helped very much in the last years, giving us the 15/20 dB advantage to CW. So, go on and try ! 73 Franco 3a2mw |
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Stan Gammons
Hi Dave,
On 7/30/22 14:22, Dave AA6YQ wrote: As we approach the peak of the 11-year solar cycle over the coming years, maybe we'll see the solar flux increase enough to supportInteresting. I have DXCC on 80, 40, 30, 20, 17, 15, 12 and 10 meters, but I've only worked 15 DXCC entities on 6 meters. That was using FT8 with 100 watts and a hex beam. I guess DL is the farthest I've worked. Not F2 propagation? Doubt I'll get DXCC on 6 meters in my lifetime. 73 Stan KM4HQE |
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Dave AA6YQ
As every DXer, his/her immediate family, and close friends know, radiation from our sun -- the "solar flux" -- ionize atoms and
molecules in the earth's ionosphere, making it more reflective of HF signals, reducing path loss, and thereby enabling more DX QSOs on 20m and up. If you click the History button in the WWV panel in the upper-left corner of SpotCollector's Main window, you will see a window that can display a 31-day history of three parameters: SFI - the Solar Flux Index A - the geomagnetic A-index K - the geomagnetic K index Check the SFI box in this window's lower-left corner, uncheck the A and K boxes in its lower-right corner, and you will this graph of the solar flux index: www.dxlabsuite.com/spotcollector/SFI%202022-07-30.jpg As the graph reveals, the solar flux increased from the low 90s at end of June to a peak in the mid 170s in mid-July, and then gracefully fell back to its current value of 93. The solar flux increases with the number of sunspots on the sun's surface. New sunspots continuously form, and old sunspots continuously disappear. The sun rotates at the rate of one revolution every 27 days. Many sunspots survive for longer than one solar revolution. Thus a reasonable prediction of future solar flux can be made from the solar flux of 27 days ago; that's why the "4" in the date axis in the above graph is rendered in red font: it shows the solar flux one solar revolution ago. It will be interesting to see if the solar flux again rises over the coming days as it did during the first half of July. As we approach the peak of the 11-year solar cycle over the coming years, maybe we'll see the solar flux increase enough to support F2 propagation on 6m - a phenomenon I have never experienced during my 32 years as a ham and DXer. 73, Dave, AA6YQ |
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