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Geo- magnetic storm in progress
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Geo- magnetic storm in progress
On Thursday, August 2, 2012 3:24:52 PM UTC-4, (unknown) wrote:
http://www.swpc.noaa.gov/rt_plots/kp_3d.html Kp=5 Jim (MI) Using binoculars, I saw a huge sunspot at sunrise this morning, which for me was right after 6:00 a.m. outside Washington, DC. It looked like the transit of Venus. Really, it was that large and noticeable. The atmosphere was so humidity-laden that I could look at the sun through the binoculars without any needing any glass from a welder's mask. YMMV. |
#3
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Geo- magnetic storm in progress
On Thu, 2 Aug 2012 12:43:54 -0700 (PDT), Beloved Leader
wrote: On Thursday, August 2, 2012 3:24:52 PM UTC-4, (unknown) wrote: http://www.swpc.noaa.gov/rt_plots/kp_3d.html Kp=5 Jim (MI) Using binoculars, I saw a huge sunspot at sunrise this morning, which for me was right after 6:00 a.m. outside Washington, DC. It looked like the transit of Venus. Really, it was that large and noticeable. The atmosphere was so humidity-laden that I could look at the sun through the binoculars without any needing any glass from a welder's mask. YMMV. Do you remember the giant sunspots during the 1960's you could see with the naked eye? Solar flux over 200. I used to pick up WWV on 25 MHz on my cheap walkie-talkies. New Zealand used to blast in around midnight local time just below 18 MHz. Good times. Jim (MI) |
#5
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Geo- magnetic storm in progress
"Michael Black" wrote in message
ample.net... Do you remember the giant sunspots during the 1960's you could see with the naked eye? Solar flux over 200. I used to pick up WWV on 25 MHz on my cheap walkie-talkies. New Zealand used to blast in around midnight local time just below 18 MHz. Good times. I'm surprised you could hear 25MHz WWV on a cheap walkie talkie. Surely band conditions opened up that you'd get all the CBers first, so they'd wipe out WWV. The superregenerative receivers were wide band, but the CBers were a lot more plentiful. -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- In the 60's, there were relatively few CB'ers, and the ones that were around were legal 3 watt output. The big CB boom didn't happen until around 1971 or 72. WWV would have been what? About 50KW? At any rate, a lot more powerful than a 3W CB. |
#6
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Geo- magnetic storm in progress
"Michael Black" wrote in message
ample.net... Do you remember the giant sunspots during the 1960's you could see with the naked eye? Solar flux over 200. I used to pick up WWV on 25 MHz on my cheap walkie-talkies. New Zealand used to blast in around midnight local time just below 18 MHz. Good times. I'm surprised you could hear 25MHz WWV on a cheap walkie talkie. Surely band conditions opened up that you'd get all the CBers first, so they'd wipe out WWV. The superregenerative receivers were wide band, but the CBers were a lot more plentiful. -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- In the 60's, there were relatively few CB'ers, and the ones that were around were legal 3 watt output. The big CB boom didn't happen until around 1971 or 72. WWV would have been what? About 50KW? At any rate, a lot more powerful than a 3W CB. |
#7
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Geo- magnetic storm in progress
On 08/02/2012 05:37 PM, Brenda Ann wrote:
"Michael Black" wrote in message ample.net... Do you remember the giant sunspots during the 1960's you could see with the naked eye? Solar flux over 200. I used to pick up WWV on 25 MHz on my cheap walkie-talkies. New Zealand used to blast in around midnight local time just below 18 MHz. Good times. I'm surprised you could hear 25MHz WWV on a cheap walkie talkie. Surely band conditions opened up that you'd get all the CBers first, so they'd wipe out WWV. The superregenerative receivers were wide band, but the CBers were a lot more plentiful. -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- In the 60's, there were relatively few CB'ers, and the ones that were around were legal 3 watt output. The big CB boom didn't happen until around 1971 or 72. WWV would have been what? About 50KW? At any rate, a lot more powerful than a 3W CB. There was a big CB boom when it was first authorized. 1961 or so. My dad put a ground plane outside my window. |
#8
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Geo- magnetic storm in progress
On Fri, 3 Aug 2012, Brenda Ann wrote:
"Michael Black" wrote in message ample.net... Do you remember the giant sunspots during the 1960's you could see with the naked eye? Solar flux over 200. I used to pick up WWV on 25 MHz on my cheap walkie-talkies. New Zealand used to blast in around midnight local time just below 18 MHz. Good times. I'm surprised you could hear 25MHz WWV on a cheap walkie talkie. Surely band conditions opened up that you'd get all the CBers first, so they'd wipe out WWV. The superregenerative receivers were wide band, but the CBers were a lot more plentiful. -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- In the 60's, there were relatively few CB'ers, and the ones that were around were legal 3 watt output. The big CB boom didn't happen until around 1971 or 72. WWV would have been what? About 50KW? At any rate, a lot more powerful than a 3W CB. I didn't think there was that big a difference between "the sixties" and 1971 in regards to CB. It was a small number of channels, and almost from the start some were trying to DX. But even without those attempts, people realized early on that it was the wrong place in the spectrum, because with the skip in, you did get everyone else. I don't know what it was like when the boom hit a few years later, but with a crummy Hallicrafters S-120A receiver that had little selectivity and little sensitivity in 1971, when conditions were good, it wsa a solid whine across the CB band. I'm pretty sure that would have been the case even a few years earlier. The issue isn't so much density, but that skip might come in from multiple places, and each place was using those channels, so added up, it made the whine. Remember a superregen has virtually no selectivity, which is why he could hear WWV at 25MHz when CB started just below 27MHz. But that also meant no real selectivity, just a multitude of stations coming in when conditions were good. Michael |
#9
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Geo- magnetic storm in progress
On Thu, 2 Aug 2012, dave wrote:
On 08/02/2012 05:37 PM, Brenda Ann wrote: "Michael Black" wrote in message ample.net... Do you remember the giant sunspots during the 1960's you could see with the naked eye? Solar flux over 200. I used to pick up WWV on 25 MHz on my cheap walkie-talkies. New Zealand used to blast in around midnight local time just below 18 MHz. Good times. I'm surprised you could hear 25MHz WWV on a cheap walkie talkie. Surely band conditions opened up that you'd get all the CBers first, so they'd wipe out WWV. The superregenerative receivers were wide band, but the CBers were a lot more plentiful. -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- In the 60's, there were relatively few CB'ers, and the ones that were around were legal 3 watt output. The big CB boom didn't happen until around 1971 or 72. WWV would have been what? About 50KW? At any rate, a lot more powerful than a 3W CB. There was a big CB boom when it was first authorized. 1961 or so. My dad put a ground plane outside my window. People forget, it was relative. There had been demand, there had been dreaming, of "personal radio" for a long time. If nothing else, all those people who wanted to be hams but didn't want to take the test. And I gather the rules or the public knowledge was ambiguous to begin with. I've seen early issues of Popular Electronics where CB was promoted as a hobby band, not just peripheral things like 'build your own monitor scope" but outright columns about DXing. And it was no wasteland. They soon learned it was a lousy place in the spectrum for something like that, since even without people trying to work long distance, the long distance signals came in when conditions were good. One reason the Heathkit Sixers (supreregen receivers with simple transmitters, a variant of the CB version) did so well at 50Mhz was that when the band opened up, 5watts input was more than enough for DX, even witha lousy antenna. At 27MHz, the same thing applied, except the band opened up even more often. Michael |
#10
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Geo- magnetic storm in progress
On Fri, 3 Aug 2012 09:56:51 +0900, "Brenda Ann"
wrote: "Michael Black" wrote in message xample.net... Do you remember the giant sunspots during the 1960's you could see with the naked eye? Solar flux over 200. I used to pick up WWV on 25 MHz on my cheap walkie-talkies. New Zealand used to blast in around midnight local time just below 18 MHz. Good times. I'm surprised you could hear 25MHz WWV on a cheap walkie talkie. Surely band conditions opened up that you'd get all the CBers first, so they'd wipe out WWV. The superregenerative receivers were wide band, but the CBers were a lot more plentiful. -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- In the 60's, there were relatively few CB'ers, and the ones that were around were legal 3 watt output. The big CB boom didn't happen until around 1971 or 72. WWV would have been what? About 50KW? At any rate, a lot more powerful than a 3W CB. These were cheap crystal controlled transmit walkie talkies. The receive as mentioned was wideband and in the late afternoon during peak solar conditions (late 60's) WWV would fade in and out. I don't know what path the signal took,or even what frequency I was hearing - I assume it was 25 MHz - but I could hear it pretty well from northeast Detroit, MI. Jim (MI) |
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