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Author Topic: Years of Historically Great Propagation?  (Read 431 times)

KA5QMA

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Years of Historically Great Propagation?
« on: May 03, 2022, 08:59:08 PM »

Can someone provide information on past years of historically great propagation and the solar flux numbers associated with them? I've heard accounts of dummy load DX QSOs in the late 50s and 60s.
Thanks
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WA2VUY

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Re: Years of Historically Great Propagation?
« Reply #1 on: May 04, 2022, 04:20:57 AM »

See chart https://qrznow.com/the-k7ra-solar-update-22/
My understanding is that cycle 19 was the best, I wasn't qrv for that. I can say from experience that cycles 21 and 22 were outstanding/amazing eventhough they didn't reach the #19 numbers.
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GRUMPY2021

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Re: Years of Historically Great Propagation?
« Reply #2 on: May 04, 2022, 04:22:38 AM »

Google is a great tool for questions like this.   Here is a link I found in about 5 seconds that has some interesting solar flux indexes.   Wow... cycle 19 about midway through SFI of 340.   

https://solen.info/solar/history/
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K1VSK

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Re: Years of Historically Great Propagation?
« Reply #3 on: May 04, 2022, 05:43:31 AM »

Can someone provide information on past years of historically great propagation and the solar flux numbers associated with them? I've heard accounts of dummy load DX QSOs in the late 50s and 60s.
Thanks
As the saying goes, everything is relative.

While the solar flux peak varies between cycles, everyone still competed for contacts in past cycles as we do today and the best antenna always won, even in high solar peak years.

The story isn’t all about flux number comparisons. It’s rather more about who has the better antenna, then and now.
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W1VT

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Re: Years of Historically Great Propagation?
« Reply #4 on: May 04, 2022, 06:16:52 AM »

When I was a kid the other hams were envious of the 2 element Quad I put up for 10 and 15 meters.  I could work Indian Ocean DX with QRP that most of the time, nobody else could even hear!  The guys with beams and towers on flat land had brief openings into that part of the world.  I had the luxury of hours long band openings!  I was on sloping ground and had amazing low angle radiation, which I later verified by running High Frequency Terrain Analysis, companion software for the ARRL Antenna Book.  If a rare DX station came on and I had a clear view of the horizon, which covered a lot of territory outside Europe, I was able to work it.
« Last Edit: May 04, 2022, 06:19:49 AM by W1VT »
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WB8VLC

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Re: Years of Historically Great Propagation?
« Reply #5 on: May 04, 2022, 10:01:34 AM »

I had a similar experience as W1VT did but mine was during the big solar cycle of 1989.

Very high solar numbers along with an excellent QTH make it even more amazing even with low power and simple antennas.

I was on top of a 8500 foot peak in Tucson working as a broadcast engineer with 360 degree views all directions.

All I had was a 25 watt Uniden HR2510 on 10 meters only and a 10 meter home brew zip cord dipole.

When I wasn't working on a TV or FM transmitter I had lunch hours and midnite time to work 10 meters on all modes (am/fm/ssb and cw) and I was working africa, the indian ocean, all over asia, Eu, South america, the  south pacific, anatartica and it was mostly on 29.6 MHz FM with that crappy 25 watt Uniden 10 meter radio and the dipole arranged as an inverted V in a 15 foot tall scrub oak tree.

 I remember many mobiles using similar low power FM rigs world wide with many of them in Europe, New Zealand and South Africa running erands for their wife's while out mobile working me on 29.6 FM.


From my 8500 foot QTH I had 24/7 openings and I remember friends of mine in Phoenix 125 miles north of me and others just south of flagstaff 200 miles north listening to me on 29.6 FM at midnite saying that they could only faintly copy the DX that I was working.


Even now with a 4 element 10 meter yagi at 30 feet from my mediocre 500 foot elevation QTH in NW Oregon, and even though I now have 500 watts I still wish for those days of 1989 and the amazing propagation.
« Last Edit: May 04, 2022, 10:03:41 AM by WB8VLC »
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KB7TT

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Re: Years of Historically Great Propagation?
« Reply #6 on: May 04, 2022, 10:59:40 AM »

To my untrained brain this cycle looks a lot like cycle 21 which I believe started in 1989... Good one!@
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AF5CC

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Re: Years of Historically Great Propagation?
« Reply #7 on: May 04, 2022, 11:31:34 AM »

Cycle 21 peaked around 1979.  I was licensed in 1980 and got on the air as a novice in 1981 and upgraded to general in 1982 so caught the latter half of it.  Yes, there was still great propagation on 20 meters in 1982.  Hope this cycle replicates it!

73 John AF5CC
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WB8VLC

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Re: Years of Historically Great Propagation?
« Reply #8 on: May 04, 2022, 12:47:33 PM »

So far this one is nothing like 1979 nor the 1989 cycle.

In the 1979 cycle I was working mainly 15 meters and routinely would qso with mobile stations in Europe, Hawaii and Africa an other locations.

One ham, a ZE in Rhodesia, who I frequently talked to on  15 SSB  used what he called a Horical mobile antenna, it was around a 4 foot vertical element then bent horizontal to meet the Rhodesian mobile laws for antennas hence the Horical whip as he called it.


There were other world wide hams also operating frequently on 15ssb/cw who were active during the 1979 peak along with one frequently heard ham from Oman who was a regular on 15 SSB, then there were the other SSB ops such as too many to mention 4X4 guys from Israel and numerous other middle east hams , then the Indian Ocean guys such as Mayotte Island, Diego Garcia and other Indian Ocean hams.

The above nice dx along with years of VR6TC in Pitcairn Island and an endless supply of  Z'Ls, VK's, too many rare pacific hams to mention but some which were memorable were KC6 Caroline Island, numerous Midway, Guam, thousands of JA's and other hams throughout the  Pacific and Asia  made the late 1970's a DX heaven.

Then the 1989 peak and it was even better than 1979, in fact so much that worldwide FM qso's with 25 watts were the norm on 29.6 FM whereas the previous cycle was mostly SSB/CW.

So far with this cycle and even though many so called solar experts say that this cycle is moving along great, it is still nothing like the years from 1975 to 1979 and 1986 to 1991 from looking back at my logs.  Even the start of the 1989 peak around 1985 were great years and this cycles start still does not compare to the start of those cycles.

 As for the late 1950's peak? well I was born at the end of the 50's but my father in law and his 3 brothers told me stories about the 1950 years and the dx that they worked and it made the late 70 and late 80's look like  the hams who came after the 1960's got royally short changed.
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AC7CW

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Re: Years of Historically Great Propagation?
« Reply #9 on: May 05, 2022, 10:01:58 AM »

50's propagation was incredible. I had an awful wire antenna, 75 watts and worked the world on 40M. The higher bands were much better but I didn't have a rx for them. I knew a kid that got DXCC on 15Meters with 75 watts and a beam. He did that with his Novice license that was only good for one year.
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Novice 1958, 20WPM Extra now... (and get off my lawn)

KC6RWI

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Re: Years of Historically Great Propagation?
« Reply #10 on: May 05, 2022, 10:13:29 PM »

Solar cycle 21 was the one that got me interested in radio, and I would have not known anything about the solar cycle back then.
11meter SSB was magical in way it would propagate, stations all over and some were in the freeband.
I remember the bands with alot less noise, I don't know if it was the exceptional conditions or the lack  switched mode power supplies.
I emailed this well know collector of WW2 radios, and he replied making  an upsetting statement, he said we don"t have solar cycles like in the past anymore, hate to hear that.

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W1VT

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Re: Years of Historically Great Propagation?
« Reply #11 on: May 06, 2022, 04:13:51 AM »

In the old days most hams had quiet locations.  If you had a noisy florescent lamp  it was usually easy to find and fix.  It was usually switched on when you needed a lot of light and didn't mind the ugly green cast.  Now, a quiet location may be the exception, now that homes have dozens of switching power supplies.  It only takes one bad supply to trash the bands with noise.  If you are serious about working DX you may have to work at improving how well you hear in order to work a lot of DX.  I think most hams need the practice of routinely working DX to get good at it. 
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KC6RWI

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Re: Years of Historically Great Propagation?
« Reply #12 on: May 06, 2022, 07:14:49 AM »

I would have loved to hear what cycle 19 was like, course even the population was less and very few smps.
I guess the closest I can get to that is if we had a large power outage during the height of the current cycle,
oh, thats right, the solar panels will still be on, can't win.
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W1VT

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Re: Years of Historically Great Propagation?
« Reply #13 on: May 06, 2022, 08:03:24 AM »

A quiet spot to operate mobile or portable HF may be the best option for most hams to experience a exceptional radio propagation.
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AF5CC

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Re: Years of Historically Great Propagation?
« Reply #14 on: May 08, 2022, 02:08:56 PM »

I have done a few mobile road trips and it is amazing how quiet the rural interstates can be.  CW signals that don't even move the S meter come through crystal clear.  I was licensed in 1980 so I can remember the days when noise moving the S meter was the exception rather than the rule.

Most HF rigs today are way more sensitive than they need to be, which doesn't help things at all either.

73 John AF5CC
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