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Propagation outlook from Boulder

:Product: Weekly Highlights and Forecasts :Issued: 2019 Oct 21 0358 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # Product description and SWPC contact on the Web # https://www.swpc.noaa.gov/content/subscription-services # # Weekly Highlights and Forecasts # Highlights of Solar and Geomagnetic Activity 14 – 20 October 2019 Solar activity was very low. The solar …

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The K7RA Solar Update

Solar activity remains very low. At the bottom of the sunspot cycle, any sunspot activity is fleeting. Again, another week passes with no sunspots at all. Spaceweather.com reports no sunspots for the past two weeks, and the total number of spotless days this year is now 213 days, or 73%, matching the percentage of spotless days in 2008. Average daily …

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Propagation News – 20 October 2019

The solar minimum continued last week with zero sunspots being recorded. The good news was that geomagnetic conditions were quite settled with a maximum Kp index of three recorded. Most of the week it was between zero and two, which meant that the HF bands were performing to seasonal averages. rsgb.org/propquest shows that maximum usable frequencies over a 3,000km path …

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Propagation outlook from Boulder

:Product: Weekly Highlights and Forecasts :Issued: 2019 Oct 14 0407 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # Product description and SWPC contact on the Web # https://www.swpc.noaa.gov/content/subscription-services # # Weekly Highlights and Forecasts # Highlights of Solar and Geomagnetic Activity 07 – 13 October 2019 Solar activity was very low. The solar …

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The K7RA Solar Update

No sunspots appeared over the past week, and in the prior week there were only two days with sunspots, so average daily sunspot number declined from 3.1 to 0. Average daily solar flux nudged higher, but just barely, from 67.6 to 67.8. Geomagnetic indicators were much lower this week, with average daily planetary A index retreating from 14.4 to 6.3, …

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Propagation News – 13 October 2019

We had a mixed bag of HF propagation over the last seven days, although Monday saw maximum usable frequencies over a 3,000km path climb above 21MHz. Conditions were less good on Thursday morning, mainly due to an elevated Kp index, which reached four thanks to an enhanced solar wind with a south-facing Bz component. There was DX to be had …

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Propagation outlook from Boulder

:Product: Weekly Highlights and Forecasts :Issued: 2019 Oct 07 0338 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # Product description and SWPC contact on the Web # https://www.swpc.noaa.gov/content/subscription-services # # Weekly Highlights and Forecasts # Highlights of Solar and Geomagnetic Activity 30 September – 06 October 2019 Solar activity was very low throughout …

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The K7RA Solar Update

A new sunspot from old Cycle 24 appeared on Tuesday and Wednesday of this week, then by Thursday was gone. The sunspot number was 11 on both days, the minimum non-zero sunspot number. Average daily solar flux rose only slightly from 67.3 to 67.6. Geomagnetic indices were higher. Average planetary A index rose from 5.4 to 14.4, and average mid-latitude …

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Propagation News – 6 October 2019

We had a real mixed bag in terms of HF propagation last week. The middle of the week through to Friday was actually quite good. Peter, G3XJE ran a very comprised 20m WSPR station from the Propagation Studies Committee stand at the National Hamfest and was picked up as far afield as the southern states in the USA. Saturday was …

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Propagation outlook from Boulder

:Product: Weekly Highlights and Forecasts :Issued: 2019 Sep 30 0233 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # Product description and SWPC contact on the Web # https://www.swpc.noaa.gov/content/subscription-services # # Weekly Highlights and Forecasts # Highlights of Solar and Geomagnetic Activity 23 – 29 September 2019 Solar activity was very low throughout the …

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Propagation News – 29 September 2019

RSGB September 27, 2019 Last week continued with zero sunspots, making it now more than 190 days this year that the solar surface has remained spotless. Many solar scientists predict that 2019 will have a total of more than 250 days without sunspots, which would make it the ninth most ‘spotless’ year since records began in 1849. Current research suggests …

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The K7RA Solar Update

Sorry, still no sunspots. Spaceweather.com reported on September 26 there were no sunspots for over 3 weeks, or 24 consecutive days. Summer transitioned through the autumnal equinox last Monday, and spaceweather.com noted that during the northern summer more than 89% of the days were spotless. So far in 2019 the spotless days percentage is 72%, equal to what it was …

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