sabato 4 Luglio 2020
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Propagazione

Propagation outlook from SWPC Boulder June 8

:Product: Weekly Highlights and Forecasts :Issued: 2020 Jun 08 0136 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 01 – 07 June 2020 Solar activity was at very low levels …

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The K7RA Solar Update

ARRL 06/05/2020 Two new sunspots emerged this week, with a one-day gap on Tuesday with no sunspot. Average daily sunspot numbers rose from 0 last week to 3.3 in this week, May 28 through June 3. It seems odd, but average daily solar flux was 69.6, unchanged from the previous seven days. Average daily planetary A index rose from 4 …

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Propagation News – 7 June 2020

RSGB June 5, 2020 Well, the excitement of sporadic E propagation continued last week. There were extensive openings on 20 to 10 metres, which resulted in very short-skip openings at times. Paul, GM4ULS in Perth reports working lots of G stations on the South Coast of England on 20 metres on Wednesday, and the skip ran as short as a …

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Propagation outlook from SWPC Boulder

:Product: Weekly Highlights and Forecasts :Issued: 2020 Jun 01 0138 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 25 – 31 May 2020 Solar activity reached moderate levels on 29 …

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Propagation News – 31 May 2020

This last week was dominated by a quiet Sun, but extensive sporadic E openings. We had a solar flux index hovering around 70 and zero sunspots, nevertheless we have had good F2-layer propagation on HF and multi-hop sporadic E bringing DX excitement. Last weekend saw FT8 openings on 10 metres to the Caribbean and South America, even after sunset. Laurie, …

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The K7RA Solar Update

No significant solar activity over the past week, and still no sunspots observed since the end of April. According to Spaceweather.com, the percentage of spotless days in 2020 has inched up another notch to 79%. The percentage of days showing no sunspots for all of 2019 was 77%. Average daily solar flux for last week was 69.6, up from 69 …

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Propagation outlook from SWPC, Boulder

:Product: Weekly Highlights and Forecasts :Issued: 2020 May 25 0124 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 18 – 24 May 2020 Solar activity was at very low levels …

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Propagation News – 24 May 2020

RSGB May 22, 2020 Last week was dominated by extensive sporadic E openings that made 10 metres sound like 20 metres on a good day. The openings were steady and stable, with lots of stations around Europe being very workable. These openings extended to multi-hop as well, with Chris, VO1CH being heard on 10m FT8 at 1240UTC on Monday, the …

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The K7RA Solar Update

ARRL 05/22/2020 Still no sunspots to report. Spaceweather.com reported on May 20 that the current stretch of days with no sunspots has now reached 18. And with that the 2020 percentage of days with no sunspots has risen to 77%, equal to 2019. Until May 15 that statistic stood at 76%. Average daily solar flux for the week rose to …

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Propagation outlook from SWPC Boulder

:Product: Weekly Highlights and Forecasts :Issued: 2020 May 18 0322 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 11 – 17 May 2020 Solar activity was very low. The solar …

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Propagation News – 17 May 2020

RSGB May 15, 2020 We had another week dominated by sporadic E openings. While the Sun remained quiet with zero sunspots, sporadic E proved to be the major mode of propagation. It offered both single and multi-hop openings, with 10m being open to Spain, Portugal and beyond on most days. Likely multi-hop paths have seen openings to Chad, Mauritania, St …

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The K7RA Solar Update

ARRL 05/15/2020 No sunspots appeared last week. The previous seven days had only one big sunspot group on one day, with a sunspot number of 35. Over the seven-day period this averaged out to a sunspot number of 5, so average daily sunspot numbers declined from 5 to 0 this week. Average daily solar flux also declined, by one point …

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