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Propagazione

Propagation outlook from SWPC Bouldler June 22

:Product: Weekly Highlights and Forecasts :Issued: 2020 Jun 22 0212 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 15 – 21 June 2020 Solar activity was very low throughout the …

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Propagation News – 21 June 2020

We had another week dominated by sporadic E HF contacts. Ten metres has been open daily to Europe and often until very late at night. There have been reports of USA and Japanese FT8 contacts from the UK during the day, continuing almost to midnight. By Thursday signal levels appeared to be dropping off at first but, by 1100UTC, Canada …

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The K7RA Solar Update

We just experienced a nearly two-week period of sunspots appearing every day. It’s been quite some time since we’ve witnessed a continuous string of sunspot activity such as what we’ve experienced over the past two weeks. Back on January 24 through February 1, 2020 were nine consecutive days with sunspot activity, but to find any longer period of sunspot appearances …

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Propagation outlook from SWPC Boulder June 15

:Product: Weekly Highlights and Forecasts :Issued: 2020 Jun 15 0042 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 08 – 14 June 2020 Solar activity was at very low levels …

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Propagation News – 14 June 2020

Well, we’ve finally got a good Solar Cycle 25 sunspot to talk about! Region 2765 was a big one with a number of spots appearing, taking the sunspot number to 17 at one point. But by the time it had rotated into the centre of the Sun, the spot had started to decline a little. While the sunspot had little …

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The K7RA Solar Update

Sunspots made a solid reappearance over this reporting week (June 4-10) with average daily sunspot number rising from 3.3 to 14. As expected, solar flux also increased, and the average daily 10.7 cm solar flux rose from 69.6 to 71.3. With renewed solar activity, so many radio amateurs staying home, and the increasing popularity of new weak signal modes, there …

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Geomagnetic Indices, May

GEOMAGNETIC INDICES – Compiled by: Phil Bytheway Email: DXM.EiC@gmail.com Geomagnetic Summary May 1 2020 through May 31 2020 Tabulated from WWV on-line status daily (K @ 0000 UTC): ftp://ftp.swpc.noaa.gov/pub/forecasts/wwv/ Flux A K Space Wx 1 70 6 1 no storms 2 69 5 1 no storms 3 69 5 3 no storms 4 69 6 2 no storms 5 69 …

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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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