giovedì 12 Dicembre 2019
Breaking News
Home > Propagazione

Propagazione

Propagation outlook from Boulder

:Product: Weekly Highlights and Forecasts :Issued: 2019 Dec 09 0053 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 02 – 08 December 2019 Solar activity was very low throughout the …

Read More »

The K7RA Solar Update

No sunspots again this week. This run of zero sunspots has persisted for over three weeks. In last week’s bulletin, we erroneously said that average daily sunspot number for the week was 70.4, but as KB8W pointed out this was the value of average daily solar flux. Average daily solar flux for this week, November 28 through December 4, was …

Read More »

Propagation News – 8 December 2019

RSGB December 6, 2019 We had very settled geomagnetic conditions last week with the Kp index not rising above two and often sitting at zero. The solar flux index sat at 70/71, reflecting zero sunspots and a blank Sun. As we approach midwinter it is a good time to concentrate on the lower bands, with both 80 and 160 metres …

Read More »

Propagation outlook from Boulder

:Product: Weekly Highlights and Forecasts :Issued: 2019 Dec 02 0130 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 November – 01 December 2019 Solar activity was very low. No …

Read More »

The K7RA Solar Update

Another week went by with no sunspots. Average daily sunspot number this week rose from 69.9 to 70.4. Average planetary A index rose from 3.6 to 8.3. Predicted solar flux is 70 on November 29 through December 6, 69 on December 7-8, 70 on December 9-22, 69 on December 23 through January 4, and 70 on January 5-12. Planetary A …

Read More »

Propagation News – 1 December 2019

Last week’s CQ Worldwide CW event proved that a contest can really generate activity on the HF bands, despite poor propagation. Despite lukewarm predictions during this period near sunspot minimum, there was plenty of DX to be had, despite a solar flux index of only around 70, and zero sunspots. HF bands as high as 15 metres were open, with …

Read More »

Propagation outlook from Boulder

:Product: Weekly Highlights and Forecasts :Issued: 2019 Nov 25 0142 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 November 2019 Solar activity was very low. No sunspots …

Read More »

The K7RA Solar Update

We have not seen any sunspots since November 2, and at that time they were only visible for two days, and prior to that no sunspots since October 2. According to Spaceweather.com, that recent sunspot, though very short lived, was a new Cycle 25 spot: https://bit.ly/2KJ7cyy The average daily solar flux this week dipped slightly from 70.3 to 69.9. Geomagnetic …

Read More »

Propagation News – 24 November 2019

The predicted poor geomagnetic conditions forecast for late on the 16th didn’t amount to much. In the event, the Kp index rose to three before settling back down again quite quickly. The Sun remained spotless all week again as we get close to the minimum. As such, HF propagation was relatively poor all week. Daytime critical frequencies have mostly been …

Read More »

Propagation outlook from Boulder

:Product: Weekly Highlights and Forecasts :Issued: 2019 Nov 18 0115 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 November 2019 Solar activity was very low. Region 2752 …

Read More »

The K7RA Solar Update

Even with little to no solar activity, it is amazing how many long-distance HF contacts are possible, even without using weak signal modes such as FT8. Recent DXpeditions, such as the ones on Pitcairn Island and Marquesas, had little trouble piling up the contacts, even on ten meters. It helps that we are in the fall season. No sunspots over …

Read More »

Propagation News – 17 November 2019

RSGB November 15, 2019 Last week was pretty good in terms of HF propagation. Other than a slight blip in the Kp index on Monday, the 11th, when it rose to three due to a weak coronal hole stream, geomagnetic conditions remained settled. The Sun remained spot-free all week, although a new region was noted on the 13th. Region 2752 …

Read More »
Copy Protected by Chetan's WP-Copyprotect.