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An elevated solar wind stream moved past Earth late on July 4th and early July 5th, sending the Kp index to three. This was the most significant solar event of the last week as otherwise the Sun remained calm.

The Kp index remained at one or zero for the rest of the week, which no doubt helped boost propagation.

There were no sunspots this week after the minor group, region 2766 that pushed the sunspot number to 12, vanished on Monday. Note that the number 12 represents two sunspots (2) in one group (+10), so it wasn’t quite as exciting as it sounds.

Otherwise there was little to write home about. Sporadic E continues to be the major mode of propagation, although there were days when it was more sporadic than the previous week!

We have probably seen the best of the Es season now, although it should keep running until late August, albeit at lower levels. If previous experience is anything to go on we can expect a few bigger openings yet so please don’t write off 10 metres completely.

The NOAA space weather prediction for next week doesn’t exactly inspire either. It has the solar flux index pegged at 68-69 with a maximum planetary Kp index of two.

The STEREO ahead spacecraft view shows very little in the way of forthcoming activity, other than a few bright spots in the extreme ultraviolet view that may or may not come to something as the Sun rotates.

Looking for some good news, according to the Chilton ionosonde data, 20 metres is generally staying open on 3,000km paths until around midnight on most nights, although you may find 30 metres more reliable.

VHF and up

It’s looking like another week of changes with last week’s unsettled weather making way for a new ridge of high pressure over this weekend.

This means that, after a period of potential GHz bands rain scatter, we are now heading into some Tropo prospects, especially in the south for paths into France and across Biscay to Spain.

Low pressure is never far away to the north and this is particularly true after mid-week when a low passes close to Scotland and showery fronts are driven across the country to give a few rain scatter options again.

The Sporadic E season is still out there and as usual the best advice is to check the bands and clusters for activity mid-morning and again late afternoon and early evening.

Moon declination goes positive today and 144 MHz sky noise is low but rising as the week progresses. Apogee is tonight so path losses will be falling throughout the week. Peak Moon declination is just a week away, meaning longer Moon windows – time to get that EME system up and running again.

There are no major meteor showers this week, so continue to operate around local dawn for the best chance of random meteor scatter contacts.

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NARC Training 2020

Amateur Radio Training with NARC

Training is very important to NARC because we realise this is how new people come into the hobby and attain their Foundation, Intermediate and Advance Amateur Radio licenses.
We are pleased to offer courses which are based on demand and our programme of other events and activities. To register your interest for a course and exam please email your name and contact details, together with which level of training course you are waiting for,  to the Club Exam Secretary David Palmer G7URP: This email address is being protected from spambots. You need JavaScript enabled to view it.

Club meetings

 CLUB MEETINGS - NARC Live!

During the current Covid-19 pandemic when the club cannot physically meet, the club now broadcasts its own magazine show NARC Live! every Wednesday with news, features and guests.
It is streamed online live from 19.30 BST at the following places:

• Facebook Live:
www.facebook.com/norfolkamateurradioclub/

• BATC Streaming service:
www.batc.org.uk/live/NARC

The club meets virtually every Wednesday throughout the year in the sixth form centre of the City of Norwich School, Eaton Road, Norwich, NR4 6PP from 1900-2130.

We welcome anyone of any age, gender or ability and who enjoys experimenting with radio and electronics to come and meet us and see what we do in our hobby.

Please see above ONLINE tab for details of the club programme and below this piece for contacts of club official.

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