Home

HF News

Last week saw a mixed bag in terms of HF propagation with good conditions at times, but horrendous conditions mid week after a coronal mass ejection saw the Kp index shoot up to six.

Matter from the CME, which was accompanied by an M1.6 solar flare on October 9, hit the Earth in the early hours of October 12.

A geomagnetic storm then ensued and widespread visible aurora were reported at high latitudes.

On Tuesday MUFs were affected adversely with maxima over a 3,000km path down from 28MHz to less than 14MHz at times during the day.

By Thursday, and with the Kp index back down to between zero and two, signals had recovered to near normal levels, with a maximum daytime critical frequency of 7.125MHz being recorded on the Chilton Digisonde, which equates to more than 27MHz over a 3,000km path.

This does go to show that we can expect more CMEs, and poorer conditions at times, as we head towards solar maximum in a few years time.

Next week NOAA predicts the solar flux index will be in the range 85-90 with a maximum Kp index of four on the 19th.

So make the most of the Autumnal HF conditions and work as high in frequency as you can to minimise D-layer absorption.

VHF and up

The coming week’s weather will change to mixed and unsettled, with little chance of Tropo propagation, caused by periods of rain, showers and strong winds. At best we can hope for some rain scatter activity.

The exact time when these changes of type occur in our weather patterns is one of the hardest for the models to get right, but at the moment most suggest Sunday night into Monday.

Since the autumn is typically a good season for auroras, perhaps some warbling auroral notes will return again after last week when plenty of auroral QSOs were reported on 144 MHz. Sadly for the UK, they were almost exclusively for the more northerly Nordic countries. A few northern UK stations, namely G4KUX, MI0XXZ and GM4VVX reported a few auroral CW QSOs on the 12th.

The 21st sees the peak of the Orionids meteor shower with a ZHR of 15. Orionids are pieces of Comet 1P/Halley, famously known as Halley's comet. Add this to two small meteor showers, the Epsilon Geminids with a ZHR of three peaking on the 18th, and the Leonis Minoris with a ZHR of two peaking on the 24th, next week should be good for meteor scatter enthusiasts.

Moon declination goes positive again on Monday so we’ll see the Moon reaching higher elevations at its zenith. Path losses are still increasing as we are past perigee.

A seasonal reminder from the team to do your end of summer check on those antenna ropes and fixings before we see too many windy days.

Help

Hi if you need to purchase from the shop or post on the forum you will need to login to the website. If you do not have a login please register with us.Click one of the buttons below to start the process.
Your login will normally be your callsign.
Login

button3

button4
Coming Soon
button2

RSGB

rsgblogcnew

NARC are afflitated to the RSGB
Regional and National Winners of Club of the Year 2015

Lottery Funded

awards4all
Lottery funding enabled NARC to purchase direction finding equipment for training, competitions and as a fun family introduction to amateur radio

Committee Links

Use the links below to contact us

This email address is being protected from spambots. You need JavaScript enabled to view it.

This email address is being protected from spambots. You need JavaScript enabled to view it.

This email address is being protected from spambots. You need JavaScript enabled to view it.
This email address is being protected from spambots. You need JavaScript enabled to view it.

This email address is being protected from spambots. You need JavaScript enabled to view it.
This email address is being protected from spambots. You need JavaScript enabled to view it.

This email address is being protected from spambots. You need JavaScript enabled to view it.
This email address is being protected from spambots. You need JavaScript enabled to view it.
This email address is being protected from spambots. You need JavaScript enabled to view it.
Exam Sec

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.

Forum Latest