Harwell Amateur Radio Society (HARS) is a local club of amateur radio enthusiasts. Members come mainly from south Oxfordshire but the society has become well-known in the UK and throughout the world. It is affiliated to the Radio Society of Great Britain. Please have a look around our website for information about us, events we organise (including our annual rally), amateur radio information and our monthly QAV newsletter.


We meet at 19:45 on the second Thursday of every month at Chilton Village Hall. Please see our events page and look at the club calendar for details of all club events.

What's new?

Monday 5th March 2018:

Harwell ARS Annual Dinner, 12th May 2018

John, G6ZHB, has organised this year's annual dinner. We have a lovely menu at a great price. Please see the Annual Dinner event page for more information - we hope to see you there.

Sunday 11th February 2018:

Radio and Electronics Rally, 11th February 2018

Harwell ARS would like to say thank you to all traders, visitors, helpers and members for your support making this another successful event.  We look forward to seeing you all again next year!

Thursday 4th January 2018:

RAL Microwave Round Table, 17th June 2018

HARS will be hosting the RAL Microwave Round Table on Sunday 27th January 2018 at Chilton Village Hall, Chilton, Didcot.  More information to follow...

Sporadic Es

VHF Aurora : Status
144 MHz Es in EU : Status
70 MHz Es in EU : Status
50 MHz Es in EU : Status
144 MHz Es in NA : Status
From The DXrobot
Today's MUF & Es : Status

HF Propagation

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