ARLA/CLUSTER: RSGB Propagation Studies Committee convoca os radioamadores para os experimentos da decorrer durante o Eclipse Solar de 20 de Março de 2015

[João Costa > CT1FBF]

Solar eclipse radio experiments, Friday March 20th 2015

With the solar eclipse now less than two weeks away, the *RSGB Propagation
Studies Committee* is keen to make sure that everyone is aware of the
activities taking place on the morning of Friday March 20 th 2015.

The partial eclipse starts in the Midlands at about 08:25 GMT on Friday
March 20th and ends at 10:41 GMT. Maximum eclipse will be at about 09:30
GMT.

The path of totality will pass north of the UK, over the Faroe Islands, but
the UK will experience up to 89% totality (depending upon where you live).

This is a great opportunity to try some experiments to see how the sun’s
ultra violet output affects our ionosphere and how some radio waves are
propagated.

On the morning of Friday March 20th 2015 the D layer above the UK may not
be as strong due to the eclipse, and you may be able to hear stations on
the lower bands – 1.8 MHz, 3.5 MHz and perhaps 7 MHz that would otherwise
be inaudible during the day.

To this end a number of activities are planned, including:

   - A simple medium wave (AM) experiment designed for schools
   - Other more detailed medium wave experiments using SDR receivers
   covering the whole spectrum, in conjunction with the Medium Wave Circle.
   - A RSGB QSO Party on 160, 80 and 40m, using CW and PSK63.
   - CW skimmers on 160, 80 and 40m to capture the signal/noise ratio of
   participants in the QSO party.
   - WSPR, including participants from other countries, including Thor TF4M
   in Iceland who will transmit on 160m. Andy G4JNT, near Southampton, will
   also run a 160m WSPR beacon
   - Opera transmissions on 477kHz
   - A CW beacon on 160m will be run by Derek G3RAU on 1810.05KHz, from
   0815 to 1115UTC from his QTH at Gainsborough, just north of Lincoln
   (IO93RJ).

All radio enthusiasts are encouraged to take part, either by trying the
medium wave experiment, monitoring the many WSPR and CW beacons that will
be active or taking part in the QSO party.

Details of all these activities, including links to more information and a
PDF of the schools experiment can be found at:

http://forums.thersgb.org/index.php?threads/partial-solar-eclipse-propagation-experiment-march-20th-2015.125/


*Steve G0KYA*Chairman,
RSGB Propagation Studies Committee
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