Tag Archives: AO-7

Apr 6 2013

Rare Scottish Grid Squares on the Satellites

2E1EUB Portable Satellite Station

2E1EUB Portable Satellite Station

Paul 2E1EUB has traveled to Scotland to activate some rare grid squares on the satellites using the call 2M1EUB.

On Saturday, April 6, he posted on the AMSAT Bulletin Board:

Limited Internet…. .Lots of deep snow….I’m in the middle of the wilds [Grid Square IO87NC]

Hope to be QRV on AO-7 from IO97 latter in the week. I’m driving to this Square by request

Will also be on FO-29 for limited QSO, I’ll keep you posted.

Just driven 500 miles (800 km) so need a kip.

AMSAT Bulletin Board http://www.amsat.org/amsat-new/tools/maillist/

RadCom article Getting started on satellites
https://amsat-uk.org/beginners/radcom-getting-started-on-satellites/

Jul 4 2012

OSCAR-7 DX Record Broken Again

Artists impression of OSCAR 7 in Space

Artists impression of OSCAR 7 in Space

Independence Day, July 4, saw AC0RA and OM3BD set another world distance record using the amateur radio satellite AMSAT-OSCAR-7 breaking their own record set just 48 hours earlier.

OSCAR 7 amateur radio satelliteThe new distance record was 7903.55km comfortably exceeding the previous record of 7849km.

Bill OM3BD in Grid Square JN88mf reports that Wyatt AC0RA once again woke up early and this time drove 150 miles to EN41ad. They had a 30 second contact at 0949Z to extend the record to 7903.55km.

Bill’s equipment comprised an FT847, 2 x 10 element yagi on 2m with SP2000 preamp, and an 8 element Yagi for 70cm while Wyatt had an FT-847, a 7 element Yagi on 2 meters and a 12 element Yagi on 70cm.

Recordings, pictures, and further info at http://qsl.net/nz5n/AO7record.htm

The article “Guide To OSCAR Operating” that was published in “The Best of OSCAR News” Volume 1 in 1980 notes that the maximum theoretic range of AO-7 without propagation enhancements was expected to be about 7900 km. In some ways it’s surprising that it’s taken 37 years since the launch of AO-7 before the extremes of range were tested to their limits.

Previous OSCAR-7 DX record http://www.uk.amsat.org/8728

10th Anniversary of OSCAR 7′s Return To Life http://www.uk.amsat.org/8524

Oscar 7 Information https://amsat-uk.org/satellites/communications/oscar-7/

Video of 2E0HTS Working the OSCAR-7 Satellite
https://amsat-uk.org/2012/01/26/2e0hts-working-the-oscar-7-satellite/

Jul 2 2012

New OSCAR-7 DX Record

Wyatt AC0RA and Bill OM3BD have broken the AMSAT-OSCAR-7 (AO-7) long distance (DX) record set in 2010.

Their GPS-measured 7849km QSO between grid squares EN31vx and JN88mf surpassed the prior 7843km record set by PY5LF and K3SZH in 2010.

Bill says that Wyatt did all the hard work by waking up at 3am, driving to a hill an hour away from his home, setting up his station, and working Bill before sunrise at 0955 UT on July 2.

Bill was running an FT847, 2 x 10 element yagi on 2m with SP2000 preamp, and an 8 element yagi for 70cm while Wyatt had an FT-847, a 7 element yagi on 2 meters and a 12 element yagi on 70cm.

It appears that an even longer distance is attainable, and Wyatt is looking for a suitable place from which they can try before Bill leaves Slovakia in mid-July.

Further information, pictures and recordings of the contact are at http://www.qsl.net/nz5n/AO7record.htm

2010 PY5LF and K3SZH AO-7 distance record http://www.southgatearc.org/news/january2010/new_ao7_record.htm

10th Anniversary of OSCAR 7′s Return To Life http://www.uk.amsat.org/8524

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