ARLA/CLUSTER: 7947 km é o novo recorde de distancia para contactos via AO-7

João Costa > CT1FBF ct1fbf gmail.com
Terça-Feira, 8 de Setembro de 2015 - 13:34:49 WEST


New AO-7 distance record

On September 5, 2015 *Dave Swanson KG5CCI* completed a contact with *Manuel
EA5TT* over a record breaking distance of 7947 km via the Oscar 7 satellite
operating in mode B (432/145 MHz)

On the AMSAT Bulletin Board Dave KG5CCI writes:

On Saturday, September 5 at 1812 UTC I made a scheduled contact with
Manuel, EA5TT, using AO-7 Mode B, from the old US Forest Service Fire Tower
on top of 'Rich Mountain' here in extreme western Arkansas. My 10 digit
grid locator was EM24UQ01MU while Manuel is located in IM99SL48CX, in
Valencia, Spain.

Using the http://no.nonsense.ee/qth/map.html website for reference, this
equates to 7947.381 km which we believe to be a new record for AO-7 Mode B.

Like several of my extreme low elevation passes I've worked recently, I
captured my side of the QSO on video. The bad news is that the wind on top
of the tower, and limited room to operate meant a noisy audio feed and a
rather awkward camera angle, the good news is our callsign, grid, and
signal exchange was captured and clear. I have trimmed down the video to
just the 70 seconds or so (to expedite the rural upload) of the contact and
posted it to YouTube here:

Watch EA5TT Contact from Rich Mountain - Raw Footage



I fully plan on writing a more extensive post when I return from the
holiday weekend, and I will likely make a proper video with commentary and
data as well. I've made some really interesting observations when it comes
to Satellite operating from places with great 'Height Above Average
Terrain' and look forward to sharing this analysis with everyone.

Until then, catch you all on the birds, 73!

*Dave, KG5CCI/P*

OSCAR 7 http://amsat-uk.org/satellites/communications/oscar-7/
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