[amsat-bb] Re: LU or other DX on HO-68

Patrick STODDARD (WD9EWK/VA7EWK) amsat-bb at wd9ewk.net
Mon Dec 28 09:05:02 PST 2009

Hi Sebastian!

> That was LU5BOJ/O from FG75 whom I worked at 01:52 UTC.
> We worked briefly as he was about to lose the bird.  Not sure
> why he used the portable designation.  It was O for Oscar as
> per his phonetics, and not a zero.  Perhaps it's required in his
> country while working through a satellite?

You're 100% correct.

That callsign LU5BOJ/O would be a valid call in Argentina.  Unlike
in many places like the continental US where the digit indicates the
area where the call was issued, in Argentina the first letter after the
digit is used for that.  LU5BOJ is a call issued for the city of Buenos
Aires (also known as "Capital Federal"), separate from the province
of the same name that surrounds that city.  It is like how the US
capital city Washington DC is separate from the surrounding states
of Maryland and Virginia.  The "/O" shows he was operating from
somewhere outside his home "province"; in this case, LU5BOJ was
in Salta province in the northwest of the country.

You can see a map and how those indicators match up (thanks to
my friend Diego LU8ADX) at:


> That's the first station I have heard from Argentina on any of the birds.

Congratulations!  Maybe more will show up on HO-68 or even AO-7
if equipped to work the linear transponders.



(I was down there in 2004, operating briefly as LU/WD9EWK.  Foreign
hams do not have to put the indicators like "/O" after their calls to show
where in the country they are operating from as the locals )

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