He would give his callsign and say, "QRZ?" and all hell would break loose for about a minute or so as stations from all over the world began shouting out their callsigns.
This is typical and if you are the DX station and are new
at it....very intimidating....and exhilarating!
My first experience operating DX was from 5R8 (Madagascar)
back in 2000. Certainly not near as rare as South Sudan, but
wanted enough that everytime I got on the air, in whatever
mode, a pileup wasn't far behind. Propagation was outstanding
in those days,
so almost everybody sounded loud to me!
It took me a few days to settle into the best rhythm & mode
for me. But in 2000 I was getting back into ham radio after
a 5 year hiatus. Looking back now, I would have done some
things a little differently.
I was on vacation for a month, not a true DXpedition,
and my sister was living there at the time, so it was an
ideal arrangement. I loved giving out a "new one" to lots
of folks, and lots of folks were grateful and thanked me.
Then again, quite a few were obnoxious, rude, shouters,
cutting in out of turn and disrupting things. It gets real old
real fast when you say "Standby, Standby....S51 Tango Station ONLY
please make your call" and some
jerk jumps in and shouts "Italy Tango Three Alpha Bravo Charlie"three times
I guess I am saying that not every DX Op you run into is
going to have ideal skills. We are all human, so cut the guy
a break if you don't like his style, or perhaps a short and
friendly email suggestion about operating practices. Not
all of us can be like the Super Pro DX ops that are on those
"Mega DX Ops". I wish I had their skills, I really do. That
those guys can very quickly
pull calls out of gigantic
pileups is amazing.
And sometimes a DX op will just want a friendly rag chew,
like back home, and not work a pileup. Some people can be
staggeringly rude about this. I'd tell them "I'm in a QSO
with XXX station, please wait for us to finish". Or "Tell you what,
I will be checking into the Afrikaner Net Net at 1730z. We can work then".
But nooooooo...Another time
I was running by numbers for a change and on 7's and a very loud IT3
station shouts at me. I said "Sorry, only 7's, QRZ?" then
he came back again and said that I MUST
work him NOW
because HE was going to late for his job if I didn't
Sorry Charlie. If you give an inch one time in a pileup,
people will run you down like a deer in the headlights at night.
I gave up on calling "Any QRP Stations" or "Any Mobile Stations?"
because I got called by guys obviously running legal limit
into serious antennas. A presumption on my part? Maybe.
Maybe when we get frustrated at the way the DX Op is
handling things we can put ourselves in his shoes.
73, Ken AD6KA, ex 5R8GQ