[Elecraft] split pileup and listening was Pileups and KPA500/ST0R

Ron D'Eau Claire ron at cobi.biz
Sun Jul 31 13:15:02 EDT 2011


Gerald, it seems that most DX uses split when it generates a pileup. That
allows the calling stations to hear the DX stations even when some continue
calling after DX station comes back to someone. 

In a perfect world everyone would listen before transmitting, but we are far
from perfect. Besides, skip conditions on the most popular DX bands often
prevent the calling stations from hearing each other.

The amount of split is not fixed, but most stations listen up from their
transmitting frequency. The split is typically about 2 kHz on CW. (I can't
speak for other modes.) Some stations try to locate the station the DX is
currently working and "tail end" with their call when they sign. Others
shift up or down a few hundred Hz from the frequency the DX was last
listening on, looking for a possible quiet spot the DX station might tune to
and notice them. 

I very seldom call DX if there's a pileup and never call CQ DX. However,
it's not unusual to have DX reply to my CQ right on my frequency, sometimes
resulting in a rag-chew. As we are chatting we'll eventually start to hear
blips and beeps of people tapping their keys on the frequency or someone
just sends BK BK BK BK as if the DX station isn't allowed to do anything but
run exchanges for their log books. As soon as we recognize a breaking
station there is often a huge pileup calling the DX right on top of our
frequency. 

I haven't a clue as to how the DX station shifts that one-frequency pile-up
to a split frequency arrangement, if he/she ever does. As soon as we sign
I'm spinning the dial to get away from the mayhem, Hi! 

Ron AC7AC

-----Original Message-----
When I chased DX there was no split, we conserved bandwidth. Is there
somewhere to see the split freq? Is it what the op wants? Is it limited to
cw or ssb? Can someone explain it to me, I'm sure their are others wondering
too.
Thanks



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