[CQ-Contest] Split operation in CQ WW CW

Tom W8JI w8ji at w8ji.com
Mon Aug 27 10:03:23 EDT 2012

Bob probably meant to get across the concept that one  should not listen up
5 as expeditions do so. If the pileup is really  getting out of hand, then
up 1 should be enough as long as those calling do not zero beat with each
other. >>>>

Up 5 takes no more room than up 1, or any split much wider than the 
bandwidth of filters.

What really wastes space are splits that do not center people in one CW 
channel width, especially  where people do not listen to see if a frequency 
is already occupied.

For example, calling up 4 or 4.5 while the station says up 5 will waste 
space and hog the band.  Calling within a hundred cycles or so of up 5 uses 
no more band space than calling within 100 cycles or so of up 1.

I'd almost bet that the majority who try to call up some specific number 
will be off + - at least 100 Hz just by accident. One way to encourage that 
might be to operate a weird frequency, instead of exactly on a 500Hz or a 
multiple of 500 Hz.

It would be interesting to see what the real statistics are. 

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