> This is exactly the situation that having a network of SDR receivers placed
> strategically around the world will be able to catch - It would be a simple
> matter to play back the SDR recording to insure that the station was not
> transmitting simultaneously on the same band.
If the 10-minute rule creates so much concerns for so many people, why do we
need expensive and time-consuming hi-tech solutions when low-tech ones are
available? All that is needed is to include the time (the 2-digit minute is
enough) of the previous QSO in the exchange and the problem is solved. In
addition, making the exchange different that your zone or state or whatever
known piece of data adds a challenge and makes the contest more interesting.
The log will look like this:
QSO: 14001 CW 2009-07-11 1411 N2WQ/VE3 599 0004 VY2ZM 599 1109
QSO: 14001 CW 2009-07-11 1412 N2WQ/VE3 599 1104 K4ZW 599 1208
QSO: 14002 CW 2009-07-11 1413 N2WQ/VE3 599 1204 K3WW 599 1308
QSO: 14002 CW 2009-07-11 1413 N2WQ/VE3 599 1304 K4RO 599 1308
QSO: 14003 CW 2009-07-11 1414 N2WQ/VE3 599 1304 K6RB 599 1306
QSO: 14009 CW 2009-07-11 1417 N2WQ/VE3 599 1404 W0SD 599 1607
QSO: 14010 CW 2009-07-11 1418 N2WQ/VE3 599 1704 N7BV 599 1706
QSO: 14011 CW 2009-07-11 1419 N2WQ/VE3 599 1804 K4BP 599 1908
QSO: 14015 CW 2009-07-11 1421 N2WQ/VE3 599 1904 VE9HF 599 2009
So if somebody wants to cheat, they can't hide the difference is the time
because they have sent the time to somebody as part of the exchange.
I am sure this is not bullet-proof, but significantly easier to implement than
a network of SDRs around the world, requiring logs to be sent NN minutes after
the contest end, webcams, etc.
Rudy N2WQ
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