eXtreme CW (XCW)
To survive in an otherwise QRO world, QRP operators learn to become
patient; dedicated; and tenacious. Without these qualities, they would give-up low
power radio communication and move into the QRO comfort zone.
It is for this reason that QRP CW operators invariably make excellent
eXtreme CW (XCW)operators.
eXtreme CW may be defined as the use of conventional morse
code communication under difficult operating conditions. Such
difficult conditions may be due to very weak signals; continuous or
intermittent local interference; or due to co-channel interference (for
example, from intruders in the IARU CW-Only
XCW techniques include:
- the judicious use of slow CW (down to, say, 12 wpm);
- full break-in operation to send characters/words during breaks in QRM;
- very accurate netting (+/- 20 Hz);
- very narrow receive bandwidths (<100 Hz);
- sending 'XCW' so that the other operator knows that you're keen to get the message through;
- message repeats; and,
- repeated 'R' to confirm message receipt.
The second eXtreme CW World-Wide Challenge takes place on
28-29 October 2006. For details,