FLEX-6000 Signature Series - SmartSDR for Windows Software User’s Guide
Page 75
Copyright 2018 FlexRadio Systems. All Rights Reserved.
The keyer speed can be set between 5 and 100 WPM using the Speed control in the CW transmit
panel. The IAMBIC selector must be enabled to use the built-in keyer. The Sidetone control will
increase or decrease the sidetone volume in the speakers and headphones.
19.4 HOW TO OPERATE QRQ (HIGH SPEED) CW WITH QSK
All FLEX-6000s are capable of full QSK operation. To achieve the full benefit of QSK, the delay control
on the CW Transmit Control Panel must be set to zero. This will allow the transmit/receive switching
to occur immediately upon release of the key. In QSK mode the FLEX-6000s use a very fast reed relay
for CW T/R switching, but at higher CW speeds (above 30 WPM) better inter-element receiving
results are obtained by using two antennas, one for transmitting and another for receiving. Refer to
the antenna selection instructions for information on how to configure separate transmit and receive
antennas. Full break QRQ is available only in the FLEX-6600/M and FLEX-6700 models.