QDX Status LED
The front panel of QDX contains a 3mm red Status LED. The operation of this LED is as follows:
•
Quick flashing (flickering) for first 5 seconds after power up: if you disconnect power now,
then next time you power up, QDX will be in firmware update mode. During this five
seconds QDX is also operating normally in Receive mode. After five seconds, the LED will
go to a steady on (lit) state.
•
Slow flashing: QDX is in firmware update mode (refer to the Firmware Update procedure
section of this manual). If you did not wish to be in firmware update mode and have entered
firmware update mode inadvertently, simply power down QDX and re-apply power; QDX
will now be in normal operating mode again (quick flashing for the first five seconds, see
above).
•
Steady LED on state: QDX is in normal Receive mode operation
•
LED flashes 3 times in quick succession, repeating every 1 second: QDX is in normal
Transmit mode operation
•
LED flashes 2 times in quick succession, repeating every 1 second: the PC host software
application is sending audio to QDX, and QDX is detecting and measuring the incoming
audio, however the volume is too low (refer to Troubleshooting section, below).
•
LED flashes 1 time in quick succession, repeating every 1 second: the PC host software
application has activated PTT but the QDX is not detecting any audio signal from the PC
(refer to Troubleshooting section, below).
Operate!
Once CAT is configured and working, and the QDX sound card is chosen, just operate WSJT-X as
you would normally! You can choose the desired band 80m, 40m, 30m or 20m from the WSJT-X
screen and WSJT-X will communicate with QDX via CAT, to cause QDX to switch in the correct
filters.
This QDX manual is not the place to include tutorials on various digi mode operation or particular
application software such as WSJT-X, such guides are readily available and written very much
more thoroughly than I could hope to achieve!
QDX operating manual; firmware 1_04
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