WiNRADiO G33DDC User’s Manual
19
This function also makes it possible to observe the
CPU load
, which will
depend on this setting. It may not be advisable to select a value resulting in
more than say 30% CPU load as the computer may then become sluggish.
Should the computer become sluggish or even “freeze” as a result of this
adjustment, please reduce the demodulator filter length to a lower value.
Note also that the CPU load can be lowered (while keeping selectivity
high) by reducing the DDC bandwidth (DDC BW). All standard HF signals
can be demodulated with 20 kHz DDC bandwidth without a decrease in
the demodulation quality. Wider DDC bandwidths affect display and
recording, while increasing the CPU load considerably.
Avoiding Front-End Overload
If the S-meter shows the words
ADC CLP
, the analog-to-digital converter
(ADC) is overloaded (i.e. clipping the signal). In such case, use the
Attenuator
to reduce the level of the signal entering the ADC. You can use the
Auto
button which reduces the signal automatically to the optimum level.
If you experience any installation problems or are unable to tune to any radio
stations at this point, please refer to
Appendix B - Troubleshooting
.
