Hello Stefan, VLF,
I think you are very lucky with a PC
that generates such a stable signal.
>Here i used a more than 10 year old notebook. Also if
people like to use the digimode
>termninal or also the frequency generator, not beeing
limited to frequencies given by the
>steps of a divider, SpecLab is much more comfortable.
Also on the receive side i
>remember to have received DF6NM's first tests in a 47 uHz
window, with a stable trace. :-)
>
>73, Stefan
I tried two notebooks now. That one
where I was talking about yesterday is also a 10 year old
Acer. Nice to see here (grab
below) how good that "Sampling rate detector" works. In the
first few hours I forgot to un-set the "measure only"
option.... The signal drifts all over the graph. Then it
stabillizes when I did the adjustment in the cfg.
Unfortunately that 2th PC that I test
here, a "modern" 2 year old Acer Extensa 5235 notebook
generates also a terrible trace at 47uHz.
One more PC to go :-)
73's , Peter - PA1SDB
