Hello VLF,
I like to do some local test here with
Spectrum lab setings (and who knows, High ERP transmissions later :-)
I have here a notebook that generates a
signal with the Signal generator in Spectrum Lab at 8970.1 Hz.
It has a Loop connected at the input
and thats how it is locked to a GDO (HWU, FTA, what is available)
I tried several, and that Lock wondow
gets green, but output looks terrible.
To radiate the signal I use a pice of
wire at the notebook LS output.
Below two grab's over the same periode
of time.
My localy generated signal at 8970.100
Hz and for comparison the signal of DJ8WX at 8970.022 Hertz.
Both grab's are made with the same
Spectrum Lab task.
Why does my signal look like a widband
FM transmission ?
