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 ?
