Джо добил вчера на этой частоте до Германии.
передавал многочасвую несущую.
That continuous trace on Paul's spectrogram is impressive - great work!
Attempting to extract a long spectrum from Paul's data creates a split peak at +-12 uHz from the center, suggesting a repeating near 180° phase difference between day and night.
A close look on our Bavarian 31 uHz spectrograms seems to bring up some faint traces on the right frequency, but to be more sure we still need a few dB less noise, or more ERP.
Best 73,
Markus (DF6NM)
-----Ursprüngliche Mitteilung-----
Von:
An: rsgb_lf_group <
rsgb_lf_group@blacksheep.org>
Verschickt: Mo, 10. Sept 2018 21:33
Betreff: Re: LF: VO1NA 8270.0075 Hz
I've not been mucking with the tx or tuning so perhaps Mother Nature has
provided an ERP improvement -- the wx has been quite dry recently.
Thank-you for the report and the spectrogram service. It keeps me
entertained, especially since it seems impossible to see my own
sigs with a remote setup at distances greater than about 10 km.
Been playing with vt tools and a cheap sound card.
73
Joe VO1NA
On Sun, 9 Sep 2018, Paul Nicholson wrote:
VO1NA from Newfoundland with 10uW must hold the record for
the longest running VLF transmission!
Coming in well the last couple of days -
http://78.46.38.217/fbins3.html#p=1536487200&b=280&s=sp&m=cardioid&w=r&h=62&z1=0.34&z2=0.64&c=1An ERP improvement, or good propagation?
--
Paul Nicholson