Hi
all,
Markus, thank you for the report.
The small difference in QRG is due probably to the fact
that i'm not using resample now.
Transmission of 6 char./3s with 10 W will start in few
seconds.
GL
Domenico / iz7slz
On 10/23/2015 10:51 PM, Markus Vester wrote:
Hi
Domenico, Paul,
good decode again from the first transmission
which started accurately at 20:00 UT. I only noticed
that I had to reduce the frequency offset by half a
milliHz compared to earlier tests.
Best 73,
Markus (DF6NM)
-----Ursprüngliche Mitteilung-----
Von: IZ7SLZ <
[email protected]>
An: rsgb_lf_group <
[email protected]>
Verschickt: Fr, 23 Okt 2015 9:47 pm
Betreff: Re: LF: Coherent BPSK on LF using EbNaut
Good evening Paul, Markus and all,
thank you for your updates.
I will start some EbNaut transmission at 22.00 each hour and hope that Paul can make some measurement on my signal . Qrg is 137502.24 Hz
Initial trasmission at 22.00 will contains 22 characters at 1 s/symbol and will be sent with 100 W power output.
Following transmissions will contains 6 characters at 3 s/symbol and should be sent with 10 W. Coding scheme: 8K19A.
GL.
73, Domenico / iz7slz
On 10/23/2015 7:00 PM, Paul Nicholson wrote: > > I have an E-field rx running on the 137 kHz band, > GPS locked. > > Here is the 'first light' spectrogram > > http://abelian.org/tmp/lf151023a.png > > which covers 137 kHz to 138.5 kHz. > > It's a bit shaky, everything held together with > croc clips but hopefully will survive long enough > to pick up an amateur signal or two. > > I'm recording 135 to 138.5 kHz. I reckon the battery > is good for about 60 hours. > > Maybe there will be some distant unmodulated carriers > to measure, or even a coherent BPSK message. > > 137.5 kHz looks quiet here. > > -- > Paul Nicholson, > Todmorden, UK. > -- > >
