[time-nuts] Re: Eloran long test from now to August or September.

[jeanmichel.friedt at femto-st.fr]

> I did it with 4 RTL-SDRs, and I’ll scrounge up the measurements.    My first attempt was just to
> couple the 1pps from a GPS module into the inputs - that’s not easily detectable (I was hoping that
> the fast edges would be sufficiently broadband to be detectable in the sampled data stream -
> nope..)

See attached: I capacitively inject the 1-PPS on the RTL2832 input (either I or Q), not
the R820(T2) radiofrequency frontend. This allows for timestamping on the rising edge
of GPS 1-PPS the datastream fetched by the ADCs of the RTL-SDR.

Best, JM
-------------- next part --------------
A non-text attachment was scrubbed...
Name: transmissions_1pps.png
Type: image/png
Size: 75788 bytes
Desc: not available
URL: <http://febo.com/pipermail/time-nuts_lists.febo.com/attachments/20230926/47bba3e9/attachment.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: modif_rtl.png
Type: image/png
Size: 13553 bytes
Desc: not available
URL: <http://febo.com/pipermail/time-nuts_lists.febo.com/attachments/20230926/47bba3e9/attachment-0001.png>