Thank-you for the reports Paul and to all for interesting discussion
about ethics of electromagnetic propagation interpretation.
The phase stability seems to be very good. It seems that Spec Lab
is doing its thing well and I am grateful to Markus and Stefan for their
help in getting it going.
Lobbing the VLF photons across the pond and to the west will continue
pending the wrath of Mother Nature -- a big storm is just about to start.
There has been no EbNaut reception report from Canada yet.
To change this, on hand are a raspi3 and vt tools working per Paul's
instructions, neo7m, dk7fc vlf probe and battery pack.
Is it possible plug the probe into the rasberry via a usb sound
card to get a .vt file to decode?
73's
Joe VO1NA
On Sat, 30 Dec 2017, Paul Nicholson wrote:
VO1NA wrote:
28 Dec. 2100 utc, 16K21A, CRC-8, one character,
544 symbols, 1 minute each,
8270.0075 Hz.
Measurements after two repeats of the new letter:
Todmorden (3575 km)
-------------------
28/29 Eb/N0 +11.4 dB, S/N -26.2 dB/1Hz, phase -175.0 *Decoded*
29/30 Eb/N0 +13.7 dB, S/N -23.9 dB/1Hz, phase -168.4 *Decoded*
Bielefeld (4301.5 km DL4YHF)
----------------------------
28/29 Eb/N0 -3.8 dB, S/N -41.4 dB/1Hz, phase 24.0;
29/30 Eb/N0 +2.1 dB, S/N -35.4 dB/1Hz, phase 16.8 *Decoded*
Warsaw (5096.6 km SQ5BPF)
-------------------------
28/29 Eb/N0 -2.2 dB, S/N -39.7 dB/1Hz, phase -163.5;
29/30 Eb/N0 -1.2 dB, S/N -38.8 dB/1Hz, phase 175.9;
Stacked Eb/N0 +1.2dB *Decoded*
Cumiana (4533.4 km IK1QFK)
--------------------------
28/29 Eb/N0 -5.6 dB, S/N -43.2 dB/1Hz, phase 5.7;
28/29 Eb/N0 -10.4 dB, S/N -48.0 dB/1Hz;
Forest, VA (2415.3 km KE4RJQ)
-----------------------------
28/29 Eb/N0 +3.7 dB, S/N -33.9 dB/1Hz, phase -33.0 *Decoded*
29/30 Eb/N0 -5.0 dB, S/N -42.6 dB/1Hz, phase -35.3;
On this occasion, the phase repeats very well.
Hawley, TX (4240.3 km)
----------------------
28/29 Eb/N0 -7.5 dB, S/N -45.1 dB/1Hz, phase -160.5;
29/30 Eb/N0 -6.2 dB, S/N -43.8 dB/1Hz, phase -105.8;
--
Paul Nicholson
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