Re: LF: EbNaut test at 8270.00332 from JN64bw

[Paul Nicholson <vlf0403@abelian.org>]

Riccardo wrote:

> f = 8270.00332 Hz
> Start time: 21:30:00 UTC
> Symbol period: 30 s
> Characters: 3 (repeated)
> CRC bits: 24
> Coding 16K21A

 Todmorden: Decoded correctly, Eb/N0 = 0.0 dB, -32.4 dB in 1Hz.
            BER 38.8%, rank 262772.  Ref phase -30 -30 0 0
            Constant ref phase is 0.1 dB weaker.

 Bielefeld: No decode, Eb/N0 = -4.6 dB

 Cumiana:   No decode, Eb/N0 = -3.7 dB

 Warsaw:    No decode, Eb/N0 = -8.7 dB

Phase repeatability:

 Todmorden  13/14:    35.7 deg     14/15:   19.1 deg
 Bielefeld  13/14:   161.9 deg     14/15:  103.1 deg
 Cumiana    13/14:  -116.0 deg     14/15:  -95.4 deg

Stacking the two nights at Cumiana gives Eb/N0 = -1.5 dB,
still too weak to decode.

Reception worse here last night but better at the other sites.
Quite a lot of rain/snow static last night on the E-field antenna.

--
Paul Nicholson
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