S51SG — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Slovenia Most frequent locator attributed to this token: JN76

Receiver-side FT8 activity involving S51SG, decoded by SO8OO in southeastern Poland. 77 FT8 messages attributed to this token as transmitter, on 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-09-21 and 2026-10-13.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 77 FT8 messages attributed to S51SG as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Most decodes (92%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (82%); the estimated median was +4 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

+4 dB

Estimated median S/N

Bands

40m · 77

First attributed message: 2026-09-21
Last attributed message: 2026-10-13 05:42 UTC

Observed FT8 message patterns

Attributed sample: 77 messages
Active dates: 3 UTC dates
Estimated median S/N: +4 dB
Estimated 10th-90th percentile: -12 to +10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 63.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with S51SG in decoded directed-looking exchanges:

5Q1X · Denmark DK6WS · Fed. Rep. of Germany DL6KA · Fed. Rep. of Germany DL6RS · Fed. Rep. of Germany EA5HM · Spain F6BHK · France GU4WRP · Guernsey OH5KNL · Finland ON1DGN · Belgium RA6ZD · European Russia S53AK · Slovenia SP6MLX · Poland

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to S51SG

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator: JN76 · 34 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 631 km (approx.)
Last such locator decoded: 2026-10-13 05:41 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTC	Band	S51SG S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-13 05:41	40m	+4 / -	OH5KNL	+18 / +7	4	✓ Full exchange observed
10-13 05:11	40m	-3 / -	IZ8PPI	- / +1	2	Partial capture
10-13 05:10	40m	- / 0	SV5BYP	-13 / -	3	✓ Closing fragment
10-12 21:25	40m	-13 / -	BG0FQU	- / -	3	Partial capture
10-12 20:22	40m	-2 / -	SP6MLX	- / -2	4	✓ Closing fragment
10-12 20:21	40m	-1 / -13	EA5HM	-7 / -4	14	✓ Full exchange observed
10-12 20:17	40m	-1 / -	JA7BXS	- / -8	3	Partial capture
10-12 20:13	40m	-11 / -	VK6DW	- / -6	4	✓ Closing fragment
10-12 19:54	40m	-13 / -	GU4WRP	-12 / +2	3	✓ Closing observed
10-10 20:02	40m	- / -	EA5HM	-8 / -	7	Partial capture
09-21 18:33	40m	+7 / -	EA4IXY	- / -19	2	Partial capture
09-21 18:25	40m	+2 / -	ON1DGN	- / -4	2	✓ Closing fragment
09-21 18:24	40m	+6 / +9	DL6RS	+7 / +10	5	✓ Full exchange observed
09-21 17:50	40m	+10 / -	RI1FJZ	- / -	4	Partial capture
09-21 17:29	40m	+5 / +6	5Q1X	-15 / -10	7	✓ Full exchange observed
09-21 17:28	40m	+6 / -6	F6BHK	+8 / +2	4	✓ Full exchange observed
09-21 16:50	40m	+9 / +9	DK6WS	-2 / +4	10	✓ Full exchange observed
09-21 16:50	40m	+12 / -	S53AK	0 / 0	6	✓ Closing observed
09-21 16:49	40m	+10 / -1	DL6KA	-4 / -4	4	✓ Full exchange observed
09-21 16:45	40m	+11 / -6	RA6ZD	-10 / -9	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

40m

UTC    dB Audio  Message
202800  -8 1530  IZ8PPI S51SG R-11
212515 -11 2215  BG0FQU S51SG JN76 (x3)
051000 -16 1275  S51SG SV5BYP KM46 (x3)
051145  -5 2403  IZ8PPI S51SG R+01 (x2)
051515  +6 2801  VE2LBI S51SG JN76
052530  +0 1349  PV8AJ S51SG JN76
054145  +1 2805  OH5KNL S51SG JN76
054200 +15 2805  S51SG OH5KNL +13
054215  +6 2805  OH5KNL S51SG R+07
054230 +21 2805  S51SG OH5KNL RR73

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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