S51PV — 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 S51PV, decoded by SO8OO in southeastern Poland. 8,644 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 85 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-23.

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 8,644 FT8 messages attributed to S51PV as the transmitting token by decoded message structure across 85 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (99%), followed by 20 m (1%). Most decodes (65%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

8,644

Messages attributed

UTC dates decoded

1,052

Active 15-min windows

-11 dB

Estimated median S/N

Bands

40m · 8,584 20m · 60

First attributed message: 2026-06-08
Last attributed message: 2026-10-23 17:19 UTC

Observed FT8 message patterns

Attributed sample: 8,644 messages
Active dates: 85 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -17 to -4.4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,571, moderate (-15 to -9 dB) 4,213, strong (≥ -8 dB) 2,860.

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 S51PV in decoded directed-looking exchanges:

OK1VCB · Czech Republic ×2 F1TFT · France ×2 F4CTJ · France ×2 F4JUQ · France ×2 CT3IQ · Madeira Islands IW8BSR · Italy 9K2GR · Kuwait DK4BP · Fed. Rep. of Germany EC5M · Spain F5CUN · France HB9PAE · Switzerland M0PAX · England

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 S51PV

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 · 7,398 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 631 km (approx.)
Last such locator decoded: 2026-10-23 17:19 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	S51PV S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 17:16	40m	-12 / -	DL9TL	- / -	6	Partial capture
10-23 17:13	40m	-12 / -	UN7EG	- / -	4	Partial capture
10-23 17:08	40m	-13 / -	EA4BMF	- / -	4	Partial capture
10-23 17:05	40m	-7 / -13	Z68QQ	+10 / -4	5	✓ Full exchange observed
10-23 17:01	40m	-4 / -	Z33B	-15 / -10	7	✓ Closing observed
10-23 16:58	40m	-9 / -	LY2CX	- / -	6	Partial capture
10-23 16:55	40m	-10 / -	OH3DJP	- / -	4	Partial capture
10-23 16:50	40m	-9 / -	S57MPU	- / -	7	Partial capture
10-23 16:47	40m	-11 / -	VU3OSA	- / -	7	Partial capture
10-23 16:40	40m	-10 / -	IU8WQD	- / -	7	Partial capture
10-23 16:38	40m	-6 / -	OH7UE	- / -	2	Partial capture
10-23 16:34	40m	-10 / -	DG7BBU	-5 / -11	7	✓ Closing observed
10-23 16:30	40m	-6 / -	ON3HTB	- / -	6	Partial capture
10-23 16:28	40m	-8 / -	SP2MGR/P	- / -8	4	✓ Closing fragment
10-23 16:24	40m	-9 / -	A61DD	- / -	3	Partial capture
10-23 16:17	40m	-9 / -	YD1EQN	- / -	5	Partial capture
10-23 16:14	40m	- / -14	OK1DTC	+14 / -	2	✓ Closing fragment
10-22 19:07	40m	- / -24	PD2ET	-4 / -	2	Partial capture
10-22 19:05	40m	- / -15	ON8DM	+4 / -	3	✓ Closing fragment
10-20 16:39	40m	-6 / -	DB1BC	- / -	2	Partial capture
10-20 16:36	40m	-7 / -	A41KB	- / -	4	Partial capture
10-20 16:22	40m	-4 / -	IU1CNG	- / -	2	Partial capture
10-20 16:18	40m	-5 / -	IV3VFP	- / -	5	Partial capture
10-20 16:15	40m	-12 / -	F8BMB	- / -	2	Partial capture
10-20 16:12	40m	-9 / -	OK8KMR/P	- / -	5	Partial capture
10-20 16:03	40m	-3 / -	DB1BC	- / -	7	Partial capture
10-20 15:59	40m	-6 / -	M6WRB	- / -	6	Partial capture
10-20 15:43	40m	-2 / -	DL1VED	- / -	4	Partial capture
10-20 15:37	40m	-8 / -	ON6AB	- / -	6	Partial capture
10-20 15:35	40m	-8 / -	G8XDD/P	- / -11	2	Partial capture
10-20 15:32	40m	-12 / -	G8XDD/P	- / -	2	Partial capture
10-20 15:29	40m	-7 / -	BG0FQU	- / -	6	Partial capture
10-20 15:26	40m	-11 / -	M0CET	- / -	4	Partial capture
10-20 15:21	40m	-8 / -	MM0CEZ	- / -	6	Partial capture
10-20 15:18	40m	-12 / -	EA7OY	- / -	4	Partial capture
10-20 15:14	40m	-9 / -3	OK8KMR/P	-24 / -	6	Partial capture
10-20 15:06	40m	-14 / -	G4YAN	- / -	5	Partial capture
10-20 15:02	40m	-8 / -	EA3HKA	- / -	5	Partial capture
10-20 14:58	40m	-2 / -	M9DNC	- / -	6	Partial capture
10-20 14:17	40m	-6 / -	ON4BIT	- / -	5	Partial capture
10-20 14:11	40m	-13 / -	GM8IEM	- / -	7	Partial capture
10-20 14:03	40m	-18 / -	PA2DX	- / -18	2	Partial capture
10-20 13:59	40m	-12 / -	OH1TEV	- / -	6	Partial capture
10-20 13:38	40m	-14 / -	PD1UM	- / -	2	Partial capture
10-20 13:35	40m	-12 / -	DL1CBH	-19 / -10	5	✓ Closing observed
10-20 13:21	40m	-12 / -	DH6HF	- / -	7	Partial capture
10-20 13:12	40m	-12 / -	IU5TSY	-8 / -5	6	✓ Closing observed
10-20 13:03	40m	-8 / -	IW2KIC	- / -11	3	✓ Closing fragment
10-20 12:43	40m	-14 / -	9A/YO3ARG	- / -	3	Partial capture
10-20 12:42	40m	-17 / -	DA125RH	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
170645 -15 2202  Z68QQ S51PV 73
170815  -6 2203  EA4BMF S51PV JN76 (x4)
171315 -10 2206  UN7EG S51PV JN76 (x4)
171645 -12 2209  DL9TL S51PV JN76 (x6)

20m

UTC    dB Audio  Message
122630 -19 2407  OK1ABB S51PV JN76 (x2)
123330 -16 2410  IZ5IIN S51PV JN76
123845 -10 1765  S51PV M0PAX -04 (x3)
124400 -19 2410  2E1HAT S51PV JN76
125830  -1  448  S51PV F5CUN -22 (x3)
130145 -20 2406  IU2QBL S51PV R-08
141100 -12  574  S51PV EC5M -20 (x2)
144445  +2 1839  S51PV M9UTD RR73
163630  +5  532  S51PV M8GGQ RR73

10m

UTC    dB Audio  Message
085900  -6 1627  S51PV LZ4VR KN13 (x2)
090300 -13  633  S51PV SV2CLJ -19 (x4)
101245 -22 1542  S51PV CT3IQ RR73
134715 -13 2171  S51PV IW8BSR RR73
165300 -17 1482  S51PV RX6AAT +02

80m

UTC    dB Audio  Message
174145  -3 2326  S51PV SQ8CTR KO10 (x3)

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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