OK1GSB — 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: Czech Republic Most frequent locator attributed to this token: JN79

Receiver-side FT8 activity involving OK1GSB, decoded by SO8OO in southeastern Poland. 39 FT8 messages attributed to this token as transmitter, on 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-21.

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 39 FT8 messages attributed to OK1GSB as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (100%). Most decodes (79%) fell within the six-hour window 11:00-17:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (62%); the estimated median was -17 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

10m · 39

First attributed message: 2026-06-08
Last attributed message: 2026-08-21 16:40 UTC

Observed FT8 message patterns

Attributed sample: 39 messages
Active dates: 7 UTC dates
Estimated median S/N: -17 dB
Estimated 10th-90th percentile: -21 to -13 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 0.

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 OK1GSB in decoded directed-looking exchanges:

CN8WK · Morocco CR7BUJ · Portugal EA4ZM · Spain EA7KUH · Spain EA7R · Spain F1PBZ · France F4JOO · France HB9EFK · Switzerland IZ2EID · Italy OH2CI · Finland PD4FL · Netherlands SV2ROC · Greece

Most frequent locator attributed to OK1GSB

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: JN79 · 35 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 491 km (approx.)
Last such locator decoded: 2026-08-21 16:40 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	OK1GSB S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-06 10:57	10m	- / +10	EA7Z	0 / -	3	Partial capture
10-31 12:13	10m	- / -4	EA7KUH	-14 / -	2	✓ Closing fragment
10-31 10:48	10m	- / 0	EA4ZM	-10 / -	2	✓ Closing fragment
10-31 10:23	10m	- / -15	UN7LZ	-6 / -	2	Partial capture
10-19 13:03	10m	- / -10	CN8WK	+12 / -	2	✓ Closing fragment
10-18 09:36	10m	- / -	EA7R	+1 / -	2	✓ Closing fragment
10-17 12:25	10m	- / -13	CR7BUJ	-10 / -	2	✓ Closing fragment
08-27 12:06	10m	- / -4	PD0PWH	-22 / -	2	Partial capture
08-27 11:55	10m	- / -16	PD4FL	-14 / -	4	✓ Closing fragment
08-27 10:25	10m	- / +5	IZ2EID	-12 / -	2	✓ Closing fragment
08-27 09:40	10m	- / -1	IZ6BYS	-6 / -	3	Partial capture
08-21 16:38	10m	-21 / -	RA2FL	- / -	5	Partial capture
08-21 14:10	10m	- / -3	HB9EFK	+2 / -	2	✓ Closing fragment
08-18 08:05	10m	- / -9	F4JOO	-15 / -	3	✓ Closing fragment
08-09 13:44	10m	- / -14	IU2EBR	-1 / -	9	Partial capture
08-09 12:36	10m	- / -13	F1PBZ	-2 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
122545 -13 1167  OK1GSB CR7BUJ RR73
093630  -1  751  OK1GSB EA7R +11 (x2)
130345  +9 2471  OK1GSB CN8WK -10 (x2)
080915 -21 1447  OK1GSB UA0SU RR73
102300  -4  790  OK1GSB UN7LZ -15 (x2)
104830 -10 2278  OK1GSB EA4ZM +00 (x2)
121345 -11 1837  OK1GSB EA7KUH -04 (x2)
105730  +0 2680  OK1GSB EA7Z IM67 (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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