SN0GSMP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland

Receiver-side FT8 activity involving SN0GSMP, decoded by SO8OO in southeastern Poland. 130 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-17 and 2026-07-18.

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 130 FT8 messages attributed to SN0GSMP as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (92%), followed by 80 m (8%). In this small sample, the estimated median decoder S/N was -8 dB; no usual signal pattern is inferred.

Overview

130

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

80m · 10 40m · 120

First attributed message: 2026-07-17
Last attributed message: 2026-07-18 15:35 UTC

Observed FT8 message patterns

Attributed sample: 130 messages
Active dates: 2 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -16 to +3 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 45, strong (≥ -8 dB) 72.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

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.

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	SN0GSMP S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-19 21:19	20m	- / -	<...>	-6 / -	3	✓ Closing fragment
07-18 15:32	40m	-1 / -	LA1CO	- / -14	2	Partial capture
07-18 15:28	40m	+2 / -	<...>	- / -	3	✓ Closing fragment
07-18 15:21	40m	+1 / -5	SP3BOG	-11 / +8	2	Partial capture
07-18 15:21	40m	-2 / -	<...>	-20 / -	6	✓ Closing fragment
07-18 15:16	40m	-4 / -	<...>	- / -	2	✓ Closing fragment
07-18 11:34	20m	- / -	SP1TJ	-8 / -	2	Partial capture
07-18 11:33	20m	- / -	<...>	-16 / -	2	✓ Closing fragment
07-18 07:41	20m	- / -	LZ3CB	+1 / -	4	Partial capture
07-18 07:36	20m	- / -	EM90Z	-9 / -	3	Partial capture
07-17 22:11	80m	+16 / -	<...>	+6 / -	4	✓ Closing fragment
07-17 22:08	80m	- / -	G4ZFJ	+11 / -	2	Partial capture
07-17 22:08	80m	+17 / -	<...>	+10 / -	2	✓ Closing fragment
07-17 22:07	80m	+17 / +8	UA4FKT	+12 / +10	3	Partial capture
07-17 21:45	40m	- / -	<...>	-14 / -	2	✓ Closing fragment
07-17 19:08	40m	-10 / -1	SN1A	-14 / +5	3	Partial capture
07-17 19:06	40m	-8 / -	<...>	-18 / -	5	✓ Closing fragment
07-17 18:58	40m	-4 / -	SN1A	- / +5	3	Partial capture
07-17 18:56	40m	-8 / -	PA2KV	- / -4	2	Partial capture
07-17 18:51	40m	-6 / -	<...>	-8 / -	7	✓ Closing fragment
07-17 18:13	40m	-6 / +8	YO9XC	-16 / +6	2	Partial capture
07-17 18:13	40m	-6 / -	<...>	-6 / -	5	✓ Closing fragment
07-17 18:12	40m	-14 / +10	YO6PNM	-10 / +3	2	Partial capture
07-17 18:11	40m	-10 / -	SP4TKA	- / -	2	Partial capture
07-17 18:08	40m	-8 / -	OK4RQ	-10 / +2	3	Partial capture
07-17 18:01	40m	-11 / -	<...>	-12 / -	11	✓ Closing fragment
07-17 17:58	40m	-16 / -	<...>	-20 / -	3	✓ Closing fragment
07-17 16:38	40m	-10 / -	<...>	-10 / -	4	✓ Closing fragment
07-17 16:31	40m	-10 / -	<...>	- / -	3	✓ Closing fragment
07-17 16:27	40m	-8 / -	<...>	-9 / -	3	✓ Closing fragment
07-17 16:21	40m	-12 / -	<...>	- / -	2	✓ Closing fragment
07-17 15:58	20m	- / -	<...>	-8 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
074200  -3 1050  SN0GSMP LZ3CB KN32 (x2)
091415  -6 1991  SN0GSMP <...> 73 (x3)
113415  -9 1489  SN0GSMP SP1TJ JO74 (x2)
113545 -13 1488  SN0GSMP <...> 73 (x7)
212345  -4 2139  SN0GSMP G4DBW JO01

40m

UTC    dB Audio  Message
152430  +3 1286  <...> SN0GSMP RR73
152730  -3 1471  CQ SN0GSMP
152800  +2 1448  <...> SN0GSMP RR73
152830  +0 1448  CQ SN0GSMP
152900  +0 1448  SQ4FAE SN0GSMP -03
152930  +6 1448  <...> SN0GSMP RR73 (x2)
153100  -5 1448  CQ SN0GSMP (x2)
153200  -8 1448  LA1CO SN0GSMP -14 (x2)
153300  +3 1448  <...> SN0GSMP RR73
153330  -1 1449  CQ SN0GSMP (x2)
153530  -3 1448  <...> SN0GSMP RR73

80m

UTC    dB Audio  Message
220800 +17 2464  UA4FKT SN0GSMP +10
220815 +11 2465  SN0GSMP UA4FKT R+08
220830 +17 2465  <...> SN0GSMP RR73
220845 +11  563  <SN0GSMP> G4ZFJ JO01
220845 +10 2465  SN0GSMP <...> 73
220900 +19 2465  CQ SN0GSMP
220915 +11  562  SN0GSMP G4ZFJ JO01
220930 +21 2465  IQ4JO SN0GSMP -01
221100 +14 2465  <...> SN0GSMP RR73
221115 +14 2461  SN0GSMP <...> 73
221130 +14 2465  HF9T SN0GSMP +02
221200 +19 2465  <...> SN0GSMP RR73
221215  -2 2066  SN0GSMP <...> 73
221230 +17 2465  CQ SN0GSMP
221315 -18 2463  SN0GSMP G8FRS IO91

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.

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