OK1CT/QRP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Czech Republic

Receiver-side FT8 activity involving OK1CT/QRP, decoded by SO8OO in southeastern Poland. 53 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-09-03.

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 53 FT8 messages attributed to OK1CT/QRP as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (77%), followed by 20 m (23%). Several six-hour UTC windows tied for the largest share (79%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (60%); the estimated median was -7 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

40m · 41 20m · 12

First attributed message: 2026-06-10
Last attributed message: 2026-09-03 05:59 UTC

Observed FT8 message patterns

Attributed sample: 53 messages
Active dates: 4 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -13 to +6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 19, strong (≥ -8 dB) 32.

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.

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	OK1CT/QRP S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-03 05:56	40m	-5 / -	<...>	- / -	4	Partial capture
09-03 05:43	40m	-12 / -	UX2QX	- / -14	2	Partial capture
09-03 05:42	40m	-11 / -	RI1FJL	- / -	3	Partial capture
09-01 05:45	40m	-10 / -	<...>	- / -	5	Partial capture
08-31 12:13	20m	- / -	DL4JTH	-4 / -	3	Partial capture
08-31 12:10	20m	- / -	DL4JTH	-2 / -	2	Partial capture
08-31 12:02	20m	- / -	GW0PZZ	-12 / -	3	Partial capture
08-31 11:33	20m	- / -	R7OV	-4 / -	3	Partial capture
08-31 11:32	20m	+5 / -	<...>	- / -	2	Partial capture
08-31 11:29	20m	- / -	EA3CFV	-6 / -	2	Partial capture
08-31 11:21	20m	+6 / -	<...>	- / -	2	Partial capture
08-31 10:35	20m	- / -	IU5HIU	-8 / -	2	Partial capture
08-31 06:46	40m	+6 / +2	9A4ZM	+5 / +1	5	Partial capture
08-31 06:46	40m	+2 / -	<...>	+2 / -	5	✓ Closing fragment
08-31 06:28	40m	-8 / -	<...>	- / -	2	Partial capture
08-31 06:01	40m	- / -	UR8MH	-14 / -	2	Partial capture
08-31 06:00	40m	- / 0	G8KHF	-8 / -	4	Partial capture
08-31 05:58	40m	- / -	DL2NYC	-1 / -	2	Partial capture
08-31 05:44	40m	-1 / -	<...>	- / -	6	Partial capture
08-31 05:40	40m	- / -	SM7JKW	-8 / -	5	Partial capture
08-31 05:39	40m	+8 / -	<...>	- / -	4	Partial capture
08-31 05:36	40m	-10 / -	<...>	- / -	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
054900  -8 1243  <...> OK1CT/QRP (x5)
054245 -14  890  <RI1FJL> OK1CT/QRP
054300 -12  894  UX2QX OK1CT/QRP -14
054315 -11  890  RI1FJL OK1CT/QRP
054330 -13  894  UX2QX OK1CT/QRP -14
054345  -9  890  RI1FJL OK1CT/QRP
054745 -12 2414  <...> OK1CT/QRP (x5)

20m

UTC    dB Audio  Message
112945  -6 2529  OK1CT/QRP EA3CFV JN11 (x2)
113215  +8  729  <...> OK1CT/QRP (x2)
113315  -9  730  OK1CT/QRP R7OV KN87 (x3)
120245 -13  729  OK1CT/QRP GW0PZZ IO81 (x3)
121015  -3  729  OK1CT/QRP DL4JTH JO60 (x5)

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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