SP9THC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland

Receiver-side FT8 activity involving SP9THC, decoded by SO8OO in southeastern Poland. 162 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 20 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-09-18.

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 162 FT8 messages attributed to SP9THC as the transmitting token by decoded message structure across 20 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (60%), followed by 20 m (30%) and 60 m (7%). Several six-hour UTC windows tied for the largest share (67%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

162

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

80m · 3 60m · 12 40m · 98 20m · 49

First attributed message: 2026-06-12
Last attributed message: 2026-09-18 07:46 UTC

Observed FT8 message patterns

Attributed sample: 162 messages
Active dates: 20 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -17 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 23, moderate (-15 to -9 dB) 54, strong (≥ -8 dB) 85.

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 SP9THC in decoded directed-looking exchanges:

PD1CMP · Netherlands TA1BX · European Turkey UR9QQ · Ukraine A61QQ · United Arab Emirates CR7BRV · Portugal DL1BBO · Fed. Rep. of Germany EA4D · Spain IR1WWA · Italy KB2ELA · United States KF0YOB · United States KH6M · United States LZ1RAY · Bulgaria

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	SP9THC S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 07:45	40m	-4 / -	SQ100PKP	- / -8	2	Partial capture
09-17 06:32	40m	-19 / -	KB3Z	- / -14	8	✓ Closing fragment
09-17 06:31	40m	-19 / -	KJ5PTH	- / -18	2	Partial capture
08-25 08:02	20m	- / -19	M7FQH	+5 / -	2	✓ Closing fragment
08-22 07:31	20m	- / -	EA1IOK	-12 / -	2	Partial capture
08-22 07:30	20m	- / -14	EA4D	-8 / -	2	✓ Closing fragment
08-07 05:32	20m	- / -	EB3JT	-6 / -	6	Partial capture
08-05 06:42	40m	- / -	UT4PA	-8 / -	2	Partial capture
08-05 05:46	20m	- / -12	I1FLC	-18 / -	2	Partial capture
08-04 18:02	20m	- / +4	TC3CT	-7 / -	2	✓ Closing fragment
08-03 21:03	60m	-6 / -15	IK3/UY7LA	-11 / -	2	✓ Closing observed
08-03 21:01	60m	-5 / -14	G1SID	-7 / -9	4	✓ Full exchange observed
08-03 20:57	60m	- / -	G4ZFJ	+6 / -	18	Partial capture
08-03 20:56	60m	-10 / -	EA1MX	-18 / -4	3	✓ Closing observed
08-03 20:55	60m	- / -	9A4ZM	-3 / -	6	Partial capture
08-03 20:55	60m	-4 / -8	F5MYK	-8 / -8	6	✓ Full exchange observed
08-03 20:51	80m	+4 / -	SV3CKF	- / -15	2	Partial capture
08-01 05:22	20m	- / -	SV5BYP	-18 / -	4	Partial capture
07-31 04:38	20m	- / -	R6LKG	-3 / -	3	Partial capture
07-31 04:21	20m	- / -	R6LKG	-4 / -	2	Partial capture
07-25 09:37	10m	- / -11	YO4NF	-8 / -	2	Partial capture
07-25 07:42	20m	- / -13	CR7BRV	-10 / -	2	✓ Closing fragment
07-24 08:45	40m	-15 / -	M7PUC	- / -19	5	Partial capture
07-24 08:43	40m	- / -	UT4PA	-12 / -	2	Partial capture
07-24 08:41	40m	-13 / -	PE9JAN	- / +4	2	✓ Closing fragment
07-24 08:36	40m	-8 / -	PD0ACM	- / -16	8	Partial capture
07-24 08:34	40m	-10 / -	<...>	- / -9	2	Partial capture
07-21 16:32	20m	- / -2	PD1ADA	-20 / -	2	Partial capture
07-21 16:31	20m	- / -10	TA1BJ	-10 / -	2	✓ Closing fragment
07-20 18:51	20m	- / -	F5RRS	-6 / -	4	Partial capture
07-20 18:48	40m	-14 / -	9A7KWS	-1 / -4	3	✓ Closing observed
07-19 10:36	20m	- / -19	F4BJN	-12 / -	5	Partial capture
07-17 17:52	20m	- / -15	SV5BYP	-16 / -	2	Partial capture
07-16 12:04	20m	- / +5	LZ1RAY	+7 / -	2	✓ Closing fragment
07-09 06:19	40m	-10 / -	KZ7Y	- / -16	2	Partial capture
07-09 05:41	40m	-15 / -	KZ7Y	- / -18	3	Partial capture
07-09 05:38	40m	-6 / -	KZ7Y	- / -13	2	Partial capture
07-08 20:48	20m	- / -	EA1IOK	-13 / -	3	Partial capture
07-08 09:22	20m	- / -	LZ2VQ	-13 / -	2	Partial capture
07-08 06:40	40m	-8 / -	W4WFC	- / -20	5	Partial capture
07-08 06:12	20m	- / -5	UR4QWW	-12 / -	5	Partial capture
07-08 06:12	20m	- / -10	A61QQ	-16 / -	2	✓ Closing fragment
07-08 06:07	20m	- / -	LZ2VQ	-18 / -	3	Partial capture
07-07 07:59	40m	-2 / -	K2L	- / -19	11	Partial capture
07-07 06:40	40m	-7 / -	ND9M	- / -16	9	Partial capture
07-07 06:37	40m	-7 / -	K2K	- / -19	2	Partial capture
07-07 06:36	40m	-8 / -	OA4ENG	- / -10	2	Partial capture
07-05 21:58	20m	- / -10	YO4NF	-11 / -	3	Partial capture
07-05 21:21	20m	- / -12	YO4NF	-7 / -	2	Partial capture
07-05 13:35	20m	-1 / -	<...>	- / -16	9	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
064200  -8 1135  SP9THC UT4PA KO20 (x2)
074715 -12 1137  EH3PDA SP9THC -16
063130 -19 1138  KJ5PTH SP9THC -18 (x2)
063230 -19 1138  KB3Z SP9THC -14 (x8)
074545  -4 1138  SQ100PKP SP9THC -08 (x2)

20m

UTC    dB Audio  Message
053445  -2 1174  SP9THC EB3JT JN01 (x2)
165230  -2 2309  SP9THC <...> R-10
044015  +0 1176  SP9THC UA4FEN -14
044145 -14  931  SP9THC EA1IOK IN62
051445 -14 1176  SP9THC KB2ELA 73
072215  -1 1510  SP9THC IK2IKW JN55
072345 -14 1023  SP9THC 4Z5PT R-15
073000  -8 1568  SP9THC EA4D R-14 (x2)
073100 -12  930  SP9THC EA1IOK IN62 (x2)
080200  +4  724  SP9THC M7FQH R-19 (x2)
065900  +4 1330  SP9THC TA1MB R-09

80m

UTC    dB Audio  Message
205100 +11 1101  SV3CKF SP9THC -15 (x2)
201115  +5 1100  F4GGK SP9THC -08
201530  +7 1463  SP9THC SP1905MFK R-07

60m

UTC    dB Audio  Message
210145  -4 1130  G1SID SP9THC -09
210200  -7  380  SP9THC G1SID R-14
210215  +8  540  SP9THC G4ZFJ JO01
210215  -9 1130  G1SID SP9THC RR73
210245  +6  540  SP9THC G4ZFJ JO01
210300 -11 1768  SP9THC IK3/UY7LA R-15
210315  -6 1130  IK3/UY7LA <SP9THC> RR73
210315  +4  539  SP9THC G4ZFJ JO01 (x8)

10m

UTC    dB Audio  Message
084945  +7 2347  SP9THC DL9KM JN68
085200  -6 1247  SP9THC UR9QQ KN77 (x4)
100300 -17 1838  SP9THC PD1CMP 73
100615 -24 1631  SP9THC G3TKT IO92
110900  +2  646  SP9THC GJ0KYZ R+00 (x3)
093430 -16 1058  SP9THC DJ3HW JO30 (x2)
093730  -5 1188  SP9THC YO4NF -11 (x2)
080300 -21 1269  SP9THC TA1BX 73

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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