SP9THC — 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: Poland

Receiver-side FT8 activity involving SP9THC, decoded by SO8OO in southeastern Poland. 220 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 31 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-11-04.

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 220 FT8 messages attributed to SP9THC as the transmitting token by decoded message structure across 31 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (56%), followed by 20 m (22%) and 80 m (14%). Most decodes (61%) fell within the six-hour window 05:00-11:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

220

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

160m · 1 80m · 30 60m · 16 40m · 124 20m · 49

First attributed message: 2026-06-12
Last attributed message: 2026-11-04 10:41 UTC

Observed FT8 message patterns

Attributed sample: 220 messages
Active dates: 31 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -17 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 32, moderate (-15 to -9 dB) 71, strong (≥ -8 dB) 117.

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:

SQ5ANT · Poland ×3 UN0GY · Kazakhstan ×2 CR7BRV · Portugal EA5RJ · Spain EA7R · Spain EA4D · Spain KB2ELA · United States M7FQH · England HB9ELE · Switzerland IN3IBW · Italy KB3Z · United States OZ9FF · Denmark

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
11-04 10:10	10m	- / -13	EA5RJ	+3 / -	3	✓ Closing fragment
11-01 16:33	60m	- / -6	IK0BAL	-1 / -	2	✓ Closing fragment
11-01 16:28	60m	-17 / -	9A4ZM	+5 / +5	3	Partial capture
11-01 12:01	10m	- / +5	EA7R	+6 / -	2	✓ Closing fragment
10-14 17:42	60m	-18 / -	SQ9SET	- / -20	2	Partial capture
10-14 17:39	160m	-4 / +1	DO9AO	+10 / +1	4	Partial capture
10-14 17:32	40m	- / -	RZ4FWA	-17 / -	3	Partial capture
10-14 17:32	40m	- / -11	UN0GY	-10 / -	2	✓ Closing fragment
10-13 21:29	80m	+2 / -11	TA7ARH	+2 / -3	6	✓ Full exchange observed
10-13 21:27	80m	+6 / -16	5B4AMX	-16 / -8	4	✓ Full exchange observed
10-13 21:26	80m	- / -6	DP75BAC	-5 / -	2	Partial capture
10-13 20:58	40m	- / -	F5NNN	-3 / -	5	Partial capture
10-13 09:21	40m	-13 / -	PI7Q	- / -9	5	Partial capture
10-13 09:19	40m	- / -	HF5W	-3 / -	2	Partial capture
10-13 09:19	40m	-12 / -4	OZ9FF	-14 / -4	4	✓ Full exchange observed
10-13 08:51	10m	- / -17	CR7BRV	+1 / -	2	✓ Closing fragment
10-12 07:22	40m	-13 / -7	HB9ELE	+7 / -5	4	✓ Full exchange observed
10-11 20:45	80m	-6 / -	CT7AIU	- / -9	2	Partial capture
10-10 21:19	80m	-16 / -	CT7AUT	- / -23	2	Partial capture
10-10 07:14	40m	-6 / -	W1FAM	- / -17	7	Partial capture
10-10 07:12	40m	-10 / -12	SQ5ANT	-8 / -	3	✓ Closing observed
10-10 06:51	40m	-6 / +1	IN3IBW	+4 / +3	4	✓ Full exchange observed
10-09 19:06	80m	-7 / -4	SQ5ANT	+6 / +2	4	✓ Full exchange observed
10-04 17:18	80m	-4 / -	HB3YPJ	- / -18	4	Partial capture
10-04 17:16	80m	- / -	UA4FKT	+9 / -	3	Partial capture
10-04 17:12	80m	0 / -	UN0GY	- / -18	8	✓ Closing fragment
09-26 08:53	40m	-19 / -	SV9QWC	- / -15	3	✓ Closing fragment
09-26 08:53	40m	- / -4	SP2EOE	-16 / -	2	Partial 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

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
092230 -14 1138  PI7Q SP9THC -09 (x3)
203630  -6 1533  SP9THC PD0LBY JO22
205800  +2  820  SP9THC F5NNN IN94 (x5)
173200 -10 2646  SP9THC UN0GY R-11 (x2)
173230 -18 1772  SP9THC RZ4FWA LO23 (x3)
104145  -3 1138  DL40EUDXF SP9THC -06

10m

UTC    dB Audio  Message
085130  -1  971  SP9THC CR7BRV R-17 (x2)
120130  +8 3031  SP9THC EA7R R+05 (x2)
101000  +3  643  SP9THC EA5RJ R-13 (x3)

60m

UTC    dB Audio  Message
174230 -18 1132  SQ9SET SP9THC -20 (x2)
162815 -19 1132  HB9HHB SP9THC RR73
162830  +3 1128  SP9THC 9A4ZM JN86 (x2)
163015 -17 1131  9A4ZM SP9THC +05
163330  +1 2166  SP9THC IK0BAL R-06 (x2)

160m

UTC    dB Audio  Message
173900  -4 1100  DO9AO SP9THC +01
173915  +4  852  SP9THC DO9AO R+01 (x3)

80m

UTC    dB Audio  Message
204600  -8 1101  CT7AIU SP9THC -09
202615  +1 1101  HG0NPJ SP9THC RR73
212545  +7 1101  I8/ON8SGA SP9THC +00
212600  -1 2173  SP9THC DP75BAC R-06 (x2)
212715  +8 1101  5B4AMX SP9THC -08
212730 -18 1656  SP9THC 5B4AMX R-16
212745  +5 1102  5B4AMX SP9THC RR73
212800 -15 1656  SP9THC 5B4AMX 73
212900  +2 1101  TA7ARH SP9THC -03 (x3)
213015  +2 1344  SP9THC TA7ARH R-11
213030  +0 1101  TA7ARH SP9THC RR73
213045  +3 1344  SP9THC TA7ARH 73

20m

UTC    dB Audio  Message
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

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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