SP0YAGI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland

Receiver-side FT8 activity involving SP0YAGI, decoded by SO8OO in southeastern Poland. 1,091 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 41 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-10-05.

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 1,091 FT8 messages attributed to SP0YAGI as the transmitting token by decoded message structure across 41 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (80%), followed by 40 m (19%) and 20 m (0%). Most decodes (83%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (77%); the estimated median was 0 dB.

Overview

1,091

Messages attributed

UTC dates decoded

165

Active 15-min windows

0 dB

Estimated median S/N

Bands

80m · 877 40m · 212 20m · 2

First attributed message: 2026-06-09
Last attributed message: 2026-10-05 05:42 UTC

Observed FT8 message patterns

Attributed sample: 1,091 messages
Active dates: 41 UTC dates
Estimated median S/N: 0 dB
Estimated 10th-90th percentile: -17 to +10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 142, moderate (-15 to -9 dB) 111, strong (≥ -8 dB) 838.

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 SP0YAGI in decoded directed-looking exchanges:

SX48JM · Greece ×6 HF780C · Poland ×5 LZ67PP · Bulgaria ×5 OE6BAU · Austria AO77R · Spain DL1DWU · Fed. Rep. of Germany DL1WH · Fed. Rep. of Germany HF50HK · Poland OZ13JK · Denmark Z335MK · North Macedonia 8S7DL · Sweden DL4SKH · Fed. Rep. of Germany

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	SP0YAGI S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-05 10:12	40m	- / -	EW4DX	+12 / -	3	Partial capture
10-05 05:57	40m	- / -10	RD6AK	-12 / -	7	Partial capture
10-05 05:40	80m	- / -11	DH0KAI	-10 / -	2	Partial capture
10-05 04:40	80m	- / +1	DL3MIB	+9 / -	5	Partial capture
10-05 00:21	80m	- / -	M0LOW	-17 / -	3	Partial capture
10-04 21:19	80m	+2 / -	DL1FRH	- / -19	4	Partial capture
10-04 21:17	80m	- / -9	EU1EU	0 / -	2	Partial capture
10-04 21:04	80m	- / -	DD7EE	-1 / -	3	Partial capture
10-04 20:57	80m	- / -	DD7EE	+4 / -	5	Partial capture
10-04 20:56	80m	+1 / -	<...>	+1 / -	6	✓ Closing fragment
10-04 20:44	80m	-8 / -	<...>	+4 / -	7	✓ Closing fragment
10-04 20:43	80m	- / -13	OK1WCF	+12 / -	3	Partial capture
10-04 19:14	40m	- / -	IK3SCB	+5 / -	4	Partial capture
10-04 18:32	80m	-4 / -	<...>	-3 / -	2	✓ Closing fragment
10-04 18:31	80m	-4 / -3	DL4KBK	-6 / -8	3	Partial capture
10-04 18:21	80m	- / -	OK3NKO	+5 / -	3	Partial capture
10-04 16:28	80m	- / -17	RL7Z	-14 / -	3	Partial capture
10-04 16:28	80m	- / -15	UD7G	-7 / -	3	Partial capture
10-04 05:30	80m	- / 0	F8VNU	-13 / -	2	Partial capture
10-04 04:16	80m	- / -23	DH3MIT	+18 / -	4	Partial capture
10-04 03:44	40m	- / -8	RM8W	-2 / -	2	Partial capture
10-04 01:42	80m	- / -5	OK1HEH	+15 / -	3	Partial capture
10-03 21:13	80m	- / +1	OK2SPZ	+12 / -	2	Partial capture
10-03 21:07	80m	- / -	<...>	+6 / -	2	✓ Closing fragment
10-03 21:07	80m	- / -5	OK2SPZ	+12 / -	2	Partial capture
10-03 21:00	80m	- / -	<...>	+8 / -	2	✓ Closing fragment
10-03 21:00	80m	- / -1	DK9PH	+10 / -	3	Partial capture
10-03 20:59	80m	+13 / -12	DD7EE	+3 / +1	2	Partial capture
10-03 20:45	80m	- / -	SP1MGM	+2 / -	3	Partial capture
10-03 20:25	80m	- / -	DH8BAC	+19 / -	5	Partial capture
10-03 08:04	40m	- / +1	DL9KM	-4 / -	3	Partial capture
10-03 07:27	40m	-19 / -	<...>	-3 / -	2	✓ Closing fragment
10-03 07:26	40m	- / -	I5HLK	-14 / -	4	Partial capture
10-03 06:54	40m	-24 / -	<...>	-16 / -	3	✓ Closing fragment
10-03 06:46	40m	- / -12	SP6SPK	-12 / -	5	Partial capture
10-03 06:40	40m	- / -1	SP5NON	-4 / -	3	Partial capture
10-03 06:34	40m	- / -	<...>	-2 / -	2	✓ Closing fragment
10-03 06:26	40m	- / -	<...>	-2 / -	2	✓ Closing fragment
10-03 06:26	40m	- / -14	SP7LPD	-2 / -	2	Partial capture
10-03 06:24	40m	- / -	SP1MGM	-14 / -	3	Partial capture
10-03 06:08	40m	- / -	YO3GNF	-10 / -	6	Partial capture
10-03 05:03	80m	- / -	RA1NBG	-16 / -	3	Partial capture
10-03 04:36	80m	- / -13	EU1EU	+4 / -	4	Partial capture
10-03 03:13	80m	- / -24	OM5FM	+14 / -	4	Partial capture
10-03 02:08	80m	- / -	IK6GTF	-5 / -	3	Partial capture
10-02 21:52	80m	+2 / -	DO6SR	- / -22	9	Partial capture
10-02 21:30	80m	-11 / -	DO6SR	- / -22	4	Partial capture
10-02 21:24	80m	-2 / -6	DO6SR	-14 / -22	6	Partial capture
10-02 21:23	80m	+4 / -	<...>	+5 / -	2	✓ Closing fragment
10-02 21:20	80m	+1 / -	DL4ALI	+8 / -1	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
191430  +3  756  SP0YAGI IK3SCB JN55 (x3)
055715 -11 1044  SP0YAGI RD6AK KN85 (x7)
062815  -8  761  SP0YAGI SP3VST JO82
072615  -8  766  SP0YAGI G0JEI -17
101245 +11  763  SP0YAGI EW4DX KO23 (x3)

80m

UTC    dB Audio  Message
002200 -21 1000  SP0YAGI M0LOW IO90 (x2)
035230  +0 1005  SP0YAGI UT5MB -12
035430 -23 1004  SP0YAGI DL7ROB JN58
044045  +6 1034  SP0YAGI DL3MIB JN57 (x5)
044545  -1 1424  SP0YAGI IU5VMC +00
052815  -6 2230  SP0YAGI DH0KAI JO30 (x4)
054215  -1 1929  HF780C SP0YAGI 73

20m

UTC    dB Audio  Message
100130  -3 1078  SP0YAGI M8FQT R-12
100200  -9 1078  SP0YAGI <...> 73 (x3)
094300  -9 1208  SP0YAGI F1IQH JN27 (x5)
154630 +14  752  SP0YAGI <...> 73
154730 +13  752  SP0YAGI G0RVY JO01 (x4)
062915  +0 1543  SP0YAGI <...> 73

10m

UTC    dB Audio  Message
065400  -8  886  SP0YAGI <...> 73 (x7)
111615 -10 1189  SP0YAGI RC6OG KN98
062130 -10 1496  SP0YAGI <...> 73
063730 -14 1497  SP0YAGI DN9AD JO52 (x4)
083630 -12 1042  SP0YAGI <...> 73 (x2)

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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