SP3GHC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO82

Receiver-side FT8 activity involving SP3GHC, decoded by SO8OO in southeastern Poland. 780 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 23 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-10-04.

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 780 FT8 messages attributed to SP3GHC as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (90%), followed by 20 m (10%). Most decodes (72%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

780

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

40m · 702 20m · 78

First attributed message: 2026-06-20
Last attributed message: 2026-10-04 19:51 UTC

Observed FT8 message patterns

Attributed sample: 780 messages
Active dates: 23 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -19 to +1.5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 151, moderate (-15 to -9 dB) 182, strong (≥ -8 dB) 447.

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 SP3GHC in decoded directed-looking exchanges:

R1QF · European Russia ×2 DL6BST · Fed. Rep. of Germany ×2 R3PJ · European Russia ×2 UB3ANV · European Russia ×2 CX6TU · Uruguay 5N0YEN · Nigeria BG5JGG · China HS0ZOY · Thailand JA6TXU · Japan M7JVT · England PD3CFG · Netherlands R6ZEJ · European Russia

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.

Most frequent locator attributed to SP3GHC

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator: JO82 · 370 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 439 km (approx.)
Last such locator decoded: 2026-10-01 17:27 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

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	SP3GHC S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-05 18:41	40m	- / -9	RA1QCX	-21 / -	2	Partial capture
10-04 20:10	40m	- / -	RZ4FWA	-21 / -	3	Partial capture
10-04 20:09	40m	- / 0	HB9EFK	+6 / -	2	✓ Closing fragment
10-04 19:51	40m	-22 / -	UF5F	-2 / -	2	✓ Closing observed
10-04 19:49	40m	- / +1	IW3HXR	-9 / -	3	✓ Closing fragment
10-04 19:41	40m	- / -10	R2AGE	-6 / -	2	✓ Closing fragment
10-01 17:27	40m	-5 / -	G5MJF	- / -18	3	Partial capture
10-01 17:26	40m	-4 / -1	YO8SGC	-14 / -24	5	✓ Full exchange observed
10-01 17:24	40m	-6 / -	HZ1KS	- / -	2	Partial capture
10-01 17:22	40m	-8 / -2	RW1QN	-10 / -1	5	✓ Full exchange observed
10-01 17:21	40m	-7 / -	TA7MMI	- / -6	3	✓ Closing fragment
10-01 17:19	40m	-9 / -14	RA3ZOM	-7 / +1	5	✓ Full exchange observed
10-01 14:48	40m	-7 / -6	RU3ACA	-8 / +4	6	✓ Full exchange observed
10-01 14:47	40m	-6 / -	M1DBB	- / -7	2	✓ Closing fragment
10-01 14:46	40m	-10 / -	YO2UKG	- / -	2	Partial capture
10-01 14:43	40m	-8 / -	UA0ACZ	- / -	3	Partial capture
10-01 14:41	40m	-3 / -	R1QF	- / -5	3	✓ Closing fragment
09-28 18:40	40m	- / -15	9A3MRN	+1 / -	2	✓ Closing fragment
09-28 18:36	40m	- / -12	UB3ANV	-8 / -	5	✓ Closing fragment
09-28 18:30	40m	- / -12	UB3ANV	-9 / -	6	Partial capture
09-28 13:01	40m	-16 / -8	OK2SZ	-17 / -7	5	✓ Full exchange observed
09-28 13:00	40m	-20 / -9	DG3YEV	0 / +5	5	✓ Full exchange observed
09-28 12:56	40m	-16 / +4	DK3NU	-9 / -4	5	✓ Full exchange observed
09-28 12:54	40m	-14 / -	F1IQH	- / -	3	Partial capture
09-28 12:52	40m	-17 / -	PE9JAN	- / -3	3	✓ Closing fragment
09-27 23:59	40m	- / +7	F6FDY	-4 / -	5	✓ Closing fragment
09-27 23:57	40m	- / -12	A61DD	-13 / -	3	✓ Closing fragment
09-27 23:48	40m	- / -	RZ4FWA	-16 / -	2	Partial capture
09-27 12:06	40m	-21 / -	DC9GT	- / -9	2	✓ Closing fragment
09-27 12:01	40m	-20 / +10	SP2HJN	-13 / -13	9	✓ Full exchange observed
09-27 11:58	40m	- / +1	SQ2NIG	-16 / -	5	✓ Closing fragment
09-27 11:53	40m	-18 / -2	SO3UOU/M	-12 / -	4	Partial capture
09-27 11:51	40m	-20 / -	EU1AFX	- / -8	2	✓ Closing fragment
09-27 11:49	40m	-16 / 0	LB1HI	-13 / +1	4	✓ Full exchange observed
09-27 11:34	40m	-16 / -	PE1BSF	- / 0	3	✓ Closing fragment
09-27 11:26	40m	-16 / -5	SQ7KHW	-17 / -14	4	✓ Full exchange observed
09-27 11:24	40m	-18 / +5	DH3KR	-22 / -8	6	Partial capture
09-27 11:24	40m	- / -	F4BYA	-4 / -	3	Partial capture
09-27 11:22	40m	-20 / -	UA3YFS	- / -	2	Partial capture
09-27 11:16	40m	-18 / -	PA7D	- / -19	2	Partial capture
09-27 11:09	40m	- / -	F4BYA	-6 / -	2	Partial capture
09-27 11:08	40m	-20 / -	DG9SEH	- / -7	2	✓ Closing fragment
09-27 11:06	40m	-20 / -	SM7IUN	- / +1	2	✓ Closing fragment
09-27 11:00	40m	-10 / -13	EW8DU	-15 / +2	5	✓ Full exchange observed
09-27 11:00	40m	-13 / -	G3JPJ	- / -	2	Partial capture
09-27 10:57	40m	-19 / -	OE3EAR	- / -6	7	✓ Closing fragment
09-26 20:18	40m	- / -4	RX3AEX	-2 / -	2	✓ Closing fragment
09-26 20:01	40m	- / -10	F6BHK	-14 / -	2	Partial capture
09-26 19:44	40m	- / -	IU8RFW	-20 / -	2	Partial capture
09-26 19:35	40m	- / -14	M0IEP	-12 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
195000  -8 1457  SP3GHC IW3HXR 73
195115  -2 1983  SP3GHC UF5F RR73
195130 -22 1804  UF5F SP3GHC 73
200300  -4 2470  SP3GHC R3XDT -03
200745  -1 1805  SP3GHC M0MLS RR73
200945  +5 2516  SP3GHC HB9EFK +00 (x2)
201045 -20 2027  SP3GHC RZ4FWA LO23
201115  -5  487  SP3GHC SP1550SK +00
201115 -22 2028  SP3GHC RZ4FWA LO23 (x2)
183815  -6 2606  SP3GHC RD3FY RR73
184115 -21 1853  SP3GHC RA1QCX KP80
184145  -7 2623  SP3GHC M1AOB -04
184215 -21 1852  SP3GHC RA1QCX R-09

10m

UTC    dB Audio  Message
131545 -12  584  SP3GHC PY4BAL R-14
131730  -6  486  SP3GHC CS7AWL +01
175445 -22 2106  SP3GHC CX6TU -04 (x2)

20m

UTC    dB Audio  Message
180230 -15 1800  UA9QFF SP3GHC 73
180300  -6 1578  YH3AE SP3GHC JO82
180445  -4 1969  YH7OA SP3GHC R-09
180530  -6 1969  YH3AE SP3GHC JO82 (x2)
180800  -5 1863  UA3YPS SP3GHC JO82
180830  -7 1407  BG7ZHS SP3GHC JO82
180930 -10 1495  BG5JGG SP3GHC JO82 (x2)
181145 -20 1627  SP3GHC EA3AAY JN11 (x2)
202115 -13 1538  SP3GHC JA6TXU +04 (x2)
204400  -6  523  SP3GHC T77RN +14 (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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