ON2SLC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Belgium Most frequent locator attributed to this token: JO10

Receiver-side FT8 activity involving ON2SLC, decoded by SO8OO in southeastern Poland. 86 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-09-10.

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 86 FT8 messages attributed to ON2SLC as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (84%), followed by 40 m (16%). Several six-hour UTC windows tied for the largest share (62%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

40m · 14 20m · 72

First attributed message: 2026-06-15
Last attributed message: 2026-09-10 16:06 UTC

Observed FT8 message patterns

Attributed sample: 86 messages
Active dates: 8 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -20 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 31, moderate (-15 to -9 dB) 41, strong (≥ -8 dB) 14.

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 ON2SLC in decoded directed-looking exchanges:

OZ9FF · Denmark ×2 EB3JT · Spain F8NHF · France F4AWT · France G4UJS · England OZ5THY · Denmark RZ4FWA · European Russia SM0SWD · Sweden DA0WWA · Fed. Rep. of Germany DB1SN · Fed. Rep. of Germany DF3RP · Fed. Rep. of Germany DL1SRS · 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.

Most frequent locator attributed to ON2SLC

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: JO10 · 70 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,335 km (approx.)
Last such locator decoded: 2026-09-10 16:06 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	ON2SLC S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 07:55	40m	- / -14	SN100PKP	-6 / -	2	Partial capture
09-13 07:46	40m	- / -13	DL6UCK	+2 / -	7	✓ Closing fragment
09-11 10:20	40m	- / -21	OE/DG7CF	-14 / -	2	Partial capture
09-11 10:09	40m	- / -15	OZ/KD0NDU	-6 / -	2	Partial capture
09-11 10:02	40m	- / -	SP7ROM	-12 / -	3	Partial capture
09-11 10:01	40m	- / -7	DL3DUE	-6 / -	4	✓ Closing fragment
09-10 15:58	40m	- / -13	DL1SRS	-14 / -	2	✓ Closing fragment
09-10 15:42	40m	-19 / -20	LB6NK	-8 / -13	4	✓ Full exchange observed
09-08 16:03	40m	- / -16	HB0WR	-14 / -	2	Partial capture
08-27 19:08	20m	- / -30	IR7MGGC	-13 / -	3	Partial capture
08-27 15:49	20m	- / -9	G4UJS	-4 / -	2	✓ Closing fragment
08-27 15:44	20m	-12 / -15	SM0SWD	-14 / -11	5	✓ Full exchange observed
08-27 15:40	20m	-14 / -	DG9ZL	- / -12	2	Partial capture
08-26 15:26	20m	-6 / -	EP2AES	- / -	2	Partial capture
08-25 15:28	40m	- / -21	SP3AU	-4 / -	2	✓ Closing fragment
08-25 15:25	40m	- / -4	PA1PXL	-12 / -	3	✓ Closing fragment
08-24 16:05	40m	-14 / -	DL7UKM	-12 / -	3	Partial capture
08-24 15:54	40m	-19 / -14	DL80NRW	-14 / -	3	Partial capture
08-24 15:47	40m	- / -13	EW6DM/P	+1 / -	2	✓ Closing fragment
08-24 15:43	40m	- / -	SQ8V	-6 / -	3	Partial capture
08-24 15:38	40m	- / -	PD0LBY	-14 / -	2	Partial capture
08-24 15:31	40m	- / -6	F5LSK	-16 / -	2	✓ Closing fragment
08-23 15:52	20m	- / -7	F4AWT	+6 / -	3	✓ Closing fragment
08-23 08:39	20m	-3 / -14	OH6GAZ	-14 / -	2	Partial capture
08-23 08:34	20m	-14 / -17	RZ4FWA	-8 / -	9	✓ Full exchange observed
08-23 08:23	20m	-8 / -	UB8CPH	- / -	2	Partial capture
08-14 10:06	20m	-12 / -	CR7BUJ	- / -	2	Partial capture
08-13 13:50	10m	- / 0	F4NBB	-15 / -	2	Partial capture
08-13 10:09	10m	- / -18	F8NHF	-3 / -	3	✓ Closing fragment
08-09 15:57	40m	- / -	IK0XFD	-10 / -	3	Partial capture
08-06 15:19	40m	- / -10	SP5MIG/6	-22 / -	2	Partial capture
08-05 15:56	40m	- / -	E70SZ	-14 / -	2	Partial capture
08-05 15:43	40m	- / -2	DL2DSA	-4 / -	4	✓ Closing fragment
08-02 16:37	40m	- / 0	DL800PCH	-5 / -	2	Partial capture
08-02 16:32	40m	- / -10	OZ9FF	-13 / -	3	✓ Closing fragment
07-30 15:40	40m	- / -3	DL4JTH	-14 / -	2	✓ Closing fragment
07-29 14:21	40m	- / -9	OK5AG/P	-14 / -	4	✓ Closing fragment
07-23 09:03	20m	- / -15	SV5AZK	-16 / -	8	Partial capture
07-22 14:55	40m	- / -8	HF0S	-16 / -	2	✓ Closing fragment
07-17 15:38	40m	- / +1	DF3RP	-8 / -	6	✓ Closing fragment
07-17 15:33	40m	- / -6	DL9KM	-17 / -	3	✓ Closing fragment
07-12 15:37	40m	- / -	DK2KGB	-16 / -	3	Partial capture
07-12 15:31	40m	- / -	DK2KGB	-17 / -	7	Partial capture
07-10 16:07	40m	- / +2	DH9KFC	-7 / -	3	Partial capture
07-10 08:30	40m	- / -19	OZ9FF	-12 / -	3	✓ Closing fragment
07-09 15:38	40m	- / -11	DL6CMF	-12 / -	3	✓ Closing fragment
07-05 07:52	40m	- / -9	DF8RU	-18 / -	2	Partial capture
07-03 09:51	10m	- / -14	EB3JT	-16 / -	4	✓ Closing fragment
07-03 08:45	40m	- / +1	DA0WWA	-19 / -	3	✓ Closing fragment
07-02 15:52	40m	- / -18	OE6HTG	-22 / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
102015 -15 1596  ON2SLC OE/DG7CF -21 (x2)
102245 -21 2070  ON2SLC OZ6MM RR73
102445 -12  800  ON2SLC DF8MH +00
074600  +1  728  ON2SLC DL6UCK JO71 (x7)
094215 -21 1819  ON2SLC PD3FR R-08
075500  -8 2091  ON2SLC SN100PKP -14 (x2)
075600  -7 2091  ON2SLC RR73; OM0MR <...> -12

20m

UTC    dB Audio  Message
154600 -15 2107  CQ ON2SLC JO10
154630 -11 2107  DL1UDO ON2SLC -08
154800 -15 2107  CQ ON2SLC JO10 (x3)
154915  -2 2108  ON2SLC G4UJS -09 (x2)
155530  -8 2107  JA5SLV ON2SLC JO10
155600 -11 2107  CQ ON2SLC JO10 (x4)
190815 -17 1755  ON2SLC IR7MGGC R-30 (x3)

10m

UTC    dB Audio  Message
095145 -13 1245  ON2SLC EB3JT JN01 (x4)
100930  -7 2343  ON2SLC F8NHF JO10 (x3)
135030 -14  943  ON2SLC F4NBB +00 (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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