ON8SL — 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: Belgium Most frequent locator attributed to this token: JN29

Receiver-side FT8 activity involving ON8SL, decoded by SO8OO in southeastern Poland. 833 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, across 37 UTC dates in the available aggregate history. Observed between 2026-09-19 and 2026-11-02.

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 833 FT8 messages attributed to ON8SL as the transmitting token by decoded message structure across 37 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (71%), followed by 40 m (25%) and 80 m (3%). Most decodes (82%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (64%); the estimated median was -17 dB.

Overview

833

Messages attributed

UTC dates decoded

152

Active 15-min windows

-17 dB

Estimated median S/N

Bands

160m · 5 80m · 26 60m · 594 40m · 208

First attributed message: 2026-09-19
Last attributed message: 2026-11-02 18:37 UTC

Observed FT8 message patterns

Attributed sample: 833 messages
Active dates: 37 UTC dates
Estimated median S/N: -17 dB
Estimated 10th-90th percentile: -23 to -10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 535, moderate (-15 to -9 dB) 254, strong (≥ -8 dB) 44.

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 ON8SL in decoded directed-looking exchanges:

HA7TM · Hungary ×4 DK7ZT · Fed. Rep. of Germany ×3 DD7EE · Fed. Rep. of Germany ×2 DL9KM · Fed. Rep. of Germany ×2 ON3PDM · Belgium ×2 F5HNQ · France ×2 ON4CJU · Belgium ×2 ON8FAB · Belgium ×2 ON1BH · Belgium ×2 9A1CCB · Croatia CT7BRV · Portugal DF0AWG · 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 ON8SL

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: JN29 · 467 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,206 km (approx.)
Last such locator decoded: 2026-11-02 18:37 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	ON8SL S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-30 11:35	40m	- / -15	DH2NJS	-14 / -	3	✓ Closing fragment
10-29 22:54	40m	- / -19	UA4FKT	+2 / -	3	✓ Closing fragment
10-29 22:23	80m	- / -18	DD7EE	+7 / -	3	✓ Closing fragment
10-29 11:53	40m	- / -17	S53AK	-3 / -	7	Partial capture
10-29 11:49	40m	- / -	9A4ZM	-11 / -	3	Partial capture
10-29 11:47	40m	- / -	SP5HQZ	-12 / -	2	Partial capture
10-29 11:38	40m	- / -	9A4ZM	-17 / -	2	Partial capture
10-29 11:31	40m	- / -6	DD7EE	-6 / -	3	✓ Closing fragment
10-29 11:28	40m	- / -	S53AK	0 / -	2	Partial capture
10-29 11:02	40m	- / -	DH2NJS	-13 / -	9	Partial capture
10-29 11:01	40m	- / -	DL7ACA	-2 / -	3	Partial capture
10-28 23:11	60m	- / -13	MI0TMW	0 / -	3	Partial capture
10-28 23:04	80m	- / -	S50XX	+8 / -	8	Partial capture
10-28 23:03	80m	- / -15	F5HNQ	+2 / -	4	Partial capture
10-28 23:02	80m	- / -	F5PBG	+5 / -	2	Partial capture
10-28 01:38	80m	- / -	DO1OAS	-9 / -	8	Partial capture
10-28 01:23	60m	-20 / -	VE3EY	- / -	3	Partial capture
10-28 00:25	80m	- / -	S50XX	+9 / -	7	Partial capture
10-28 00:22	80m	- / -	EA1IOK	-3 / -	5	Partial capture
10-28 00:22	80m	- / -	DO1OAS	-5 / -	6	Partial capture
10-28 00:21	80m	- / -	ON4MAP	-8 / -	5	Partial capture
10-28 00:18	80m	- / -	S50XX	+10 / -	6	Partial capture
10-28 00:14	80m	- / -	LZ2VQ	-4 / -	2	Partial capture
10-28 00:13	80m	- / -9	EA1IOK	-3 / -	9	Partial capture
10-28 00:13	80m	- / -4	F4CTJ	0 / -	9	✓ Closing fragment
10-28 00:06	60m	-20 / -10	EA1AGM	-16 / -11	3	Partial capture
10-28 00:03	60m	-16 / -25	KK4CDK	-16 / -	3	✓ Closing observed
10-27 23:50	60m	- / -10	LZ26IPA	-12 / -	2	Partial capture
10-27 23:49	60m	-18 / -	GM4ZMK	-10 / -16	5	✓ Closing observed
10-27 23:44	80m	- / -13	OK1WCF	+12 / -	3	✓ Closing fragment
10-27 23:42	80m	- / -	DO1OAS	-6 / -	2	Partial capture
10-27 23:42	80m	- / -19	DO3BOX	-5 / -	2	Partial capture
10-27 23:41	80m	- / -	DG5PW	-13 / -	2	Partial capture
10-27 23:38	80m	- / -23	HA7TM	+14 / -	4	✓ Closing fragment
10-27 23:36	80m	- / -	DO1OAS	-4 / -	5	Partial capture
10-27 23:31	80m	- / -	F4BND	-8 / -	7	Partial capture
10-27 23:29	80m	- / -25	IQ4JO	+3 / -	4	✓ Closing fragment
10-27 23:27	80m	- / -	DO1OAS	-2 / -	7	Partial capture
10-27 23:27	80m	- / -	EA1IOK	-4 / -	5	Partial capture
10-27 09:58	40m	- / +1	DH1NGL	-13 / -	3	✓ Closing fragment
10-26 21:44	60m	-14 / -	DA6DNA	- / -	2	Partial capture
10-26 21:43	80m	- / -14	OZ1LD	0 / -	3	Partial capture
10-26 18:52	60m	- / +7	ON6MDG	-11 / -	8	✓ Closing fragment
10-26 01:58	40m	- / -6	CT7BRV	-8 / -	2	✓ Closing fragment
10-26 01:53	60m	-15 / -4	ER3ZW	-12 / -10	4	✓ Full exchange observed
10-26 01:49	80m	- / -	PC2J	0 / -	2	Partial capture
10-26 01:48	80m	- / -	F5PBG	-6 / -	2	Partial capture
10-26 01:46	80m	- / -	EA1IOK	-9 / -	5	Partial capture
10-26 01:46	80m	- / -	ON4MAP	-17 / -	2	Partial capture
10-26 01:45	80m	- / -	DO9BAU	+3 / -	13	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
225445  +5 1541  ON8SL UA4FKT LO23 (x3)
113515 -14 1540  ON8SL DH2NJS JO50 (x3)
113915 -16 1926  ON8SL DF6SA JN48
183215 -20 1541  CQ ON8SL JN29 (x8)

60m

UTC    dB Audio  Message
012400 -21 1527  VE3EY ON8SL JN29
012530 -20 1527  CQ ON8SL JN29 (x3)
013000 -24 1527  HG2DX ON8SL 73
013230 -24 1527  CQ ON8SL JN29 (x6)
231130  +2  972  ON8SL MI0TMW -13 (x3)
230800 -16 1534  CQ ON8SL JN29

80m

UTC    dB Audio  Message
230345  +2 2066  ON8SL F5HNQ R-15
230415 +12 1504  ON8SL S50XX JN65
230415  +1 2066  ON8SL F5HNQ R-15
230445  +5 1504  ON8SL S50XX JN65
230445  +3 2066  ON8SL F5HNQ R-15
230515  +4 1504  ON8SL S50XX JN65
230515  +3 2066  ON8SL F5HNQ R-15
230545 +10 1504  ON8SL S50XX JN65 (x5)
222300  +5 2199  ON8SL DD7EE JO41 (x3)

10m

UTC    dB Audio  Message
110815 -12 1431  ON8SL I8IGS JM78 (x4)

160m

UTC    dB Audio  Message
214600 -22 1385  N3QED ON8SL -18 (x5)

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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