OZ1SLS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Denmark Most frequent locator attributed to this token: JO55

Receiver-side FT8 activity involving OZ1SLS, decoded by SO8OO in southeastern Poland. 52 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 17 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-09-16.

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 52 FT8 messages attributed to OZ1SLS as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (71%), followed by 40 m (12%) and 20 m (10%). Most decodes (83%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-12 dB

Estimated median S/N

Bands

80m · 37 60m · 4 40m · 6 20m · 5

First attributed message: 2026-06-15
Last attributed message: 2026-09-16 18:55 UTC

Observed FT8 message patterns

Attributed sample: 52 messages
Active dates: 17 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -22 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 24, 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 OZ1SLS in decoded directed-looking exchanges:

9K2GR · Kuwait DL3MIB · Fed. Rep. of Germany F4PCM · France F5IXN · France GB1TMH · England II1WWA · Italy IK4LZH · Italy KF0YOB · United States LZ1RAY · Bulgaria 2E0FHM · England GM0MKM · Scotland SP6FME · Poland

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 OZ1SLS

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: JO55 · 29 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 953 km (approx.)
Last such locator decoded: 2026-09-16 18:55 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	OZ1SLS S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-16 18:58	60m	- / -	US2YW	+3 / -	3	Partial capture
09-16 18:53	60m	- / -14	II9IAGM	+4 / -	2	Partial capture
09-13 18:12	80m	-13 / -	OZ/DG4BRT	- / -	2	Partial capture
09-12 19:22	40m	- / -18	II6IGTO	-12 / -	2	Partial capture
09-12 09:33	40m	- / -	HG8LXL	-4 / -	4	Partial capture
09-12 09:33	40m	- / -15	SP6FME	-3 / -	5	✓ Closing fragment
09-12 09:31	40m	- / -3	DJ0MAB	-12 / -	2	Partial capture
09-10 19:04	80m	- / -15	3Z0SYBIR	+7 / -	3	Partial capture
09-10 18:56	80m	- / -14	3Z0SYBIR	+9 / -	2	Partial capture
09-10 18:22	80m	-6 / -14	YL2NX	+4 / -16	6	✓ Full exchange observed
09-10 18:20	80m	-9 / -6	SN40KZE	+11 / -3	2	Partial capture
09-10 18:16	80m	-8 / -11	SP8XGU	+6 / -7	5	✓ Full exchange observed
09-10 17:18	40m	-9 / -20	GM0MKM	-4 / -26	8	✓ Full exchange observed
09-10 17:17	40m	- / -3	2E0FHM	-13 / -	2	✓ Closing fragment
08-28 17:58	80m	- / -9	OZ1NIB	-3 / -	2	✓ Closing fragment
08-28 17:25	20m	- / -11	II7MGBT	-9 / -	4	Partial capture
08-26 22:14	80m	-8 / -6	HA7TM	+20 / -6	5	Partial capture
08-25 08:57	20m	- / 0	R1530IG	-1 / -	2	Partial capture
08-24 14:14	20m	- / -16	ON1JP	-16 / -	2	Partial capture
08-24 14:12	20m	- / -1	IR7MGGC	+2 / -	2	Partial capture
08-23 13:20	20m	- / -15	F5CUN	+6 / -	7	Partial capture
08-22 08:46	20m	-20 / -14	DL3MIB	+16 / -	6	✓ Closing observed
08-22 08:45	20m	- / -6	GB1TMH	-10 / -	2	✓ Closing fragment
08-17 20:40	80m	-14 / -	PG5FRL	- / -12	2	✓ Closing fragment
08-15 21:06	80m	- / -1	OU7M	-8 / -	3	✓ Closing fragment
08-15 21:01	80m	-15 / -6	RX3DPK/LH	-4 / -11	2	Partial capture
08-15 20:54	80m	- / -13	SE7LH	+1 / -	3	✓ Closing fragment
08-15 20:51	80m	-11 / 0	DA0LH	+22 / +2	6	✓ Full exchange observed
08-11 07:33	20m	- / -1	YO1BRANCUSI	+1 / -	3	Partial capture
08-07 19:51	60m	-10 / -8	SM4TIW	-4 / -15	6	✓ Full exchange observed
08-07 19:49	60m	- / -6	ON7GB	+3 / -	4	✓ Closing fragment
08-07 19:43	80m	-13 / -3	DO5HOK	-8 / -	3	✓ Closing observed
08-01 11:58	20m	- / -2	IK4LZH	0 / -	2	✓ Closing fragment
07-31 15:13	20m	- / +5	F4PCM	+10 / -	2	✓ Closing fragment
07-07 02:15	80m	- / -	DL9ATW	-10 / -	3	Partial capture
07-07 02:13	80m	-10 / -	LZ01MIKU	- / -	2	Partial capture
07-07 02:04	80m	-12 / -9	LZ01MIKU	+9 / -9	3	Partial capture
07-07 01:57	80m	- / 0	LZ01MIKU	+7 / -	2	Partial capture
07-06 12:51	20m	- / -4	LZ1RAY	+5 / -	2	✓ Closing fragment
07-04 19:21	20m	- / -14	CS2WWA	-22 / -	2	Partial capture
07-04 11:37	20m	- / -22	II1WWA	-18 / -	2	✓ Closing fragment
06-23 11:47	20m	- / -2	F5IXN	-13 / -	4	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
195030  +2  980  OZ1SLS ON7GB JO21
195130  -5  736  OZ1SLS SM4TIW JO79 (x2)
195200  +3  980  OZ1SLS ON7GB R-06 (x2)
195245 -10  737  SM4TIW OZ1SLS -15
195300  -3  736  OZ1SLS SM4TIW R-08
195315 -11  736  SM4TIW OZ1SLS RR73
195330  -3  737  OZ1SLS SM4TIW 73
185330  +3  635  OZ1SLS II9IAGM -14 (x2)
185545 -24 1366  II8IHBC OZ1SLS JO55
185830  +2 1365  OZ1SLS US2YW KN28 (x3)

80m

UTC    dB Audio  Message
182015  -9  620  SN40KZE OZ1SLS R-03
182245  -2  342  YL2NX OZ1SLS JO55 (x2)
182330  +4  342  OZ1SLS YL2NX -14
182345  -7  342  YL2NX OZ1SLS R-16
182400  +3  342  OZ1SLS YL2NX RR73
182415  -5  341  YL2NX OZ1SLS 73
185645 +12 1072  OZ1SLS 3Z0SYBIR -14 (x5)
181215 -13 2022  OZ/DG4BRT OZ1SLS JO55 (x2)
181315  -7  318  UB3ADO/P OZ1SLS R-19

40m

UTC    dB Audio  Message
172030  -8 3027  OZ1SLS GM0MKM RR73
172045 -10 3027  GM0MKM OZ1SLS 73
093130 -11  958  OZ1SLS DJ0MAB JN49 (x2)
093300  -3  959  OZ1SLS SP6FME JO90
093300  +0 1649  OZ1SLS HG8LXL KN06
093330  +1  959  OZ1SLS SP6FME JO90
093330  -5 1649  OZ1SLS HG8LXL KN06
093400  -3  959  OZ1SLS SP6FME JO90
093400  -8 1649  OZ1SLS HG8LXL KN06 (x2)
093500  -4  959  OZ1SLS SP6FME R-15 (x2)
192200 -14 1220  OZ1SLS II6IGTO -18 (x2)

20m

UTC    dB Audio  Message
141200  +3 1756  OZ1SLS IR7MGGC -01 (x2)
141430 -16 1523  OZ1SLS ON1JP -16 (x2)
143645  -3 1869  OZ1SLS II7MGMU -19
150100  -8 1756  OZ1SLS IR7MGGC -12
154915 -15  906  II7MGXX OZ1SLS JO55
085730  +0 1877  OZ1SLS R1530IG +00 (x2)
172500 -11 2103  OZ1SLS II7MGBT -11 (x4)
124300 -17 2033  OH/SM5MRW OZ1SLS JO55
133730  -4 2422  OZ1SLS IU5HIU JN53

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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