OZ3XY — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving OZ3XY, decoded by SO8OO in southeastern Poland. 342 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 24 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-20.

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 342 FT8 messages attributed to OZ3XY as the transmitting token by decoded message structure across 24 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (48%), followed by 40 m (25%) and 80 m (23%). Several six-hour UTC windows tied for the largest share (54%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (76%); the estimated median was -1 dB.

Overview

342

Messages attributed

UTC dates decoded

Active 15-min windows

-1 dB

Estimated median S/N

Bands

160m · 4 80m · 77 40m · 87 20m · 164 10m · 10

First attributed message: 2026-06-08
Last attributed message: 2026-09-20 21:03 UTC

Observed FT8 message patterns

Attributed sample: 342 messages
Active dates: 24 UTC dates
Estimated median S/N: -1 dB
Estimated 10th-90th percentile: -14 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 25, moderate (-15 to -9 dB) 56, strong (≥ -8 dB) 261.

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 OZ3XY in decoded directed-looking exchanges:

YO4LUP · Romania ×2 EA1CQ · Spain I5PU · Italy YO4NF · Romania 3A2MW · Monaco 5B4AMX · Cyprus 9A5E · Croatia BH4HTD · China BI4XDT · China CN2DX · Morocco EB3JT · Spain EC5M · Spain

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 OZ3XY

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 · 138 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 953 km (approx.)
Last such locator decoded: 2026-09-20 21:03 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	OZ3XY S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 20:59	160m	-15 / -	RI1FJZ	- / -	3	Partial capture
09-17 07:07	40m	-7 / -	J88IH	- / -	2	Partial capture
08-31 23:54	80m	+4 / -3	SP9YGD	+8 / -	4	✓ Closing observed
08-31 23:52	80m	-2 / -	G8OO	-9 / +7	5	✓ Closing observed
08-31 23:50	80m	-3 / -	R8FH	- / -6	3	✓ Closing fragment
08-31 23:49	80m	- / -2	GM6URC	-15 / -	4	Partial capture
08-31 23:48	80m	- / -	EA5HM	-16 / -	2	Partial capture
08-31 23:47	80m	- / -	F5NNN	-14 / -	5	Partial capture
08-31 23:47	80m	-2 / -3	LZ2VQ	-1 / +6	6	✓ Full exchange observed
08-31 23:46	80m	-3 / -	SV9QWC	-11 / -9	4	✓ Closing observed
08-27 12:30	20m	-3 / -	RI1FJL	- / -	3	Partial capture
08-26 19:09	20m	0 / -	CT1END/P	- / -	2	Partial capture
08-24 21:50	80m	+7 / -	LW2DO	- / -	2	Partial capture
08-24 21:43	80m	+15 / -12	IQ4JO	-5 / -	4	✓ Closing observed
08-24 21:43	80m	- / -	UR3QCB	-6 / -	2	Partial capture
08-24 21:40	80m	+12 / +8	DL5KMR	-22 / -6	5	✓ Full exchange observed
08-24 21:38	80m	+13 / -	GW3TYI	-17 / -8	3	Partial capture
08-24 21:38	80m	+12 / -1	DK8HC	0 / -	4	✓ Closing observed
08-24 21:37	80m	+14 / +8	UR5SG	+9 / -	5	✓ Full exchange observed
08-20 20:15	20m	- / -	IW5ABF	-9 / -	2	Partial capture
08-20 20:13	20m	- / -	CT1BFP	-6 / -	13	Partial capture
08-20 20:13	20m	- / -13	RN6MA	+13 / -	2	✓ Closing fragment
08-20 20:05	20m	- / -	CT1BFP	-7 / -	12	Partial capture
08-20 17:36	20m	-9 / -	BA4II	- / -6	2	Partial capture
08-20 17:33	20m	-10 / -4	UA3VVA	-3 / -	5	✓ Full exchange observed
08-20 17:31	20m	-10 / -	BG7BVI	- / -	2	Partial capture
08-20 17:28	20m	-11 / -	BG7BVI	- / -	2	Partial capture
08-12 16:55	20m	+2 / -	9V1SH	- / -17	5	Partial capture
08-12 16:52	20m	+2 / -	9V1SH	- / -	2	Partial capture
08-11 19:15	20m	-12 / -8	TA2ANK	+2 / +6	3	✓ Full exchange observed
08-10 22:21	80m	-10 / -2	DL3HN	-6 / +3	6	✓ Full exchange observed
08-10 22:18	80m	-6 / +9	PA3MVD	-16 / +1	7	✓ Full exchange observed
08-10 22:18	80m	-8 / +6	DL7GP	0 / -	7	✓ Full exchange observed
08-10 22:11	80m	-7 / -7	SV1SSL	-4 / -9	5	✓ Full exchange observed
08-10 22:08	80m	-2 / +1	DD0AM	-8 / -7	5	✓ Full exchange observed
08-10 22:08	80m	-4 / -	RC2DD	-9 / +10	4	✓ Closing observed
08-10 22:06	80m	-1 / +1	OE9HGV	-12 / 0	5	✓ Full exchange observed
08-10 22:04	80m	+1 / -	DD7EE	-4 / -	3	✓ Closing observed
08-10 22:03	80m	+1 / -	EA1AA	- / -14	3	✓ Closing fragment
08-10 22:00	80m	-3 / -	YO4LUP	- / -6	2	✓ Closing fragment
08-10 21:57	80m	-1 / -	LB9ZG	-16 / +6	5	✓ Full exchange observed
08-10 21:52	80m	-1 / -	D2UY	- / -11	3	Partial capture
08-10 21:49	80m	-2 / +5	DK0KG	-10 / +7	6	✓ Full exchange observed
08-10 21:49	80m	-3 / +3	DK7UY	-7 / -	3	Partial capture
08-10 21:48	80m	+7 / -	F5MJN	- / -	2	Partial capture
08-10 21:45	80m	+7 / -	EA3CS/P	- / -11	4	✓ Closing fragment
08-10 21:35	80m	+4 / +1	II3DRC	-16 / -6	4	Partial capture
08-10 21:33	80m	- / +5	TF4M	-10 / -	2	Partial capture
08-10 21:33	80m	+1 / -	CR5VP	-24 / -15	4	✓ Closing observed
08-10 21:30	80m	0 / -	TF4M	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
205945 -16 1451  RI1FJZ OZ3XY JO55 (x4)

40m

UTC    dB Audio  Message
225630 -18 2117  OZ3XY HA7TM JN97
225645  -9 2117  HA7TM OZ3XY +26
225700 -17 2118  OZ3XY HA7TM R+02
225715  -9 2117  HA7TM OZ3XY RRR
225730 -17 2117  OZ3XY HA7TM 73
225745 -11 2117  CX2SA OZ3XY -08 (x2)
230115  +3 2688  CQ OZ3XY JO55
230145  +4 2688  EA3AKY OZ3XY +07 (x2)
004715 -16 2345  SQ100PKP OZ3XY JO55
004730  -7  704  OZ3XY DG4KAI/P +03
004745 -15 2344  OZ7SKB/P OZ3XY R+07
070715  -8 1949  J88IH OZ3XY JO55 (x2)

80m

UTC    dB Audio  Message
234945 -15  985  OZ3XY F5NNN IN94
235015 -15 1316  OZ3XY GM6URC -02
235030  +0 1999  R8FH OZ3XY R-06
235045 -15 1316  OZ3XY GM6URC -02
235100  +0 1999  R8FH OZ3XY 73 (x2)
235245  -9  730  OZ3XY G8OO JO02 (x2)
235330  -2 1999  G8OO OZ3XY +07 (x2)
235415  +7 1999  OZ3XY SP9YGD JO90
235415 -12  730  OZ3XY G8OO 73
235445 +10 1999  OZ3XY SP9YGD R-03
235500  +4 1999  SP9YGD OZ3XY RR73
235515  +6 1999  OZ3XY SP9YGD 73

20m

UTC    dB Audio  Message
201630  +0 1618  OZ3XY CT1BFP IM59 (x7)
190015 -10 1856  OZ3XY 3A2MW RR73
190900  -1 2219  CT1END/P OZ3XY JO55 (x2)
191445 -11 2404  EP2AES OZ3XY JO55
123045  -7 1333  RI1FJL OZ3XY JO55 (x3)
082100 -11  356  OZ3XY RI1FJL RR73

10m

UTC    dB Audio  Message
204145 -17 1690  I5PU OZ3XY 73
204215 -13 1690  YO4NF OZ3XY R+05 (x2)
204345 -11 1690  EA1CQ OZ3XY +07 (x2)
204545 -16 1690  FM4LV OZ3XY JO55 (x5)
205330  -7 1420  OZ3XY RL3K KO91

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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