OZ4SOP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Denmark Most frequent locator attributed to this token: JO75

Receiver-side FT8 activity involving OZ4SOP, decoded by SO8OO in southeastern Poland. 255 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-07-06 and 2026-07-25.

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 255 FT8 messages attributed to OZ4SOP as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (62%), followed by 80 m (38%). Most decodes (96%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (64%); the estimated median was -6 dB.

Overview

255

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 96 40m · 159

First attributed message: 2026-07-06
Last attributed message: 2026-07-25 18:11 UTC

Observed FT8 message patterns

Attributed sample: 255 messages
Active dates: 6 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -14 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 18, moderate (-15 to -9 dB) 75, strong (≥ -8 dB) 162.

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 OZ4SOP in decoded directed-looking exchanges:

F5PBG · France ×2 F4FSY · France 2I0EVH · Northern Ireland TK5K · Corsica 5P1KZX · Denmark 8S7DL · Sweden 9A2L · Croatia DB5HA · Fed. Rep. of Germany DB5OET · Fed. Rep. of Germany DD3JN · Fed. Rep. of Germany DG0JW · Fed. Rep. of Germany DG6ITP · 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 OZ4SOP

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: JO75 · 99 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 769 km (approx.)
Last such locator decoded: 2026-07-25 18:08 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	OZ4SOP S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-26 13:26	20m	- / -6	DH3MFW	-10 / -	2	Partial capture
07-25 18:10	80m	+6 / +1	DO1FZL	-14 / 0	6	✓ Full exchange observed
07-25 18:05	80m	- / -	HF5A	+19 / -	2	Partial capture
07-25 18:04	80m	+10 / -	DO1DX	-9 / -13	3	✓ Closing observed
07-25 18:04	80m	+8 / -	DL0SOP	-12 / -	8	✓ Full exchange observed
07-25 18:02	40m	-6 / -	ON8BZ	- / -	2	Partial capture
07-25 18:00	40m	-2 / -	LY7TI	- / -	4	Partial capture
07-25 17:57	40m	-1 / -	LA9FSA	- / -	2	Partial capture
07-25 17:56	40m	-2 / -5	SQ9MEZ	0 / +6	5	✓ Full exchange observed
07-25 17:53	40m	-8 / +8	SP6TID	-5 / +4	4	✓ Full exchange observed
07-25 17:50	40m	-8 / -	LA2JKA	- / -6	2	Partial capture
07-25 17:48	40m	-4 / -	EA1IOK	- / -10	3	✓ Closing fragment
07-25 17:43	40m	-6 / -	DH1BUZ/P	- / -	3	Partial capture
07-25 17:40	40m	-9 / -	OK8UQ	+4 / -	3	✓ Closing observed
07-25 17:36	40m	-7 / -	SV2CWV	- / -5	2	Partial capture
07-25 14:53	40m	-19 / -	DH0DX	- / -	2	Partial capture
07-25 14:05	40m	- / -4	DL2RBJ	-18 / -	2	Partial capture
07-24 18:09	40m	- / -18	UA4FEN	-16 / -	2	Partial capture
07-24 18:08	40m	- / -5	9A2L	-14 / -	2	✓ Closing fragment
07-24 18:01	40m	- / +2	IK2VFQ	-11 / -	2	Partial capture
07-24 17:56	40m	-10 / -	GM3AND	- / -12	5	✓ Closing fragment
07-24 17:53	40m	-16 / -	SN5Z	-13 / +10	3	✓ Closing observed
07-24 17:51	40m	-12 / +7	DG0JW	-8 / +10	5	✓ Full exchange observed
07-24 17:50	40m	-10 / -	F5PBG	- / -	2	✓ Closing fragment
07-24 17:48	40m	-13 / -	DB5OET	- / -8	2	✓ Closing fragment
07-24 17:40	40m	- / -19	RX9WN	-18 / -	2	Partial capture
07-24 17:28	40m	-10 / -8	DK2CC	-17 / -12	5	✓ Full exchange observed
07-24 17:21	40m	-14 / +2	HG8LXL	-8 / -	5	✓ Closing observed
07-24 17:20	40m	-5 / -	M0MCL	- / -5	3	✓ Closing fragment
07-24 17:18	40m	-6 / -	DD3JN	-16 / -	4	✓ Closing observed
07-24 17:16	40m	-10 / -	DL2EEO	- / -4	2	✓ Closing fragment
07-24 17:12	40m	-7 / -	MW9IQN	- / -25	4	Partial capture
07-23 13:17	20m	- / -8	TK5K	-8 / -	2	✓ Closing fragment
07-21 20:11	40m	-9 / -	8S7DL	-16 / -	4	✓ Closing observed
07-21 20:10	80m	- / -15	DA6DE	-7 / -	5	Partial capture
07-21 20:04	80m	-1 / +2	DB3OI	+3 / -	5	✓ Full exchange observed
07-21 20:01	80m	0 / -	OH6FSO	- / -15	3	✓ Closing fragment
07-21 20:00	80m	+1 / -	IQ0AK	- / -	3	Partial capture
07-21 19:59	80m	- / -	SP9UPH	+9 / -	2	Partial capture
07-21 19:56	80m	+3 / +3	DM2HEY	-3 / -	5	✓ Full exchange observed
07-21 19:56	80m	+3 / -	DL1DQF	+3 / +9	6	✓ Closing observed
07-21 19:55	80m	+6 / -15	HA5LB	0 / -12	6	✓ Full exchange observed
07-21 19:54	80m	+4 / -	IQ0AK	- / -	2	Partial capture
07-21 19:52	80m	+2 / -	8S7DL	- / -	4	Partial capture
07-21 19:47	80m	+2 / +4	DL5JMN	+1 / +2	11	✓ Full exchange observed
07-21 19:47	80m	+3 / -	DL8SXB	-24 / -19	4	✓ Closing observed
07-21 19:47	80m	- / -	R2PT	-4 / -	3	Partial capture
07-21 19:46	80m	0 / -6	DK4RH	0 / -1	5	✓ Full exchange observed
07-21 19:43	80m	+2 / -	SJ7SOP	+4 / +8	5	✓ Full exchange observed
07-21 19:41	80m	0 / +1	DL6CKR	-14 / +9	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
135115 -23 1366  OZ4SOP F5IXN JN23 (x3)
112915 -15 1760  OZ4SOP 2I0EVH -07 (x2)
131600 -13 1874  OZ4SOP EC3A R-03
131730  -5  532  OZ4SOP TK5K -08 (x2)
132145 -24 1732  OZ4SOP F4HSB JN37
132645  -8  839  OZ4SOP DH3MFW -06 (x2)

10m

UTC    dB Audio  Message
121630 -20 1565  OZ4SOP F6FDY JN33
121630 -13 1808  OZ4SOP F4FSY -16 (x2)
120430 -15 2006  OZ4SOP LZ2RR -09

80m

UTC    dB Audio  Message
180545 +21  420  OZ4SOP HF5A JO92
180545  -6 1844  OZ4SOP DL0SOP +19
180615 +17  420  OZ4SOP HF5A JO92
180615 -18 1843  OZ4SOP DL0SOP +19
180630 +11  541  DL0SOP OZ4SOP R+13 (x4)
180915  +5  540  <...> OZ4SOP R-15
181015  +6  541  DO1FZL OZ4SOP +00 (x2)
181100 -13 2234  OZ4SOP DO1FZL R+01
181115  +6  541  DO1FZL OZ4SOP RR73
181130 -16 2234  OZ4SOP DO1FZL 73
181145  +6  541  DO1FZL OZ4SOP 73

40m

UTC    dB Audio  Message
175345  -7  574  SP6TID OZ4SOP R+04 (x2)
175600  +0  573  SQ9MEZ OZ4SOP JO75
175615  +1 1122  OZ4SOP SQ9MEZ -05
175630  -5  573  SQ9MEZ OZ4SOP R+06
175645  +0 1121  OZ4SOP SQ9MEZ RRR
175700  -1  573  SQ9MEZ OZ4SOP 73
175745  -5  573  LA9FSA OZ4SOP JO75 (x2)
180000  -4  573  LY7TI OZ4SOP JO75 (x4)
180200  -5  573  ON8BZ OZ4SOP JO75 (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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