OZ1KZX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Denmark Most frequent locator attributed to this token: JO57

Receiver-side FT8 activity involving OZ1KZX, decoded by SO8OO in southeastern Poland. 3,583 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 64 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-21.

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 3,583 FT8 messages attributed to OZ1KZX as the transmitting token by decoded message structure across 64 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (49%), followed by 80 m (26%) and 20 m (11%). Most decodes (56%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (77%); the estimated median was -3 dB.

Overview

3,583

Messages attributed

UTC dates decoded

303

Active 15-min windows

-3 dB

Estimated median S/N

Bands

160m · 178 80m · 925 60m · 269 40m · 1,743 20m · 405 10m · 63

First attributed message: 2026-06-07
Last attributed message: 2026-09-21 02:30 UTC

Observed FT8 message patterns

Attributed sample: 3,583 messages
Active dates: 64 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -13 to +8.8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 183, moderate (-15 to -9 dB) 625, strong (≥ -8 dB) 2,775.

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 OZ1KZX in decoded directed-looking exchanges:

F1PBZ · France ×3 F1HSY · France ×3 9J2FI · Zambia ×3 CE2SV · Chile ×2 EC6DX · Balearic Islands ×2 OE3DXA · Austria ×2 DK5WL · Fed. Rep. of Germany ×2 G8OO · England ×2 LY1SR · Lithuania ×2 M0IOY · England ×2 OH3DJP · Finland ×2 OH6B · Finland ×2

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 OZ1KZX

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: JO57 · 2,113 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,098 km (approx.)
Last such locator decoded: 2026-09-21 02:29 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	OZ1KZX S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-21 01:58	40m	- / -7	HZ1TT	-5 / -	4	✓ Closing fragment
09-21 01:56	40m	- / -	N3AQ	-6 / -	2	✓ Closing fragment
09-21 01:44	40m	- / -11	WB2RRF	-10 / -	2	Partial capture
09-20 06:29	40m	-9 / -	GJ0KYZ	-2 / -1	3	✓ Closing observed
09-20 06:26	40m	-5 / -15	YO8RCA	+7 / -8	4	✓ Full exchange observed
09-20 06:24	40m	-1 / +3	DK3MM	-8 / -6	5	✓ Full exchange observed
09-20 06:20	40m	- / +7	SP3MIP	+10 / -	2	✓ Closing fragment
09-20 06:16	40m	-2 / -	PD1PET	- / -15	2	✓ Closing fragment
09-20 06:15	40m	-4 / -	G3MOD	- / -12	2	✓ Closing fragment
09-20 06:11	40m	-3 / -	J88IH	- / -17	5	✓ Closing fragment
09-20 06:09	40m	-5 / -23	SA4AGM	-3 / -16	8	Partial capture
09-20 06:06	40m	- / -	F1IQH	-10 / -	2	Partial capture
09-20 06:04	40m	+2 / -	ZL2NU	- / -13	3	Partial capture
09-18 04:26	160m	- / -2	OE3DXA	-5 / -	6	✓ Closing fragment
09-18 04:24	160m	-6 / -	G8OO	- / -8	2	✓ Closing fragment
09-18 03:46	160m	+6 / -	V26OC	- / -	2	Partial capture
09-18 03:45	160m	+6 / -	OH3DJP	- / +6	2	✓ Closing fragment
09-18 03:37	160m	0 / -	V26OC	- / -	4	Partial capture
09-18 03:32	80m	+12 / -3	EC6DX	-11 / -9	6	✓ Full exchange observed
09-17 22:55	80m	+17 / -6	DO1IJB	-1 / -3	5	✓ Full exchange observed
09-17 22:53	80m	- / -	DO5PY	-6 / -	4	Partial capture
09-17 22:50	80m	- / -4	F1PBZ	+4 / -	8	Partial capture
09-17 22:48	80m	+10 / -	EX7DY	- / -	2	Partial capture
09-17 22:42	80m	+6 / +9	SM7HZK	+8 / -1	4	✓ Full exchange observed
09-17 22:40	80m	+6 / -	VO1BE	- / -11	2	✓ Closing fragment
09-17 22:38	80m	- / -	DO5PY	-7 / -	3	Partial capture
09-17 22:37	80m	+3 / -	RA6OY	+5 / -2	3	✓ Closing observed
09-17 22:36	80m	+5 / -21	DL6RS	+4 / -9	5	✓ Full exchange observed
09-17 22:34	80m	+4 / -4	PA3DNR	-12 / -4	5	✓ Full exchange observed
09-17 22:32	80m	0 / -9	RL3T	-8 / -9	5	✓ Full exchange observed
09-17 22:30	80m	+2 / -14	UA6JQ	+6 / -7	4	✓ Full exchange observed
09-17 22:29	80m	- / -	DO5PY	-6 / -	2	Partial capture
09-17 22:25	80m	+3 / +1	OK1SI	+19 / +1	6	✓ Full exchange observed
09-17 22:24	80m	0 / -8	DO8JB	-12 / +2	5	✓ Full exchange observed
09-17 22:22	80m	-2 / -18	OH4LRP	+7 / -1	5	✓ Full exchange observed
09-17 22:20	80m	- / -	OE7BRF	-6 / -	2	Partial capture
09-17 22:20	80m	-4 / -13	R4WR	-1 / -11	5	✓ Full exchange observed
09-17 22:19	80m	-2 / +5	TF4M	-7 / -	4	✓ Closing observed
09-17 22:15	160m	+5 / -24	UR9QQ	-4 / +6	9	Partial capture
09-17 22:13	160m	+3 / -	SV9MBH	-18 / -18	4	✓ Closing observed
09-17 22:00	160m	-6 / -15	UX7QV	+13 / -8	5	✓ Full exchange observed
09-17 21:57	160m	-10 / -	OH6B	-11 / -13	3	✓ Closing observed
09-17 21:23	160m	-2 / -	RI1FJZ	- / -16	4	✓ Closing fragment
09-17 21:06	160m	-6 / -	RI1FJZ	- / -	3	Partial capture
09-17 21:05	160m	-9 / -	UX5XK	-1 / -	2	✓ Closing observed
09-17 20:57	160m	-12 / -	HB9PLH	- / -9	2	✓ Closing fragment
09-17 20:27	80m	+5 / -1	MI0AIH	-16 / 0	4	✓ Full exchange observed
09-17 20:26	80m	+3 / -	EX7DY	- / -	4	Partial capture
09-17 06:10	40m	-6 / -	J88IH	- / -	3	Partial capture
09-17 06:02	40m	-9 / -	ZL3GAV	- / -16	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
063000  -1  363  CQ OZ1KZX JO57 (x3)
014415 -12  369  OZ1KZX WB2RRF FM29 (x2)
014715 -14  368  OZ1KZX TA2EE KM69
015615  -8  369  OZ1KZX N3AQ FN11 (x2)
015845  -3 1729  OZ1KZX HZ1TT -07 (x4)
022315 -17  931  OZ1KZX TG9SO -12
022900 -14  340  CQ OZ1KZX JO57
023045 -17  343  UA3PAB OZ1KZX +03

160m

UTC    dB Audio  Message
042430  -8  431  G8OO OZ1KZX -08 (x2)
042615  -9  431  CQ OZ1KZX JO57                        a1
042630  -5  431  OZ1KZX OE3DXA JN88 (x6)
042945  -6  430  CQ OZ1KZX JO57 (x6)

80m

UTC    dB Audio  Message
225415 +14  504  CQ OZ1KZX JO57
225430 -11  504  OZ1KZX DO5PY JN49
225445 +17  504  CQ OZ1KZX JO57 (x2)
225530  +0 1618  OZ1KZX DO1IJB JN48
225545 +20  504  DO1IJB OZ1KZX -03
225600  +3 1618  OZ1KZX DO1IJB R-06
225615 +14  505  DO1IJB OZ1KZX RR73
225630  -6 1618  OZ1KZX DO1IJB 73
033245  +4  434  EC6DX OZ1KZX JO57 (x2)
033330 -19 1255  OZ1KZX EC6DX -03
033345 +16  434  EC6DX OZ1KZX R-09
033400  -3 1255  OZ1KZX EC6DX RR73
033415 +11  434  EC6DX OZ1KZX 73

60m

UTC    dB Audio  Message
212415  -1  356  OZ1KZX F1IQH JN27 (x2)
055830  -2  737  ZL4OL OZ1KZX JO57
055845  -5 1834  OZ1KZX DL8RBL -06
055900  -6  737  ZL4OL OZ1KZX R-18
060030  -4  737  ZL2CC OZ1KZX JO57 (x4)
012500 -19 1896  OZ1KZX IS0BOY -02
012700 -14 1217  OZ1KZX EA1FKI +02 (x2)
013100  -7 1332  OZ1KZX F5RMK +16 (x2)
013330  +7  255  OZ1KZX PA4PA RR73

20m

UTC    dB Audio  Message
042915  -9  330  CQ OZ1KZX JO57 (x3)
043045 -11  330  UB4CJS OZ1KZX R-18 (x3)
043215  -8  330  CQ OZ1KZX JO57
043400  -5  331  OZ1KZX 7Z1DM -22
043415 -10  330  7Z1DM OZ1KZX R-25
043430  -7  330  OZ1KZX 7Z1DM -22
043615 -13  330  7Z1DM OZ1KZX R-25
043630  +4  331  OZ1KZX 7Z1DM RR73
043645  -9  330  7Z1DM OZ1KZX 73
050915  -8 2255  OZ1KZX ZL2BH -14 (x2)

10m

UTC    dB Audio  Message
133300  +1 2909  CQ OZ1KZX JO57 (x4)
133600  -7 2909  YO2LFP OZ1KZX RR73
133630  -6 2909  CQ OZ1KZX JO57
095045 -17 1229  OZ1KZX IU8WPZ R-04
094530 -21 1710  OZ1KZX DN9CHV JO31
094530  +0 2806  OZ1KZX DD5GG JN39 (x2)
094630 -24 1710  OZ1KZX DN9CHV JO31
094930  +1 2397  OZ1KZX DN9OPA JN38 (x3)
095800  -6 2803  OZ1KZX DF2JK JO30

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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