OZ/KD0NDU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Denmark

Receiver-side FT8 activity involving OZ/KD0NDU, decoded by SO8OO in southeastern Poland. 4,734 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 2026-08-18 and 2026-09-12.

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 4,734 FT8 messages attributed to OZ/KD0NDU as the transmitting token by decoded message structure across 24 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (42%), followed by 40 m (42%) and 20 m (10%). Most decodes (57%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -6 dB.

Overview

4,734

Messages attributed

UTC dates decoded

402

Active 15-min windows

-6 dB

Estimated median S/N

Bands

160m · 188 80m · 1,988 40m · 1,975 20m · 487 10m · 96

First attributed message: 2026-08-18
Last attributed message: 2026-09-12 15:20 UTC

Observed FT8 message patterns

Attributed sample: 4,734 messages
Active dates: 24 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -16 to +3.3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 512, moderate (-15 to -9 dB) 1,311, strong (≥ -8 dB) 2,911.

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 OZ/KD0NDU in decoded directed-looking exchanges:

SX48JM · Greece ×41 Z335MK · North Macedonia ×7 LY790A · Lithuania ×6 LZ67PP · Bulgaria ×6 AO77R · Spain ×5 8B81JG · Indonesia ×4 YL35ZS · Latvia ×4 HF780C · Poland ×2 HF50HK · Poland ×2 AO90A · Ceuta & Melilla EA8DEG · Canary Islands 8B81JB · Indonesia

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.

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	OZ/KD0NDU S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-12 21:20	40m	- / -	F4HAB	-18 / -	2	Partial capture
09-12 18:39	40m	- / +2	DK2HM	-5 / -	3	Partial capture
09-12 18:16	40m	- / -5	PD1SCO	-6 / -	2	Partial capture
09-12 17:54	40m	- / -14	OM2DX	+7 / -	2	Partial capture
09-12 15:19	40m	-2 / -	G6LTT	- / -3	2	Partial capture
09-12 15:19	40m	+2 / -	OZ27T	-4 / -	8	✓ Closing observed
09-12 15:18	40m	-4 / -2	DL7ACA	+4 / -2	3	Partial capture
09-12 07:13	40m	- / -9	YO5OSF	+4 / -	2	Partial capture
09-12 06:09	40m	- / -	DL6UM	+2 / -	10	Partial capture
09-12 05:25	40m	- / -9	IK5PWQ	+4 / -	3	Partial capture
09-12 04:49	40m	-2 / -5	4X5MZ	-6 / -	2	Partial capture
09-12 04:46	40m	- / -	SX48JM	-4 / -	2	✓ Closing fragment
09-12 04:42	40m	-8 / -	WA4TED	- / -18	2	Partial capture
09-12 04:38	40m	-4 / -	DC9TS	-6 / -20	4	Partial capture
09-12 04:37	40m	-5 / -	KD9COP	- / -19	2	Partial capture
09-12 04:36	40m	-6 / -	OH6IH	- / -16	2	Partial capture
09-12 00:05	40m	- / -7	M6WRB	-1 / -	10	Partial capture
09-11 22:01	80m	- / -	DL2KDO	-19 / -	3	Partial capture
09-11 21:59	80m	-7 / -	<...>	+7 / -	2	✓ Closing fragment
09-11 21:58	80m	+1 / -14	RA3ZH	+6 / -8	3	Partial capture
09-11 21:56	80m	+8 / -	<...>	-4 / -	2	✓ Closing fragment
09-11 21:53	80m	+8 / -	DL6UXL	-23 / -5	3	Partial capture
09-11 21:53	80m	- / -	SQ3WMZ	+2 / -	2	Partial capture
09-11 21:49	80m	+6 / -	<...>	-12 / -	6	✓ Closing fragment
09-11 21:48	80m	0 / -	CT2GQA	-20 / -16	3	Partial capture
09-11 21:46	80m	+4 / -	<...>	+13 / -	2	✓ Closing fragment
09-11 21:45	40m	- / -20	HZ1TT	-13 / -	2	✓ Closing fragment
09-11 21:45	80m	-5 / 0	IV3JRY	+6 / -4	3	Partial capture
09-11 21:26	40m	-13 / -	RA6AR	-5 / -13	2	Partial capture
09-11 21:24	40m	-12 / -	<...>	-7 / -	2	✓ Closing fragment
09-11 21:12	40m	-6 / -	<...>	+12 / -	2	✓ Closing fragment
09-11 21:10	40m	- / -	HB9CNU	+11 / -	3	Partial capture
09-11 20:52	160m	- / -	R2PT	-18 / -	2	Partial capture
09-11 20:06	160m	- / +4	DG5MLA	-11 / -	7	Partial capture
09-11 20:02	160m	- / 0	R3PA	-8 / -	2	Partial capture
09-11 19:56	160m	- / -4	ES8JX	-14 / -	2	Partial capture
09-11 19:45	80m	- / -	DO9BAU	+1 / -	2	Partial capture
09-11 19:21	80m	- / -	DN4TG	+4 / -	2	Partial capture
09-11 19:18	160m	- / -12	RN1CW	-8 / -	2	Partial capture
09-11 18:28	80m	- / -	DO9BAU	-2 / -	5	Partial capture
09-11 18:24	80m	- / -	DC8SM	-10 / -	5	Partial capture
09-11 18:07	80m	- / 0	DG5MLA	+4 / -	2	Partial capture
09-11 16:30	40m	- / -	DG0JK	+7 / -	2	Partial capture
09-11 16:27	40m	+2 / -	<...>	- / -	2	✓ Closing fragment
09-11 14:39	40m	- / +4	SP9MRP	+8 / -	2	Partial capture
09-11 12:40	40m	- / -	SP5EJG	-18 / -	2	Partial capture
09-11 10:14	40m	-14 / -	<...>	- / -	2	Partial capture
09-11 10:10	40m	-12 / -	<...>	- / -	2	✓ Closing fragment
09-11 10:09	40m	-6 / -	ON2SLC	- / -15	2	Partial capture
09-11 10:06	40m	- / +2	DL3FSC	-2 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
152045  -3  759  OZ/KD0NDU OZ27T RRR (x6)
175415  +7  764  OZ/KD0NDU OM2DX JN88 (x2)
181615  -7  783  OZ/KD0NDU PD1SCO JO22 (x2)
183945  -1 1725  OZ/KD0NDU DK2HM JN58 (x3)
212030 -21  789  OZ/KD0NDU F4HAB JN03 (x2)

80m

UTC    dB Audio  Message
215815  +5  651  CQ OZ/KD0NDU
215830  +8  650  OZ/KD0NDU RA3ZH KO81
215845  +1  651  RA3ZH OZ/KD0NDU -08
215900  +5  651  OZ/KD0NDU RA3ZH R-14
215915  -7  651  <...> OZ/KD0NDU RRR
215930  +7  651  OZ/KD0NDU <...> 73
220100 -22  650  OZ/KD0NDU DL2KDO JO31 (x2)
220200  +0 1235  OZ/KD0NDU <...> RR73
220200 -17  650  <OZ/KD0NDU> DL2KDO JO31
220200  +0  796  CQ OZ/KD0NDU (x4)
053715  +1 1238  OZ7FOC OZ/KD0NDU +09

160m

UTC    dB Audio  Message
191845  -5 1745  OZ/KD0NDU RN1CW R-12
193215 -24 1763  OZ/KD0NDU SP1RKT JO84
195645 -12 1124  OZ/KD0NDU ES8JX R-04 (x2)
200215  -6 1752  OZ/KD0NDU R3PA KO93 (x2)
200615  -5 1103  OZ/KD0NDU DG5MLA JN58 (x7)
205245 -16 1115  OZ/KD0NDU R2PT KO84 (x2)

20m

UTC    dB Audio  Message
173500 +14  981  OZ/KD0NDU F4EGM JN29 (x13)
180130  -3  975  OZ/KD0NDU G6MTI IO81 (x2)

10m

UTC    dB Audio  Message
171515 -10  877  CQ OZ/KD0NDU
171615 -14  877  <...> OZ/KD0NDU RRR
171800  -3 1794  OZ/KD0NDU <...> 73
173400 -12  879  OZ/KD0NDU M0BEW -01
173630 -12 1054  OZ/KD0NDU <...> 73
133600  -7  768  CQ OZ/KD0NDU (x2)
133700  -6  774  F4FSY OZ/KD0NDU R-11
133715 -17 1385  OZ/KD0NDU <...> RR73
133730  -6  777  <...> OZ/KD0NDU 73
133800  -6  778  CQ OZ/KD0NDU
133830 -12  779  F4LEM OZ/KD0NDU +00
133930 -10  780  CQ OZ/KD0NDU
134015 -13 1389  OZ/KD0NDU F4BLY R+14
105945  +4  465  OZ/KD0NDU <...> 73

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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