ON4DKS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Belgium Most frequent locator attributed to this token: JO10

Receiver-side FT8 activity involving ON4DKS, decoded by SO8OO in southeastern Poland. 27 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-02 and 2026-08-28.

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 27 FT8 messages attributed to ON4DKS as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -3 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-3 dB

Estimated median S/N

Bands

20m · 27

First attributed message: 2026-07-02
Last attributed message: 2026-08-28 09:34 UTC

Observed FT8 message patterns

Attributed sample: 27 messages
Active dates: 2 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -17 to +2 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 18.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with ON4DKS in decoded directed-looking exchanges:

A41ZZ · Oman OE8RPK · Austria R5AV · European Russia RI1FJL · Franz Josef Land DK2M · Fed. Rep. of Germany DL1HDL · Fed. Rep. of Germany IW0RQJ · Italy OE6OCG · Austria S58MU · Slovenia SQ5TA · Poland DL1UDO · Fed. Rep. of Germany DM2BPG · Fed. Rep. of Germany

Most frequent locator attributed to ON4DKS

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: JO10 · 16 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,335 km (approx.)
Last such locator decoded: 2026-08-28 09:34 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	ON4DKS S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-16 06:35	40m	- / +3	DK3HJ	-8 / -	7	Partial capture
09-16 06:17	40m	- / -14	OE6OCG	+4 / -	3	✓ Closing fragment
09-16 06:13	40m	- / -15	SP5EXA	-12 / -	5	Partial capture
08-30 07:47	20m	- / -3	F1PSX	-3 / -	7	Partial capture
08-30 07:41	40m	- / -24	S58MU	+6 / -	2	✓ Closing fragment
08-30 07:39	40m	- / -6	DK2M	+4 / -	2	✓ Closing fragment
08-30 07:37	40m	- / -15	DL1HDL	-5 / -	3	✓ Closing fragment
08-30 07:25	40m	- / -8	IW0RQJ	-4 / -	3	✓ Closing fragment
08-30 07:23	40m	- / -15	OK1HEH	+8 / -	3	Partial capture
08-30 07:20	40m	- / -	DL6ZOG	-13 / -	3	Partial capture
08-30 07:18	40m	- / -17	SQ5TA	0 / -	4	✓ Closing fragment
08-30 07:08	40m	- / -19	LB4PI	-14 / -	2	Partial capture
08-30 07:07	40m	- / -12	DF9HT/P	-7 / -	6	Partial capture
08-30 06:50	40m	- / -	F5RRS	-9 / -	4	Partial capture
08-30 06:49	40m	- / -11	F1PBZ	-4 / -	3	Partial capture
08-30 06:21	80m	- / -	DM2BPG	-3 / -	2	✓ Closing fragment
08-30 06:05	80m	- / -	DL2HUC	-8 / -	3	Partial capture
08-30 06:05	80m	- / -11	DL1UDO	-11 / -	4	✓ Closing fragment
08-30 06:01	80m	- / -10	DO5HOK	-12 / -	3	✓ Closing fragment
08-30 05:54	80m	- / -10	DM9EE	-7 / -	2	✓ Closing fragment
08-30 05:49	80m	- / -19	DO3VE	+4 / -	2	✓ Closing fragment
08-30 05:41	80m	- / -15	DO1OAS	-15 / -	2	✓ Closing fragment
08-30 05:35	80m	- / -16	S53X	-3 / -	3	✓ Closing fragment
08-30 05:33	80m	- / -17	DO1OAS	-12 / -	4	Partial capture
08-30 05:33	80m	- / -	G0BLB	-22 / -	2	Partial capture
08-28 09:32	20m	-2 / -	F5PBG	- / -4	2	Partial capture
08-28 09:30	20m	-8 / -17	RZ6AKF	+12 / -16	5	Partial capture
08-28 09:25	20m	-1 / -	RI1FJL	- / -14	8	✓ Closing fragment
08-28 09:24	20m	+6 / -	OE8RPK	- / -15	2	✓ Closing fragment
08-28 09:22	20m	-3 / -	RI1FJL	- / -	3	Partial capture
07-20 07:28	20m	- / -	F4HSB	-23 / -	3	Partial capture
07-14 05:51	20m	- / -	DL9KM	-12 / -	4	Partial capture
07-06 03:38	80m	- / -16	DK7ZT	+8 / -	2	Partial capture
07-03 12:36	10m	- / -14	A41ZZ	-16 / -	2	✓ Closing fragment
07-03 06:17	20m	- / -	UR4QWW	-18 / -	5	Partial capture
07-03 06:05	20m	- / -	F5IXN	-20 / -	2	Partial capture
07-02 17:59	20m	-17 / -	IT9SBE	- / -	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
061330 -12  788  ON4DKS SP5EXA R-15
061330 -13 1366  ON4DKS II8IHBC -06
061400 -14  789  ON4DKS SP5EXA R-15 (x3)
061730  +4  788  ON4DKS OE6OCG JN77 (x3)
063530  -2  788  ON4DKS DK3HJ JN57 (x7)

20m

UTC    dB Audio  Message
093100 +14  821  ON4DKS RZ6AKF -17 (x2)
093145  -6  821  RZ6AKF ON4DKS R-16
093215  +2  821  F5PBG ON4DKS -04 (x2)
093345  -9  821  RZ6AKF ON4DKS R-17
093415  -2  821  CQ ON4DKS JO10
093600 -12  822  ON4DKS F5PBG IN78
074730  +1 1075  ON4DKS F1PSX R-03 (x7)

80m

UTC    dB Audio  Message
060245 -14  809  ON4DKS DO5HOK R-10 (x2)
060515  -9 1490  ON4DKS DL1UDO JO31
060545 -10 2310  ON4DKS DL2HUC JO51
060545  -8 1490  ON4DKS DL1UDO JO31
060615  -7 2310  ON4DKS DL2HUC JO51
060615 -12 1490  ON4DKS DL1UDO R-11
060645  -8 2310  ON4DKS DL2HUC JO51
060645 -15 1490  ON4DKS DL1UDO 73
061745 -11  733  ON4DKS DO2NM -07
062015 -23 1544  ON4DKS DO9MH RR73
062130  -8 1310  ON4DKS DM2BPG +15 (x2)
062330 -14 1344  ON4DKS DO2BBC RR73
062645 -21 1989  ON4DKS DK6AH JN48

10m

UTC    dB Audio  Message
135345 -16 1488  ON4DKS F4PCM R+03
123615 -16  928  ON4DKS A41ZZ -14 (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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