DK2OJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO41

Receiver-side FT8 activity involving DK2OJ, decoded by SO8OO in southeastern Poland. 103 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-16 and 2026-07-29.

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 103 FT8 messages attributed to DK2OJ as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (48%), followed by 10 m (33%) and 80 m (10%). Most decodes (74%) fell within the six-hour window 08:00-14:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

103

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

80m · 10 40m · 10 20m · 49 10m · 34

First attributed message: 2026-06-16
Last attributed message: 2026-07-29 13:03 UTC

Observed FT8 message patterns

Attributed sample: 103 messages
Active dates: 10 UTC dates
Estimated median S/N: -16 dB
Estimated 10th-90th percentile: -23 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 56, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 24.

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 DK2OJ in decoded directed-looking exchanges:

D2UY · Angola IK4LZH · Italy RA4FUT · European Russia SP2EWQ · Poland UA6HGM · European Russia US1MM · Ukraine UT8SQ · Ukraine EW8DG · Belarus F1PPH · France F5IXN · France F5RRS · France GJ0KYZ · Jersey

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 DK2OJ

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: JO41 · 46 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 916 km (approx.)
Last such locator decoded: 2026-07-29 13:03 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	DK2OJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-19 13:41	10m	- / -1	IK4LZH	-8 / -	2	✓ Closing fragment
08-19 13:36	10m	- / -	IK4LZH	-10 / -	2	Partial capture
07-27 13:33	20m	- / -	OE9GWV	-8 / -	2	Partial capture
07-27 13:27	20m	-20 / -	F5RRS	-14 / +9	8	✓ Closing observed
07-27 13:20	20m	-15 / -	F1PPH	- / -4	5	✓ Closing fragment
07-27 12:56	20m	-17 / -15	UT5ZC	-13 / +9	6	✓ Full exchange observed
07-27 12:53	20m	-8 / -8	GJ0KYZ	-3 / -2	4	✓ Full exchange observed
07-27 12:48	20m	- / -10	F5IXN	-2 / -	3	✓ Closing fragment
07-27 12:43	20m	- / -24	RA3Y	-9 / -	2	✓ Closing fragment
07-09 05:28	80m	-22 / -	DD6MH	- / -	2	Partial capture
07-09 05:26	80m	-16 / -14	DL1UDO	-20 / +6	4	✓ Full exchange observed
07-09 05:24	80m	-20 / 0	DO5OT	+3 / -9	3	Partial capture
07-09 05:22	80m	-18 / -5	OE8DDX	+4 / -14	5	✓ Full exchange observed
07-07 08:38	20m	-18 / -	G8IXM	- / -9	2	Partial capture
07-07 08:33	20m	-24 / -	UT1KWA	- / +6	2	✓ Closing fragment
07-07 08:31	20m	-18 / -1	HA1BF	+7 / -	4	✓ Closing observed
07-04 07:29	40m	- / -17	DL6RDE	-23 / -	3	Partial capture
07-03 16:50	40m	- / -2	DM5JBN	-17 / -	3	✓ Closing fragment
07-03 16:37	40m	-22 / -7	OE3KJO	-21 / -	2	Partial capture
06-29 14:02	10m	-18 / -	A61DI	- / -	2	Partial capture
06-29 13:56	10m	-18 / -	R6OF	- / -	6	Partial capture
06-29 13:53	10m	-16 / -	R2FAQ	- / -3	3	Partial capture
06-26 11:18	10m	-4 / -	UA6HGM	- / -4	3	✓ Closing fragment
06-26 11:16	10m	-5 / -	SP2EWQ	- / -	4	✓ Closing fragment
06-26 11:14	10m	-2 / -	DL9KM	- / -	2	Partial capture
06-26 11:11	10m	-3 / -	RA4FUT	-18 / -2	4	✓ Closing observed
06-26 11:08	10m	-6 / -	UT8SQ	- / -	2	✓ Closing fragment
06-26 11:06	10m	-8 / -	OE1TRB	- / -	2	Partial capture
06-25 06:55	20m	-5 / +2	YT3PL	-19 / -	4	✓ Closing observed
06-25 06:41	20m	- / -21	YU5DR	-16 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
135600 -16 1520  R6OF DK2OJ JO41 (x6)
140200 -19 1520  A61DI DK2OJ JO41 (x2)
140415 -20 1520  MW7TTA DK2OJ R-04
144300 -18 2292  DK2OJ D2UY RR73
135745 -20 1376  DK2OJ EB3JT JN01
133645  -9  491  DK2OJ IK4LZH JN54 (x4)

20m

UTC    dB Audio  Message
132430 -22 2157  F1PPH DK2OJ RR73
132715 -12 1942  DK2OJ F5RRS JN36
132800 -16 1570  F5RRS DK2OJ +09
132815 -18 1942  DK2OJ F5RRS JN36 (x2)
132900 -22 1571  F5RRS DK2OJ +06
132915 -15 1942  DK2OJ F5RRS JN36
132930 -16 1570  F5RRS DK2OJ -03 (x2)
133300  -7  613  SQ5WBW DK2OJ RR73
133315  -7 2584  DK2OJ OE9GWV JN47 (x2)
130245 -20 1038  UA1AOF DK2OJ RR73
130315 -14 1038  CQ DK2OJ JO41                         a1 (x2)

80m

UTC    dB Audio  Message
052215 -17 2004  OE8DDX DK2OJ JO41
052230  +2  502  DK2OJ OE8DDX -05
052245 -19 2003  OE8DDX DK2OJ R-14
052300  +7  502  DK2OJ OE8DDX RRR
052315 -17 2004  OE8DDX DK2OJ 73
052415 -15 2003  DO5OT DK2OJ JO41
052430  +3  568  DK2OJ DO5OT +00
052445 -24 2004  DO5OT DK2OJ R-09
052630 -12 2004  DL1UDO DK2OJ JO41
052645 -20 1500  DK2OJ DL1UDO -14
052700 -13 2004  DL1UDO DK2OJ R+06 (x2)
052800 -24 2004  DD6MH DK2OJ JO41 (x2)

40m

UTC    dB Audio  Message
164930 -19 1837  CQ DK2OJ JO41
165030 -24 1837  DJ0JG DK2OJ RR73
165045 -18 1439  DK2OJ DM5JBN JO60 (x3)
165630 -18 1837  DC2CB DK2OJ +03
165930 -24 1837  CQ DK2OJ JO41
170530 -24 1838  PH7KLM DK2OJ RR73
170800 -24 1838  CQ DK2OJ JO41                         a1
170900 -22 1837  PD0HLA DK2OJ 73
170930 -21 1838  CQ DK2OJ JO41
072330 -12  616  DK2OJ YR50NADIA -14
072930 -24 1896  DK2OJ DL6RDE -17 (x3)

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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