DK3TNA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO62

Receiver-side FT8 activity involving DK3TNA, decoded by SO8OO in southeastern Poland. 4,019 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 77 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-20.

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 4,019 FT8 messages attributed to DK3TNA as the transmitting token by decoded message structure across 77 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (46%), followed by 40 m (32%) and 80 m (19%). Most decodes (51%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

4,019

Messages attributed

UTC dates decoded

662

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 772 40m · 1,274 20m · 1,856 10m · 117

First attributed message: 2026-06-06
Last attributed message: 2026-09-20 07:41 UTC

Observed FT8 message patterns

Attributed sample: 4,019 messages
Active dates: 77 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -20 to -1.5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,173, moderate (-15 to -9 dB) 1,329, strong (≥ -8 dB) 1,517.

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 DK3TNA in decoded directed-looking exchanges:

DL9KM · Fed. Rep. of Germany ×4 IK2UCL · Italy ×4 DH2RL · Fed. Rep. of Germany ×3 HA5LB · Hungary ×3 DL8NW · Fed. Rep. of Germany ×2 F1BBM · France ×2 II3DRC · Italy ×2 IQ2AAH · Italy ×2 PD0CIF · Netherlands ×2 DK0ACI · Fed. Rep. of Germany ×2 ED7SUN · Spain ×2 F4EDB · France ×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 DK3TNA

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: JO62 · 2,812 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 675 km (approx.)
Last such locator decoded: 2026-09-20 07:41 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	DK3TNA S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 07:40	40m	-6 / -	TM60LOUV	- / -	2	Partial capture
09-20 07:37	40m	-8 / -13	G5KUE	-19 / -8	6	✓ Full exchange observed
09-20 07:26	40m	-6 / -	PD1UM	- / -	7	Partial capture
09-20 07:24	40m	-3 / +3	OH3MB	-10 / -14	4	✓ Full exchange observed
09-20 07:22	40m	-12 / -	TM60LOUV	- / -18	2	Partial capture
09-20 07:21	40m	-12 / -	MI0AIH	- / -	2	Partial capture
09-19 21:18	40m	- / -9	M0EBM	-18 / -	2	Partial capture
09-19 20:55	80m	-1 / -	SN40KZE	- / -	5	Partial capture
09-19 20:27	80m	+2 / -	SQ9WRT	- / -	3	Partial capture
09-19 20:24	80m	-2 / -3	OK1PHM	+8 / -7	5	✓ Full exchange observed
09-19 20:22	80m	-7 / -6	DK2MAX	-1 / -11	5	✓ Full exchange observed
09-19 20:18	40m	-8 / -	IR4DCI	- / -	2	Partial capture
09-19 20:16	40m	-8 / -	IU2RNE	- / -	3	Partial capture
09-19 20:12	40m	-7 / -	IR4DCI	- / -	8	Partial capture
09-19 09:34	40m	-6 / -6	SP3WBV	-7 / -17	5	✓ Full exchange observed
09-19 09:14	40m	-15 / -	YU65AEC	- / -	3	Partial capture
09-18 06:28	40m	-8 / -	F4NEM/P	- / -6	2	Partial capture
09-18 06:25	40m	-7 / -	DF0NN	- / -2	3	✓ Closing fragment
09-18 06:16	40m	-7 / -	DD2VO	-14 / -8	8	✓ Closing observed
09-18 06:12	40m	-7 / -11	E70N	-8 / -13	10	✓ Full exchange observed
09-18 06:04	40m	-7 / -	F4NEM/P	- / -	15	Partial capture
09-18 06:00	40m	0 / -	ON8WR	- / -13	2	✓ Closing fragment
09-18 05:56	40m	-7 / -	CR7BRV	- / -	7	Partial capture
09-18 05:55	40m	-5 / -	F4NEM/P	-17 / -	2	✓ Closing observed
09-18 05:52	40m	-5 / -	F4NHL	- / -5	2	✓ Closing fragment
09-18 05:45	80m	-21 / -	M8FQT	- / -	10	Partial capture
09-18 05:43	80m	-21 / -	DO8JB	- / -	3	Partial capture
09-18 05:36	80m	-5 / -13	HB9CIC	-18 / -11	14	Partial capture
09-18 05:29	80m	-9 / -5	PA3EWG	-9 / -1	5	✓ Full exchange observed
09-18 05:21	80m	-10 / -	S58Y	- / -	3	Partial capture
09-18 05:12	80m	0 / -	DO8JB	- / -	5	Partial capture
09-17 20:58	80m	-10 / -	SN40KZE	- / -	4	Partial capture
09-17 20:57	80m	-6 / -6	DL3GA	-3 / -	3	✓ Closing observed
09-17 20:45	40m	- / -	UA4FKT	+4 / -	3	Partial capture
09-17 20:33	80m	-9 / +6	LA4NM	-5 / -1	6	✓ Full exchange observed
09-17 20:26	80m	-9 / 0	DF1IH	-1 / -9	10	✓ Full exchange observed
09-17 20:24	80m	-8 / -	DO4CNA	- / -	4	Partial capture
09-17 20:16	80m	-7 / -6	SQ3PA	-19 / -6	5	✓ Full exchange observed
09-17 20:14	80m	-3 / -	DO4CNA	- / -	3	Partial capture
09-17 20:08	80m	-6 / -13	YU7BW	+9 / -	4	✓ Closing observed
09-17 20:03	80m	-6 / -	DA6CGN	- / -12	3	✓ Closing fragment
09-17 19:52	80m	-6 / -	S57MPU	- / -	3	Partial capture
09-17 19:36	80m	-3 / -	DL75WAU	- / -16	2	Partial capture
09-17 19:32	80m	-3 / -	DO7KGB	- / -17	7	✓ Closing fragment
09-16 20:09	80m	-5 / -	TK/4O7CC	- / -15	3	Partial capture
09-16 20:05	40m	-20 / -	J48S	- / -	6	Partial capture
09-15 19:17	40m	-3 / 0	ON1DGN	-8 / -9	5	✓ Full exchange observed
09-15 19:14	40m	-9 / -2	DL1NB	-9 / -13	5	✓ Full exchange observed
09-15 19:12	40m	-4 / -	EA1RT	- / -7	4	✓ Closing fragment
09-15 04:29	80m	-6 / -7	PA4PA	0 / -7	7	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
072745  -7 1841  PD1UM DK3TNA JO62 (x2)
072945  -6 1840  MI0AIH DK3TNA JO62
073015  -8 1840  PD1UM DK3TNA JO62 (x3)
073530 -10 1840  TM60LOUV DK3TNA JO62
073745 -19 1695  DK3TNA G5KUE -13
073800  -9 1840  G5KUE DK3TNA R-08
073815 -20 1695  DK3TNA G5KUE -13
073830  -6 1840  G5KUE DK3TNA R-06
073845 -17 1695  DK3TNA G5KUE RR73
073900  -9 1840  G5KUE DK3TNA 73
074045  -5 1840  TM60LOUV DK3TNA JO62 (x2)

80m

UTC    dB Audio  Message
202315  +4  854  DK3TNA DK2MAX RR73
202330 -10 1354  DK2MAX DK3TNA 73
202400  -8 1354  OK1PHM DK3TNA JO62
202415  +6 2410  DK3TNA OK1PHM -03
202430  -1 1354  OK1PHM DK3TNA R-07
202445 +10 2410  DK3TNA OK1PHM RR73
202500  +2 1354  OK1PHM DK3TNA 73
202745  -1 1354  SQ9WRT DK3TNA JO62 (x3)
205515  -6 1804  SN40KZE DK3TNA JO62 (x5)

20m

UTC    dB Audio  Message
162000  +0 1977  HA3HM DK3TNA JO62 (x3)
162600  +4 1977  OE8DGG/P DK3TNA JO62 (x5)
163215 -10 1977  OH1AK DK3TNA JO62
163245  -4 1977  G4FAL DK3TNA JO62
163300 +16 2283  DK3TNA G4FAL -08
163315  +3 1977  G4FAL DK3TNA R-02
163330 +18 2283  DK3TNA G4FAL RR73
163345  +3 1977  G4FAL DK3TNA 73
170415  -4 2751  DK3TNA DL7HS RR73

10m

UTC    dB Audio  Message
142345 -14 1743  II3DRC DK3TNA JO62 (x2)
150600 -13 1742  F4GWN DK3TNA JO62
150730 -16 1743  II7MGBT DK3TNA JO62
163445 -18 2042  PD4FLD DK3TNA JO62 (x2)
163630 -17 2045  DK3TNA DL3KBB JO30
163900 -22 2042  OM3CPV DK3TNA JO62 (x3)
164215 -22 2042  M7KIU DK3TNA JO62
164245 -20 2042  HF7X DK3TNA JO62 (x3)
164745 -22 2113  DK3TNA F4BQS -10

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee