DL1FDK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO40

Receiver-side FT8 activity involving DL1FDK, decoded by SO8OO in southeastern Poland. 139 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 24 UTC dates in the available aggregate history. Observed between 2026-06-10 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 139 FT8 messages attributed to DL1FDK as the transmitting token by decoded message structure across 24 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (40%), followed by 20 m (37%) and 80 m (13%). Most decodes (78%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

139

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

160m · 12 80m · 18 60m · 1 40m · 56 20m · 52

First attributed message: 2026-06-10
Last attributed message: 2026-09-20 18:54 UTC

Observed FT8 message patterns

Attributed sample: 139 messages
Active dates: 24 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -16 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 65, strong (≥ -8 dB) 57.

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 DL1FDK in decoded directed-looking exchanges:

DG2RBH · Fed. Rep. of Germany DL1LCK · Fed. Rep. of Germany DL7MDX · Fed. Rep. of Germany DO4ATK · Fed. Rep. of Germany S57AM · Slovenia YO2MTG · Romania BA3NZ · China CR5VP · Portugal DA0LH · Fed. Rep. of Germany EA2WX/P · Spain JA0JWQ · Japan LZ1EV · Bulgaria

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 DL1FDK

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: JO40 · 88 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 911 km (approx.)
Last such locator decoded: 2026-09-20 18:54 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	DL1FDK S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 18:55	40m	- / -3	SP6TT	+7 / -	2	✓ Closing fragment
09-20 18:54	40m	-8 / -	JA4FKX	- / -	2	Partial capture
09-20 18:43	80m	-9 / -	HF100PKP	- / -	6	Partial capture
09-20 18:38	160m	-14 / -17	DG2RBH	-3 / -5	6	✓ Full exchange observed
09-20 18:36	160m	-16 / 0	DO4ATK	-5 / -5	4	✓ Full exchange observed
09-20 18:27	160m	- / 0	DL7MDX	-7 / -	2	✓ Closing fragment
09-20 18:19	160m	-12 / -	DL1LCK	- / -15	3	✓ Closing fragment
09-20 18:17	160m	-12 / -12	YO2MTG	+6 / -13	4	✓ Full exchange observed
09-13 15:08	40m	-12 / -	UB3ADO/P	- / -	2	Partial capture
09-11 15:20	40m	- / -5	SQ100PKP	-19 / -	2	Partial capture
09-11 15:14	40m	-6 / -	3Z100PKP	- / -8	2	Partial capture
09-11 15:11	40m	-7 / -	UF6V/UA5D	- / +2	4	Partial capture
09-10 15:55	40m	-2 / -	M0KCB/P	- / -8	3	Partial capture
09-10 14:54	40m	-9 / -	SN100PKP	- / +9	2	Partial capture
09-03 08:28	40m	-10 / -	DB26YLBB	- / -	2	Partial capture
09-03 08:16	40m	-16 / -	<...>	- / -	5	Partial capture
09-02 10:10	40m	-16 / -	<...>	- / -	2	Partial capture
09-01 06:57	40m	- / -	ON4KEB	-1 / -	3	Partial capture
08-30 17:38	20m	-2 / -	8Z1IT	- / -	3	Partial capture
08-30 17:37	20m	-3 / -	SP6AXW	- / -2	2	✓ Closing fragment
08-30 17:34	20m	-4 / -	<...>	- / 0	2	Partial capture
08-30 14:53	40m	- / +8	DL0PS	+10 / -	2	✓ Closing fragment
08-30 14:25	20m	-4 / -	YO4NF	- / +1	2	✓ Closing fragment
08-28 17:30	40m	-7 / -	IR7MGGC	- / -10	2	Partial capture
08-23 20:20	20m	-1 / -	JJ2IJU	- / -	3	Partial capture
08-23 20:18	20m	+4 / -	<...>	- / -	2	Partial capture
08-23 19:58	20m	-9 / -	F5OYA/P	-15 / -	7	Partial capture
08-23 19:53	20m	- / -	F5OYA/P	-8 / -	3	Partial capture
08-23 19:49	20m	- / -	F5OYA/P	-14 / -	3	Partial capture
08-23 19:48	20m	-10 / -	XU7O	- / -	2	Partial capture
08-23 19:46	20m	-2 / -19	JA0JWQ	-1 / -9	5	✓ Full exchange observed
08-23 19:42	20m	-4 / -9	BA3NZ	-12 / -23	10	✓ Full exchange observed
08-23 19:03	20m	+2 / -9	SV5BYP	+8 / -	3	✓ Closing observed
08-23 18:53	20m	-4 / -	EA2WX/P	- / -12	3	✓ Closing fragment
08-23 18:12	80m	-14 / -6	9A3EYA	+6 / -	4	✓ Closing observed
08-23 18:09	80m	- / -7	IU3MAG	-3 / -	3	✓ Closing fragment
08-22 18:22	80m	-14 / +8	DL6NDN	+2 / -	5	✓ Closing observed
08-22 18:12	40m	-8 / -1	9A6NCC	-4 / +9	4	✓ Full exchange observed
08-22 17:25	40m	- / +2	OK1VCB	+2 / -	2	✓ Closing fragment
08-22 17:22	40m	-9 / -	OM2WW	- / -	3	Partial capture
08-16 08:14	20m	-16 / -10	DA0LH	-8 / -	3	✓ Closing observed
08-15 19:32	80m	- / -10	HA3GO	+12 / -	2	✓ Closing fragment
08-15 19:01	80m	-9 / -	<...>	- / -9	5	Partial capture
08-15 18:53	40m	-9 / -4	DL0LGT	-7 / +6	4	Partial capture
08-15 18:47	40m	-12 / -	OZ0Q/LH	- / -11	5	Partial capture
08-10 10:42	20m	-13 / -	S09S	- / -	2	Partial capture
08-08 09:04	20m	-9 / -	CR5VP	- / -5	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
151245  -7  879  UF6V/UA5D DL1FDK JO40 (x2)
151445  -5  878  <3Z100PKP> DL1FDK R-08 (x2)
152030 -19 2124  DL1FDK SQ100PKP -05 (x2)
152115  -5  878  UF6V/UA5D DL1FDK JO40
150815 -11  951  UB3ADO/P DL1FDK JO40 (x2)
151630 +13 2931  DL1FDK 9A/DK9RC +07
185015 -10  611  SO100PKP DL1FDK JO40
185415  -7  981  JA4FKX DL1FDK JO40 (x2)
185515  +7  542  DL1FDK SP6TT -03 (x2)

80m

UTC    dB Audio  Message
181330  +3 2262  DL1FDK 9A3EYA -06 (x2)
181415 -16  582  9A3EYA DL1FDK 73
170115  -2  301  DL1FDK DF0AWG RR73
172100 +14 1820  DL1FDK SP100PKP -03
172115 -20  694  OU7M/P DL1FDK R-09
190830 +17 2568  DL1FDK SQ100PKP -02
191015 -12  495  OE100OEVSV DL1FDK R+02
191030 +14 2569  DL1FDK RR73; SV2FNT <...> -02
184315 -15  609  <HF100PKP> DL1FDK JO40 (x6)

160m

UTC    dB Audio  Message
182215 -10 2400  DL1FDK PA3DUU -03
182400 -14  843  DA6DE DL1FDK R-14
182600 -10  843  S57AM DL1FDK 73
182700  -5 1629  DL1FDK DL7MDX +00 (x2)
183630  -5 1757  DL1FDK DO4ATK +00
183645 -19  842  DO4ATK DL1FDK R-05
183700  -5 1758  DL1FDK DO4ATK RR73
183715 -14  843  DO4ATK DL1FDK 73
183815 -14  843  DG2RBH DL1FDK JO40
183830  -7  329  DL1FDK DG2RBH -17
183845 -13  843  DG2RBH DL1FDK R-05
183900  +0  329  DL1FDK DG2RBH RR73
183915 -14  843  DG2RBH DL1FDK 73
183930  -2  329  DL1FDK DG2RBH 73

20m

UTC    dB Audio  Message
180500 +12 1416  DL1FDK LZ1EV RR73
173445  -2  539  7Q5A DL1FDK JO40
173800  -1  539  W3FIZ DL1FDK JO40
141915  +1  694  RI1FJL DL1FDK JO40
142515  -5  694  YO4NF DL1FDK R+01 (x2)
172645 -10  645  8Z1IT DL1FDK JO40
172945 -14 2507  DL1FDK Z31PM -04
173445  -5 1528  <...> DL1FDK JO40 (x2)
173715  -3  532  SP6AXW DL1FDK -02 (x2)
173845  -1  532  8Z1IT DL1FDK JO40 (x3)

60m

UTC    dB Audio  Message
185845  -8  577  DK1TBL DL1FDK JO40

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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