DL1DAF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO42

Receiver-side FT8 activity involving DL1DAF, decoded by SO8OO in southeastern Poland. 437 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 18 UTC dates in the available aggregate history. Observed between 2026-06-19 and 2026-09-09.

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 437 FT8 messages attributed to DL1DAF as the transmitting token by decoded message structure across 18 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (50%), followed by 80 m (31%) and 20 m (12%). Most decodes (81%) 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 -8 dB.

Overview

437

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

80m · 135 40m · 220 20m · 52 10m · 30

First attributed message: 2026-06-19
Last attributed message: 2026-09-09 18:07 UTC

Observed FT8 message patterns

Attributed sample: 437 messages
Active dates: 18 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -16 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 46, moderate (-15 to -9 dB) 155, strong (≥ -8 dB) 236.

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 DL1DAF in decoded directed-looking exchanges:

DD7EE · Fed. Rep. of Germany ×2 PV8AJ · Brazil ×2 UN8DSW · Kazakhstan ×2 UA4FKT · European Russia ×2 DK8HC · Fed. Rep. of Germany GM5BDX · Scotland LA1HW · Norway LZ2VQ · Bulgaria OM3TWM · Slovak Republic R1AV · European Russia R2FC · Kaliningrad 9K2OK · Kuwait

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 DL1DAF

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: JO42 · 301 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 934 km (approx.)
Last such locator decoded: 2026-09-09 18:07 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	DL1DAF S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-09 18:02	80m	-9 / -	ZS6WAB	- / -	10	Partial capture
09-09 17:18	80m	-3 / -	UF3T	- / -	2	Partial capture
09-08 20:03	80m	-6 / -4	DK7UY	-1 / +2	5	✓ Full exchange observed
09-08 20:02	80m	-6 / -4	DO1UKR	+2 / +6	4	✓ Full exchange observed
09-08 20:01	80m	-6 / -11	UA4FKT	0 / -7	4	✓ Full exchange observed
09-08 19:59	80m	-6 / -14	YO9HP	+6 / -13	6	✓ Full exchange observed
09-08 19:57	80m	- / -12	9A5E	+6 / -	4	✓ Closing fragment
09-07 20:55	80m	+2 / +8	OH6NIO	-4 / -2	4	✓ Full exchange observed
09-07 20:54	80m	0 / -13	DO3LZ	-4 / -12	4	✓ Full exchange observed
09-07 20:53	80m	-4 / -13	T77NC	-14 / -16	3	✓ Full exchange observed
09-07 20:49	80m	-6 / -	5Z4VJ	- / -	3	Partial capture
09-07 20:44	80m	+1 / -	5Z4VJ	- / -	4	Partial capture
09-07 20:42	80m	-8 / -13	EW8CW	+12 / -7	5	✓ Full exchange observed
09-07 20:39	80m	-12 / -18	HB9EKJ	-6 / -3	5	✓ Full exchange observed
09-07 20:36	80m	+3 / -	5Z4VJ	- / -	3	Partial capture
09-07 20:33	80m	- / -16	DD7EE	+16 / -	4	✓ Closing fragment
09-07 20:31	80m	-4 / -14	R3MDA	0 / -12	4	Partial capture
09-07 20:14	80m	-8 / -11	LY1VR	+13 / +5	6	✓ Full exchange observed
09-07 20:06	80m	-11 / -	T77NC	- / -	4	Partial capture
09-07 19:55	80m	-7 / -	SP100PKP	- / -	6	Partial capture
09-07 19:46	80m	-3 / -	T77NC	- / -	2	Partial capture
09-07 19:39	80m	-9 / -	T77NC	- / -	5	Partial capture
09-07 19:36	80m	-13 / -12	ES6RMR	-6 / -6	6	✓ Full exchange observed
09-07 19:33	80m	-11 / -	SP5DFK/QRP	- / -	2	Partial capture
09-07 19:32	80m	-13 / -	3Z100PKP	- / -	2	Partial capture
09-07 19:28	80m	- / -13	DM5JBN	+6 / -	4	✓ Closing fragment
09-07 19:25	80m	- / -	DC7MA	-10 / -	3	✓ Closing fragment
09-07 19:25	80m	- / -	DD7EE	-2 / -	2	Partial capture
09-07 19:25	80m	+3 / -15	UA4FKT	+5 / 0	6	✓ Full exchange observed
09-07 19:22	80m	+4 / -	EA6Y	-1 / -	5	✓ Closing observed
09-07 19:14	80m	- / -15	EA6Y	+2 / -	3	Partial capture
09-03 18:22	80m	-5 / -14	9A6NCC	+5 / -	6	✓ Closing observed
09-03 18:16	80m	-7 / -	LB1UK	-6 / -	4	✓ Closing observed
09-03 18:10	80m	-8 / +9	PA3EVY	-4 / -	5	✓ Full exchange observed
09-03 18:06	80m	-5 / -10	LY1DY	+9 / -8	10	✓ Full exchange observed
09-03 04:11	80m	-16 / -22	SV8LMQ	-11 / -	11	Partial capture
09-03 04:06	80m	-11 / -	WV2M	- / -	6	Partial capture
09-02 20:27	80m	+1 / -	<...>	- / -	7	Partial capture
09-02 20:02	80m	+3 / -	DL4ABN	-7 / -	3	✓ Closing observed
09-02 19:59	80m	+3 / -	TF3VE	- / -16	7	Partial capture
09-02 19:53	80m	-2 / -	TF3VE	- / -	2	Partial capture
09-02 19:49	80m	- / -16	OZ7CL	+8 / -	2	✓ Closing fragment
09-02 19:45	80m	-8 / -	SP5DFK/QRP	- / -23	2	Partial capture
09-02 19:29	80m	- / -7	SP7OK	+5 / -	4	✓ Closing fragment
08-08 04:33	20m	- / -13	9K2OK	-16 / -	2	✓ Closing fragment
08-06 20:47	20m	-20 / -	C91RU	- / -	2	Partial capture
08-06 20:40	20m	-18 / -	YU4OCC	- / -	5	Partial capture
07-29 17:06	20m	-10 / -	5N0YEN	- / -	9	Partial capture
07-12 04:29	40m	-13 / -	PV8AJ	- / -1	8	✓ Closing fragment
07-12 04:24	40m	-14 / -	XE1HYV	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
200400  -2 2372  DL1DAF DK7UY R-04
200415  -4 2326  DK7UY DL1DAF RR73
200430  +3 2372  DL1DAF DK7UY 73
171800  -4 2118  UF3T DL1DAF JO42 (x2)
180215  -4 2019  ZS6WAB DL1DAF JO42 (x10)

20m

UTC    dB Audio  Message
170800  -6 1473  5N0YEN DL1DAF JO42 (x6)
204045 -19 2021  YU4OCC DL1DAF JO42 (x5)
204745 -16 2021  C91RU DL1DAF JO42 (x2)
043300 -14 1578  DL1DAF 9K2OK -13 (x2)

40m

UTC    dB Audio  Message
041130 -24 2013  XE1HYV DL1DAF JO42
041745 -18 2404  XQ2OP DL1DAF R-16 (x2)
042100 -12 2404  ZL2CA DL1DAF JO42 (x2)
042400 -13 2404  XE1HYV DL1DAF JO42 (x2)
042945 -13 2404  PV8AJ DL1DAF JO42 (x8)

10m

UTC    dB Audio  Message
184715 -13 2209  R2FC DL1DAF JO42 (x5)
085800 -12 2341  OM3TWM DL1DAF R+13 (x2)
085945 -13 2341  YL3ARQ DL1DAF JO42 (x5)
164215 -22 1979  DL1DAF PF7DKW JO21
154430  -8 2581  <...> DL1DAF JO42 (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.

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