DL4FAA — 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 DL4FAA, decoded by SO8OO in southeastern Poland. 6 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-05 and 2026-09-10.

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 6 FT8 messages attributed to DL4FAA as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -21 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-21 dB

Estimated median S/N

Bands

40m · 6

First attributed message: 2026-09-05
Last attributed message: 2026-09-10 18:58 UTC

Observed FT8 message patterns

Attributed sample: 6 messages
Active dates: 2 UTC dates
Estimated median S/N: -21 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 0.

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 DL4FAA in decoded directed-looking exchanges:

ON6SAT · Belgium ×2 DD7EE · Fed. Rep. of Germany DK2SHS · Fed. Rep. of Germany DK4FH · Fed. Rep. of Germany IK4RVY · Italy MW0USK · Wales ON4CJU · Belgium OZ9FF · Denmark PA9JO · Netherlands S52UF · Slovenia SM7TZK · Sweden SP6FME · Poland

Most frequent locator attributed to DL4FAA

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 · 4 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 911 km (approx.)
Last such locator decoded: 2026-09-10 18:58 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	DL4FAA S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-12 13:56	40m	- / -13	DF0NN	-18 / -	3	Partial capture
09-12 09:27	40m	- / -17	OZ9FF	-7 / -	4	✓ Closing fragment
09-11 13:01	40m	- / -20	PD1WD	-18 / -	2	Partial capture
09-11 12:54	40m	- / -15	PA9JO	-16 / -	2	✓ Closing fragment
09-11 12:35	40m	- / -21	SP6FME	-14 / -	7	✓ Closing fragment
09-11 12:25	40m	- / -7	DG4FFF	-19 / -	2	Partial capture
09-11 12:13	40m	- / -4	ON6SAT	-12 / -	2	✓ Closing fragment
09-11 12:09	40m	- / -6	ON6SAT	-16 / -	2	✓ Closing fragment
09-10 19:09	40m	- / -18	IK4RVY	-8 / -	2	✓ Closing fragment
09-10 18:58	40m	- / -	F5PBG	-3 / -	2	Partial capture
09-10 18:57	40m	-14 / -	SM7TZK	+1 / +3	2	✓ Closing observed
09-10 18:48	40m	- / -15	SM7TZK	-7 / -	3	Partial capture
09-10 18:40	40m	- / -15	US2UM	+2 / -	2	Partial capture
09-10 17:30	40m	- / -4	DJ9KM	-15 / -	2	Partial capture
09-10 17:27	40m	- / -12	IS0/IK2YCW	-12 / -	3	Partial capture
09-10 17:14	40m	- / -12	YL3CW	-17 / -	2	✓ Closing fragment
09-06 11:43	40m	- / +7	DK7ZT	-19 / -	3	Partial capture
09-05 17:38	40m	-24 / -	JY4CI	- / -	2	Partial capture
09-05 17:00	40m	- / -21	DK7ZT	-2 / -	2	Partial capture
09-05 16:58	40m	- / -24	US8KA	+8 / -	4	✓ Closing fragment
09-05 16:44	40m	- / -14	S52UF	-6 / -	2	✓ Closing fragment
09-05 16:30	40m	- / -5	DK2SHS	+9 / -	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
130100 -18  991  DL4FAA PD1WD -20 (x2)
160430 +10  679  DL4FAA 9A4ZM JN86
092715  -7 2314  DL4FAA OZ9FF -17 (x4)
132830 -18 1514  DL4FAA ON4CJU RR73
133915  -4 2266  DL4FAA IK0BAL -16
135615 -19 2058  DL4FAA DF0NN -13 (x3)
141500 -13 1032  DL4FAA PD1HTW -11
141800  +7 1956  DL4FAA DL0HAM -12
095600  -7  874  DL4FAA DD7EE RR73

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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