DL4YEL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO31

Receiver-side FT8 activity involving DL4YEL, decoded by SO8OO in southeastern Poland. 18 FT8 messages attributed to this token as transmitter, on 60m, 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-31 and 2026-09-08.

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 18 FT8 messages attributed to DL4YEL as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (83%), followed by 60 m (17%). In this small sample, the estimated median decoder S/N was -19 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-19 dB

Estimated median S/N

Bands

60m · 3 40m · 15

First attributed message: 2026-08-31
Last attributed message: 2026-09-08 19:45 UTC

Observed FT8 message patterns

Attributed sample: 18 messages
Active dates: 3 UTC dates
Estimated median S/N: -19 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

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

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 DL4YEL in decoded directed-looking exchanges:

DD7EE · Fed. Rep. of Germany F5PBG · France F8MRQ · France G8KHF · England LA1KUA · Norway PA2HD · Netherlands SQ8NA · Poland F5OZC · France LA1HW · Norway OH3JF · Finland ON7GB · Belgium

Most frequent locator attributed to DL4YEL

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: JO31 · 12 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,054 km (approx.)
Last such locator decoded: 2026-09-08 19:45 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	DL4YEL S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-13 18:08	40m	- / -12	LA1KUA	+1 / -	2	✓ Closing fragment
09-08 19:46	60m	- / -	PE1PEO	-11 / -	7	Partial capture
09-08 19:46	60m	- / -	SP9UPH	+8 / -	2	Partial capture
09-08 19:44	60m	- / -	PA3FR	-14 / -	3	Partial capture
09-08 19:44	60m	- / +1	ON7GB	+7 / -	8	✓ Closing fragment
09-08 19:43	60m	- / -	9A4ZM	0 / -	2	Partial capture
09-08 19:42	60m	- / -	DC7MA	-18 / -	2	Partial capture
09-08 19:41	60m	- / -	HA7TM	+11 / -	3	Partial capture
09-08 19:29	60m	- / -8	F5OZC	-6 / -	2	✓ Closing fragment
09-08 19:07	60m	- / -9	OH3JF	+8 / -	2	✓ Closing fragment
09-02 18:21	40m	-11 / -	F1LPT/P	- / -	2	Partial capture
08-31 18:36	40m	-19 / -19	SQ8NA	-7 / -3	6	✓ Full exchange observed
08-31 18:34	40m	- / -3	PA2HD	+4 / -	2	✓ Closing fragment
08-31 18:33	40m	- / -9	F5PBG	-2 / -	2	✓ Closing fragment
08-31 18:31	40m	-22 / -10	DD7EE	-3 / -	4	✓ Closing observed
08-31 18:30	40m	-19 / -11	F8MRQ	-8 / -	3	✓ Closing observed
08-31 18:07	40m	-19 / -	F4FSY	- / -8	2	Partial capture
08-31 18:03	40m	- / -	F5PBG	0 / -	2	Partial capture
08-31 18:02	40m	- / -16	F4FSY	0 / -	3	Partial capture
08-31 17:56	40m	-20 / -7	G8KHF	0 / +1	4	✓ 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
183530 -17 1877  F4HIK DL4YEL JO31
183600 -18 1877  SQ8NA DL4YEL JO31
183715  -6 1484  DL4YEL SQ8NA -19
183730 -21 1876  PE2LRT DL4YEL JO31
183745  -8 1484  DL4YEL SQ8NA -19
183800 -19 1877  SQ8NA DL4YEL R-03
183815  -7 1484  DL4YEL SQ8NA RR73
183830 -20 1877  SQ8NA DL4YEL R-03
183900 -19 1877  YL3RK DL4YEL JO31
183930 -17 1877  G7HEB DL4YEL JO31
182130 -14 1894  F1LPT/P DL4YEL JO31 (x2)
182415  -3  651  DL4YEL DL7DL JO62
180815  +1  398  DL4YEL LA1KUA -12 (x2)

60m

UTC    dB Audio  Message
194530  -5  700  DL4YEL G5DSG IO93
194630  +8 2157  DL4YEL SP9UPH JO90
194630  -6 1887  DL4YEL PE1PEO JO22
194630 +11  533  DL4YEL ON7GB JO21
194700  +9 2157  DL4YEL SP9UPH JO90
194700 -10 1887  DL4YEL PE1PEO JO22
194730  -5 2127  DL4YEL ON7GB +01
194800 -12 1887  DL4YEL PE1PEO JO22
194800  -7 2127  DL4YEL ON7GB R-02
194830 -11 1887  DL4YEL PE1PEO JO22
194830  +1 2127  DL4YEL ON7GB 73
194900 -11 1887  DL4YEL PE1PEO JO22 (x3)
201130 -10 1282  DL4YEL LA1HW 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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