DO5DMF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO51

Receiver-side FT8 activity involving DO5DMF, decoded by SO8OO in southeastern Poland. 8 FT8 messages attributed to this token as transmitter, on 80m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-13 and 2026-09-16.

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 8 FT8 messages attributed to DO5DMF as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). In this small sample, the estimated median decoder S/N was -23 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-23 dB

Estimated median S/N

Bands

80m · 8

First attributed message: 2026-09-13
Last attributed message: 2026-09-16 21:53 UTC

Observed FT8 message patterns

Attributed sample: 8 messages
Active dates: 2 UTC dates
Estimated median S/N: -23 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 1, 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 DO5DMF in decoded directed-looking exchanges:

DA0O · Fed. Rep. of Germany DF5RA · Fed. Rep. of Germany DK8VD · Fed. Rep. of Germany DL1DCT · Fed. Rep. of Germany DL1UDO · Fed. Rep. of Germany DL5JMN · Fed. Rep. of Germany DL5OAH · Fed. Rep. of Germany DO1LR · Fed. Rep. of Germany F1PBZ · France ON4MAP · Belgium SN1A · Poland

Most frequent locator attributed to DO5DMF

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: JO51 · 5 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 779 km (approx.)
Last such locator decoded: 2026-09-16 21:53 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	DO5DMF S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-16 21:53	80m	-24 / -6	DL5OAH	-4 / -6	4	✓ Full exchange observed
09-16 19:47	80m	- / -	DG4BZ	-16 / -	2	Partial capture
09-16 19:47	80m	- / -17	G0JEI	-20 / -	4	Partial capture
09-15 22:36	80m	- / -15	SN1A	+6 / -	3	✓ Closing fragment
09-15 22:29	80m	- / -16	DA0O	-7 / -	4	✓ Closing fragment
09-14 19:46	80m	- / -6	DO1LR	-5 / -	2	✓ Closing fragment
09-14 19:19	80m	- / -11	DF5RA	-9 / -	3	✓ Closing fragment
09-14 19:12	80m	- / -13	DL5JMN	-4 / -	3	✓ Closing fragment
09-14 18:48	80m	- / -14	DL1DCT	-6 / -	3	✓ Closing fragment
09-14 18:40	80m	- / -	SP9WAZ	-9 / -	2	Partial capture
09-14 18:24	80m	- / -20	DK8VD	+1 / -	2	✓ Closing fragment
09-14 18:22	80m	- / -	SP5DFK	0 / -	2	Partial capture
09-13 21:54	80m	- / -18	ON4MAP	-15 / -	5	✓ Closing fragment
09-13 21:41	80m	-22 / -24	DL1UDO	-1 / -1	5	✓ Full exchange observed
09-13 21:38	80m	- / -15	F1PBZ	+3 / -	6	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
223700  +6 1403  DO5DMF SN1A 73
194700 -23  901  CQ DO5DMF JO51
194745 -21  376  DO5DMF G0JEI -17
194745 -14 2882  DO5DMF DG4BZ JO42
194815 -12  376  DO5DMF G0JEI -17 (x2)
194845 -18 2882  DO5DMF DG4BZ JO42
194915 -24  376  DO5DMF G0JEI -17
211745  +0 1785  DO5DMF DL6ZNG JO52
214330 -19  873  CQ DO5DMF JO51 (x2)
215315  -3  873  DO5DMF DL5OAH JO42
215330 -24  873  DL5OAH DO5DMF -06
215345  -2  873  DO5DMF DL5OAH R-06 (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.

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