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. 1,372 FT8 messages attributed to this token as transmitter, on 80m, across 6 UTC dates in the available aggregate history. Observed between 2026-09-13 and 2026-09-26.

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 1,372 FT8 messages attributed to DO5DMF as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). Most decodes (88%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (89%); the estimated median was -1 dB.

Overview

1,372

Messages attributed

UTC dates decoded

Active 15-min windows

-1 dB

Estimated median S/N

Bands

80m · 1,372

First attributed message: 2026-09-13
Last attributed message: 2026-09-26 19:57 UTC

Observed FT8 message patterns

Attributed sample: 1,372 messages
Active dates: 6 UTC dates
Estimated median S/N: -1 dB
Estimated 10th-90th percentile: -9 to +6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 23, moderate (-15 to -9 dB) 125, strong (≥ -8 dB) 1,224.

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 DO5DMF in decoded directed-looking exchanges:

ON4MAP · Belgium ×3 DJ8TX · Fed. Rep. of Germany ×2 IK0BAL · Italy ×2 PE2JMR · Netherlands ×2 RK6OZ · European Russia ×2 2E0LMA · England 4O7CC · Montenegro 5B4AMM · Cyprus 9A3AUH · Croatia 9A6NCC · Croatia C37AC · Andorra CT1BWU · Portugal

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 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 · 844 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 779 km (approx.)
Last such locator decoded: 2026-09-26 19:57 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
09-26 19:55	80m	-4 / -	GU4WRP	- / -	4	Partial capture
09-26 19:52	80m	-2 / -	G0NIG	-10 / -	2	✓ Closing observed
09-26 19:50	80m	+3 / -	R8CW	- / -	2	Partial capture
09-26 19:46	80m	-7 / -	EA4DL	- / -20	3	✓ Closing fragment
09-26 19:44	80m	-1 / -	DF9HT/P	- / -13	4	✓ Closing fragment
09-26 19:42	80m	-3 / -5	F5LVR	-12 / -15	5	✓ Full exchange observed
09-26 19:41	80m	+5 / -	DO9MH	- / 0	2	✓ Closing fragment
09-26 19:37	80m	0 / -	RY4D	- / -	2	Partial capture
09-26 19:36	80m	-4 / +2	OL900JAR	-7 / -13	3	Partial capture
09-26 19:35	80m	-4 / -	UA9JTJ/9	- / -	2	Partial capture
09-26 19:32	80m	-7 / -	S57MPU	- / -4	4	Partial capture
09-26 19:29	80m	-7 / -	LZ936BA	- / -	2	Partial capture
09-26 19:25	80m	-7 / -	S57MPU	- / -	3	Partial capture
09-26 19:23	80m	-9 / -	OH9FTW	- / -	3	Partial capture
09-26 19:21	80m	-7 / -	EB4DMH	- / -25	3	✓ Closing fragment
09-26 19:20	80m	-8 / -	ON3RV	- / -7	2	✓ Closing fragment
09-26 19:18	80m	-9 / -	DK2LA	-9 / +7	4	✓ Closing observed
09-26 19:16	80m	-3 / -	DO2AY	- / -6	3	✓ Closing fragment
09-26 19:12	80m	-5 / -2	IK4PLW	-6 / +1	3	✓ Full exchange observed
09-26 19:09	80m	-8 / -	OH3DJP	- / -15	5	✓ Closing fragment
09-26 19:07	80m	-12 / -3	DO5PE	-17 / -14	3	Partial capture
09-26 19:02	80m	-10 / -2	HB3YYA	-13 / 0	4	✓ Full exchange observed
09-26 18:58	80m	-14 / -	R6OU	- / -	2	Partial capture
09-26 18:55	80m	-9 / -	MI7IHF	- / -6	7	✓ Closing fragment
09-26 18:53	80m	-15 / -	LA4VUA	- / -9	3	✓ Closing fragment
09-26 18:52	80m	-8 / -	ON5MX	- / -	2	✓ Closing fragment
09-26 18:51	80m	-11 / -8	EA5AQB	-6 / -	3	✓ Closing observed
09-26 18:49	80m	-8 / -	RU3KO	- / -	2	Partial capture
09-26 18:47	80m	-14 / -	SP100PKP	- / -	2	Partial capture
09-26 18:45	80m	-9 / -	DO2SGW	- / -13	3	✓ Closing fragment
09-26 18:44	80m	-6 / -13	RX3ASQ	0 / -11	4	✓ Full exchange observed
09-26 18:43	80m	-8 / -	LA4VUA	- / -	2	Partial capture
09-26 18:41	80m	-6 / -	SP100PKP	- / -	2	Partial capture
09-26 18:36	80m	-6 / -9	R1BED	-21 / -	3	✓ Closing observed
09-26 18:34	80m	-7 / -1	SM2OTU	-14 / -	3	✓ Closing observed
09-26 18:33	80m	- / -9	SP1ZMO	-6 / -	2	✓ Closing fragment
09-26 18:30	80m	-5 / -1	SP6TID	+2 / -15	5	✓ Full exchange observed
09-26 18:27	80m	-3 / -4	OE7GJ	-14 / -12	4	✓ Full exchange observed
09-26 18:23	80m	-6 / -6	IU5TPM	-8 / -	4	✓ Closing observed
09-26 18:19	80m	-5 / -	R1AV	0 / -3	6	Partial capture
09-26 18:13	80m	+6 / -5	R2FEA	+4 / -	3	✓ Closing observed
09-26 18:10	80m	- / -4	EU1AFX	-4 / -	3	Partial capture
09-26 18:05	80m	+5 / -9	LY2BVB	+4 / -1	7	✓ Full exchange observed
09-25 21:37	80m	-14 / -12	SP5EXA	+15 / +6	5	✓ Full exchange observed
09-25 21:34	80m	+5 / -5	DO6NI	-12 / -10	5	✓ Full exchange observed
09-25 21:31	80m	0 / -	GW4HZA	-9 / -16	4	✓ Closing observed
09-25 21:29	80m	-4 / -	PA5MB/QRP	- / -	3	Partial capture
09-25 21:28	80m	-2 / +2	DJ3JD	-4 / -	5	✓ Full exchange observed
09-25 21:26	80m	+9 / -4	M0NXD	-8 / -15	5	✓ Full exchange observed
09-25 21:25	80m	0 / -	DK9WI	- / -	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
194845  -5 1059  CQ DO5DMF JO51 (x4)
195045  +2 1059  R8CW DO5DMF JO51 (x2)
195230 -10  745  DO5DMF G0NIG RR73
195245  -2 1060  G0NIG DO5DMF 73
195315  +4 1059  CQ DO5DMF JO51 (x2)
195515  -8 2451  GU4WRP DO5DMF JO51
195530 -10 3056  DO5DMF DG3IAM JN48
195545  -5 2451  GU4WRP DO5DMF JO51 (x3)

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