DF8RU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN68

Receiver-side FT8 activity involving DF8RU, decoded by SO8OO in southeastern Poland. 6,418 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 32 UTC dates in the available aggregate history. Observed between 2026-06-06 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 6,418 FT8 messages attributed to DF8RU as the transmitting token by decoded message structure across 32 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (77%), followed by 80 m (11%) and 20 m (11%). Most decodes (56%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (86%); the estimated median was +1.7 dB.

Overview

6,418

Messages attributed

UTC dates decoded

343

Active 15-min windows

+1.7 dB

Estimated median S/N

Bands

80m · 732 40m · 4,970 20m · 684 10m · 32

First attributed message: 2026-06-06
Last attributed message: 2026-09-08 19:43 UTC

Observed FT8 message patterns

Attributed sample: 6,418 messages
Active dates: 32 UTC dates
Estimated median S/N: +1.7 dB
Estimated 10th-90th percentile: -10 to +13 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 204, moderate (-15 to -9 dB) 682, strong (≥ -8 dB) 5,532.

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 DF8RU in decoded directed-looking exchanges:

F1IQH · France ×6 LZ1ZF · Bulgaria ×5 UI6O · European Russia ×5 SQ8LE · Poland ×5 DJ2MS · Fed. Rep. of Germany ×5 MI0OBC · Northern Ireland ×4 IK4LZH · Italy ×4 F4SNF · France ×4 LA8ENA · Norway ×4 M0CKX · England ×4 M6XZD · England ×4 YO4GIY · Romania ×4

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 DF8RU

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: JN68 · 3,839 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 658 km (approx.)
Last such locator decoded: 2026-09-08 19:43 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	DF8RU S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-08 19:41	40m	+9 / -	EA5/F4IDT	- / -5	2	Partial capture
09-08 19:40	40m	+9 / -	M0ELS	- / +8	3	✓ Closing fragment
09-08 19:37	40m	+15 / -	8Z1IT	- / -5	5	Partial capture
09-08 19:35	40m	+12 / -2	OZ1NIB	-4 / -	6	✓ Full exchange observed
09-08 19:33	40m	+13 / -	RN3YN	- / -	4	Partial capture
09-08 19:31	40m	+5 / -	BG5JGG	- / -	3	Partial capture
09-08 19:30	40m	+10 / -	R6YG	- / -	3	✓ Closing fragment
09-08 19:28	40m	+7 / -	M9PCA	- / -	3	Partial capture
09-08 19:24	40m	+4 / -	M9PCA	- / -	4	Partial capture
09-08 19:22	40m	+4 / -	M8JYD	-20 / +1	4	✓ Closing observed
09-08 19:19	40m	+6 / -	HA3PV	+1 / -	6	✓ Full exchange observed
09-07 22:32	80m	-7 / -4	DA6OOM	-10 / -1	5	✓ Full exchange observed
09-07 22:21	80m	-8 / 0	SM7TZK	+10 / -	6	✓ Full exchange observed
09-07 22:21	80m	- / -	CT2GQA	-10 / -	2	Partial capture
09-07 22:16	80m	+4 / -6	SP7OK	-4 / 0	5	✓ Full exchange observed
09-07 22:14	80m	+9 / -	DO8JB	- / -	3	Partial capture
09-07 22:13	80m	+7 / -9	OV6ZM	-5 / 0	4	✓ Full exchange observed
09-07 22:09	80m	-6 / -	LA4NM	-5 / -	5	✓ Closing observed
09-07 22:05	80m	-6 / -13	R5AV	-3 / +3	8	✓ Full exchange observed
09-07 22:04	80m	- / -	ON4MAP	-22 / -	2	Partial capture
09-07 22:04	80m	+8 / -2	RL3T	-9 / +2	5	✓ Full exchange observed
09-07 22:02	80m	+6 / -	T77NC	- / -14	2	✓ Closing fragment
09-06 06:27	80m	- / -	OZ7KJ/P	0 / -	4	Partial capture
09-06 06:23	80m	-17 / -	PE2JMR	- / -9	3	Partial capture
09-06 06:19	80m	-14 / +6	SN40KZE	+3 / -	3	Partial capture
09-06 06:18	80m	-6 / -	DO1BWS	-12 / +8	4	✓ Closing observed
09-06 06:11	80m	-11 / -15	LA9H	-22 / -5	5	✓ Full exchange observed
09-06 06:10	80m	-10 / -14	HF9D	+15 / -12	5	✓ Full exchange observed
09-06 06:05	80m	-10 / -20	HF9D	+16 / -12	8	✓ Full exchange observed
09-06 06:02	80m	-12 / -	F4FQY	- / -6	2	✓ Closing fragment
09-06 05:59	80m	-11 / -	M8FQT	- / -	3	Partial capture
09-06 05:57	80m	-23 / -	EA1DR	- / -	3	Partial capture
09-06 05:55	80m	-8 / -6	SP9TEX	+12 / 0	5	✓ Full exchange observed
09-06 05:52	80m	-14 / -	LA9H	- / -	3	Partial capture
09-06 05:51	80m	-12 / -9	DJ2PW	-19 / -	5	✓ Full exchange observed
09-06 05:48	80m	-10 / -	F1LPT/P	- / 0	4	✓ Closing fragment
09-06 05:46	80m	-23 / -11	ON1WFF	-8 / -	5	✓ Full exchange observed
09-06 05:44	80m	-6 / -	G0COG	- / -2	3	✓ Closing fragment
09-06 05:38	80m	- / -7	SP6TL	+14 / -	2	✓ Closing fragment
09-06 05:35	80m	-6 / -	EA3AKY	- / 0	2	Partial capture
09-06 05:30	80m	+3 / -	EA8SG	- / -	3	Partial capture
09-06 05:28	80m	-13 / +1	DF7AA	-2 / +3	5	✓ Full exchange observed
09-06 05:26	80m	-3 / -6	DL1HDL	-3 / +10	6	✓ Full exchange observed
09-06 05:24	80m	0 / -	MI0OBC	- / -17	4	✓ Closing fragment
09-06 05:23	80m	- / -	OZ7KJ/P	0 / -	2	Partial capture
09-06 05:19	80m	-6 / -2	PA3T	-6 / -	5	✓ Full exchange observed
09-06 05:17	80m	+2 / -	2E0LMA	- / -	4	Partial capture
09-06 05:13	80m	-14 / -	G0ABI	-21 / -	5	✓ Closing observed
09-06 05:12	80m	-4 / -10	F6DZU	-11 / 0	5	✓ Full exchange observed
09-06 05:10	80m	-5 / -	EA8SG	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
193600  -4 1028  DF8RU OZ1NIB -02
193615 +11 1028  OZ1NIB DF8RU R+13 (x2)
193715  +3 2097  GM6ZC DF8RU JN68
193745 +16  605  8Z1IT DF8RU JN68 (x5)
194015 +10 1718  M0ELS DF8RU JN68 (x3)
194145  +9 2159  EA5/F4IDT DF8RU JN68 (x2)
194315  +8 2352  CN8NS DF8RU JN68

80m

UTC    dB Audio  Message
222545  -6 1502  CQ DF8RU JN68
222600  -4 2502  DF8RU F1PBZ +00
222600 -20 2737  DF8RU LB6NK JP20
222915  +3 1502  CQ DF8RU JN68 (x5)
223215  -8 1144  DA6OOM DF8RU JN68
223230 -15 1143  DF8RU DA6OOM -04
223245  -7 1144  DA6OOM DF8RU R-01
223300  -6 1143  DF8RU DA6OOM RR73
223315  -6 1144  DA6OOM DF8RU 73
223445  -6 1145  CQ DF8RU JN68 (x2)

20m

UTC    dB Audio  Message
101345 +14 1570  RM6OG DF8RU JN68
101400  -6 2088  DF8RU RM6OG +01 (x2)
101445 +18 1570  RM6OG DF8RU R+04 (x2)
101530  -8 2089  DF8RU RM6OG RR73
101545 +16 1570  RM6OG DF8RU 73
101615 +14 1570  M0LAD DF8RU JN68 (x2)
101700  -9 1570  DF8RU M0LAD -05
101715 +14 1570  M0LAD DF8RU JN68
101730 -10 1569  DF8RU M0LAD -05
101745 +16 1570  M0LAD DF8RU JN68
101800 -16 1569  DF8RU M0LAD -05
154500 -10  479  DF8RU EA1ARJ IN73

10m

UTC    dB Audio  Message
115115  +8  793  VU2JO DF8RU R-07 (x4)
115315  +5 2436  RV9CX DF8RU JN68 (x3)
113730 -22 1580  DF8RU UT7UJ -10
123800 -12 1211  DF8RU UR7UT KO50 (x4)
101730 -14 1591  DF8RU IU8ADS JN70 (x2)
105830  -2 2894  DF8RU 5P1KZX 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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