DL9DBF — 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 DL9DBF, decoded by SO8OO in southeastern Poland. 1,008 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 59 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-09-19.

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 1,008 FT8 messages attributed to DL9DBF as the transmitting token by decoded message structure across 59 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (40%), followed by 60 m (32%) and 20 m (12%). Most decodes (83%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12.7 dB.

Overview

1,008

Messages attributed

UTC dates decoded

188

Active 15-min windows

-12.7 dB

Estimated median S/N

Bands

80m · 406 60m · 320 40m · 82 20m · 123 10m · 77

First attributed message: 2026-06-09
Last attributed message: 2026-09-19 21:32 UTC

Observed FT8 message patterns

Attributed sample: 1,008 messages
Active dates: 59 UTC dates
Estimated median S/N: -12.7 dB
Estimated 10th-90th percentile: -19 to -7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 274, moderate (-15 to -9 dB) 556, strong (≥ -8 dB) 178.

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 DL9DBF in decoded directed-looking exchanges:

IU5HIU · Italy ×2 AO5FSB · Spain ×2 DG1KFR · Fed. Rep. of Germany ×2 F4DIA · France ×2 LA3BO · Norway ×2 DG5PW · Fed. Rep. of Germany ×2 DM1YS · Fed. Rep. of Germany EA1A · Spain EA3HH · Spain F6FDY · France IK7IMK · Italy LU1HB · Argentina

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 DL9DBF

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 · 730 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 911 km (approx.)
Last such locator decoded: 2026-09-19 21:30 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	DL9DBF S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 21:39	80m	- / -9	DO1ZTR	-12 / -	2	✓ Closing fragment
09-19 21:32	80m	-10 / -	OE5ABL	- / -7	2	✓ Closing fragment
09-19 21:29	80m	-10 / -4	DC8RA	+14 / -	7	✓ Full exchange observed
09-19 21:25	60m	-6 / -	SM7HWD	- / -	4	Partial capture
09-19 21:21	60m	-7 / -	EA4HSF	- / -	3	Partial capture
09-19 21:19	60m	-6 / -	V51PJ	- / -	2	Partial capture
09-19 21:15	60m	-8 / -	F4JWW	- / -6	5	Partial capture
09-19 21:08	60m	-7 / -	<...>	- / -	7	Partial capture
09-19 21:00	60m	- / -6	F1PBZ	-5 / -	2	✓ Closing fragment
09-19 20:51	60m	-12 / -2	G6INI	-10 / +5	4	✓ Full exchange observed
09-18 06:09	40m	- / -7	OZ6G	+2 / -	2	✓ Closing fragment
09-18 06:03	40m	- / -12	LA3LUA	-12 / -	2	✓ Closing fragment
09-18 05:58	40m	-23 / -10	LA3BO	+8 / -	3	✓ Closing observed
09-18 05:55	40m	- / -12	9A1CC	-7 / -	2	✓ Closing fragment
09-18 05:50	40m	-16 / -	F6DZU	- / -	2	Partial capture
09-16 11:14	40m	- / -20	DG1KFR	-12 / -	3	✓ Closing fragment
09-16 10:42	40m	- / 0	DL6EL	-6 / -	3	✓ Closing fragment
09-16 10:27	40m	- / -7	DL6CMF	-20 / -	2	Partial capture
09-15 21:40	80m	-20 / -	UA3IGR/R	- / -	3	Partial capture
09-15 21:08	60m	-8 / -	F4HTO	- / -	6	Partial capture
09-15 21:02	60m	-10 / -16	GX3RAF/P	-7 / -	5	✓ Closing observed
09-14 22:06	80m	-16 / -8	ON4MAP	-24 / +2	4	✓ Full exchange observed
09-14 22:01	80m	-17 / -5	DL7GP	0 / +2	7	✓ Full exchange observed
09-14 21:58	80m	-12 / +5	ON4CJU	+4 / -	4	✓ Closing observed
09-14 21:55	80m	-8 / -	DH1HF	-24 / -	3	✓ Closing observed
09-14 21:53	80m	-17 / -	G4RCV	- / -	4	Partial capture
09-14 21:50	80m	-18 / -	EM70WWW	- / -	4	Partial capture
09-14 21:46	80m	-8 / 0	G4CDN	+6 / -	5	✓ Full exchange observed
09-14 21:43	80m	-8 / -	EA1KE	- / -	6	Partial capture
09-14 21:42	80m	-10 / -11	DL1UDO	+3 / +4	3	✓ Full exchange observed
09-14 21:17	60m	-18 / -	DK2MAX	- / -	2	Partial capture
09-14 21:10	60m	- / -9	DJ6MN	-12 / -	2	✓ Closing fragment
09-13 20:42	40m	- / -6	EH2PDA	-10 / -	2	✓ Closing fragment
09-13 16:31	40m	-16 / -	EX7CQ	- / -	2	Partial capture
09-13 14:45	40m	- / -14	DB0IPA	-5 / -	2	✓ Closing fragment
09-13 08:09	40m	- / -8	DL0DM	-12 / -	2	✓ Closing fragment
09-13 08:03	40m	- / -16	HA3TBL	-6 / -	2	✓ Closing fragment
09-12 21:16	80m	-6 / -15	EH3ST	-4 / +2	5	✓ Full exchange observed
09-12 21:14	80m	-11 / -	EA3EQS	- / -	3	Partial capture
09-12 21:12	80m	- / -15	DA7T	-8 / -	2	✓ Closing fragment
09-12 19:59	60m	-20 / -	SQ8CBY	- / -	7	Partial capture
09-12 19:56	60m	-16 / -	DL9ZAL/QRP	- / -	2	Partial capture
09-12 19:49	60m	-16 / -	G0TSM/P	- / -	2	Partial capture
09-12 19:47	60m	-22 / -	LB5AK	- / -	2	Partial capture
09-12 19:44	60m	-20 / -	LB5AK	- / -	2	Partial capture
09-11 07:53	40m	- / -25	E75FM	-9 / -	2	✓ Closing fragment
09-09 21:32	60m	- / -21	EH1PDA	-6 / -	2	✓ Closing fragment
09-07 20:54	40m	-14 / -	OZ1NIB	-5 / +5	10	✓ Closing observed
09-07 20:46	40m	-11 / -	VA2RC/P	- / -2	4	Partial capture
09-07 20:45	40m	-8 / -	SO100PKP	- / -	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
214415 -21  967  <TK/4O7CC> DL9DBF JO40 (x2)
212900 -11  637  DC8RA DL9DBF JO40 (x3)
213045 +16  637  DL9DBF DC8RA -04
213100 -10  638  DC8RA DL9DBF R+16
213115 +13  637  DL9DBF DC8RA RR73
213130  -7  638  DC8RA DL9DBF 73
213200 -13  638  OE5ABL DL9DBF R-07 (x2)
213500  +3 1593  DL9DBF SN40KZE -13
213700 +15 2015  DL9DBF OK1AWC RR73
213930 -12  265  DL9DBF DO1ZTR -09 (x2)

60m

UTC    dB Audio  Message
211130  -7  401  <...> DL9DBF JO40
211515  -8  402  F4JWW DL9DBF JO40 (x5)
211930  -5  402  V51PJ DL9DBF JO40 (x2)
212130  -6  402  EA4HSF DL9DBF JO40 (x3)
212515 -10  402  SM7HWD DL9DBF JO40 (x4)

40m

UTC    dB Audio  Message
111500 -12  862  DL9DBF DG1KFR -20 (x2)
055030 -18 2372  F6DZU DL9DBF JO40 (x2)
055545  -8 1353  DL9DBF 9A1CC -12 (x2)
055800 -23 2373  LA3BO DL9DBF JO40
055945 +10 2758  DL9DBF LA3BO -10 (x2)
060315 -10  358  DL9DBF LA3LUA -12 (x2)
060915  +4  770  DL9DBF OZ6G -07 (x2)
063915 -23 2140  J88IH DL9DBF JO40
071145 -18 2274  DL9DBF MW7GQB RR73

20m

UTC    dB Audio  Message
105015 -16 2435  RI1FJL DL9DBF JO40 (x3)
110130 -14 2434  F4CQS DL9DBF JO40 (x2)
122230  -5 1094  DL9DBF II7MGXX -04
122245  -3 2889  OH0/ES2TT DL9DBF R-08
123000 -10 2889  W1ZT DL9DBF 73
134630  -8 2740  M3WHB DL9DBF JO40 (x7)

10m

UTC    dB Audio  Message
112345 -16 2414  MM3WYM DL9DBF JO40
113045 -17 2414  OM0AFM DL9DBF JO40 (x3)
114300 -19 2340  EU6W DL9DBF JO40
131945 -12 1310  DL9DBF RC5F -14
164045 -13 2609  ON8PB DL9DBF R+01
145545  +4 1092  DL9DBF SV7BAY -20 (x3)
140945 -16  895  DL9DBF EA3CU +15
094645  -8  578  DL9DBF SV2HTW RR73
132545  -9 2596  G7RES DL9DBF R-13
132730 -14 2596  DO9PV DL9DBF JO40
182130 -11  675  PY1EME DL9DBF R-15

160m

UTC    dB Audio  Message
211345 +12 1907  DL9DBF SP6AXW -18 (x4)

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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