DJ9FBA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN39

Receiver-side FT8 activity involving DJ9FBA, decoded by SO8OO in southeastern Poland. 1,816 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 54 UTC dates in the available aggregate history. Observed between 2026-06-07 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 1,816 FT8 messages attributed to DJ9FBA as the transmitting token by decoded message structure across 54 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (83%), followed by 20 m (13%) and 10 m (2%). Most decodes (64%) fell within the six-hour window 02:00-08:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

1,816

Messages attributed

UTC dates decoded

217

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 27 60m · 7 40m · 1,511 20m · 238 10m · 33

First attributed message: 2026-06-07
Last attributed message: 2026-09-19 07:33 UTC

Observed FT8 message patterns

Attributed sample: 1,816 messages
Active dates: 54 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -18.4 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 371, moderate (-15 to -9 dB) 724, strong (≥ -8 dB) 721.

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 DJ9FBA in decoded directed-looking exchanges:

EG7VER · Spain ×5 TM2WWA · France ×4 IH9/IT9JUI · African Italy ×3 DL9KM · Fed. Rep. of Germany ×2 ED7SUN · Spain ×2 II3WWA · Italy ×2 M0IEP · England ×2 DA0WWA · Fed. Rep. of Germany ×2 GB2WWA · England ×2 IU1HGN · Italy ×2 WA2HIP · United States ×2 WZ8S · United States ×2

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 DJ9FBA

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: JN39 · 1,334 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,063 km (approx.)
Last such locator decoded: 2026-09-19 07:33 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	DJ9FBA S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 06:55	40m	- / -	SA4AGM	-16 / -	6	Partial capture
09-19 06:51	40m	-10 / -	IU1HGN	- / -6	2	✓ Closing fragment
09-19 06:39	40m	-6 / -	G0JEI	- / +1	2	✓ Closing fragment
09-19 06:37	40m	-7 / -	IK8DYE	- / -3	3	Partial capture
09-19 06:32	40m	-8 / -	PI4TS	-7 / -14	5	✓ Closing observed
09-19 06:27	40m	- / -	F3CJ	-17 / -	2	Partial capture
09-19 06:21	40m	-8 / -2	IK2UJS	-1 / -	3	✓ Closing observed
09-19 06:13	40m	- / -	SA4AGM	-12 / -	2	Partial capture
09-19 06:11	40m	-6 / +10	IZ4AIF	+4 / 0	4	✓ Full exchange observed
09-19 06:08	40m	-8 / -	M8FQT	-11 / -3	6	✓ Full exchange observed
09-19 04:54	40m	-8 / -	W2PAP	- / -16	2	Partial capture
09-19 04:36	40m	-8 / -18	HK3W	-16 / -12	5	✓ Full exchange observed
09-19 04:34	40m	-4 / -	KE8NBC	- / -18	3	Partial capture
09-19 04:30	40m	-2 / -	N2CG	- / -19	3	✓ Closing fragment
09-19 04:26	40m	-10 / -14	RN6MA	-2 / -17	5	✓ Full exchange observed
09-19 03:41	40m	- / -14	K3DFL	-11 / -	3	✓ Closing fragment
09-19 03:32	40m	- / -5	K1XE	-19 / -	3	✓ Closing fragment
09-19 03:19	40m	- / -	WB2WPM	-15 / -	2	✓ Closing fragment
09-19 03:14	40m	- / -19	W4GGJ	-22 / -	2	Partial capture
09-18 05:25	40m	-2 / -	KD9DIF	- / -	7	Partial capture
09-18 05:10	40m	-5 / -	KD9DIF	- / -	21	Partial capture
09-11 04:58	40m	-5 / -	KO4UFD	- / -23	2	Partial capture
09-11 04:24	40m	-15 / -	N3VA	-20 / -	2	✓ Closing observed
09-11 03:35	40m	- / -4	TA3NK	-1 / -	4	✓ Closing fragment
09-10 13:25	40m	- / -12	OZ9FF	0 / -	2	✓ Closing fragment
09-10 09:39	40m	- / -	DL1RMY	-13 / -	4	Partial capture
09-10 09:13	40m	-19 / -12	SH7MEM	-11 / -22	4	✓ Full exchange observed
09-10 09:09	40m	- / -	SH7MEM	-13 / -	2	Partial capture
09-10 09:09	40m	- / 0	9A7BB	-1 / -	4	✓ Closing fragment
09-10 06:03	40m	-3 / -	K4A	- / -	9	Partial capture
09-10 05:53	40m	- / -	RC2Y	-1 / -	3	Partial capture
09-10 05:37	40m	-4 / -	IH9/IT9JUI	- / -1	5	✓ Closing fragment
09-10 05:32	40m	-4 / -	KD8VYT	- / -16	2	Partial capture
09-10 05:28	40m	0 / -	LY2J	- / -	2	✓ Closing fragment
09-10 05:16	40m	-3 / -	KQ4NAQ	- / -16	3	✓ Closing fragment
09-10 05:14	40m	-4 / -	IH9/IT9JUI	- / -20	3	✓ Closing fragment
09-10 05:11	40m	-3 / -	K9GA	- / -18	3	✓ Closing fragment
09-10 04:21	40m	- / -13	N4QS	-14 / -	3	Partial capture
09-10 01:15	40m	- / -	AA2S	-10 / -	2	Partial capture
09-09 02:16	40m	- / -6	K5ZD	-8 / -	3	✓ Closing fragment
09-09 00:56	40m	- / -16	WA6VZN	-19 / -	3	✓ Closing fragment
09-08 18:45	40m	- / -	DL8UVG	0 / -	2	Partial capture
09-08 04:53	40m	- / -	WB8SCG	-15 / -	2	Partial capture
09-08 02:55	40m	- / -	WV2B	-11 / -	2	Partial capture
09-08 02:03	40m	- / -12	KS4OT	-9 / -	3	Partial capture
09-07 07:56	40m	-13 / -	PD5WA	- / -9	3	✓ Closing fragment
09-07 07:51	40m	-14 / -7	HA1ZW	-5 / -9	6	✓ Full exchange observed
09-07 07:45	40m	-15 / -	M0PFX	- / -13	2	✓ Closing fragment
09-07 07:23	40m	-11 / -	F5OQK	- / +3	2	✓ Closing fragment
09-07 07:14	40m	-14 / -	EI7IN	- / -17	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
072045  -7 1100  CQ DJ9FBA JN39 (x15)

20m

UTC    dB Audio  Message
120615 -14 2409  CQ DJ9FBA JN39 (x3)
122200 -22 1914  DJ9FBA OE8RPK JN76
122945 -18 1265  G8KIG DJ9FBA JN39
123130  -8 1266  DJ9FBA OE1TKS JN88
123145 -19 1265  CQ DJ9FBA JN39 (x2)
123345 -12 1265  OE8RPK DJ9FBA RR73
124945 -20 1870  M7VME DJ9FBA JN39 (x2)
125045 -18 1509  OZ7DR DJ9FBA JN39
125315 -22 1509  CQ DJ9FBA JN39 (x3)

10m

UTC    dB Audio  Message
103600 -20 1687  UA4FKT DJ9FBA RR73
103700 -19 1687  CQ DJ9FBA JN39
103715 -14 1687  DJ9FBA R7OV KN87
103730 -21 1687  CQ DJ9FBA JN39
103745 -13 1687  DJ9FBA R7OV KN87 (x2)
103830 -22 1687  OK2VCR DJ9FBA RR73
103930 -21 1687  CQ DJ9FBA JN39 (x2)
104400 -23 1688  OM3CUP DJ9FBA R+09 (x2)
104630 -24 1687  CQ DJ9FBA JN39 (x2)
104845 -13  842  DJ9FBA DL8NW JO30 (x2)

80m

UTC    dB Audio  Message
200415 -13 1953  CQ DJ9FBA JN39 (x3)
200530  -8 1950  DJ9FBA SP5DFK JO82
200545 -16 1953  SP5DFK DJ9FBA -12
200600  -8 1950  DJ9FBA SP5DFK R-05 (x2)
200645 -13 1953  SP5DFK DJ9FBA 73
200715 -18 1953  CQ DJ9FBA JN39
200730  -6 1954  DJ9FBA F5KEE JN18
200745 -13 1953  F5KEE DJ9FBA +09
200800  -8 1954  DJ9FBA F5KEE R+03
200815 -19 1953  F5KEE DJ9FBA RR73
200845 -12 1953  CQ DJ9FBA JN39 (x2)

60m

UTC    dB Audio  Message
195915  -5  493  CQ DJ9FBA JN39
195930 -11 1816  DJ9FBA DL9KM JN68
195945 -16 1815  DL9KM DJ9FBA -03
200000 +17  492  DJ9FBA UT5UGR +12
200000 -15 1816  DJ9FBA DL9KM R+02
200000 -22 1631  DJ9FBA DB5HA JO31
200015 -15 1815  DL9KM DJ9FBA RR73
200030 +19  492  DJ9FBA UT5UGR +12
200030 -13 1816  DJ9FBA DL9KM 73
200045 -15 1815  DL9KM DJ9FBA 73

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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