DL9GTB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO63

Receiver-side FT8 activity involving DL9GTB, decoded by SO8OO in southeastern Poland. 203 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-12 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 203 FT8 messages attributed to DL9GTB as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (68%), followed by 20 m (24%) and 80 m (5%). Most decodes (89%) 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 (86%); the estimated median was -1 dB.

Overview

203

Messages attributed

UTC dates decoded

Active 15-min windows

-1 dB

Estimated median S/N

Bands

160m · 138 80m · 11 40m · 6 20m · 48

First attributed message: 2026-06-12
Last attributed message: 2026-09-19 20:51 UTC

Observed FT8 message patterns

Attributed sample: 203 messages
Active dates: 8 UTC dates
Estimated median S/N: -1 dB
Estimated 10th-90th percentile: -11 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 19, strong (≥ -8 dB) 174.

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 DL9GTB in decoded directed-looking exchanges:

EX7CQ · Kyrgyzstan UA1OMS · European Russia BA3QIQ · China BG4TRN · China BG9PQO · China C91RU · Mozambique R4FDW · European Russia UR4QWW · Ukraine

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 DL9GTB

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: JO63 · 158 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 723 km (approx.)
Last such locator decoded: 2026-09-19 20:51 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	DL9GTB S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 20:38	160m	-4 / -	RI1FJZ	- / -	14	Partial capture
09-19 20:34	160m	-10 / -	RI1FJZ	- / -	3	Partial capture
09-19 20:25	160m	-2 / -	RI1FJZ	- / -	7	Partial capture
09-19 20:08	160m	+2 / -	RI1FJZ	- / -	6	Partial capture
09-19 18:53	160m	-1 / -	RI1FJZ	- / -	5	Partial capture
09-19 18:17	160m	0 / -17	R3SV	+7 / -	4	Partial capture
09-19 18:15	160m	-1 / -	EX7CQ	- / -3	3	Partial capture
09-19 18:08	160m	+3 / -	RI1FJZ	- / -18	9	Partial capture
09-19 18:07	160m	- / -	OK1DXR	+3 / -	7	Partial capture
09-19 18:03	160m	+3 / -21	EX7CQ	-14 / -	10	✓ Closing observed
09-04 21:58	160m	+2 / -	RI1FJL	- / -18	39	Partial capture
09-04 21:54	160m	-1 / -	RI1FJL	- / -	3	Partial capture
09-04 21:47	160m	- / -	DL9GCG	-6 / -	2	Partial capture
09-04 21:45	160m	+2 / -	RI1FJL	- / -	7	Partial capture
09-04 21:43	160m	+2 / -	ZS1J	- / -	2	Partial capture
09-04 21:39	160m	-1 / -	RI1FJL	- / -	3	Partial capture
09-04 21:31	160m	+4 / -	RI1FJL	- / -	7	Partial capture
09-04 21:17	160m	-1 / -	RI1FJL	- / -	17	Partial capture
09-04 20:39	160m	-6 / -13	UA1OMS	-9 / -3	4	✓ Full exchange observed
09-01 20:20	80m	+5 / -	RI1FJL	- / -19	4	Partial capture
09-01 20:16	80m	0 / -	RI1FJL	- / -	2	Partial capture
08-21 07:14	20m	-14 / -	OJ0YL	- / -	2	Partial capture
07-13 18:00	20m	-4 / -	IK4RVY	- / +7	2	Partial capture
07-13 17:54	20m	-6 / -7	UR4QWW	-4 / +1	7	✓ Full exchange observed
07-13 17:38	20m	-8 / -9	DH1NGL	-9 / -14	7	Partial capture
07-13 17:35	20m	-16 / -	C91RU	- / -15	5	✓ Closing fragment
07-13 17:27	20m	-13 / -	9N2WF	- / -	2	Partial capture
07-13 16:43	20m	-10 / -	BG4TRN	- / -17	2	✓ Closing fragment
07-13 16:41	20m	-3 / -	BG9PQO	- / -18	3	✓ Closing fragment
07-13 16:32	20m	-7 / -	9N2WF	- / -	5	Partial capture
07-13 16:22	20m	-12 / -	3B8GL	- / -11	3	Partial capture
07-13 16:12	40m	+1 / -	RI1PC	- / -	6	Partial capture
07-12 17:36	20m	-7 / -	OH0KCE	- / -	6	Partial capture
07-12 17:31	20m	-17 / -	OH0KCE	- / -	2	Partial capture
07-12 17:24	20m	-2 / -	OH0KCE	- / -	6	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
203545 -11 1754  RI1FJZ DL9GTB JO63 (x15)

80m

UTC    dB Audio  Message
201615  +2 2555  RI1FJL DL9GTB JO63 (x6)

20m

UTC    dB Audio  Message
174445 -16 2278  RI0SP DL9GTB JO63
175415 -21 2278  BA3QIQ DL9GTB RR73
175430  -9  369  DL9GTB UR4QWW KN77 (x2)
175545 -12 2278  R4FDW DL9GTB 73
175600  -8  369  DL9GTB UR4QWW KN77
175615  -6 2278  UR4QWW DL9GTB +01
175630  -2  369  DL9GTB UR4QWW R-07
175645  -6 2278  UR4QWW DL9GTB RR73
175700  -2  369  DL9GTB UR4QWW 73
180030  -5 2278  IK4RVY DL9GTB JO63 (x2)
070615  -2 2018  OJ0YL DL9GTB JO63 (x3)

40m

UTC    dB Audio  Message
161245  +6 2656  RI1PC DL9GTB JO63 (x6)

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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