DL1RBR — 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 DL1RBR, decoded by SO8OO in southeastern Poland. 541 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-07-07.

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 541 FT8 messages attributed to DL1RBR as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (88%), followed by 40 m (10%) and 80 m (2%). Several six-hour UTC windows tied for the largest share (92%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (94%); the estimated median was +3 dB.

Overview

541

Messages attributed

UTC dates decoded

Active 15-min windows

+3 dB

Estimated median S/N

Bands

80m · 12 40m · 54 20m · 475

First attributed message: 2026-06-09
Last attributed message: 2026-07-07 22:27 UTC

Observed FT8 message patterns

Attributed sample: 541 messages
Active dates: 4 UTC dates
Estimated median S/N: +3 dB
Estimated 10th-90th percentile: -5 to +17 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 30, strong (≥ -8 dB) 511.

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 DL1RBR in decoded directed-looking exchanges:

CE3TSK · Chile DH1HF · Fed. Rep. of Germany GM3DRA · Scotland JH8SIT · Japan K2J · United States M0OVG · England M7IJS · England MM0UIO · Scotland N8FRJ · United States NP4JL · Puerto Rico OK1IG · Czech Republic ON1JP · Belgium

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 DL1RBR

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 · 324 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 658 km (approx.)
Last such locator decoded: 2026-07-07 22:24 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	DL1RBR S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-07 22:24	20m	-2 / -	K5ESK	- / -18	5	Partial capture
07-07 22:22	20m	- / -	DF3VG	-11 / -	11	Partial capture
07-07 22:17	20m	+1 / -	CE3TSK	- / -9	5	✓ Closing fragment
07-07 22:16	20m	-4 / -	CU6AD	- / -	2	Partial capture
07-07 22:13	20m	-4 / -	UT5MD	- / 0	3	✓ Closing fragment
07-07 22:11	20m	-4 / -	K2J	- / -15	3	✓ Closing fragment
07-07 22:02	20m	-12 / -6	DG6VC	-10 / -9	19	Partial capture
07-07 22:00	20m	-11 / -	WA9SUG	- / -17	2	✓ Closing fragment
07-07 21:58	20m	-7 / -	GM3DRA	-8 / -1	4	✓ Closing observed
07-07 21:56	20m	-6 / -	VA2KFF	- / -13	3	✓ Closing fragment
07-07 21:55	20m	-7 / +7	MM0UIO	-14 / -	2	✓ Closing observed
07-07 21:53	20m	-5 / -	KF0LJM	- / -14	3	Partial capture
07-07 21:52	20m	-3 / -	WA9WUD	- / -17	2	✓ Closing fragment
07-07 21:50	20m	-3 / -	VE1MDF	- / -	2	Partial capture
07-07 21:48	20m	-4 / -	MM0UIO	-10 / 0	3	Partial capture
07-07 21:46	20m	-2 / -	W6DPM	- / -	6	Partial capture
07-07 21:43	20m	-2 / -	NP4JL	- / -22	4	✓ Closing fragment
07-07 21:42	20m	-2 / -	K5ESK	- / -	2	Partial capture
07-07 21:39	20m	-8 / -	VA3ZJB	- / -	2	✓ Closing fragment
07-07 21:38	20m	-11 / -	N1WI	- / -	2	Partial capture
07-07 21:33	20m	-3 / -	K2L	- / -	9	Partial capture
07-07 21:31	20m	+1 / -	SP5EXA	- / +9	4	Partial capture
07-07 21:29	20m	0 / -	N1WI	- / -	3	Partial capture
07-07 21:27	20m	0 / -	AA8CS	- / -	4	Partial capture
07-07 21:24	20m	-2 / +5	M7IJS	-13 / -13	4	✓ Full exchange observed
07-07 21:23	20m	+3 / 0	M0OVG	-11 / -17	5	✓ Full exchange observed
07-07 21:21	20m	0 / -	K2L	- / -	2	Partial capture
07-07 21:18	20m	+1 / -	KZ4HQ	- / -9	3	Partial capture
07-07 21:16	20m	0 / -	HL2CFY	- / -13	4	Partial capture
07-07 21:11	20m	-2 / -	N8FRJ	- / -5	2	✓ Closing fragment
07-07 21:07	20m	- / -	F5JAE	-4 / -	6	Partial capture
07-07 21:03	20m	0 / -	JH8SIT	- / -11	4	✓ Closing fragment
07-06 16:05	40m	-6 / -	TA3NK	- / -13	2	✓ Closing fragment
07-06 16:04	40m	+2 / -	DL1ASL	- / -5	2	Partial capture
07-06 16:02	40m	+6 / -	DL6BAD	- / -2	2	✓ Closing fragment
07-06 16:01	40m	+4 / -	HF5A	- / +1	2	✓ Closing fragment
07-06 15:58	40m	-4 / -	PA3DRQ	- / -9	2	✓ Closing fragment
07-06 15:49	20m	-3 / -	TA6MMI	- / -12	3	Partial capture
07-06 15:47	20m	0 / -	DH1HF	- / +1	2	✓ Closing fragment
07-06 15:41	20m	- / -	PD3LKN	-12 / -	2	Partial capture
07-06 15:40	20m	-2 / -	ON1JP	- / +5	2	✓ Closing fragment
07-06 15:38	20m	- / +5	DM3XD	-23 / -	3	Partial capture
07-06 15:38	20m	-4 / -	PD3LWD	- / -9	3	✓ Closing fragment
07-06 15:32	20m	- / -	PD1HPB	-9 / -	2	✓ Closing fragment
07-06 15:32	20m	- / -1	PD2WL	-14 / -	6	Partial capture
07-06 15:27	20m	- / -17	PA2AMJ	-8 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
222330  +1  745  CQ DL1RBR JN68
222345 -14 1817  DL1RBR DF3VG JN48
222400  +5  745  K5ESK DL1RBR JN68 (x2)
222445 -12 1817  DL1RBR DF3VG JN48
222600  -1  745  K5ESK DL1RBR R-18
222615 -11 1817  DL1RBR DF3VG JN48
222630  -6  745  K5ESK DL1RBR R-18
222645 -13 1817  DL1RBR DF3VG JN48
222700  -6  745  K5ESK DL1RBR R-18
222715 -11 1817  DL1RBR DF3VG JN48 (x5)

40m

UTC    dB Audio  Message
155930  -1  631  GM0MST DL1RBR -13
160030  +3  631  CQ DL1RBR JN68
160100  +4  631  HF5A DL1RBR +01 (x2)
160200  +2  631  CQ DL1RBR JN68
160230  +5  631  DL6BAD DL1RBR -02 (x2)
160330  +9  631  CQ DL1RBR JN68
160400  +3  631  DL1ASL DL1RBR -05 (x2)
160530  -7  631  TA3NK DL1RBR -13 (x2)
160630  -5  631  CQ DL1RBR JN68 (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.

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