DL3XRZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN59

Receiver-side FT8 activity involving DL3XRZ, decoded by SO8OO in southeastern Poland. 350 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 33 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-09-09.

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 350 FT8 messages attributed to DL3XRZ as the transmitting token by decoded message structure across 33 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (90%), followed by 20 m (5%) and 40 m (2%). Most decodes (96%) 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 -13.2 dB.

Overview

350

Messages attributed

UTC dates decoded

Active 15-min windows

-13.2 dB

Estimated median S/N

Bands

80m · 316 60m · 4 40m · 7 20m · 18 10m · 5

First attributed message: 2026-06-10
Last attributed message: 2026-09-09 18:21 UTC

Observed FT8 message patterns

Attributed sample: 350 messages
Active dates: 33 UTC dates
Estimated median S/N: -13.2 dB
Estimated 10th-90th percentile: -20 to -7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 117, moderate (-15 to -9 dB) 178, strong (≥ -8 dB) 55.

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 DL3XRZ in decoded directed-looking exchanges:

OM5JG · Slovak Republic ×4 DL1UDO · Fed. Rep. of Germany ×4 HB9EFK · Switzerland ×3 DO9KB · Fed. Rep. of Germany ×3 PI4DX · Netherlands ×3 F1PBZ · France ×3 OK1TRJ · Czech Republic ×2 DO2RG · Fed. Rep. of Germany ×2 HB9TOC · Switzerland ×2 HA7TM · Hungary ×2 DO1DMR · Fed. Rep. of Germany ×2 OM1II · Slovak Republic ×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 DL3XRZ

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: JN59 · 268 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 777 km (approx.)
Last such locator decoded: 2026-09-09 18:21 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	DL3XRZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-09 20:44	80m	- / -10	OZ7CL	-7 / -	2	✓ Closing fragment
09-09 18:50	80m	- / -17	DL4KER	-9 / -	3	Partial capture
09-08 21:40	80m	-14 / -19	ON4MAP	-14 / -12	8	✓ Full exchange observed
09-08 21:11	80m	-13 / -16	G4DBW	-8 / -	3	✓ Closing observed
09-08 20:59	80m	-20 / -25	PI4DX	-8 / -6	3	✓ Full exchange observed
09-08 20:43	80m	-22 / -	MM0JTV	-17 / -	2	✓ Closing observed
09-07 18:41	80m	-14 / -12	DL1UDO	+5 / -1	5	✓ Full exchange observed
09-07 18:25	80m	-14 / -	DO4FOX	- / -	5	Partial capture
09-07 17:44	80m	- / -19	DO1ZTR	-6 / -	2	✓ Closing fragment
09-06 20:15	80m	- / -14	DD7EE	-2 / -	2	✓ Closing fragment
09-06 19:32	80m	- / -17	DO2RG	+4 / -	2	✓ Closing fragment
09-06 19:07	80m	- / -16	DO6MFD	-6 / -	2	✓ Closing fragment
09-06 18:27	80m	- / -1	DO7DNY	-5 / -	3	✓ Closing fragment
09-06 18:19	80m	- / +4	DJ7YP	+12 / -	2	Partial capture
09-06 17:02	80m	- / -24	SP9GCZ	+9 / -	3	✓ Closing fragment
09-05 18:23	80m	- / -9	DK9JC	+4 / -	2	Partial capture
09-05 17:45	80m	- / -18	OM1II	+14 / -	3	✓ Closing fragment
09-04 18:43	80m	- / -	DG6BI	-17 / -	2	Partial capture
09-04 18:20	80m	- / -16	9A5E	+10 / -	7	Partial capture
09-03 21:26	80m	-20 / -	DK0NID	- / -	2	Partial capture
09-03 21:04	80m	-21 / -23	HB9TOC	+12 / -	3	✓ Closing observed
09-03 19:30	80m	- / -17	M3YEU	-4 / -	2	Partial capture
09-03 18:59	80m	- / -19	DL1JEL	+6 / -	3	✓ Closing fragment
09-02 21:12	80m	-12 / -	DA6SL	- / -	2	Partial capture
09-02 21:07	80m	-9 / -	M7PDJ	- / -	3	Partial capture
09-02 21:03	80m	- / -11	DK1MCS	0 / -	2	✓ Closing fragment
09-01 07:26	40m	- / -19	HA1ZW	-5 / -	7	Partial capture
08-30 17:28	40m	- / -21	ON7AN	0 / -	3	✓ Closing fragment
08-29 21:56	80m	- / -5	DL1WZ	-8 / -	2	✓ Closing fragment
08-29 21:50	80m	- / -5	HB3YBG	-16 / -	2	✓ Closing fragment
08-29 21:45	80m	- / -13	G8BCG	-3 / -	2	✓ Closing fragment
08-29 21:38	80m	- / -6	HB9TOC	-6 / -	2	✓ Closing fragment
08-29 21:09	80m	-16 / -8	F5LOW	-10 / -16	5	✓ Full exchange observed
08-29 17:22	20m	-15 / -	TA4DX	- / -	2	Partial capture
08-29 17:18	20m	-15 / -	TA4DX	- / -	2	Partial capture
08-28 10:15	20m	-15 / -	TA1MB	- / -	5	Partial capture
08-28 10:08	20m	- / -12	IK4LZH	+14 / -	3	✓ Closing fragment
08-26 21:05	60m	- / -	LY3W	+14 / -	2	Partial capture
08-26 21:05	60m	- / -13	OT4R	-12 / -	2	Partial capture
08-26 18:59	80m	-14 / -12	S56P	0 / +2	3	Partial capture
08-25 18:51	40m	- / -14	DL1ARS/P	+8 / -	2	Partial capture
08-23 17:02	20m	- / -	M7KPQ	-6 / -	4	Partial capture
08-21 19:55	60m	- / -5	DK7ZT	-9 / -	3	✓ Closing fragment
08-21 19:50	60m	- / -8	DK2NG	-4 / -	5	✓ Closing fragment
08-21 19:50	60m	- / -1	IV3DSG	+5 / -	3	✓ Closing fragment
08-20 18:41	40m	-11 / -12	DK5TX	-4 / -7	4	✓ Full exchange observed
08-20 18:34	40m	-8 / -12	DA2DA	-4 / -3	5	✓ Full exchange observed
08-20 18:31	40m	- / -17	9A6NCC	-2 / -	2	✓ Closing fragment
08-20 15:21	40m	- / -13	IK2UCL	-14 / -	2	✓ Closing fragment
08-18 20:46	80m	-4 / -12	PA3GDY	+14 / -	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
214000 -15  446  CQ DL3XRZ JN59
214045 -16 1492  DL3XRZ ON4MAP JO20
214100 -14  446  ON4MAP DL3XRZ -12
214115 -12 1492  DL3XRZ ON4MAP R-19 (x2)
214200 -17  446  ON4MAP DL3XRZ RR73
214215 -17 1492  DL3XRZ ON4MAP R-19
214230 -12  446  ON4MAP DL3XRZ RR73
214245 -13 1492  DL3XRZ ON4MAP 73
182130 -17  483  EW8CW DL3XRZ JN59
185015 -10 1712  DL3XRZ DL4KER -17 (x3)
204445 -10  870  DL3XRZ OZ7CL -10 (x2)

40m

UTC    dB Audio  Message
184130 -12  494  DK5TX DL3XRZ R-07
184145  -2 1428  DL3XRZ DK5TX RR73
191645  +9 2628  DL3XRZ DL6MRM -02
185145  +9  526  DL3XRZ DL1ARS/P -14 (x2)
172845  +1  682  DL3XRZ ON7AN R-21 (x3)
072645  -8 1343  DL3XRZ HA1ZW -19 (x7)

20m

UTC    dB Audio  Message
101800 -13  583  TA1MB DL3XRZ JN59 (x2)
171500 -17  536  CQ DL3XRZ JN59 (x5)
171830 -11  536  TA4DX DL3XRZ JN59 (x4)
173130  -8  536  CQ DL3XRZ JN59 (x4)

60m

UTC    dB Audio  Message
195045  +4  490  DL3XRZ IV3DSG JN66
195115  -5 1835  DL3XRZ DK2NG JO52
195115  +5  490  DL3XRZ IV3DSG R-01
195145  -4 1835  DL3XRZ DK2NG JO52
195145  +7  490  DL3XRZ IV3DSG 73
195215  -4 1835  DL3XRZ DK2NG R-08 (x2)
195400 -12  489  CQ DL3XRZ JN59
195515 -10 1900  DL3XRZ DK7ZT -05 (x3)
210515 -15 1455  DL3XRZ OT4R -13 (x2)
210545 +13  488  DL3XRZ LY3W KO14 (x2)

10m

UTC    dB Audio  Message
122115 -13 1838  DL3XRZ PD1B JO32
170845  +2  810  DL3XRZ M0BEW -18 (x2)
181345  +0  401  DL3XRZ DK7UY JO44 (x3)
182045 -13  634  DL3XRZ PD1HPB JO22

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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