DL5XU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO50

Receiver-side FT8 activity involving DL5XU, decoded by SO8OO in southeastern Poland. 378 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 35 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-09-20.

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 378 FT8 messages attributed to DL5XU as the transmitting token by decoded message structure across 35 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (82%), followed by 40 m (12%) and 80 m (4%). Most decodes (65%) fell within the six-hour window 03:00-09:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (82%); the estimated median was +2 dB.

Overview

378

Messages attributed

UTC dates decoded

Active 15-min windows

+2 dB

Estimated median S/N

Bands

160m · 9 80m · 15 40m · 45 20m · 309

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

Observed FT8 message patterns

Attributed sample: 378 messages
Active dates: 35 UTC dates
Estimated median S/N: +2 dB
Estimated 10th-90th percentile: -12 to +16 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 21, moderate (-15 to -9 dB) 46, strong (≥ -8 dB) 311.

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 DL5XU in decoded directed-looking exchanges:

VK4FFF · Australia ×2 AH6EZ · United States BG0FQU · China D2IM · Angola JY5CG · Jordan KB0TYJ · United States OX3LX · Greenland RI0SP · European Russia UA9KAD · Asiatic Russia VK2SMP · Australia VK4XK · Australia VP5G · Turks & Caicos Islands

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 DL5XU

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: JO50 · 150 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 770 km (approx.)
Last such locator decoded: 2026-09-20 20:04 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	DL5XU S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 20:06	80m	- / -	DO8JB	+3 / -	13	Partial capture
09-20 20:06	80m	- / -	DO9BAU	+9 / -	13	Partial capture
09-20 20:00	80m	+15 / -	RI1FJZ	- / -13	13	✓ Closing fragment
09-20 17:30	80m	+15 / -	RI1FJZ	- / -	2	Partial capture
09-19 20:44	160m	+5 / -	RI1FJZ	- / -	9	Partial capture
08-29 07:28	20m	0 / -	ZL3BT	- / -16	12	Partial capture
08-29 07:28	20m	-7 / -	VK4XK	- / -	2	✓ Closing fragment
08-29 07:21	20m	+14 / -	VK4XK	- / -19	3	Partial capture
08-29 07:14	20m	+9 / -	ZL3BT	- / -	12	Partial capture
08-29 07:09	20m	+11 / -	VK4XK	- / -17	10	Partial capture
08-28 06:42	20m	+19 / -	VK2AJB	- / -25	12	Partial capture
08-28 05:22	20m	+13 / -	VK4RT	- / -	7	Partial capture
08-28 04:38	20m	- / -	F5PBG	-8 / -	4	Partial capture
08-26 05:52	20m	- / -	F5RRS	0 / -	3	Partial capture
08-23 08:44	20m	+12 / -	ZV8R	- / -17	5	Partial capture
08-23 08:39	20m	+18 / -	VK6XT	- / -15	8	Partial capture
08-23 06:59	20m	+11 / -	VK2KBM	- / -25	7	Partial capture
08-23 06:32	20m	-3 / -	VK4XK	- / -24	13	Partial capture
08-22 05:07	20m	+4 / -	D2IM	-14 / -13	4	✓ Closing observed
08-22 05:04	20m	+10 / -	D2IM	- / -	2	Partial capture
08-22 04:58	20m	+13 / -	VK4FFF	- / -17	13	✓ Closing fragment
08-22 04:36	20m	-8 / -	AH6EZ	- / -	2	✓ Closing fragment
08-20 07:00	20m	- / -	F5RAV	-8 / -	4	Partial capture
08-20 06:59	20m	- / -	LZ2VQ	+2 / -	3	Partial capture
08-20 06:55	20m	+13 / -	VK2SMP	- / -12	8	✓ Closing fragment
08-18 15:16	20m	-5 / -	OY1HJ	- / -	6	Partial capture
08-17 17:46	20m	+8 / -	E25IJJ	- / -	2	Partial capture
08-17 17:43	20m	+2 / -	E25IJJ	- / -16	3	Partial capture
08-16 07:45	40m	-10 / -	SM1NFH/P	- / -	4	Partial capture
08-15 16:21	40m	-15 / +2	DA0OIE	-14 / -	8	✓ Closing observed
08-12 14:43	20m	+11 / -	OX3LX	- / -25	3	✓ Closing fragment
08-11 05:04	20m	-10 / -	HZ1YJ	- / -	2	Partial capture
08-07 06:12	20m	- / -	EB3JT	-2 / -	2	Partial capture
08-06 05:32	20m	-5 / -	KB0TYJ	- / -21	4	✓ Closing fragment
08-04 16:48	20m	0 / -	VK2GQR	- / -16	11	Partial capture
08-04 15:55	20m	-4 / -	BG0FQU	- / -14	22	✓ Closing fragment
08-03 17:41	20m	-8 / -	S21VHF	- / -	6	Partial capture
08-02 06:27	20m	-7 / -	XE1TZP	- / -10	7	✓ Closing fragment
07-27 04:42	20m	-3 / -1	VP5G	-14 / -	3	✓ Closing observed
07-25 06:11	20m	+3 / -	VK2GQR	- / -24	7	Partial capture
07-24 17:08	20m	-13 / -	<...>	- / -10	10	Partial capture
07-20 05:09	20m	+4 / -	KM7BVA	- / -20	5	Partial capture
07-19 16:32	20m	- / -	F5PBG	-22 / -	2	Partial capture
07-19 16:27	20m	-11 / -	UA9KAD	- / -14	4	✓ Closing fragment
07-16 16:49	20m	-6 / -	ZL1GT	- / -25	11	Partial capture
07-16 16:02	20m	- / +2	UA6YW	-2 / -	3	Partial capture
07-16 15:55	20m	- / +9	UA4FEN	-2 / -	3	Partial capture
07-15 16:27	20m	0 / -	BG0FQU	- / -10	5	Partial capture
07-15 16:25	20m	-1 / -	S21ALT	- / -	3	Partial capture
07-13 17:21	20m	+2 / -	VR2KF	- / -15	7	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
200900  +3  712  DL5XU DO8JB JO32
200930 +10 2102  DL5XU DO9BAU JO62
200930  +2  712  DL5XU DO8JB JO32
201000 +10 2102  DL5XU DO9BAU JO62
201000  +4  712  DL5XU DO8JB JO32
201030  +5 2102  DL5XU DO9BAU JO62
201030  +7  712  DL5XU DO8JB JO32
201100 +10 2102  DL5XU DO9BAU JO62
201100  +4  712  DL5XU DO8JB JO32
201130 +11 2102  DL5XU DO9BAU JO62
201130  +6  712  DL5XU DO8JB JO32
201200  +6 2102  DL5XU DO9BAU JO62
201200  -5  712  DL5XU DO8JB JO32
201230  +2 2102  DL5XU DO9BAU JO62
201230  +2  712  DL5XU DO8JB JO32

160m

UTC    dB Audio  Message
204415  +6  800  RI1FJZ DL5XU JO50 (x9)

20m

UTC    dB Audio  Message
072800 -10 2452  VK4XK DL5XU RR73
072830  -7 2452  ZL3BT DL5XU -16
072900  -4 2451  VK4XK DL5XU RR73
073030  -3 2449  ZL3BT DL5XU JO50 (x11)
074215  +1 1279  DL5XU UT7UJ +06

40m

UTC    dB Audio  Message
045400 +11 2453  W4C DL5XU R-24 (x2)
162115 -12 1346  DA0OIE DL5XU JO50 (x5)
162400 -18 1285  DL5XU DA0OIE +02 (x2)
162445 -15 1344  DA0OIE DL5XU 73
162530 -19 1949  DL5XU F5RRS JN36
074545  -9 2637  SM1NFH/P DL5XU JO50 (x4)

10m

UTC    dB Audio  Message
170415 -15 2191  DL5XU YO4NF -04 (x2)

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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