DL5CK — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO52

Receiver-side FT8 activity involving DL5CK, decoded by SO8OO in southeastern Poland. 1,663 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 59 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-22.

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 1,663 FT8 messages attributed to DL5CK as the transmitting token by decoded message structure across 59 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (42%), followed by 160 m (19%) and 60 m (18%). Most decodes (56%) fell within the six-hour window 00:00-06:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (69%); the estimated median was -4.6 dB.

Overview

1,663

Messages attributed

UTC dates decoded

193

Active 15-min windows

-4.6 dB

Estimated median S/N

Bands

160m · 320 80m · 698 60m · 305 40m · 227 20m · 86 10m · 27

First attributed message: 2026-06-08
Last attributed message: 2026-10-22 23:55 UTC

Observed FT8 message patterns

Attributed sample: 1,663 messages
Active dates: 59 UTC dates
Estimated median S/N: -4.6 dB
Estimated 10th-90th percentile: -15 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 139, moderate (-15 to -9 dB) 371, strong (≥ -8 dB) 1,153.

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 DL5CK in decoded directed-looking exchanges:

R5AV · European Russia ×3 F5LMJ · France ×3 SP5DFK · Poland ×3 DF0PDF · Fed. Rep. of Germany ×2 DL6MRM · Fed. Rep. of Germany ×2 G7RAU · England ×2 R2EA/P · European Russia ×2 RM3ZR · European Russia ×2 SQ9PBV · Poland ×2 M0GDX · England ×2 SV1DKR · Greece ×2 9A2TN · Croatia ×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 DL5CK

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: JO52 · 912 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 803 km (approx.)
Last such locator decoded: 2026-10-22 23:54 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	DL5CK S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 00:00	40m	- / -2	EA5FD	-9 / -	2	Partial capture
10-22 23:54	80m	+6 / +4	SP5UAF	-11 / -4	5	✓ Full exchange observed
10-22 23:35	80m	-12 / -	HA7UL	+4 / +7	3	✓ Closing observed
10-22 23:30	80m	-9 / -	M7FSE	- / -	2	Partial capture
10-21 04:09	80m	+4 / -	W5UHQ	- / -	4	Partial capture
10-21 04:05	80m	0 / -	9A60CBM	- / -14	2	Partial capture
10-19 05:09	80m	+2 / -14	YO4CPO	-14 / -7	4	✓ Full exchange observed
10-19 05:07	80m	-10 / -6	F1IQH	-12 / -13	5	✓ Full exchange observed
10-19 05:03	80m	-5 / -	DO1SPK	-10 / -18	4	✓ Closing observed
10-19 05:03	80m	-3 / -11	PA0MUS	-4 / -6	6	✓ Full exchange observed
10-17 04:46	40m	-14 / -19	E75W	-10 / -17	4	✓ Full exchange observed
10-17 04:43	80m	0 / -2	LY5A	+17 / +3	5	✓ Full exchange observed
10-16 19:14	80m	-8 / -	DK1HSI	- / -6	3	✓ Closing fragment
10-16 19:12	80m	-6 / -	ON5MX	- / -9	2	✓ Closing fragment
10-16 19:01	80m	-6 / -	DL1DY	- / -7	2	Partial capture
10-16 19:00	80m	0 / -	I/KF0SPC	- / -18	3	Partial capture
10-16 17:32	80m	-7 / -	II4NTTI	- / -15	2	Partial capture
10-16 16:25	80m	-11 / -22	UA1CKA	+3 / -2	6	✓ Full exchange observed
10-16 13:01	40m	-10 / -2	HG0NPJ	-2 / +2	5	✓ Full exchange observed
10-16 01:11	160m	-12 / -	R6DAZ	- / -	2	Partial capture
10-16 01:08	160m	-14 / -3	DK2EU	+3 / +5	3	✓ Full exchange observed
10-16 00:46	80m	- / -3	LY7T	+14 / -	2	✓ Closing fragment
10-16 00:44	80m	- / -17	Z61DX	+8 / -	2	✓ Closing fragment
10-16 00:41	80m	-4 / -19	UN0GY	-10 / -11	6	✓ Full exchange observed
10-16 00:33	60m	0 / -18	9A2TN	-4 / +2	5	✓ Full exchange observed
10-16 00:30	60m	+1 / -	N3CXV	- / -9	3	✓ Closing fragment
10-16 00:26	60m	-2 / -	A92AE	- / -	3	Partial capture
10-16 00:24	60m	-4 / -	8Q7PR	- / -	3	Partial capture
10-16 00:19	60m	-8 / -	8Q7PR	- / -	4	Partial capture
10-16 00:14	60m	-6 / -	A92AE	- / -	7	Partial capture
10-16 00:11	60m	-6 / -	VP2MAW	- / -21	2	Partial capture
10-16 00:09	60m	-12 / -	VA3DIF	- / -1	2	✓ Closing fragment
10-16 00:06	60m	-8 / -13	DL1OBF	+5 / -3	5	✓ Full exchange observed
10-16 00:03	60m	-6 / -	VP2MAW	- / -	3	Partial capture
10-16 00:02	60m	-6 / -	IN3IZQ	- / -	2	Partial capture
10-15 23:59	60m	-9 / -	MM0HVU	- / -	2	Partial capture
10-15 06:09	60m	-5 / +6	OT4N	-14 / -	5	✓ Full exchange observed
10-15 06:07	60m	-4 / -	EC3A	- / -19	2	✓ Closing fragment
10-15 06:06	60m	-1 / +3	F4VWK	+8 / -	5	✓ Full exchange observed
10-15 06:04	60m	-8 / -	IK1WGX	- / -9	3	✓ Closing fragment
10-15 06:00	60m	-10 / -	DF4BJ	- / -13	3	✓ Closing fragment
10-15 05:59	60m	-8 / -	EA5HM	- / -	2	Partial capture
10-15 05:56	60m	-7 / -	HB9DWR	- / -7	3	✓ Closing fragment
10-15 05:55	60m	-5 / -3	YT2ZE	-8 / -4	5	✓ Full exchange observed
10-15 05:53	60m	-1 / 0	G0ABI	+4 / 0	6	✓ Full exchange observed
10-15 05:52	60m	-2 / -15	M0GDX	-17 / 0	5	✓ Full exchange observed
10-13 01:25	80m	-7 / -15	DL/AD2LX	+10 / -10	5	Partial capture
10-13 01:22	80m	-6 / -7	EA2EWL	-10 / -2	5	✓ Full exchange observed
10-13 01:16	80m	-2 / -	R9AL	- / -	2	Partial capture
10-13 01:12	60m	- / -14	HA7TM	-10 / -	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
041345  -2 1853  DL5CK LZ936BA -16
060215  -3 2399  PY2DPM DL5CK JO52 (x3)
130145 -14 2305  HG0NPJ DL5CK JO52
130200  +0 2378  DL5CK HG0NPJ -02
130215 -10 2306  HG0NPJ DL5CK R+02
130230  -4 2378  DL5CK HG0NPJ RR73
130245  -6 2306  HG0NPJ DL5CK 73
044645 -13 2254  E75W DL5CK JO52
044730 -11 2401  DL5CK E75W -19
044745 -15 2254  E75W DL5CK R-17
044800 -10 2401  DL5CK E75W RR73
000045  -2 2727  DL5CK EA5FD IM99 (x2)

80m

UTC    dB Audio  Message
233445 -18 2254  CQ DL5CK JO52
233515 -14 2254  HA7UL DL5CK +07 (x2)
233600  +4  912  DL5CK HA7UL 73
233645 -11 2254  CQ DL5CK JO52 (x3)
234045  -1 2254  M7FSE DL5CK JO52
234230 +10 2535  SP5UAF DL5CK JO52
234315  +0 2535  M7FSE DL5CK JO52
235430  +5 1337  SP5UAF DL5CK JO52
235445 -12 1246  DL5CK SP5UAF +04
235500  +8 1337  SP5UAF DL5CK R-04
235515 -10 1246  DL5CK SP5UAF RR73
235530  +6 1337  SP5UAF DL5CK 73

160m

UTC    dB Audio  Message
005530 -14 1423  DL5CK R4FJ R-18
005545  -5 1423  R4FJ DL5CK RR73
005600 -18 1423  DL5CK R4FJ 73
005615  -8 1423  CQ DL5CK JO52 (x2)
005730  -4 1423  UN0GY DL5CK JO52 (x3)
010700 -12 1963  CQ DL5CK JO52                         a1 (x2)
010800 -14 1962  DK2EU DL5CK +05
010815  +4 1962  DL5CK DK2EU R-03 (x2)
011115  -8 1692  R6DAZ DL5CK JO52 (x2)

60m

UTC    dB Audio  Message
002115  -9 2168  8Q7PR DL5CK JO52 (x4)
002615  -1 1268  A92AE DL5CK JO52 (x3)
003000  +1 2631  N3CXV DL5CK JO52 (x3)
003330  -1 2631  9A2TN DL5CK JO52
003345  -5  497  DL5CK 9A2TN -18
003400  +0 2631  9A2TN DL5CK R+02
003415  -4  497  DL5CK 9A2TN RR73
003430  +2 2631  9A2TN DL5CK 73

10m

UTC    dB Audio  Message
193400  -4  822  DL5CK GJ0KYZ +02 (x2)
064600 -10 1180  DL5CK A71UN RR73
073115  -8 2364  YT9WW DL5CK JO52 (x4)
073600  -8 2223  OD5VB DL5CK JO52 (x4)
074000  -6 2223  IK4JPP DL5CK -13 (x2)

20m

UTC    dB Audio  Message
061845 -15 2427  NP3RK DL5CK JO52
040200  +1  412  DL5CK RM4HX -20 (x2)
040630 -24 1945  DL5CK A41KB -23 (x3)
062715  -2  461  DL5CK <...> -14
062745  +1 1855  RI1FJL DL5CK JO52 (x3)
063230  -2 1855  <...> DL5CK R-12 (x5)

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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