DL4KCW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO31

Receiver-side FT8 activity involving DL4KCW, decoded by SO8OO in southeastern Poland. 67 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-26 and 2026-09-01.

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 67 FT8 messages attributed to DL4KCW as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (78%), followed by 10 m (16%) and 20 m (6%). Most decodes (85%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -17 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

40m · 52 20m · 4 10m · 11

First attributed message: 2026-06-26
Last attributed message: 2026-09-01 18:30 UTC

Observed FT8 message patterns

Attributed sample: 67 messages
Active dates: 9 UTC dates
Estimated median S/N: -17 dB
Estimated 10th-90th percentile: -21 to -5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 39, moderate (-15 to -9 dB) 19, strong (≥ -8 dB) 9.

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 DL4KCW in decoded directed-looking exchanges:

CR7BRV · Portugal T77RN · San Marino YN9H · Nicaragua DL1DCT · Fed. Rep. of Germany DL1MKP · Fed. Rep. of Germany F4IBJ · France F8MRQ · France GM3AND · Scotland HF7X · Poland LY4AB · Lithuania MD0RTZ · Isle of Man PD0LBY · Netherlands

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 DL4KCW

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: JO31 · 28 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,054 km (approx.)
Last such locator decoded: 2026-09-01 18:28 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	DL4KCW S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-01 18:30	40m	-4 / -	SN1A	-1 / -	3	✓ Closing observed
09-01 18:27	40m	-5 / 0	SM0NUE	0 / +7	6	✓ Full exchange observed
09-01 18:23	40m	-5 / -	GM3AND	- / -7	3	✓ Closing fragment
09-01 15:40	40m	-13 / -	DL1DCT	-13 / -13	3	✓ Closing observed
09-01 15:39	40m	-11 / 0	PD0LBY	-20 / -	6	✓ Full exchange observed
09-01 15:38	40m	-12 / -	F8MRQ	- / -	2	✓ Closing fragment
09-01 10:54	40m	- / -13	SP9YGD	-6 / -	3	✓ Closing fragment
08-22 14:50	10m	-22 / -	<...>	- / -19	2	Partial capture
08-21 15:04	10m	-20 / -	G8XDD/P	- / -3	2	Partial capture
08-06 10:44	10m	-24 / +2	SM6KKX	-24 / -	4	Partial capture
08-01 20:39	40m	-14 / -	F4IBJ	- / +6	3	✓ Closing fragment
08-01 20:33	40m	-16 / -4	DL70ESSEN	-6 / -	4	Partial capture
08-01 20:26	40m	-18 / -	<...>	- / -	5	Partial capture
08-01 19:26	40m	-18 / -	<...>	- / +5	2	Partial capture
08-01 19:15	40m	-19 / -	TF4WD	- / -11	2	✓ Closing fragment
08-01 19:12	40m	-20 / -	RW6HPS	-21 / -6	3	✓ Closing observed
08-01 19:10	40m	-20 / -	LY4AB	- / -4	2	✓ Closing fragment
08-01 19:09	40m	-19 / -	DL1MKP	-10 / -	2	✓ Closing observed
08-01 19:08	40m	-19 / -	MD0RTZ	- / -3	3	✓ Closing fragment
08-01 19:01	40m	-18 / -1	SP6JIU	+22 / -	3	✓ Full exchange observed
08-01 18:48	40m	-15 / -4	HF7X	-8 / -7	5	✓ Full exchange observed
07-10 18:18	20m	-13 / -	T77RN	-14 / -8	2	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
154130 -13 1932  DL4KCW DL1DCT 73
154145  -9 1372  R1BED DL4KCW R-09
182300  -5 1398  GM3AND DL4KCW JO31 (x3)
182600  -5 1351  SQ8GMW DL4KCW JO31
182745 -10 1879  SM0NUE DL4KCW JO31 (x2)
182900  -4 2622  DL4KCW SM0NUE +00
182915  -2 2268  SM0NUE DL4KCW R+07
182930  +3 2622  DL4KCW SM0NUE RR73
182945  -4 2268  SM0NUE DL4KCW 73
183000  -1 1935  DL4KCW SN1A JO73
183015  -5 2268  SN1A DL4KCW +16 (x2)

20m

UTC    dB Audio  Message
174415 -18 1533  9K2YM DL4KCW JO31
181845 -13 1978  T77RN DL4KCW R-08
181900 -14 2581  DL4KCW T77RN RR73
124800 -19 1738  CR7BRV DL4KCW 73
085315 -16 2165  YN9H DL4KCW 73
085330 -10 1425  DL4KCW IU8JLX -14
091700 -16 1751  DL4KCW F4LEB R-01
092930  -8  527  DL4KCW RI1FJL +00
093030 -12  467  DL4KCW RR73; 9A3GA <...> -10

10m

UTC    dB Audio  Message
113830 -12 2019  LZ4VR DL4KCW JO31
135200  +6  420  DL4KCW GB198KHZ -18
104415 -24 1749  SM6KKX DL4KCW JO31
104600 -24 1654  DL4KCW SM6KKX +02
104615 -24 1749  SM6KKX DL4KCW R+14
104730 -24 1654  DL4KCW SM6KKX -06
143500 -18 2026  SP3WKW DL4KCW R-04
144715 -17 1927  T77RN DL4KCW JO31
150415 -20 1883  G8XDD/P DL4KCW JO31 (x2)
160615 -24 1607  ZA5G DL4KCW JO31
084345 -24 1678  SP8BQL DL4KCW JO31
145045 -19 1847  <...> DL4KCW JO31 (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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