DD6CS — 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 DD6CS, decoded by SO8OO in southeastern Poland. 564 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 63 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-15.

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 564 FT8 messages attributed to DD6CS as the transmitting token by decoded message structure across 63 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (67%), followed by 40 m (26%) and 10 m (7%). Most decodes (54%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

564

Messages attributed

UTC dates decoded

185

Active 15-min windows

-13 dB

Estimated median S/N

Bands

40m · 145 20m · 380 10m · 39

First attributed message: 2026-06-07
Last attributed message: 2026-09-15 21:08 UTC

Observed FT8 message patterns

Attributed sample: 564 messages
Active dates: 63 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -21.9 to -3.2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 192, moderate (-15 to -9 dB) 223, strong (≥ -8 dB) 149.

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 DD6CS in decoded directed-looking exchanges:

EB3JT · Spain ×2 N8HRZ · United States ×2 RV6HEG · European Russia ×2 CR7CDC · Portugal EC1KV · Spain IQ4JO · Italy IT9CMZ · Sicily LZ3AN · Bulgaria YO4HQF · Romania CT7AGM · Portugal EA5GXE · Spain EA5JLN · Spain

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 DD6CS

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 · 342 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,054 km (approx.)
Last such locator decoded: 2026-09-15 21:08 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	DD6CS S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-15 21:08	40m	0 / -	II4IANT	- / -	2	Partial capture
09-15 21:05	40m	+2 / -	SQ9SET	- / +10	2	Partial capture
09-15 21:03	40m	+4 / -	MM7WQD	- / -	3	✓ Closing fragment
09-15 21:01	40m	-3 / -	VE9TG	- / -13	3	✓ Closing fragment
09-15 20:50	40m	- / -5	II8IHBC	-4 / -	4	Partial capture
09-13 20:29	40m	-4 / -15	RV6HEG	-12 / -4	5	✓ Full exchange observed
09-13 20:23	40m	-1 / -	RK3DSW	- / -10	4	✓ Closing fragment
09-13 20:19	40m	-8 / -	LB8TG	- / 0	3	Partial capture
09-13 20:13	40m	0 / -	MW7HZQ	- / 0	3	✓ Closing fragment
09-11 22:02	40m	-10 / -7	II0IHMG	+4 / -	4	Partial capture
09-11 21:56	40m	-11 / -	EW8AAC	- / -10	4	✓ Closing fragment
09-08 19:32	40m	-14 / -	UC6Y	- / -	2	Partial capture
09-08 19:26	40m	-8 / -	G0WTZ	- / -12	3	✓ Closing fragment
09-06 20:28	40m	- / -18	IZ5IIN	-1 / -	2	✓ Closing fragment
09-06 20:17	40m	-7 / -	IZ5IIN	- / -	3	Partial capture
09-05 21:02	40m	-14 / -	G3PMY	- / -5	4	Partial capture
09-04 21:56	40m	+5 / -	EA8J	- / -12	11	Partial capture
09-04 21:54	40m	-4 / -	LA4IFA	- / +4	2	Partial capture
09-04 05:57	40m	-10 / -	N8HRZ	- / 0	3	✓ Closing fragment
09-04 05:54	40m	-16 / -	LY3I	-10 / -6	4	✓ Closing observed
09-03 21:58	40m	-4 / -	SP2GG	- / -11	3	✓ Closing fragment
08-31 11:04	20m	- / -5	OE3MZC	-1 / -	4	✓ Closing fragment
08-30 11:58	20m	-8 / -	RI1FJL	- / -	3	Partial capture
08-28 06:21	20m	-12 / -	VK4BPK	- / -	2	Partial capture
08-27 21:04	40m	-2 / -	DL7ACA	- / +5	4	Partial capture
08-27 21:01	40m	-4 / -9	DL8MMH	-12 / +2	3	✓ Full exchange observed
08-27 20:59	40m	-8 / -	JA4JKO	- / -	2	Partial capture
08-27 20:55	40m	- / -1	OZ5AGJ	-3 / -	3	✓ Closing fragment
08-24 20:31	40m	-9 / -	G0WTZ	- / -	2	Partial capture
08-24 20:30	40m	-18 / -	M0GDX	- / -6	2	✓ Closing fragment
08-24 14:23	20m	-10 / -	IU8QUR	- / -2	3	Partial capture
08-23 21:15	20m	- / -22	N3HQN	-12 / -	4	Partial capture
08-22 21:44	20m	-18 / -	KF8DEU	- / -	2	Partial capture
08-22 21:30	20m	-12 / -	N1NRL	- / -3	2	Partial capture
08-22 21:16	20m	-8 / -19	W3XOX	-21 / -10	2	Partial capture
08-22 16:16	20m	-10 / -	FR5FK	- / -	4	Partial capture
08-22 15:57	20m	-7 / -	UF3T	- / -	3	Partial capture
08-22 15:51	20m	-12 / -	BG7BVI	- / -	2	Partial capture
08-22 15:47	20m	-10 / -	BG7BVI	- / -	3	Partial capture
08-22 14:52	20m	- / -21	EA5ST	-11 / -	3	✓ Closing fragment
08-22 07:04	20m	- / -15	UA3AIU	-10 / -	3	✓ Closing fragment
08-22 06:49	20m	0 / -	VK4VCC	- / -	5	Partial capture
08-21 21:23	20m	-16 / -	K0BFG	- / -	2	Partial capture
08-21 16:50	10m	-16 / -	PU6PSK	- / -	5	Partial capture
08-21 16:47	10m	-17 / -	PU2PZE	- / -	3	Partial capture
08-21 16:43	10m	-9 / -	CR7CDC	- / +2	4	✓ Closing fragment
08-20 16:39	20m	-11 / -	M0TJX	- / -	2	Partial capture
08-20 16:19	10m	-18 / -	HG1DRC	- / +1	2	Partial capture
08-19 19:02	20m	- / -10	YO3WST	-12 / -	2	✓ Closing fragment
08-19 18:56	20m	- / -1	EA5JLN	-12 / -	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
205230  -6 1128  DD6CS II8IHBC -05 (x2)
205315 -11  372  TK/4O7CC DD6CS R+03
205330  -4 1128  DD6CS RR73; R3FE <...> -12
205645  -3 1721  DD6CS II6IGTO -03
210100  -2  458  VE9TG DD6CS JO31 (x3)
210300  -1  422  MM7WQD DD6CS JO31 (x3)
210545  +2  888  SQ9SET DD6CS JO31 (x2)
210815  +1 1356  II4IANT DD6CS JO31 (x2)

20m

UTC    dB Audio  Message
063315 -12  356  RI1FJL DD6CS JO31
165700  -1 1375  DD6CS F4DXP RR73
072000 -20 1956  VK6DW DD6CS JO31
072845 -17 1956  VK4TMI DD6CS JO31
073300 -16 1197  ZL2BX DD6CS JO31
115815  -7  372  RI1FJL DD6CS JO31 (x3)
181115 -17 1832  DD6CS LA8MGA -17
210015 -14  757  KD3AZO DD6CS JO31
110430  -5 1409  DD6CS OE3MZC -05 (x4)
112645  -9  400  SQ9ONX DD6CS JO31

10m

UTC    dB Audio  Message
161945 -18 1264  HG1DRC DD6CS R+01
164315  -8  939  CR7CDC DD6CS JO31 (x4)
164745 -17 2048  PU2PZE DD6CS JO31 (x3)
164930 -14 1763  LU9ET DD6CS JO31
165030 -12 1315  PU6PSK DD6CS JO31 (x5)
072630 -23 1475  DD6CS UR5EPZ R-07

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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