DC8SG — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO40

Receiver-side FT8 activity involving DC8SG, decoded by SO8OO in southeastern Poland. 1,533 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 22 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 1,533 FT8 messages attributed to DC8SG as the transmitting token by decoded message structure across 22 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (42%), followed by 40 m (29%) and 20 m (24%). Most decodes (73%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (86%); the estimated median was +1.9 dB.

Overview

1,533

Messages attributed

UTC dates decoded

120

Active 15-min windows

+1.9 dB

Estimated median S/N

Bands

160m · 44 80m · 642 60m · 2 40m · 441 20m · 367 10m · 37

First attributed message: 2026-06-07
Last attributed message: 2026-09-15 21:37 UTC

Observed FT8 message patterns

Attributed sample: 1,533 messages
Active dates: 22 UTC dates
Estimated median S/N: +1.9 dB
Estimated 10th-90th percentile: -10 to +12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 39, moderate (-15 to -9 dB) 172, strong (≥ -8 dB) 1,322.

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 DC8SG in decoded directed-looking exchanges:

R50RKZ · European Russia ×2 TN8GD · Republic of the Congo ×2 EC5M · Spain ×2 M0MLS · England ×2 RA3LCI · European Russia ×2 RA9SOZ · Asiatic Russia ×2 7Z1BQ · Saudi Arabia EX8ABR · Kyrgyzstan YD9AGP · Indonesia DD0AM · Fed. Rep. of Germany DF6DBF · Fed. Rep. of Germany DO1KKP · Fed. Rep. of Germany

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 DC8SG

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: JO40 · 1,047 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 911 km (approx.)
Last such locator decoded: 2026-09-15 21:36 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	DC8SG S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-15 21:35	40m	-3 / -	TN8GD	- / +2	4	Partial capture
09-15 21:33	40m	-2 / -	BD8FOD	- / -12	5	✓ Closing fragment
09-15 21:27	40m	-8 / -	7Z1BQ	- / -	9	Partial capture
08-26 16:34	20m	- / 0	G3VCQ	+12 / -	2	✓ Closing fragment
08-22 16:31	20m	+12 / -	YB7FII	- / -	11	Partial capture
08-22 16:20	20m	+15 / -	BG0FQU	- / -4	20	Partial capture
08-22 16:04	20m	+15 / -	BI1HJR	- / -9	6	Partial capture
08-22 16:01	20m	+4 / -	BG7ZHS	- / -12	4	✓ Closing fragment
08-22 15:35	20m	+7 / -	YB7FII	- / -	4	Partial capture
08-22 15:14	20m	+13 / -5	A93MO	-10 / -14	9	✓ Full exchange observed
08-22 15:08	20m	+10 / 0	VU3OIP	-16 / -	13	Partial capture
08-22 14:24	20m	+3 / -17	TA3KJ	+2 / -13	10	✓ Full exchange observed
08-20 20:17	20m	+1 / -15	<...>	-22 / -	8	Partial capture
08-17 17:05	20m	-2 / -	F6JON/QRP	- / -	7	Partial capture
08-15 22:17	80m	-1 / -	PC2F	- / -	3	Partial capture
08-15 22:14	80m	-2 / -3	I3WXX	-22 / -7	6	✓ Full exchange observed
08-15 22:09	80m	+8 / -17	R6ZEJ	-3 / -	7	✓ Closing observed
08-15 22:08	80m	+1 / -3	R50RKZ	-6 / -4	5	✓ Full exchange observed
08-15 22:06	80m	-6 / -14	TA3GO	-19 / -	4	✓ Closing observed
08-15 22:02	80m	0 / -	DK1TBL	-10 / +3	7	✓ Full exchange observed
08-15 22:00	80m	+2 / -1	R50RKZ	-11 / -4	3	Partial capture
08-15 21:58	80m	+3 / +3	DA6CGN	-23 / -1	6	✓ Full exchange observed
08-15 21:56	80m	+10 / -	EA3IJQ	- / -10	4	✓ Closing fragment
08-15 21:55	80m	- / -10	TA7ARH	+2 / -	2	✓ Closing fragment
08-15 21:52	80m	- / -8	EU6AF	-13 / -	2	✓ Closing fragment
08-15 21:49	80m	+6 / -	HB9AKB	-10 / +5	5	✓ Full exchange observed
08-15 21:43	80m	+14 / -	EN100NP	- / -	6	Partial capture
08-15 21:39	80m	+6 / -9	UT6HN	+6 / -9	5	✓ Full exchange observed
08-15 21:38	80m	+5 / -3	EW8AAC	-4 / -10	4	✓ Full exchange observed
08-15 21:36	80m	-3 / -13	UA3RLE	-4 / -11	5	✓ Full exchange observed
08-15 21:32	80m	0 / -	EN100NP	- / -	8	Partial capture
08-15 01:16	80m	+5 / -	WB2AA	- / -	4	Partial capture
08-15 01:07	80m	+3 / +1	EA7LIC	-24 / -4	18	Partial capture
08-15 01:05	80m	+1 / -	K9BAW	- / -10	4	✓ Closing fragment
08-15 00:59	80m	+8 / -	RN3YN	- / -	12	Partial capture
08-15 00:53	80m	+3 / -	W3DQS	- / -	10	Partial capture
08-15 00:52	80m	-6 / -8	OZ0Q/LH	-8 / +2	3	Partial capture
08-15 00:48	80m	-11 / -	KE4SCJ	- / -	3	Partial capture
08-15 00:42	80m	-3 / -14	DK0RA/LH	+3 / 0	8	Partial capture
08-15 00:35	80m	0 / -	W4SH	- / -	11	Partial capture
08-15 00:33	80m	+11 / +1	YO1BRANCUSI	+8 / -	2	Partial capture
08-15 00:32	80m	+9 / +7	OH7FES	-7 / -9	5	✓ Full exchange observed
08-15 00:28	80m	+8 / -	<...>	- / -11	7	Partial capture
08-15 00:23	80m	+8 / -	W4SH	- / -11	10	Partial capture
08-14 16:02	20m	-11 / -	<...>	- / -13	5	Partial capture
08-14 16:00	20m	0 / -	XU7O	- / -10	2	Partial capture
08-14 15:54	20m	-2 / -	<...>	- / -13	10	Partial capture
08-14 15:42	20m	-8 / -	ES3TI/0	- / -12	12	Partial capture
08-14 15:40	20m	-13 / -	A65JR	- / -16	4	✓ Closing fragment
08-14 15:34	20m	-10 / -	BG0FQU	- / -	9	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
213015 -13 1201  7Z1BQ DC8SG JO40 (x6)
213315  -2  981  BD8FOD DC8SG JO40 (x5)
213545  +1  594  TN8GD DC8SG JO40 (x4)

20m

UTC    dB Audio  Message
163045 +15 2396  BG0FQU DC8SG R-04
163115  +8 2396  YB7FII DC8SG JO40 (x11)
163400 +12 1844  DC8SG G3VCQ +00 (x2)
163630 -10 1512  DC8SG EX7DY RR73

80m

UTC    dB Audio  Message
221030  -2  724  DC8SG R6ZEJ -17 (x2)
221115  +1  805  R6ZEJ DC8SG 73
221130  +0  723  DC8SG R6ZEJ RR73 (x3)
221415  -4 1669  I3WXX DC8SG JO40 (x3)
221530 -24 2117  DC8SG I3WXX -03
221545  -1 1669  I3WXX DC8SG R-07
221600 -20 2117  DC8SG I3WXX RR73
221700  +1 1110  PC2F DC8SG JO40 (x3)

60m

UTC    dB Audio  Message
221645 -19 1224  EB5RCA DC8SG JO40 (x2)

10m

UTC    dB Audio  Message
115915  +4 1843  EX8ABR DC8SG JO40 (x4)
123315  -5 1643  YC3LWO DC8SG JO40 (x4)
125845 -10  993  YG2AUD DC8SG JO40 (x5)
152730  -4  803  DC8SG R50RKZ +08 (x2)

160m

UTC    dB Audio  Message
225400 -13 1861  OK1HEH DC8SG JO40 (x2)
212730 -24 1726  CQ DC8SG JO40
231045 -12 1499  TM25TFR DC8SG JO40 (x2)
232045 -16 1496  7Z1DH DC8SG JO40
230945  -3  500  DD0AM DC8SG JO40 (x2)
231030  -1  500  DC8SG DD0AM RR73
231045  -2  500  DD0AM DC8SG 73
231130  -9 1571  SP6LUV DC8SG JO40
231145 +13 1571  DC8SG SP6LUV +00
231200  -9 1571  SP6LUV DC8SG R+01
231215 +13 1571  DC8SG SP6LUV RR73
231230 -13 1571  SP6LUV DC8SG 73

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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