DK0SD — 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: JN48

Receiver-side FT8 activity involving DK0SD, decoded by SO8OO in southeastern Poland. 493 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 16 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-17.

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 493 FT8 messages attributed to DK0SD as the transmitting token by decoded message structure across 16 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (48%), followed by 80 m (40%) and 10 m (8%). Most decodes (67%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (89%); the estimated median was +2 dB.

Overview

493

Messages attributed

UTC dates decoded

Active 15-min windows

+2 dB

Estimated median S/N

Bands

80m · 195 40m · 19 20m · 238 10m · 41

First attributed message: 2026-06-08
Last attributed message: 2026-10-17 16:15 UTC

Observed FT8 message patterns

Attributed sample: 493 messages
Active dates: 16 UTC dates
Estimated median S/N: +2 dB
Estimated 10th-90th percentile: -9 to +9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 46, strong (≥ -8 dB) 441.

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 DK0SD in decoded directed-looking exchanges:

BG7BVI · China ×2 JF1UVJ · Japan ×2 CS8ABF · Azores JA3KGF · Japan JK3DGX · Japan VU2ORO · India YL2GJX · Latvia 4S6ARW · Sri Lanka 6K2MAS · Republic of Korea BA3QIQ · China BD1ANO · China BD6IIC · China

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 DK0SD

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: JN48 · 234 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 941 km (approx.)
Last such locator decoded: 2026-10-17 16:15 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	DK0SD S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-17 16:13	40m	+2 / -	F4BJN	- / +1	2	✓ Closing fragment
10-17 16:10	40m	+1 / +10	OS4K	-19 / -6	4	✓ Full exchange observed
10-08 16:27	80m	-6 / -	OM2WW	- / -	2	Partial capture
10-08 16:24	80m	-7 / -	DH5HS	- / +1	2	✓ Closing fragment
10-08 16:20	80m	- / -	DC2SF	-7 / -	3	✓ Closing fragment
10-08 16:16	80m	+6 / -	UN0GY	- / -14	4	Partial capture
10-08 16:12	80m	+2 / -	DL4MBY	- / -20	2	✓ Closing fragment
10-08 16:12	80m	+6 / -6	RK6OQ	-8 / -7	9	✓ Full exchange observed
10-08 16:08	80m	+2 / +9	DA6NEL	-3 / +9	5	✓ Full exchange observed
10-08 16:05	80m	+4 / -3	OK3NKO	-8 / +7	3	✓ Full exchange observed
10-08 16:03	80m	-6 / -	DO2ZZ	-16 / +2	4	✓ Full exchange observed
10-08 15:58	80m	-2 / -	DO6KGS	- / -23	5	✓ Closing fragment
10-08 15:56	80m	-1 / +2	DO7MRC	-18 / -9	6	✓ Full exchange observed
10-08 15:56	80m	-2 / -3	DO2MOG	-24 / -13	5	✓ Full exchange observed
10-08 15:54	80m	+1 / +9	OM3WFH	+11 / -2	5	✓ Full exchange observed
10-08 15:49	80m	-10 / -	DO8JB	-22 / -16	6	Partial capture
10-08 15:46	80m	-10 / +9	DJ2TI	-1 / -	5	✓ Full exchange observed
10-08 15:43	80m	-8 / 0	DL7UKM	-12 / +1	4	✓ Full exchange observed
09-22 15:05	80m	-6 / -	DL0HAM	+1 / -4	4	✓ Full exchange observed
09-21 16:45	80m	-4 / -	F5LMG	- / -9	2	✓ Closing fragment
09-21 16:43	80m	- / -4	OE5DML	+3 / -	3	✓ Closing fragment
08-31 15:51	20m	0 / -	BG7BVP	- / -11	3	✓ Closing fragment
08-29 20:18	20m	0 / -	HA7TJ	- / +1	2	Partial capture
08-29 13:31	20m	- / -	SV5BYP	-2 / -	3	Partial capture
08-29 07:10	20m	+12 / -	RW6HP	- / -	2	✓ Closing fragment
08-22 17:55	20m	+7 / -	JG1PFJ	- / -19	3	✓ Closing fragment
08-22 17:54	20m	+8 / -	BA3QIQ	- / -18	2	✓ Closing fragment
08-22 17:43	20m	-1 / -	OZ9TAN	- / +5	3	✓ Closing fragment
08-22 17:34	20m	-1 / -5	JG1IPZ	-17 / +6	3	✓ Full exchange observed
08-22 17:32	20m	+1 / -	BA5AN	- / -10	4	Partial capture
08-22 17:30	20m	+4 / -	JA9ELE	- / -3	2	✓ Closing fragment
08-22 17:28	20m	+3 / -	BG2GWN	- / -6	3	✓ Closing fragment
08-22 17:26	20m	+6 / -	BG8HNC	- / -9	3	✓ Closing fragment
08-22 13:14	20m	+10 / -	JA8EDN	- / -	3	Partial capture
08-22 13:13	20m	- / -	PD0PWH	-9 / -	2	Partial capture
08-22 13:12	20m	- / -	OE1AVO	+1 / -	2	Partial capture
08-22 10:05	10m	-11 / -	YL2GJX	- / +10	2	✓ Closing fragment
08-22 09:47	10m	-12 / -	VU2ORO	- / -9	2	✓ Closing fragment
08-22 09:44	10m	-12 / -	JA3KGF	- / +3	2	✓ Closing fragment
08-21 22:50	20m	+5 / -15	DL3MIB	+5 / -5	8	✓ Full exchange observed
08-21 22:48	20m	+4 / -	OZ1LAV	- / -4	3	✓ Closing fragment
08-21 22:46	20m	0 / -	JR2PMT	- / -9	2	✓ Closing fragment
08-21 22:44	20m	+7 / -	IZ8EYN	- / -9	2	✓ Closing fragment
08-21 22:42	20m	+5 / -	VA3ZJB	- / -25	3	Partial capture
08-21 22:36	20m	+14 / -	BA8BLK	- / -21	2	Partial capture
08-21 22:32	20m	+6 / -	6K5BXQ	- / -25	6	Partial capture
08-21 22:27	20m	+4 / -	JA8JLC	- / -8	2	✓ Closing fragment
08-21 22:27	20m	- / -	DL3MIB	+10 / -	7	Partial capture
08-21 22:20	20m	- / -10	R4FDW	-23 / -	3	Partial capture
08-21 22:17	20m	- / -	KB3DQI	-20 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
160815  -3 1622  CQ DK0SD JN48                         a1 (x3)
161030 -19 1681  DK0SD OS4K +10
161100  +2  852  M7IUN DK0SD JN48
161145  -1  852  OS4K DK0SD R-06 (x3)
161315  +2  852  CQ DK0SD JN48
161345  -2  852  F4BJN DK0SD +01 (x2)
161445  +3  852  CQ DK0SD JN48 (x2)
161530  -4  851  DK0SD R2PX KO93

80m

UTC    dB Audio  Message
161600  +6 1269  CQ DK0SD JN48
161630  +5 2302  UN0GY DK0SD JN48 (x4)
162015 -11 2303  DK0SD DC2SF JN58 (x3)
162300  +6 2302  CQ DK0SD JN48 (x2)
162430  -6 1310  DH5HS DK0SD +01 (x2)
162700  -8 1156  OM2WW DK0SD JN48 (x2)
162800  -4 1156  CQ DK0SD JN48

20m

UTC    dB Audio  Message
104100  -8 1676  DK0SD LA3DRA JP50
070900  +4 1346  CQ DX DK0SD JN48 (x2)
071030  +7 1346  RW6HP DK0SD RR73 (x2)
133115  -1 1879  DK0SD SV5BYP KM46 (x3)
201800  -2 1379  HA7TJ DK0SD +01 (x2)
155045  -4 1767  CQ DX DK0SD JN48
155115  -5 1767  BG7BVP DK0SD -11 (x3)
155230  -4 1572  DK0SD IU8JLX -12

10m

UTC    dB Audio  Message
095845 -11 1503  CQ DX DK0SD JN48 (x3)
100015  -7 1503  GM3DGD DK0SD +08
100115  -8 1503  CQ DX DK0SD JN48 (x5)
100345  -8 1503  GM3DGD DK0SD JN48
100415  -9 1502  CQ DK0SD JN48 (x2)
100515 -10 1502  YL2GJX DK0SD +10 (x2)
113115 -19 1078  DK0SD CS8ABF RR73

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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