DC4DI — 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: JO41

Receiver-side FT8 activity involving DC4DI, decoded by SO8OO in southeastern Poland. 109 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-09-08 and 2026-11-04.

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 109 FT8 messages attributed to DC4DI as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (55%), followed by 80 m (30%) and 60 m (8%). Most decodes (84%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (72%); the estimated median was 0 dB.

Overview

109

Messages attributed

UTC dates decoded

Active 15-min windows

0 dB

Estimated median S/N

Bands

160m · 7 80m · 33 60m · 9 40m · 60

First attributed message: 2026-09-08
Last attributed message: 2026-11-04 16:33 UTC

Observed FT8 message patterns

Attributed sample: 109 messages
Active dates: 5 UTC dates
Estimated median S/N: 0 dB
Estimated 10th-90th percentile: -16 to +10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 18, strong (≥ -8 dB) 79.

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 DC4DI in decoded directed-looking exchanges:

DO1BWO · Fed. Rep. of Germany PA3FR · Netherlands RU3XK · European Russia AN5CV · Spain CN8NS · Morocco DA0M · Fed. Rep. of Germany DH2NJS · Fed. Rep. of Germany EX7CQ · Kyrgyzstan F6FHZ · France G8IXM · England GM6URC · Scotland II5GG · Italy

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 DC4DI

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: JO41 · 35 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 916 km (approx.)
Last such locator decoded: 2026-11-04 16:29 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	DC4DI S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-04 16:29	80m	-12 / -	UA9LLE	- / -21	9	✓ Closing fragment
11-04 16:25	80m	+1 / -	VK6EI	- / -	3	Partial capture
11-04 11:49	40m	-18 / -	M7DQO	- / -6	3	Partial capture
11-04 11:49	40m	- / -	DL9KM	-10 / -	7	Partial capture
11-04 11:47	40m	- / -	DM5ME	-16 / -	4	Partial capture
11-04 11:47	40m	-12 / -7	UT3RO	-16 / -22	5	✓ Full exchange observed
11-04 11:45	40m	-17 / -	G8IXM	- / 0	2	✓ Closing fragment
11-04 11:43	40m	- / -	DM5ME	-9 / -	4	Partial capture
11-04 11:43	40m	- / -	PD0IFI	-16 / -	3	Partial capture
11-04 11:42	40m	-20 / +6	DH2NJS	-15 / +7	5	✓ Full exchange observed
11-04 11:40	40m	-17 / -	M7CYY	- / -16	4	✓ Closing fragment
11-04 11:36	40m	- / -	PD0IFI	-14 / -	4	Partial capture
11-04 11:36	40m	-14 / -	GM6URC	- / -7	3	✓ Closing fragment
10-13 14:59	40m	0 / -	II5GG	-20 / 0	5	✓ Full exchange observed
10-13 14:57	40m	-2 / -	R4YF	- / -	3	Partial capture
10-13 14:56	40m	-6 / -	DA0M	-12 / -1	3	✓ Closing observed
10-13 14:53	40m	- / -	DJ0MAB	-7 / -	3	Partial capture
10-13 14:52	40m	+2 / -5	YO3GJE	-14 / -7	4	✓ Full exchange observed
10-13 14:46	40m	+16 / -	R8CKV	- / -	3	Partial capture
10-09 18:58	80m	+5 / -	UN0GY	- / -20	5	✓ Closing fragment
10-09 18:16	40m	+3 / -	VU3OSA	- / -14	7	✓ Closing fragment
10-09 18:12	40m	-3 / -	UR9QQ	- / -21	2	✓ Closing fragment
10-09 18:10	40m	+2 / -	R3PE	- / -11	2	✓ Closing fragment
10-09 18:09	40m	+2 / -	RC5F	- / -14	2	✓ Closing fragment
10-09 18:08	40m	-4 / -	RX9ABI	- / -10	2	✓ Closing fragment
10-09 18:06	40m	+2 / -	CN8NS	-14 / -14	4	✓ Closing observed
10-09 18:02	40m	+4 / -	EY7BM	- / -	3	Partial capture
10-09 18:00	40m	+6 / -	F6FHZ	- / -7	2	✓ Closing fragment
10-09 17:59	40m	+2 / -	AN5CV	- / -16	2	✓ Closing fragment
10-09 17:44	40m	+4 / -	VU3OSA	- / -	2	Partial capture
10-09 17:38	40m	+3 / -	EX7CQ	-5 / -3	2	✓ Closing observed
10-08 19:41	60m	-3 / -	M0SSK	- / +3	2	✓ Closing fragment
10-08 19:41	60m	-5 / -10	DJ7YP	-16 / -	4	✓ Closing observed
10-08 19:39	60m	-8 / -	DD6ZV	-1 / -	5	✓ Full exchange observed
10-08 19:39	60m	- / -	G0AZH	-8 / -	2	Partial capture
10-08 19:37	60m	+8 / -1	DF7RG	-2 / +8	4	✓ Full exchange observed
10-08 18:39	80m	+6 / -	SV1DKR	- / -8	3	✓ Closing fragment
09-08 18:58	160m	- / +2	PA3FR	-8 / -	2	✓ Closing fragment
09-08 18:57	160m	-15 / -	DO1BWO	- / -16	2	✓ Closing fragment
09-08 18:53	160m	-7 / -23	RU3XK	-3 / -18	8	✓ Full exchange observed
09-08 18:49	80m	+12 / -3	DD7EE	+1 / -	7	✓ Full exchange observed
09-08 18:49	80m	+6 / -6	UA4FKT	+5 / -5	5	✓ Full exchange observed
09-08 18:47	80m	+12 / -	RC9WC	- / -15	3	✓ Closing fragment
09-08 18:46	80m	- / -	DD7EE	-4 / -	2	Partial capture
09-08 18:44	80m	+8 / -15	RK6OQ	+8 / -10	5	✓ Full exchange observed
09-08 18:42	80m	+9 / -7	UR4LRG	+14 / +5	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
185900  +7 1297  UN0GY DC4DI JO41 (x3)
162530  +0 1899  VK6EI DC4DI JO41 (x3)
162915 -10 1898  UA9LLE DC4DI JO41 (x9)

40m

UTC    dB Audio  Message
114845 -11 1936  UT3RO DC4DI 73
114900  -1 1595  DC4DI OE3RWR JN88
114900 -12 1465  DC4DI DL9KM JN68
114915 -21 1686  DC4DI DM5ME JO52
114930 -17 1465  DC4DI DL9KM JN68
114945 -16 1936  M7DQO DC4DI -06
114945 -18 1685  DC4DI DM5ME JO52
115000  -6 1465  DC4DI DL9KM JN68
115015 -22 1937  M7DQO DC4DI -06
115030  -9 1465  DC4DI DL9KM JN68
115045 -16 1936  M7DQO DC4DI -06
115100  -5 1465  DC4DI DL9KM JN68
115130  -2 1595  DC4DI OE3RWR JN88
115130  -7 1465  DC4DI DL9KM JN68 (x2)

60m

UTC    dB Audio  Message
193945  -6  638  DC4DI G0AZH IO83
193945  -3 1871  DC4DI DD6ZV JO62
194000  -8 1871  DD6ZV DC4DI +13
194015 -10  637  DC4DI G0AZH IO83
194015  +0 1871  DC4DI DD6ZV R+11
194030  -7 1871  DD6ZV DC4DI RR73
194045  -1 1871  DC4DI DD6ZV 73
194115 -21 1851  DC4DI DJ7YP JO42
194130  -4 1871  M0SSK DC4DI +03 (x2)
194245 -14 2414  DC4DI DJ7YP JO42 (x2)
194330  -5 1871  DJ7YP DC4DI RR73
194745  -4 1871  TA4SSK DC4DI JO41
195000 -13  928  DC4DI TA4SSK -13

160m

UTC    dB Audio  Message
185330  -6 2320  RU3XK DC4DI JO41 (x2)
185415  -3 1655  DC4DI RU3XK -23
185430  -7 2320  RU3XK DC4DI R-18
185445  -3 1655  DC4DI RU3XK -23
185500  -6 2320  RU3XK DC4DI R-18
185545  -2 1655  DC4DI RU3XK RR73
185600 -10 2320  RU3XK DC4DI 73
185700 -17 2320  DO1BWO DC4DI -16 (x2)
185815  -9  652  DC4DI PA3FR +02 (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.

CW

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

Explore CW reception at SO8OO

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