DC3LC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO54

Receiver-side FT8 activity involving DC3LC, decoded by SO8OO in southeastern Poland. 37 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-19 and 2026-08-18.

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 37 FT8 messages attributed to DC3LC as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (54%), followed by 10 m (46%). In this small sample, the estimated median decoder S/N was -11 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

20m · 20 10m · 17

First attributed message: 2026-07-19
Last attributed message: 2026-08-18 12:37 UTC

Observed FT8 message patterns

Attributed sample: 37 messages
Active dates: 2 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -18 to -7 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 7.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with DC3LC in decoded directed-looking exchanges:

G1JGS · England GW8PSJ · Wales HA3IC · Hungary HA7MRB · Hungary HG2DX · Hungary IK2DDR · Italy R3VE · European Russia UA3WDO · European Russia CR7BRV · Portugal DG0OIK · Fed. Rep. of Germany M3TZX · England M8IYL · England

Most frequent locator attributed to DC3LC

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: JO54 · 15 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 892 km (approx.)
Last such locator decoded: 2026-08-18 12:34 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	DC3LC S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-18 12:36	10m	-10 / -	GW8PSJ	- / -15	2	✓ Closing fragment
08-18 12:30	10m	-10 / -	R3VE	- / -11	2	✓ Closing fragment
08-18 12:28	10m	-6 / -	UA3WDO	- / -3	2	✓ Closing fragment
08-18 12:25	10m	-8 / -	<...>	- / -5	2	Partial capture
08-18 12:23	10m	-12 / -	G1JGS	- / -	2	✓ Closing fragment
08-18 12:08	20m	-9 / -	<...>	- / -20	4	Partial capture
08-18 12:02	20m	-12 / -	DG0OIK	- / -18	5	✓ Closing fragment
08-18 11:57	20m	-10 / -	ES3BH	- / -	4	Partial capture
08-18 11:48	20m	-14 / -	R3NCG	- / -9	2	Partial capture
08-18 11:45	20m	-11 / -	M3TZX	- / -18	3	✓ Closing fragment
08-18 11:43	20m	-17 / -18	CR7BRV	-6 / -	3	✓ Closing observed
07-19 09:46	10m	-19 / -	HA7MRB	- / +6	3	✓ Closing fragment
07-19 09:41	10m	- / -6	IK2DDR	-6 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
095100 -16 1271  RY3DAD DC3LC JO54
100915  -9 1018  DC3LC HA3IC RR73
101100  -5  431  DC3LC HG2DX RR73
121945 -12  726  PY2WRA DC3LC JO54
122315 -10  726  G1JGS DC3LC 73 (x2)
122530 -10  726  <...> DC3LC JO54 (x2)
122830  -8  726  UA3WDO DC3LC R-03 (x2)
123045 -11  726  R3VE DC3LC R-11 (x2)
123400 -11  727  OM0AFM DC3LC JO54
123630  -7  727  GW8PSJ DC3LC R-15 (x2)

20m

UTC    dB Audio  Message
114800 -14  767  R3NCG DC3LC JO54 (x2)
115745 -10  767  ES3BH DC3LC JO54 (x4)
120245 -12  767  DG0OIK DC3LC JO54 (x5)
120830  -8  766  <...> DC3LC R-20 (x4)

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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