DL7DC — 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: JN39

Receiver-side FT8 activity involving DL7DC, decoded by SO8OO in southeastern Poland. 44 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-18 and 2026-08-20.

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 44 FT8 messages attributed to DL7DC 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 (100%). In this small sample, the estimated median decoder S/N was -1 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-1 dB

Estimated median S/N

Bands

20m · 44

First attributed message: 2026-08-18
Last attributed message: 2026-08-20 20:28 UTC

Observed FT8 message patterns

Attributed sample: 44 messages
Active dates: 2 UTC dates
Estimated median S/N: -1 dB
Estimated 10th-90th percentile: -10 to +2 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 34.

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 DL7DC in decoded directed-looking exchanges:

BA3NZ · China BG4UCZ · China R4FDW · European Russia VK2ZR · Australia VR2VOG · Hong Kong XU7O · Cambodia

Most frequent locator attributed to DL7DC

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: JN39 · 18 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,063 km (approx.)
Last such locator decoded: 2026-08-20 20:24 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	DL7DC S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-20 20:28	20m	- / -9	YO4NF	+6 / -	2	Partial capture
08-20 20:24	20m	-3 / -	XU7O	- / -18	3	✓ Closing fragment
08-20 20:20	20m	- / -10	<...>	-16 / -	2	Partial capture
08-20 20:18	20m	+3 / -	R4FDW	- / -14	5	✓ Closing fragment
08-20 20:15	20m	+2 / -8	BA3NZ	-11 / -8	4	✓ Full exchange observed
08-20 20:12	20m	0 / -	BG4UCZ	- / -11	4	✓ Closing fragment
08-18 15:07	20m	-7 / -	BG0DAP	- / -13	3	Partial capture
08-18 15:06	20m	-8 / -	UR5XEJ	- / -6	2	Partial capture
08-18 15:04	20m	+2 / -	SM2SCK	- / -6	2	Partial capture
08-18 15:02	20m	-1 / -	VR2VAZ	- / -15	2	Partial capture
08-18 15:00	20m	-1 / -	BH4ECL	- / -17	3	Partial capture
08-18 14:57	20m	-5 / -	VR2VOG	- / -15	4	✓ Closing fragment
08-18 14:49	20m	-6 / -	VK2ZR	- / -13	3	✓ Closing fragment
08-18 14:22	20m	-14 / -	BU2FW	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
201630 -11  719  DL7DC BA3NZ -08
201645  +2  456  BA3NZ DL7DC R-08 (x2)
201815  +7  456  R4FDW DL7DC R-14 (x3)
202000 -15 1764  DL7DC <...> -10
202015  +6  456  R4FDW DL7DC JN39
202030 -17 1764  DL7DC <...> -15
202045  +1  456  R4FDW DL7DC R-16
202445  -6  456  XU7O DL7DC JN39 (x3)
202830  +6  830  DL7DC YO4NF -09 (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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