DD6ULF — 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: JO62

Receiver-side FT8 activity involving DD6ULF, decoded by SO8OO in southeastern Poland. 18 FT8 messages attributed to this token as transmitter, on 60m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-09 and 2026-08-25.

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 18 FT8 messages attributed to DD6ULF 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 (89%), followed by 60 m (11%). In this small sample, the estimated median decoder S/N was -9 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

60m · 2 20m · 16

First attributed message: 2026-08-09
Last attributed message: 2026-08-25 19:47 UTC

Observed FT8 message patterns

Attributed sample: 18 messages
Active dates: 2 UTC dates
Estimated median S/N: -9 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 9.

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 DD6ULF in decoded directed-looking exchanges:

DF6QN · Fed. Rep. of Germany DK5WL · Fed. Rep. of Germany DK7ZT · Fed. Rep. of Germany DL5ASK · Fed. Rep. of Germany HA7TM · Hungary

Most frequent locator attributed to DD6ULF

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: JO62 · 9 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 675 km (approx.)
Last such locator decoded: 2026-08-25 19:47 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	DD6ULF S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-25 20:17	60m	- / -5	DK7ZT	-15 / -	3	✓ Closing fragment
08-25 20:15	60m	- / -11	9A4ZM	-3 / -	8	Partial capture
08-25 20:09	60m	- / -13	DK5WL	-2 / -	5	✓ Closing fragment
08-25 20:09	60m	- / -21	ON7KEI	-17 / -	2	Partial capture
08-25 20:06	60m	- / -16	DF6QN	-5 / -	4	✓ Closing fragment
08-25 20:05	60m	- / -	ON7KEI	-19 / -	3	Partial capture
08-25 20:05	60m	- / -18	HA7TM	+7 / -	5	✓ Closing fragment
08-25 19:50	60m	- / -	DK2MAX	-6 / -	2	Partial capture
08-25 19:50	60m	- / -	SP9UPH	+2 / -	3	Partial capture
08-25 19:48	60m	- / -	G0AZH	-10 / -	6	Partial capture
08-25 19:47	60m	- / -	HA7TM	+8 / -	3	Partial capture
08-25 19:46	60m	- / -	DK5WL	-8 / -	3	Partial capture
08-25 19:45	60m	- / -	DD6ZV	-8 / -	4	Partial capture
08-25 19:45	60m	- / -	DK2CC	-14 / -	2	Partial capture
08-25 16:45	60m	- / -10	DL5ASK	-14 / -	3	✓ Closing fragment
08-21 10:49	20m	- / -	DL1UDO	-7 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
201045 -17 1433  DD6ULF ON7KEI R-21
201045  -2 1544  DD6ULF DK5WL JN39 (x3)
201515  -3 1698  DD6ULF 9A4ZM JN86 (x5)
201745 -15 1901  DD6ULF DK7ZT -05
201745  -1 1698  DD6ULF 9A4ZM R-11
201815 -14 1901  DD6ULF DK7ZT -05
201815  -5 1698  DD6ULF 9A4ZM R-11
201845 -15 1901  DD6ULF DK7ZT RR73
201845  -3 1697  DD6ULF 9A4ZM R-11

20m

UTC    dB Audio  Message
104945  -5 1313  DD6ULF DL1UDO JO31 (x3)

CW

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

Explore CW reception at SO8OO

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