DH4HAN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO43

Receiver-side FT8 activity involving DH4HAN, decoded by SO8OO in southeastern Poland. 46 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-16 and 2026-08-16.

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 46 FT8 messages attributed to DH4HAN 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 -19 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-19 dB

Estimated median S/N

Bands

20m · 46

First attributed message: 2026-07-16
Last attributed message: 2026-08-16 18:19 UTC

Observed FT8 message patterns

Attributed sample: 46 messages
Active dates: 2 UTC dates
Estimated median S/N: -19 dB
Estimated 10th-90th percentile: -23 to -8 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 29, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 5.

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 DH4HAN in decoded directed-looking exchanges:

M0BEW · England DL3MIB · Fed. Rep. of Germany EA3AVS · Spain F1PBZ · France G4CFS · England G4DBW · England LZ2INP · Bulgaria LZ2VQ · Bulgaria M3TZX · England M7TUP · England NZ2X · United States R2BMP · European Russia

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 DH4HAN

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: JO43 · 29 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 964 km (approx.)
Last such locator decoded: 2026-08-16 18:19 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	DH4HAN S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-16 18:18	20m	-23 / -	F1ODM	- / -	2	Partial capture
08-16 17:47	10m	- / -	SV1EKI	-15 / -	3	Partial capture
08-16 17:36	10m	- / +1	M0BEW	-10 / -	2	✓ Closing fragment
08-16 06:18	20m	-12 / -	R8LDJ	- / -	2	Partial capture
08-16 06:14	20m	-11 / -	UR4UUY	- / -14	7	✓ Closing fragment
08-16 06:11	20m	-10 / -	DB1HEF	- / -5	2	Partial capture
08-16 05:54	20m	-17 / -	OA4ENN	- / -	5	Partial capture
08-16 05:48	20m	- / -16	LZ2VQ	-16 / -	3	✓ Closing fragment
08-15 22:34	40m	- / -4	RN6MA	-15 / -	2	Partial capture
08-15 22:33	40m	- / -10	RX3ASQ	-20 / -	2	Partial capture
08-15 22:32	80m	- / -	DL6KA	-10 / -	10	Partial capture
08-15 22:30	80m	- / -9	SP4NDY	+10 / -	3	✓ Closing fragment
08-15 22:27	80m	- / -3	DD7EE	-3 / -	5	✓ Closing fragment
08-15 22:26	80m	- / -19	F1PBZ	-8 / -	3	Partial capture
08-15 22:26	80m	- / -16	UA4FKT	+2 / -	3	✓ Closing fragment
07-16 13:44	40m	- / -23	SP3IPA	-14 / -	2	Partial capture
07-16 12:12	20m	- / -15	G4CFS	-10 / -	3	✓ Closing fragment
07-16 11:23	20m	-23 / -6	EA3AVS	-22 / +3	3	✓ Full exchange observed
07-16 11:12	20m	- / -11	F1PBZ	-12 / -	2	✓ Closing fragment
07-16 11:07	20m	- / -15	G4DBW	-12 / -	3	✓ Closing fragment
07-16 11:02	20m	- / -18	EA2DYB	-4 / -	3	Partial capture
07-16 10:56	20m	- / +1	RN6MA	-16 / -	2	✓ Closing fragment
07-16 10:51	20m	-22 / -5	UT7UJ	+4 / -	4	✓ Full exchange observed
07-16 10:50	20m	-22 / -10	DL3MIB	-12 / -	3	✓ Closing observed
07-16 10:46	20m	-20 / -2	LZ2INP	-10 / -	2	✓ Closing observed
07-16 10:37	20m	- / -	DL1R	-5 / -	6	Partial capture
07-16 10:23	20m	- / -12	UA3QNA	-15 / -	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
061200  -6 1769  DB1HEF DH4HAN RRR
061230  -6 1769  CQ DH4HAN JO43 (x3)
061430  -8 1769  UR4UUY DH4HAN JO43 (x7)
061800 -12 1769  R8LDJ DH4HAN JO43 (x2)
181830 -24 1668  F1ODM DH4HAN JO43 (x2)

10m

UTC    dB Audio  Message
173630 -11 1667  DH4HAN M0BEW +01 (x2)
174730 -16 2482  DH4HAN SV1EKI KM18 (x3)

80m

UTC    dB Audio  Message
222830  -1  962  DH4HAN DD7EE R-03 (x2)
223000 +10 2653  DH4HAN SP4NDY KO04 (x3)
223200  -6  623  DH4HAN DL6KA +12 (x10)

40m

UTC    dB Audio  Message
133715 -15 1039  DH4HAN DL2YBG R-04
134045 -16 2438  DH4HAN IQ4JO JN63
134415 -16 1011  DH4HAN SP3IPA R-23 (x2)
223300 -21 1146  DH4HAN RX3ASQ KO95 (x2)
223430 -13 1529  DH4HAN RN6MA -04 (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.

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