DO9SCH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO30

Receiver-side FT8 activity involving DO9SCH, decoded by SO8OO in southeastern Poland. 34 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-09-11.

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 34 FT8 messages attributed to DO9SCH as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (97%), followed by 160 m (3%). Several six-hour UTC windows tied for the largest share (68%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

160m · 1 80m · 33

First attributed message: 2026-06-12
Last attributed message: 2026-09-11 18:23 UTC

Observed FT8 message patterns

Attributed sample: 34 messages
Active dates: 5 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -24 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 13.

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 DO9SCH in decoded directed-looking exchanges:

PA3FR · Netherlands DJ8TX · Fed. Rep. of Germany DL4ABN · Fed. Rep. of Germany DL5OAH · Fed. Rep. of Germany DL7UKM · Fed. Rep. of Germany DO1FED · Fed. Rep. of Germany DO2BBC · Fed. Rep. of Germany DO7MEW · Fed. Rep. of Germany LY1DY · Lithuania

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 DO9SCH

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: JO30 · 19 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,053 km (approx.)
Last such locator decoded: 2026-09-11 18:23 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	DO9SCH S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-04 18:40	80m	- / -	DA6JN	+2 / -	7	Partial capture
09-04 18:39	80m	- / -	DA6IT	-8 / -	2	Partial capture
09-04 17:10	80m	-24 / -15	DL4ABN	-10 / -	4	✓ Full exchange observed
08-29 19:45	80m	- / -14	DL7UKM	0 / -	3	✓ Closing fragment
08-29 19:37	80m	-10 / -	DK4FH	- / -	2	Partial capture
08-29 19:32	80m	-6 / -	DO2BBC	- / -16	2	✓ Closing fragment
08-29 18:46	160m	- / -	PA3FR	-7 / -	2	✓ Closing fragment
08-29 18:31	80m	-22 / -	DJ8TX	- / +9	2	✓ Closing fragment
08-25 03:02	80m	- / -	DO1ID	+2 / -	2	Partial capture
08-25 03:02	80m	-12 / -3	LY1DY	+10 / -	6	✓ Full exchange observed
06-28 17:13	10m	- / -18	F1PBZ	+2 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
171015 -24 2221  CQ DO9SCH JO30
171030 -10 2221  DO9SCH DL4ABN JO51
171045 -24 2221  DL4ABN DO9SCH +26
171100  -9 2221  DO9SCH DL4ABN R-15 (x2)
183930  -5 1002  DO9SCH DA6IT JO31
184030  +1  597  DO9SCH DA6JN JO42 (x2)
184100 -11 1002  DO9SCH DA6IT JO31
184200  +7  597  DO9SCH DA6JN JO42 (x5)
182345 -19  721  CQ DO9SCH JO30

160m

UTC    dB Audio  Message
184600  -9 1145  DO9SCH PA3FR JO33 (x2)
184745 -21 1226  CQ DO9SCH JO30                        a1

10m

UTC    dB Audio  Message
171330  +4 2833  DO9SCH F1PBZ -18 (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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