DK8JS — 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: JN57

Receiver-side FT8 activity involving DK8JS, decoded by SO8OO in southeastern Poland. 28 FT8 messages attributed to this token as transmitter, on 80m, across 6 UTC dates in the available aggregate history. Observed between 2026-08-04 and 2026-10-17.

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 28 FT8 messages attributed to DK8JS as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

80m · 28

First attributed message: 2026-08-04
Last attributed message: 2026-10-17 05:27 UTC

Observed FT8 message patterns

Attributed sample: 28 messages
Active dates: 6 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -20 to -8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 4.

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 DK8JS in decoded directed-looking exchanges:

9A5E · Croatia 9A5JU · Croatia DO9BAU · Fed. Rep. of Germany F4LIP · France F5PBG · France GM6URC · Scotland HB9EFK · Switzerland OE5DML · Austria UT2PC · Ukraine

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 DK8JS

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: JN57 · 12 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 836 km (approx.)
Last such locator decoded: 2026-10-17 05:27 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	DK8JS S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-10 04:03	80m	-12 / -	LY5A	- / -	2	Partial capture
10-10 04:02	80m	-12 / -	GM6URC	- / +2	2	✓ Closing fragment
10-09 04:16	80m	-20 / -12	DO9BAU	+9 / -	4	✓ Full exchange observed
10-09 04:15	80m	-10 / -14	F5PBG	-1 / -	4	✓ Closing observed
10-09 04:14	80m	-15 / -11	HB9EFK	+10 / -	5	✓ Full exchange observed
10-08 03:37	80m	-18 / -10	OE5DML	+10 / -2	4	✓ Full exchange observed
10-08 03:36	80m	-18 / -14	9A5E	+15 / +9	5	✓ Full exchange observed
10-08 03:32	80m	-11 / -19	OH6FSO	-12 / +6	9	Partial capture
09-25 04:40	80m	-15 / -	N0BUZ	- / -	2	Partial capture
08-30 04:12	80m	- / -	UT2PC	+12 / -	2	✓ Closing fragment
08-04 05:06	80m	-18 / -	F4LIP	- / -	2	✓ Closing fragment
08-04 05:05	80m	-10 / -	9A5JU	-1 / -1	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
041500 -16 2575  HB9EFK DK8JS 73
041515  +0 2626  DK8JS F5PBG IN78 (x2)
041600 -10 2575  F5PBG DK8JS RR73
041615  +1 2627  DK8JS F5PBG 73
041615 +16 2502  DK8JS DO9BAU JO62
041630 -20 2626  DO9BAU DK8JS +18
041645  +5 2502  DK8JS DO9BAU R-12 (x2)
040245 -14 2251  GM6URC DK8JS R+02 (x2)
040345 -13  549  LY5A DK8JS JN57 (x2)
040545  -7  485  EA6LU DK8JS JN57
052700 -16 1437  PI4DX DK8JS JN57

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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