DK6JU — 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: JO33

Receiver-side FT8 activity involving DK6JU, decoded by SO8OO in southeastern Poland. 110 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-07-13 and 2026-10-18.

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 110 FT8 messages attributed to DK6JU as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (65%), followed by 20 m (33%) and 80 m (2%). Most decodes (84%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (78%); the estimated median was -1 dB.

Overview

110

Messages attributed

UTC dates decoded

Active 15-min windows

-1 dB

Estimated median S/N

Bands

80m · 2 40m · 72 20m · 36

First attributed message: 2026-07-13
Last attributed message: 2026-10-18 18:45 UTC

Observed FT8 message patterns

Attributed sample: 110 messages
Active dates: 8 UTC dates
Estimated median S/N: -1 dB
Estimated 10th-90th percentile: -11 to +12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 86.

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 DK6JU in decoded directed-looking exchanges:

A61DD · United Arab Emirates ×2 R4CHN · European Russia ×2 A41DV · Oman BI4IWL · China JA5NSR · Japan M0NRG · England RA4ADF · European Russia RA4FUT · European Russia RU3G · European Russia UN8PC · Kazakhstan

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 DK6JU

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: JO33 · 60 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,091 km (approx.)
Last such locator decoded: 2026-10-18 18:41 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	DK6JU S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-18 18:45	40m	+8 / -	RU3G	- / -13	2	✓ Closing fragment
10-18 18:41	40m	+18 / +2	M0NRG	+1 / -4	5	✓ Full exchange observed
10-18 18:39	40m	+11 / -	M8MFU	- / +1	3	Partial capture
10-18 18:36	40m	+10 / -	UN8PC	- / -13	3	✓ Closing fragment
10-18 18:32	40m	+16 / -	A61DD	- / -9	3	✓ Closing fragment
10-18 18:30	40m	+20 / -	ZL1VAH	- / -	2	Partial capture
10-12 19:53	40m	-1 / -	ZS6KBS	- / -	3	Partial capture
10-12 19:50	40m	-1 / -	BA7SAY	- / -	3	Partial capture
10-12 19:46	40m	+4 / -	BG0FQU	- / -17	4	Partial capture
10-12 19:44	40m	+5 / -	BG5JKZ	- / -	3	Partial capture
09-23 19:16	40m	0 / -	TA7MMI	- / -	2	Partial capture
09-23 19:07	40m	+5 / -3	A61DD	-10 / -9	15	✓ Full exchange observed
09-23 19:04	40m	-6 / -	A41DV	- / -15	3	✓ Closing fragment
09-23 19:03	40m	+11 / -	BI4IWL	- / -20	3	✓ Closing fragment
09-23 19:01	40m	-2 / -	BG7BVI	- / -	2	Partial capture
09-23 18:59	40m	+10 / -12	RA4FUT	-6 / -8	3	✓ Full exchange observed
09-23 18:57	40m	+6 / -	JA5NSR	- / -17	3	✓ Closing fragment
09-23 18:54	40m	-4 / -	RA4ADF	-12 / -24	5	✓ Closing observed
09-23 18:51	40m	- / -	RZ4FWA	-16 / -	2	Partial capture
09-23 18:49	40m	-10 / -	R4CHN	-15 / -21	3	✓ Closing observed
09-20 19:13	80m	+14 / -	R7CD	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
183230 +15  872  A61DD DK6JU R-09 (x2)
183645 +11  801  UN8PC DK6JU JO33 (x3)
183915 +12 2480  M8MFU DK6JU +01 (x3)
184115 +21 2884  M0NRG DK6JU JO33
184130  +5 2884  DK6JU M0NRG +02
184145 +13 2884  M0NRG DK6JU R-04
184200  -3 2884  DK6JU M0NRG RR73
184215 +19 2884  M0NRG DK6JU 73
184515  +4  981  RU3G DK6JU R-13 (x2)

80m

UTC    dB Audio  Message
191330 +15 2185  R7CD DK6JU JO33 (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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