DK8UU — 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: JN48

Receiver-side FT8 activity involving DK8UU, decoded by SO8OO in southeastern Poland. 131 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-08-11 and 2026-10-16.

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 131 FT8 messages attributed to DK8UU 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 (86%), followed by 20 m (11%) and 40 m (3%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (73%); the estimated median was -18 dB.

Overview

131
Messages attributed
5
UTC dates decoded
18
Active 15-min windows
-18 dB
Estimated median S/N

Bands

80m · 113 40m · 4 20m · 14
First attributed message: 2026-08-11
Last attributed message: 2026-10-16 20:45 UTC

Observed FT8 message patterns

Attributed sample
131 messages
Active dates
5 UTC dates
Estimated median S/N
-18 dB
Estimated 10th-90th percentile
-24 to -14 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 95, moderate (-15 to -9 dB) 35, strong (≥ -8 dB) 1.

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 DK8UU in decoded directed-looking exchanges:

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 DK8UU

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
JN48 · 67 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
941 km (approx.)
Last such locator decoded
2026-10-16 20:45 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 UTCBandDK8UU S/NCounterpartCounterpart S/NMsgsCapture
08-25 21:59 80m -18 / - SN5N - / - 2 Partial capture
08-25 21:53 80m -16 / +1 ON3BEN -8 / -1 4 ✓ Full exchange observed
08-25 21:45 80m -16 / -5 DF2RG +6 / -4 4 ✓ Full exchange observed
08-25 21:43 80m -22 / -17 EA4HPY -6 / +5 4 Partial capture
08-25 21:37 80m -21 / - <...> - / +9 2 Partial capture
08-25 21:34 80m -17 / - EA4HPY - / - 2 Partial capture
08-25 21:23 80m -15 / -3 DA6IT -6 / - 5 ✓ Full exchange observed
08-25 21:10 80m -15 / -11 9A9N +5 / 0 5 ✓ Full exchange observed
08-25 20:41 80m -22 / -17 HB3YOY -8 / +1 5 ✓ Full exchange observed
08-25 20:35 80m -23 / 0 DA6BR -6 / -5 4 ✓ Full exchange observed
08-25 20:32 80m -20 / -13 SP9WUJ -16 / -13 4 ✓ Full exchange observed
08-25 20:29 80m -18 / -13 SP5DFK -4 / -14 5 ✓ Full exchange observed
08-25 20:26 80m -21 / -23 DO9POL -24 / -6 3 ✓ Full exchange observed
08-25 20:25 80m -24 / - DL3RSK -13 / - 3 ✓ Closing observed
08-25 20:23 80m -24 / - DF2UF - / -2 2 ✓ Closing fragment
08-25 20:22 80m -22 / -9 F4ESO -8 / +9 5 ✓ Full exchange observed
08-25 20:16 80m -22 / - DK8HC -11 / +2 5 ✓ Closing observed
08-25 20:16 80m -22 / -19 DL1HDL -6 / +7 6 ✓ Full exchange observed
08-25 20:16 80m -19 / 0 DO1DMR -12 / - 3 ✓ Closing observed
08-23 21:01 40m -13 / -8 DK6WS -8 / -7 5 ✓ Full exchange observed
08-23 20:59 40m -14 / -13 PD2TX -1 / - 3 ✓ Closing observed
08-12 23:01 20m -16 / - SV5BYP - / -7 7 Partial capture
08-12 22:58 20m -17 / - 3A2MW - / - 3 Partial capture
08-12 22:55 20m -15 / -12 OZ7DR -24 / -4 4 ✓ Full exchange observed
08-12 22:46 80m -20 / -7 HB9XBY -2 / - 10 ✓ Full exchange observed
08-12 22:43 80m -16 / - <...> - / - 3 Partial capture
08-12 22:40 80m -14 / - F5MJN - / +6 4 ✓ Closing fragment
08-12 22:37 80m -18 / -12 M7CWF -16 / -7 5 ✓ Full exchange observed
08-12 20:59 10m - / -1 F6FHZ -22 / - 3 ✓ Closing fragment
08-11 22:16 80m -15 / -13 HB3YPJ -12 / +9 8 ✓ Full exchange observed
08-11 22:13 80m - / -9 PA3MVD -2 / - 2 ✓ Closing fragment
08-11 22:09 80m -15 / - HB9RYB - / - 3 Partial capture
08-11 22:03 80m -17 / -7 ON4MAP -11 / +1 5 ✓ Full exchange observed
08-11 22:01 80m -16 / -3 DL9KM +3 / +5 7 ✓ Full exchange observed
08-11 22:01 80m -18 / -17 DO2YJG -8 / 0 5 ✓ Full exchange observed
08-11 22:00 80m -23 / -3 DO5PY 0 / 0 3 Partial capture
08-11 21:57 80m -16 / -15 G8OO -2 / -7 6 ✓ Full exchange observed
08-11 21:52 80m -19 / -16 DA7T -10 / - 6 ✓ Closing observed
08-11 21:49 80m -22 / -2 DO9JTR -18 / -3 4 ✓ Full exchange observed
08-11 21:47 80m -24 / +2 LB9ZG +1 / 0 5 ✓ Full exchange observed
08-11 21:44 80m -24 / - <...> - / - 2 Partial capture
08-11 21:41 80m -16 / - <...> - / +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
214330 -23 1967  EA4HPY DK8UU JN48
214500 -18 1967  DF2RG DK8UU JN48
214515  -6 1838  DK8UU EA4HPY -17
214515  +5 1730  DK8UU DF2RG -05
214530 -14 1967  DF2RG DK8UU R-04
214545  +7 1730  DK8UU DF2RG RR73
214700 -22 1967  EA4HPY DK8UU JN48 (x2)
215300 -14 1442  ON3BEN DK8UU JN48
215315  -4 1538  DK8UU ON3BEN +01
215330 -18 1442  ON3BEN DK8UU R-01
215345 -12 1538  DK8UU ON3BEN RR73
215900 -19 1041  SN5N DK8UU JN48 (x2)
204515 -20 1546  S55X DK8UU JN48
40m 
UTC    dB Audio  Message
205900  -1 2219  DK8UU PD2TX -13 (x2)
205945 -14 2219  PD2TX DK8UU 73
210130 -14 2219  DK6WS DK8UU JN48
210145  -7 1497  DK8UU DK6WS -08
210200 -13 2219  DK6WS DK8UU R-07
210215 -10 1497  DK8UU DK6WS RR73
210230 -12 2219  DK6WS DK8UU 73
20m 
UTC    dB Audio  Message
225515 -12 1306  OZ7DR DK8UU JN48
225530 -24 1516  DK8UU OZ7DR -12
225545 -18 1306  OZ7DR DK8UU R-04 (x2)
225715 -15 1306  9A4ZM DK8UU RR73
225845 -18 1306  3A2MW DK8UU JN48 (x3)
230115 -15 1306  SV5BYP DK8UU JN48 (x7)
10m 
UTC    dB Audio  Message
205915 -24 1430  DK8UU F6FHZ R-01 (x3)

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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