DK5ON — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO41

Receiver-side FT8 activity involving DK5ON, decoded by SO8OO in southeastern Poland. 2,187 FT8 messages attributed to this token as transmitter, on 80m, 40m, 10m, across 20 UTC dates in the available aggregate history. Observed between 2026-07-10 and 2026-07-30.

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 2,187 FT8 messages attributed to DK5ON as the transmitting token by decoded message structure across 20 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (77%), followed by 80 m (20%) and 10 m (4%). Most decodes (83%) fell within the six-hour window 21:00-03:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (64%); the estimated median was -17.2 dB.

Overview

2,187
Messages attributed
20
UTC dates decoded
231
Active 15-min windows
-17.2 dB
Estimated median S/N

Bands

80m · 427 40m · 1,682 10m · 78
First attributed message: 2026-07-10
Last attributed message: 2026-07-30 06:39 UTC

Observed FT8 message patterns

Attributed sample
2,187 messages
Active dates
20 UTC dates
Estimated median S/N
-17.2 dB
Estimated 10th-90th percentile
-22.7 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,390, moderate (-15 to -9 dB) 386, strong (≥ -8 dB) 411.

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 DK5ON 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 DK5ON

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
JO41 · 656 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
916 km (approx.)
Last such locator decoded
2026-07-25 00:12 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 UTCBandDK5ON S/NCounterpartCounterpart S/NMsgsCapture
07-30 16:56 40m - / - PA4CC -10 / - 2 ✓ Closing fragment
07-30 15:46 40m - / - SQ5N -14 / - 2 Partial capture
07-30 06:38 40m -17 / - WV2B - / -19 2 Partial capture
07-30 05:50 40m - / -7 SP5ROM -16 / - 2 Partial capture
07-30 05:46 40m -20 / -5 HA3FIC -7 / -11 4 ✓ Full exchange observed
07-30 05:38 40m - / -11 ON4IQ -6 / - 2 ✓ Closing fragment
07-30 04:46 40m - / -15 HA3GX -16 / - 4 Partial capture
07-30 04:12 40m -19 / 0 G0OYQ -7 / +3 3 ✓ Full exchange observed
07-30 04:03 40m -20 / - US2UM - / -8 2 Partial capture
07-30 03:49 40m -18 / - CT7AUT - / -4 2 ✓ Closing fragment
07-30 03:40 40m -19 / - W4VNE - / -9 4 Partial capture
07-30 03:36 40m -18 / - 5P1KZX - / -6 2 Partial capture
07-30 03:28 40m -20 / - W4JHV - / -16 5 Partial capture
07-30 03:21 40m -18 / - KM4SXE - / -17 6 Partial capture
07-30 03:16 40m -18 / - OH3DJP - / -19 7 Partial capture
07-30 03:12 40m -14 / - AA8KY - / -12 5 ✓ Closing fragment
07-30 03:08 40m -16 / - AA8KY - / -12 2 Partial capture
07-30 03:03 40m -16 / - W1EMM - / -16 8 Partial capture
07-30 02:58 40m -17 / - KC4RNF - / -11 2 Partial capture
07-30 02:57 40m -18 / - WA4TED - / -17 2 ✓ Closing fragment
07-30 02:50 40m -17 / - <...> - / -14 10 Partial capture
07-30 02:48 40m - / - EA3EDU -12 / - 4 Partial capture
07-30 02:46 40m -16 / - N8JKD - / -15 5 Partial capture
07-30 02:40 40m -14 / - XQ3SK - / 0 7 Partial capture
07-30 02:34 40m -19 / - KA3PMW - / -18 5 Partial capture
07-30 02:26 40m -16 / - KE5ETC - / -18 5 Partial capture
07-30 02:24 40m -18 / -20 SM7RHI -8 / -13 5 ✓ Full exchange observed
07-30 02:19 40m -15 / - KQ4TTO - / -17 6 Partial capture
07-30 02:13 40m -15 / - KB6DAD - / -10 9 Partial capture
07-30 02:06 40m -18 / - CU2JX - / -5 6 Partial capture
07-30 01:59 40m -19 / - KC8QDP - / -19 6 Partial capture
07-30 01:53 40m -20 / - PT2ND - / +7 6 Partial capture
07-30 01:52 40m -19 / - LA6VQ - / -10 2 ✓ Closing fragment
07-30 01:49 40m -19 / - VA3SPN - / -18 5 ✓ Closing fragment
07-30 01:42 40m -18 / - KA3FUU - / -20 7 Partial capture
07-30 01:34 40m -18 / - KD3CZT - / -16 6 Partial capture
07-30 01:28 40m -17 / - YY4JLG - / -20 9 Partial capture
07-30 01:21 40m -15 / - W3GO - / -13 10 Partial capture
07-30 01:18 40m -16 / - KF9UG - / -14 5 ✓ Closing fragment
07-30 01:12 40m -16 / - PY5JO - / -18 9 Partial capture
07-30 01:05 40m -17 / - MM0HVU - / -1 7 Partial capture
07-30 00:51 40m -18 / - M0LEX - / -13 8 Partial capture
07-30 00:44 40m -16 / - KQ4UWH - / -16 11 Partial capture
07-30 00:38 40m -17 / - HI8UD - / -14 9 Partial capture
07-30 00:34 40m -19 / - PW8BR - / -12 5 ✓ Closing fragment
07-30 00:20 40m -18 / - VE1ZZ - / -9 7 Partial capture
07-30 00:13 40m -16 / -7 <...> -16 / -16 10 Partial capture
07-30 00:11 40m -16 / - IN3WZS -21 / -5 6 ✓ Closing observed
07-30 00:10 40m -22 / -10 RN3DD -23 / - 2 ✓ Closing observed
07-30 00:09 40m -15 / -2 IU0NAD -17 / -2 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
055030 -15 2243  DK5ON SP5ROM R-07 (x2)
055215 -17 2244  OK2PKT DK5ON RR73
055415 -20 2244  M0LAD DK5ON -02
060400 -22 1347  DK5ON IZ7KGB 73
063045 -17 1449  DK5ON HA0AA R-14
063315 -20 2244  WV2B DK5ON -19 (x3)
064030 -21 1293  DK5ON SQ5PTZ 73
154615 -15 1508  DK5ON SQ5N R 559 0015 (x2)
165600 -10  889  DK5ON PA4CC R+14 (x2)
165830 -12  592  DK5ON SP5KRD 73
80m 
UTC    dB Audio  Message
231215  +2 2134  DK5ON 9A5VS 73
231315 -11 1198  DK5ON RA9SOZ R-15
231330  +4 1476  RA9SOZ DK5ON RR73
231345  -5 1198  DK5ON RA9SOZ 73
233400  -5 1476  RK6OV DK5ON -17
233415  -3 1444  DK5ON RK6OV R-12
233430  +2 1476  RK6OV DK5ON RR73
233445  -6 1444  DK5ON RK6OV 73
000130 -19 1515  CQ DK5ON JO41
000315  +5 1214  DO1RFR DK5ON +05 (x3)
000445  -1 1624  CQ DK5ON JO41 (x3)
10m 
UTC    dB Audio  Message
131945 -23 1613  UB3IBG DK5ON RR73
132115 -20 1613  R6YG DK5ON -12 (x9)
133115 -19 1613  RW6MD DK5ON -04
133230  -9 1901  DK5ON RW6MD R-18 (x2)
135730 -16 1824  DK5ON RK3ZB R-09 (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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