DK2BK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN49

Receiver-side FT8 activity involving DK2BK, decoded by SO8OO in southeastern Poland. 1,637 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 65 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-18.

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 1,637 FT8 messages attributed to DK2BK as the transmitting token by decoded message structure across 65 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (47%), followed by 60 m (28%) and 40 m (21%). Most decodes (90%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (76%); the estimated median was -4 dB.

Overview

1,637
Messages attributed
65
UTC dates decoded
237
Active 15-min windows
-4 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-09-18 20:22 UTC

Observed FT8 message patterns

Attributed sample
1,637 messages
Active dates
65 UTC dates
Estimated median S/N
-4 dB
Estimated 10th-90th percentile
-12 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 87, moderate (-15 to -9 dB) 304, strong (≥ -8 dB) 1,246.

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.

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 DK2BK

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
JN49 · 959 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
920 km (approx.)
Last such locator decoded
2026-09-18 20:21 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 UTCBandDK2BK S/NCounterpartCounterpart S/NMsgsCapture
09-18 20:21 80m -10 / - DH1GB - / -2 3 Partial capture
09-18 19:51 80m - / -8 OZ/DL3KWF -6 / - 2 Partial capture
09-18 19:46 60m -5 / -4 C31CT -10 / +8 5 ✓ Full exchange observed
09-18 19:43 60m +2 / - OK1BN +5 / - 5 ✓ Full exchange observed
09-18 19:42 60m -4 / - MI0UYD - / -18 2 ✓ Closing fragment
09-18 19:40 60m -4 / -4 PA9R -11 / 0 5 ✓ Full exchange observed
09-18 19:38 60m -2 / -9 HF5A +5 / -2 5 ✓ Full exchange observed
09-18 19:36 60m -4 / -4 SP8IPJ -6 / -19 5 ✓ Full exchange observed
09-18 19:32 60m 0 / -10 DL1WU -24 / -17 6 ✓ Full exchange observed
09-18 19:32 60m +1 / - II0IHMG - / +5 4 Partial capture
09-18 19:30 60m +2 / - DC8RA 0 / +9 5 ✓ Full exchange observed
09-18 19:28 60m +2 / - OK1TRJ +6 / - 5 ✓ Full exchange observed
09-18 19:27 60m - / - DG3BD -7 / - 2 Partial capture
09-18 19:26 60m 0 / +10 IV3DSG 0 / - 5 ✓ Full exchange observed
09-18 18:32 80m 0 / -11 DO1BOC +1 / - 4 ✓ Closing observed
09-17 21:24 80m +2 / - DM6MAR - / -12 2 ✓ Closing fragment
09-17 20:28 80m - / +3 DL75WAU -12 / - 2 Partial capture
09-17 20:26 80m +2 / - 9A2MK/P - / +7 4 Partial capture
09-16 20:25 80m - / -23 SN100PKP +16 / - 2 Partial capture
09-12 18:30 80m +3 / -14 DL0RDG +4 / -11 9 ✓ Full exchange observed
09-12 18:23 80m -3 / -16 DO1TRH -19 / -7 4 ✓ Full exchange observed
09-08 14:31 40m -16 / - SN40KZE - / - 2 Partial capture
09-08 14:15 40m -22 / - SV8/SV1TQB - / - 2 Partial capture
09-08 14:12 40m -17 / -17 HF100PKP -8 / -19 3 Partial capture
09-08 14:10 40m -16 / - YB6TFD/R - / -16 2 Partial capture
09-06 18:40 80m -4 / - SP5DFK/QRP - / -6 2 Partial capture
09-04 19:26 40m -6 / - RI1FJL - / - 2 Partial capture
09-04 19:22 80m -2 / +2 DL0BUX -6 / 0 4 ✓ Full exchange observed
09-04 19:21 80m -7 / +4 DL0NS -12 / -2 3 ✓ Full exchange observed
09-04 17:15 40m 0 / - R1943OD - / +9 2 Partial capture
09-04 17:13 40m - / +1 DL9GCG -1 / - 2 ✓ Closing fragment
09-04 15:10 40m -20 / - <...> - / - 2 Partial capture
09-03 20:58 80m +1 / - DL2TT - / - 2 Partial capture
09-03 20:56 80m -9 / - DL9GCG - / +7 3 ✓ Closing fragment
09-03 19:44 80m -6 / - OK1LTV -6 / - 3 ✓ Closing observed
09-03 19:41 80m -6 / -10 OE5ABL -1 / -3 3 Partial capture
09-03 19:39 80m -12 / 0 DF8XC +12 / - 4 ✓ Full exchange observed
09-03 19:32 80m -7 / - SQ100PKP - / -12 2 Partial capture
09-03 19:26 40m -9 / - <...> - / +4 6 Partial capture
09-03 19:16 80m -7 / - <...> - / -4 5 Partial capture
09-03 18:50 80m -8 / -5 DL0ABT +7 / -7 6 ✓ Full exchange observed
09-02 20:00 80m - / -16 SO100PKP +12 / - 3 Partial capture
09-02 19:45 80m -14 / - DG1WSK - / -18 3 Partial capture
09-02 19:19 60m -6 / - IZ5NFD -10 / -2 3 ✓ Closing observed
09-02 19:17 60m -4 / +4 DH1PS -7 / +8 5 ✓ Full exchange observed
09-02 19:15 60m -8 / +6 F6FEG -5 / -4 7 ✓ Full exchange observed
09-02 19:15 60m -5 / -8 GX1RAF -7 / +5 5 ✓ Full exchange observed
09-02 19:13 60m -6 / - DK9TZ -4 / - 5 ✓ Full exchange observed
09-02 19:06 60m -2 / - DC9GT - / -15 2 ✓ Closing fragment
09-02 18:57 60m -9 / - DL6ZAJ -6 / +6 5 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
202815 -13  270  DK2BK DL75WAU +03
202830  +4  604  9A2MK/P DK2BK R+07
202845 -12  270  DK2BK DL75WAU +03
202900 +10  604  9A2MK/P DK2BK R+13
212430  +2  603  DM6MAR DK2BK R-12 (x2)
183245  +0  760  DO1BOC DK2BK JN49
183330  -4 1103  DK2BK DO1BOC -11 (x2)
183415  +0  760  DO1BOC DK2BK 73
195145  -9  952  DK2BK OZ/DL3KWF -08 (x2)
202100  -8  956  DH1GB DK2BK JN49 (x3)
60m
UTC    dB Audio  Message
194300  -4  884  CQ DK2BK JN49 (x2)
194345  +3 1515  DK2BK OK1BN JO70
194400  +3  884  OK1BN DK2BK +13
194415  +5 1515  DK2BK OK1BN R+11
194430  +2  884  OK1BN DK2BK RR73
194445  +6 1515  DK2BK OK1BN 73
194500  -6  884  CQ DK2BK JN49                         a1 (x3)
194630  -4  884  C31CT DK2BK JN49
194645 -12 2010  DK2BK C31CT -04
194700  -6  884  C31CT DK2BK R+08
194715  -9 2010  DK2BK C31CT RR73
194730  -5  884  C31CT DK2BK 73
40m
UTC    dB Audio  Message
192615  -5  893  RI1FJL DK2BK JN49 (x2)
141045 -13 1737  YB6TFD/R DK2BK JN49
141230  -4 2240  DK2BK HF100PKP -17
141245 -18 1735  YB6TFD/R DK2BK R-16
141300 -13 2240  DK2BK HF100PKP -17
141345 -17 1735  <HF100PKP> DK2BK R-19
141545 -21 1791  SV8/SV1TQB DK2BK JN49 (x2)
141730  +4 1880  DK2BK SN100PKP +14
143145 -17 1941  SN40KZE DK2BK JN49 (x2)
143500  -3 2240  DK2BK HF100PKP -12
100800 -22 1951  DL1NB DK2BK JN49
083345  -8  537  DL7GCW DK2BK 73
20m
UTC    dB Audio  Message
200930  -4  516  DK2BK TN8GD -08
200945  -7 2070  TN8GD DK2BK R+04
201000  -4  516  DK2BK TN8GD RR73
201015  -6 2070  TN8GD DK2BK 73
181500 -11  410  DK2BK RR73; IU4FJH <TT1GD> -16
170100  -1 2309  DK2BK <...> -16
170115  -7  774  F4IOH/P DK2BK R-06
170215 -12  774  <8B81JB> DK2BK JN49
170330 -10 1763  DK2BK <...> -16 (x2)
171400  -4  773  F4IOH/P DK2BK JN49 (x2)
171445 -11 2020  DK2BK <...> -17
171500  -7  773  F4IOH/P DK2BK R-07 (x2)
10m
UTC    dB Audio  Message
093730 -20 1254  TK5K DK2BK JN49

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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