DL9MKN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO52

Receiver-side FT8 activity involving DL9MKN, decoded by SO8OO in southeastern Poland. 231 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 16 UTC dates in the available aggregate history. Observed between 2026-07-24 and 2026-09-20.

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 231 FT8 messages attributed to DL9MKN as the transmitting token by decoded message structure across 16 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (40%), followed by 80 m (35%) and 20 m (13%). Most decodes (87%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (83%); the estimated median was 0 dB.

Overview

231
Messages attributed
16
UTC dates decoded
35
Active 15-min windows
0 dB
Estimated median S/N

Bands

First attributed message: 2026-07-24
Last attributed message: 2026-09-20 08:18 UTC

Observed FT8 message patterns

Attributed sample
231 messages
Active dates
16 UTC dates
Estimated median S/N
0 dB
Estimated 10th-90th percentile
-12 to +14 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 25, strong (≥ -8 dB) 192.

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 DL9MKN

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
JO52 · 132 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
803 km (approx.)
Last such locator decoded
2026-09-20 08:17 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 UTCBandDL9MKN S/NCounterpartCounterpart S/NMsgsCapture
09-20 08:16 40m +12 / - DK2NG -10 / - 6 ✓ Full exchange observed
09-20 08:14 80m -11 / - DK2NG -17 / - 5 ✓ Full exchange observed
09-15 19:40 40m -4 / - RI1FJZ - / - 5 Partial capture
09-15 19:33 40m +11 / - RI1FJZ - / - 5 Partial capture
09-15 19:23 40m +10 / - RI1FJZ - / - 10 Partial capture
09-15 19:19 80m -15 / - DH6BH - / - 2 Partial capture
09-15 19:15 40m +4 / - DG5MLA - / - 3 Partial capture
09-14 19:13 60m - / -25 LA/DM2RM -4 / - 2 Partial capture
09-14 19:08 60m - / -10 SM0EJR +2 / - 2 Partial capture
09-14 18:57 60m - / -10 DK7UY -1 / - 3 ✓ Closing fragment
09-14 18:55 60m - / -22 OI7AX 0 / - 2 ✓ Closing fragment
09-14 18:48 60m - / -21 ON7GB -6 / - 5 ✓ Closing fragment
09-14 18:19 60m - / -16 LY3W +10 / - 2 ✓ Closing fragment
09-03 23:18 160m +5 / - RI1FJL - / -15 3 ✓ Closing fragment
09-03 23:17 160m - / - PE1NPS -15 / - 2 Partial capture
09-01 19:19 160m 0 / +2 LZ2IP +9 / - 5 ✓ Full exchange observed
09-01 19:17 160m -2 / - G7RHF - / -13 3 ✓ Closing fragment
09-01 19:13 160m - / - R5BS -11 / - 2 Partial capture
09-01 19:12 160m +2 / 0 OK1DXR -2 / +8 6 ✓ Full exchange observed
09-01 19:11 160m 0 / -20 9A6OY -10 / -6 5 ✓ Full exchange observed
09-01 19:08 160m -2 / - G7RHF - / - 2 Partial capture
09-01 18:52 80m -10 / -10 LZ2VQ +5 / -13 9 ✓ Full exchange observed
09-01 18:47 80m +5 / - RI1FJL - / -21 7 ✓ Closing fragment
09-01 18:46 80m - / - LZ2VQ -2 / - 3 Partial capture
09-01 18:40 80m +5 / - RI1FJL - / - 8 Partial capture
09-01 17:53 80m -18 / -10 DJ6OI -17 / +3 3 Partial capture
08-31 05:12 80m -7 / - GM6URC - / +6 3 ✓ Closing fragment
08-31 05:03 80m -17 / - ON1JP - / +3 2 ✓ Closing fragment
08-31 05:02 80m -15 / - EA3HMM - / +6 2 ✓ Closing fragment
08-31 05:01 80m +4 / -8 DK1HZ +4 / - 4 ✓ Closing observed
08-31 05:00 80m -5 / - DK7DX - / - 2 Partial capture
08-30 18:56 80m +6 / +7 LZ1GC +14 / +3 5 ✓ Full exchange observed
08-30 18:52 80m +14 / - DL2EH -12 / -1 5 ✓ Full exchange observed
08-30 18:04 80m +13 / - DK7DX - / - 3 Partial capture
08-30 17:59 80m -13 / - DL6RDE - / - 2 ✓ Closing fragment
08-29 21:09 80m +13 / - DL5OAH - / - 6 Partial capture
08-29 21:07 80m - / - LZ2VQ +6 / - 2 Partial capture
08-29 21:06 80m +19 / - DL1NEO +2 / - 5 ✓ Full exchange observed
08-29 21:03 80m +8 / - DL9GCG - / -13 4 ✓ Closing fragment
08-28 07:50 10m -8 / -16 DL3MIB +6 / -24 8 ✓ Full exchange observed
08-28 07:48 10m - / -15 DK8ZZ -10 / - 2 ✓ Closing fragment
08-28 07:43 10m -2 / - DL3MIB - / - 3 Partial capture
08-28 03:49 40m - / -6 OA4ENG -10 / - 2 ✓ Closing fragment
08-17 16:55 40m - / +1 DL3MIB -6 / - 2 ✓ Closing fragment
08-16 16:10 20m -3 / - DL4JC - / - 2 Partial capture
08-16 16:00 20m -8 / - DG9VH - / -10 3 ✓ Closing fragment
08-12 13:15 10m -8 / - <...> - / - 2 Partial capture
08-11 18:37 20m +8 / - <...> - / -9 4 Partial capture
08-11 18:34 20m +7 / - DJ0MAB - / -18 3 ✓ Closing fragment
08-11 18:22 20m +13 / - <...> - / -6 5 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
193515 +11 2861  RI1FJZ DL9MKN JO52 (x3)
193730  -1 3138  DL6ZFG DL9MKN JO52
194015  -3 3138  RI1FJZ DL9MKN JO52 (x5)
081645  +8 3040  DK2NG DL9MKN JO52
081700 -10 2008  DL9MKN DK2NG +23
081715 +13 3040  DK2NG DL9MKN JO52 (x2)
081800 -11 2008  DL9MKN DK2NG RR73
081815  +9 3040  DK2NG DL9MKN 73
80m
UTC    dB Audio  Message
185300  +9  323  DL9MKN LZ2VQ KN23
185315 -19 1557  LZ2VQ DL9MKN -13 (x2)
185400  +2 1557  DL9MKN LZ2VQ R-10
185415  -4 1557  LZ2VQ DL9MKN -13
185430  +3 1557  DL9MKN LZ2VQ R-09
185445  -9 1557  LZ2VQ DL9MKN RR73
185500  +1 1557  DL9MKN LZ2VQ 73
191900 -15 3058  DH6BH DL9MKN JO52 (x2)
081415 -16 2219  DK2NG DL9MKN JO52
081430 -14 1971  DL9MKN DK2NG +16
081445  -8 2219  DK2NG DL9MKN R+37
081500 -20 1971  DL9MKN DK2NG RR73
081515 -10 2219  DK2NG DL9MKN 73
60m
UTC    dB Audio  Message
184900  -8 1929  DL9MKN ON7GB JO21 (x4)
185530  +0 2462  DL9MKN OI7AX -22 (x2)
185700  +1 1337  DL9MKN DK7UY JO44 (x3)
190130 -19 1144  OH0KCE DL9MKN JO52
190530 -12 1003  DL9MKN OZ/DG4BRT -10
190800  +1 2479  DL9MKN SM0EJR -10 (x2)
191300  -3 2779  DL9MKN LA/DM2RM -25 (x2)
160m
UTC    dB Audio  Message
191345  -2 1195  DL9MKN OK1DXR 73
191415 -10 1389  DL9MKN R5BS KO85
191745  -5 2214  G7RHF DL9MKN JO52 (x3)
191945  +5 2214  LZ2IP DL9MKN JO52
192000  +8 1714  DL9MKN LZ2IP +02
192015  -2 2214  LZ2IP DL9MKN R+19
192030 +10 1714  DL9MKN LZ2IP RR73
192045  -4 2214  LZ2IP DL9MKN 73
231700 -14 2471  DL9MKN PE1NPS JO22
231815  +7  774  RI1FJL DL9MKN JO52
231830 -16 2471  DL9MKN PE1NPS JO22
231845  +5  774  RI1FJL DL9MKN R-15 (x2)
10m
UTC    dB Audio  Message
131530  -9 1670  <...> DL9MKN JO52 (x2)
074345  -4 2973  DL3MIB DL9MKN JO52 (x3)
074815  -8 2049  DL9MKN DK8ZZ -15 (x2)
075045 -14 1134  DL3MIB DL9MKN JO52
075130  +6 1067  DL9MKN DL3MIB -16
075145  -9 1088  DL3MIB DL9MKN R-24
075200  +8 1067  DL9MKN DL3MIB -16
075215  -6 1088  DL3MIB DL9MKN R-23
075230  +2 1067  DL9MKN DL3MIB -16 (x2)
075315  -5 1066  DL3MIB DL9MKN 73
20m
UTC    dB Audio  Message
182715  +6 2941  <...> DL9MKN JO52 (x3)
183415  +3 2941  DJ0MAB DL9MKN -18 (x3)
183715 +12 2941  <...> DL9MKN JO52 (x4)
160015 -10 2948  DG9VH DL9MKN JO52 (x3)
161000  -3 3031  DL4JC DL9MKN JO52 (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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee