DK1MAX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN58

Receiver-side FT8 activity involving DK1MAX, decoded by SO8OO in southeastern Poland. 1,867 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 62 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-11.

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 1,867 FT8 messages attributed to DK1MAX as the transmitting token by decoded message structure across 62 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (57%), followed by 40 m (24%) and 160 m (8%). Most decodes (66%) fell within the six-hour window 03:00-09:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (71%); the estimated median was -2.8 dB.

Overview

1,867
Messages attributed
62
UTC dates decoded
235
Active 15-min windows
-2.8 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-10-11 05:00 UTC

Observed FT8 message patterns

Attributed sample
1,867 messages
Active dates
62 UTC dates
Estimated median S/N
-2.8 dB
Estimated 10th-90th percentile
-14 to +13 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 137, moderate (-15 to -9 dB) 401, strong (≥ -8 dB) 1,329.

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 DK1MAX

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
JN58 · 1,172 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
799 km (approx.)
Last such locator decoded
2026-10-11 05:00 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 UTCBandDK1MAX S/NCounterpartCounterpart S/NMsgsCapture
10-11 05:00 40m +8 / - KR4HRN - / - 2 Partial capture
10-11 04:56 40m +12 / - HC2GRC - / - 2 Partial capture
10-11 04:55 40m +17 / - KR4HRN - / - 2 Partial capture
10-11 04:53 40m +10 / - HP1VS - / -17 2 Partial capture
10-11 04:48 40m +2 / - HK4YDT - / -19 3 ✓ Closing fragment
10-11 04:45 40m 0 / - C5R - / -5 2 ✓ Closing fragment
10-11 04:44 40m +8 / - LU3DOJ - / - 2 Partial capture
10-11 04:38 40m +4 / - C5R - / - 8 Partial capture
10-09 05:45 40m +6 / - MI7RDK - / -10 2 ✓ Closing fragment
10-09 05:42 40m +2 / - F5SJC -14 / -1 4 ✓ Full exchange observed
10-09 05:38 40m +4 / - NZ1VA - / -18 3 ✓ Closing fragment
10-09 05:29 40m +22 / - EA1AUM - / 0 2 ✓ Closing fragment
10-09 05:24 40m +23 / - ZL2LA - / -14 5 ✓ Closing fragment
10-09 05:20 40m +22 / - ZL2LA - / - 2 Partial capture
10-09 05:17 40m +18 / -2 IU1TLG 0 / -13 5 ✓ Full exchange observed
10-09 05:14 40m +18 / - SV1CEI - / -10 2 ✓ Closing fragment
10-09 05:11 40m +20 / - K8TUK - / -18 5 ✓ Closing fragment
10-09 05:10 40m +2 / - WA4KBD - / -14 2 ✓ Closing fragment
10-09 05:08 40m - / - G3TKT -5 / - 3 Partial capture
10-09 05:05 40m -12 / 0 UC6D +6 / 0 4 ✓ Full exchange observed
10-09 04:58 40m - / - YO4SX 0 / - 3 ✓ Closing fragment
10-09 04:56 40m -10 / - N4MMR - / -11 2 ✓ Closing fragment
10-08 06:38 40m - / - F5MXH -7 / - 3 Partial capture
10-08 06:35 40m +12 / - VK2BTU - / -23 7 ✓ Closing fragment
10-08 06:19 40m +8 / - VK2BTU - / - 3 Partial capture
10-08 05:13 40m - / -10 IK4JPP -7 / - 3 Partial capture
10-08 05:09 40m - / +2 GJ0KYZ -12 / - 2 ✓ Closing fragment
10-03 04:33 60m +11 / - 9T0MD - / -15 5 Partial capture
09-30 19:00 80m -3 / - ZC4OL - / - 3 Partial capture
09-29 04:30 40m - / -8 F1PBZ +4 / - 2 Partial capture
09-25 05:03 40m +21 / - W5RBD - / - 5 Partial capture
09-25 04:54 40m +14 / - K4CAE - / - 2 Partial capture
09-25 04:53 40m +2 / - KB9LYB - / - 3 Partial capture
09-25 04:05 40m - / 0 RA3ZDU -7 / - 3 ✓ Closing fragment
09-24 19:27 40m +16 / - BA5AN - / -25 2 ✓ Closing fragment
09-22 04:54 40m - / - KS4OT -15 / - 3 Partial capture
09-22 04:54 40m - / - RD3FY -6 / - 3 Partial capture
09-22 04:53 40m +8 / - CT2HEX - / -8 2 ✓ Closing fragment
09-22 04:52 40m +11 / - NR5G - / -17 2 ✓ Closing fragment
09-22 04:50 40m +9 / - W3GO - / -9 2 ✓ Closing fragment
09-22 04:49 40m - / -8 R5AV -4 / - 2 Partial capture
09-22 04:46 40m +2 / - KL0U - / - 5 Partial capture
09-22 04:43 40m +12 / - FS4WBS - / - 6 Partial capture
09-22 04:42 40m +12 / +6 KB3Z -8 / -2 4 ✓ Full exchange observed
09-22 04:39 40m +13 / -8 ON1DGN -11 / -16 6 ✓ Full exchange observed
09-22 04:39 40m +2 / - KR4LQH - / -11 3 ✓ Closing fragment
09-22 04:32 40m +13 / - RA6LHU - / -10 2 ✓ Closing fragment
09-22 04:30 40m +9 / - ZL2MY - / - 2 Partial capture
09-22 04:28 40m +9 / - KD3CMN - / -17 5 Partial capture
09-22 04:23 40m -3 / - OA4ELT - / -12 5 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
044445  +7 2156  LU3DOJ DK1MAX JN58
044515  +5 1624  C5R DK1MAX R-05 (x2)
044800  +1 1874  HK4YDT DK1MAX JN58 (x3)
045315  +8 1043  HP1VS DK1MAX JN58 (x2)
045445  +6  906  K8WRB DK1MAX JN58
045530 +16  538  KR4HRN DK1MAX JN58 (x2)
045630 +12 2620  HC2GRC DK1MAX JN58 (x2)
050000  +7  538  KR4HRN DK1MAX JN58 (x2)
160m
UTC    dB Audio  Message
205745  +0 2356  RI1FJL DK1MAX R-21 (x2)
205830  -2 1172  DK1MAX DD7EE JO41
172545  +5 1594  RI1FJZ DK1MAX JN58 (x6)
173200  +2 2646  DK1MAX UA3ZUX KO90
164715  -6 1274  CQ DK1MAX JN58 (x4)
041715 -11 3268  9T0MD DK1MAX JN58
60m
UTC    dB Audio  Message
035645 +10 1881  HP/WE9G DK1MAX JN58 (x5)
035915 +11 1812  <...> DK1MAX R-12 (x5)
043345  +6 1237  9T0MD DK1MAX JN58 (x5)
80m
UTC    dB Audio  Message
181145  +0 2084  RI1FJL DK1MAX JN58 (x4)
043215 +16  609  3Z100PKP DK1MAX JN58 (x2)
183115 +10  910  RI1FJZ DK1MAX JN58 (x6)
190045  -5 1426  ZC4OL DK1MAX JN58 (x3)
20m
UTC    dB Audio  Message
165730 -24 3104  DK1MAX VU2FR R-15
165745  +6 2854  VU2FR DK1MAX RR73
165800 -24 3105  DK1MAX VU2FR R-15
165800 -16 2854  DK1MAX DJ0MAB JN49
165815 +15 2854  VU2FR DK1MAX RR73
165845 +17 2854  ZR4AAB DK1MAX -19 (x2)
165945 +18 2854  CQ DK1MAX JN58 (x3)
170615  +5  864  <...> DK1MAX JN58
170830  -3 1223  9M2DGA DK1MAX JN58 (x4)
10m
UTC    dB Audio  Message
105915  +3 1127  YO8XMT DK1MAX -02 (x2)
110015  +3 1127  CQ DK1MAX JN58
110045  +5 1127  SP9NSQ DK1MAX R+00 (x2)
110145  +5 1127  CQ DK1MAX JN58 (x8)
075945  -3 1028  YD0ABC DK1MAX R-17 (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