DK8MM — 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: JO53

Receiver-side FT8 activity involving DK8MM, decoded by SO8OO in southeastern Poland. 383 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 17 UTC dates in the available aggregate history. Observed between 2026-07-04 and 2026-11-04.

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 383 FT8 messages attributed to DK8MM as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (25%), followed by 20 m (24%) and 80 m (24%). Most decodes (56%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (92%); the estimated median was +6.7 dB.

Overview

383
Messages attributed
17
UTC dates decoded
53
Active 15-min windows
+6.7 dB
Estimated median S/N

Bands

First attributed message: 2026-07-04
Last attributed message: 2026-11-04 22:39 UTC

Observed FT8 message patterns

Attributed sample
383 messages
Active dates
17 UTC dates
Estimated median S/N
+6.7 dB
Estimated 10th-90th percentile
-7 to +20 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 21, strong (≥ -8 dB) 354.

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 DK8MM

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
JO53 · 180 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
841 km (approx.)
Last such locator decoded
2026-11-04 22:23 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 UTCBandDK8MM S/NCounterpartCounterpart S/NMsgsCapture
11-04 22:36 80m +21 / - AP5ARS - / -18 7 Partial capture
11-04 22:32 80m +21 / -4 DO9BAU +4 / -1 5 ✓ Full exchange observed
11-04 22:32 80m +22 / - SV5BYP -13 / -7 3 ✓ Closing observed
11-04 22:25 40m - / - IU5JAE -11 / - 2 Partial capture
11-04 22:23 40m +8 / - OA4ENG - / -14 3 ✓ Closing fragment
11-04 22:13 40m -2 / - BA3QIQ - / -14 2 ✓ Closing fragment
11-04 21:58 40m - / -14 BI3UPU -16 / - 2 Partial capture
11-04 21:54 80m +18 / - IK4TVP - / -14 2 ✓ Closing fragment
11-04 21:52 80m +20 / +4 EA8UP -8 / -9 5 ✓ Full exchange observed
11-04 21:50 80m - / - EW8DU +4 / - 8 Partial capture
11-04 21:50 80m +20 / - G4DBW +4 / -3 3 ✓ Closing observed
11-04 21:49 80m +22 / - MD0CCE +14 / -5 4 ✓ Full exchange observed
11-04 21:34 40m - / - IZ4EKI -22 / - 2 Partial capture
11-03 15:04 80m +12 / - EX7DY - / - 3 ✓ Closing fragment
11-03 14:50 40m +15 / - 9M2HUS - / - 2 Partial capture
11-03 14:39 80m +6 / - EX7DY - / - 3 Partial capture
10-31 23:21 160m +17 / - OH0Z - / -1 5 Partial capture
10-31 23:17 160m +2 / - UN8DSW - / -15 3 Partial capture
10-31 23:12 80m - / - G8OO 0 / - 6 Partial capture
10-31 23:12 80m - / - SP8HDC -5 / - 3 Partial capture
10-31 23:10 80m +24 / - CT3IQ - / -11 2 ✓ Closing fragment
10-31 23:09 80m - / -4 YO4NF +19 / - 2 Partial capture
10-31 23:08 80m +22 / +6 4O7CC +4 / -10 3 ✓ Full exchange observed
10-31 22:58 80m +20 / +8 4O4A +10 / -5 10 ✓ Full exchange observed
10-31 22:52 80m +18 / - AP2AM - / -5 7 ✓ Closing fragment
10-31 22:51 80m +16 / - 9V1YC - / -13 3 ✓ Closing fragment
10-31 22:12 160m +1 / - 6W/IK2HKT - / -12 2 Partial capture
10-31 22:01 160m +2 / - 6W/IK2HKT - / -20 8 Partial capture
10-31 21:59 160m -5 / - IK3/UY7LA - / - 3 Partial capture
10-31 21:56 160m -6 / - 4O7CC +13 / -1 3 ✓ Closing observed
10-31 21:49 80m +21 / +4 TC6TR -3 / - 3 Partial capture
10-31 21:46 80m +11 / - OD5ZZ - / -15 2 ✓ Closing fragment
10-31 21:30 160m +5 / - 6W/IK2HKT - / -23 12 Partial capture
10-31 19:42 80m +19 / - JE1FQV - / -15 2 ✓ Closing fragment
10-31 19:41 80m +24 / -11 JA4LXY -12 / -10 6 ✓ Full exchange observed
10-31 19:40 80m +23 / - JR3REX -20 / -18 3 ✓ Closing observed
10-31 19:38 80m +19 / - JA5BZL - / -21 3 ✓ Closing fragment
10-31 19:37 80m - / - OE3IPU +10 / - 2 Partial capture
10-31 19:08 40m - / - DL7ACA -6 / - 3 Partial capture
10-31 19:06 40m - / - UR9QQ -13 / - 2 Partial capture
10-31 19:01 40m -4 / - VJ6X - / -11 3 ✓ Closing fragment
10-31 18:57 40m +2 / - EY7BP - / - 6 Partial capture
10-30 14:03 40m +16 / - BG7BVP - / -15 2 Partial capture
10-30 14:01 40m +16 / 0 R1AV -10 / -7 5 ✓ Full exchange observed
10-30 14:00 40m +17 / - DL0HAM -2 / 0 5 ✓ Full exchange observed
10-30 13:59 40m +18 / - JE6WOQ - / -8 2 ✓ Closing fragment
10-30 13:58 40m +16 / - BG7BVI - / -9 3 ✓ Closing fragment
10-30 13:57 40m +18 / - BA5AN - / -14 2 ✓ Closing fragment
10-30 13:56 40m +14 / +8 UA4FKT +4 / -1 5 ✓ Full exchange observed
10-30 13:55 40m +14 / - JO4IPQ - / -16 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
223200 +21 2706  SV5BYP DK8MM -07 (x2)
223245 -13 1546  DK8MM SV5BYP 73
223245  +1 1902  DK8MM DO9BAU JO62
223300 +18 2706  DO9BAU DK8MM -01
223315  +6 1902  DK8MM DO9BAU R-04
223330 +24 2706  DO9BAU DK8MM RR73
223345  +5 1902  DK8MM DO9BAU 73
223615 +22 2737  AP5ARS DK8MM -18 (x7)
40m
UTC    dB Audio  Message
162445  +6 2127  DK8MM YO4NF -06
162445 -20 1654  DK8MM EC3A -13
213400 -24 1675  DK8MM IZ4EKI JN54 (x2)
215830 -16 1181  DK8MM BI3UPU OM64 (x2)
220845  -9 2725  BX2AQN DK8MM -15 (x2)
221315  -1 2725  BA3QIQ DK8MM -14 (x2)
222315  +7 2743  OA4ENG DK8MM JO53 (x3)
222530 -10 2744  DK8MM IU5JAE JN53 (x2)
160m
UTC    dB Audio  Message
220515  +9  545  6W/IK2HKT DK8MM R-20 (x5)
221330 +18 2838  DK8MM UA3ZUX KO90
231715  +0 2544  UN8DSW DK8MM JO53 (x3)
232130 +17 2648  OH0Z DK8MM -01 (x2)
232245  +3 2648  UN8DSW DK8MM -18
232400 +17 2648  OH0Z DK8MM +03 (x3)
10m
UTC    dB Audio  Message
075700  -7  415  IQ4JO DK8MM RR73 (x2)
075745  -5  415  DK8MM LZ2VQ KN23
075900  -8  415  CQ DK8MM JO53
080000 -10  415  EA3AKY DK8MM RR73
080045 -12  579  DK8MM IK4JPP R-07
080100  -7  415  IK4JPP DK8MM RR73
080130  -8  415  F4BJN DK8MM +00
081145  -2  702  DK8MM DJ3HW R-18 (x2)
081715  -6 2201  DK8MM DK8ZZ R-05 (x2)
083600 -10  414  DK8MM DK7ZT -07
103415  -2  615  DK8MM EA3AYK JN11 (x2)
20m
UTC    dB Audio  Message
144015 -12 2142  BD6IIC DK8MM R-11
144800  -7 2350  DK8MM R4FDW +05
145015  +7 2140  R4FDW DK8MM R-03 (x2)
145115  +0 2140  BH1OHX DK8MM -15 (x2)
145215  -5 2140  CQ DK8MM JO53                         a1
145345  +1 2140  YO5PHL DK8MM RR73
145415  +3 2140  BI1AFK DK8MM -14 (x3)
152315  -8  411  JH6KFY DK8MM JO53 (x4)

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

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