DB4MLA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO40

Receiver-side FT8 activity involving DB4MLA, decoded by SO8OO in southeastern Poland. 261 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-24 and 2026-09-01.

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 261 FT8 messages attributed to DB4MLA as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (53%), followed by 80 m (44%) and 40 m (3%). Several six-hour UTC windows tied for the largest share (57%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (62%); the estimated median was -5 dB.

Overview

261
Messages attributed
13
UTC dates decoded
32
Active 15-min windows
-5 dB
Estimated median S/N

Bands

80m · 114 40m · 8 20m · 139
First attributed message: 2026-06-24
Last attributed message: 2026-09-01 19:02 UTC

Observed FT8 message patterns

Attributed sample
261 messages
Active dates
13 UTC dates
Estimated median S/N
-5 dB
Estimated 10th-90th percentile
-16 to +6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 30, moderate (-15 to -9 dB) 70, strong (≥ -8 dB) 161.

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 DB4MLA 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 DB4MLA

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
JO40 · 149 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
911 km (approx.)
Last such locator decoded
2026-09-01 19:01 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 UTCBandDB4MLA S/NCounterpartCounterpart S/NMsgsCapture
09-01 19:28 80m - / - OK1FED -13 / - 2 Partial capture
09-01 19:23 80m - / - HA7TM +5 / - 3 Partial capture
09-01 19:17 80m - / - OE1KLA -5 / - 3 Partial capture
09-01 19:13 80m - / -13 RN6HK -12 / - 5 ✓ Closing fragment
09-01 19:12 80m - / - DL9KM -8 / - 7 Partial capture
09-01 19:11 80m - / - HA7TM +6 / - 3 Partial capture
09-01 19:07 80m - / - DK7UY -11 / - 3 Partial capture
09-01 19:07 80m - / - DL4YDR -7 / - 2 Partial capture
09-01 19:05 80m - / -13 LZ2VQ -9 / - 3 ✓ Closing fragment
09-01 19:01 80m -3 / - DL2RN - / -9 4 ✓ Closing fragment
09-01 18:59 80m -12 / +5 DO6AZ -7 / - 4 Partial capture
09-01 18:41 40m - / -3 UT2PC +4 / - 2 ✓ Closing fragment
09-01 18:37 40m - / -8 SQ8GMW -7 / - 3 Partial capture
08-29 19:06 80m +6 / - IN3IZQ - / - 2 Partial capture
08-29 18:30 20m +3 / - RI1FJL - / -16 2 Partial capture
08-23 09:07 20m -7 / -7 SM7MDI -19 / -14 6 Partial capture
08-23 09:04 20m -11 / - M9NTS -6 / -20 5 ✓ Closing observed
08-23 09:02 20m -14 / -18 YO5PHL +3 / -17 6 ✓ Full exchange observed
08-23 09:00 20m - / -14 F1PBZ +14 / - 3 Partial capture
08-23 08:57 20m -16 / -12 M9NTS -4 / -25 4 Partial capture
08-23 08:54 20m - / - F1MXE +6 / - 4 Partial capture
08-23 08:50 20m -9 / - OY1HJ - / -19 2 ✓ Closing fragment
08-23 08:48 20m -10 / - UT7UJ +9 / - 4 ✓ Full exchange observed
08-23 08:42 20m -12 / - UR5VPR -1 / -14 3 ✓ Closing observed
08-23 08:39 20m -15 / -1 RD3FY -2 / -15 7 ✓ Full exchange observed
08-23 08:37 20m -9 / - EA4NX - / -14 3 ✓ Closing fragment
08-23 08:35 20m -8 / - HA5KN - / -7 3 ✓ Closing fragment
08-23 08:33 20m -4 / - SH6ECJ - / -18 2 ✓ Closing fragment
08-23 08:29 20m - / -15 TA3NK -7 / - 3 ✓ Closing fragment
08-23 08:26 20m +5 / -18 YO8RCA +12 / -8 10 ✓ Full exchange observed
08-23 08:21 20m -7 / - KQ4MHD - / -19 3 ✓ Closing fragment
08-23 08:20 20m - / - UA3PAB -2 / - 2 Partial capture
08-18 14:33 40m - / - UA4FKT -6 / - 2 Partial capture
08-18 14:32 40m - / - HA1DUQ -21 / - 2 Partial capture
08-18 14:20 40m - / -3 DL2USR -11 / - 3 ✓ Closing fragment
08-16 12:36 20m -6 / - IK0XBU - / -1 6 Partial capture
08-16 10:11 20m -6 / -2 DA0LH -16 / +2 8 ✓ Full exchange observed
08-16 04:56 80m - / - SP9UPH +10 / - 3 Partial capture
08-16 04:55 80m - / - DL8TV -4 / - 2 Partial capture
08-16 04:54 40m - / - OZ1HYM -12 / - 3 Partial capture
08-16 04:52 80m - / -3 DL3MIB +7 / - 7 ✓ Closing fragment
08-16 04:51 80m - / - DL9KM -11 / - 7 Partial capture
08-16 04:51 80m - / +2 IU1TLG -18 / - 2 ✓ Closing fragment
08-16 04:50 80m - / - OZ1HYM -9 / - 5 Partial capture
08-16 04:49 80m - / - DO9BAU -2 / - 26 Partial capture
08-16 04:48 80m - / +1 DJ4WM -16 / - 3 ✓ Closing fragment
08-16 04:47 80m - / - OZ1HYM -14 / - 2 Partial capture
08-16 04:47 80m - / - SP9UPH +11 / - 5 Partial capture
08-16 04:46 80m - / 0 F1PBZ -17 / - 6 Partial capture
08-16 04:46 80m - / - LZ2VQ -24 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
191415  -6 1215  DB4MLA DL9KM JN68
191445  -9  203  DB4MLA RN6HK LN14
191445  -9 2057  DB4MLA R3EDI KO82
191445  -5 1215  DB4MLA DL9KM JN68
191515 -16  203  DB4MLA RN6HK R-13
191515  -8 1215  DB4MLA DL9KM JN68
191545 -12  203  DB4MLA RN6HK 73
191715  -3 2851  DB4MLA OE1KLA JN88 (x3)
192315  +6  209  DB4MLA HA7TM JN97 (x3)
192815 -14 2243  DB4MLA OK1FED JO70 (x2)
40m 
UTC    dB Audio  Message
045545 -13 1215  DB4MLA OZ1HYM JO44
183000  -9 2678  DB4MLA RX3DPK/LH +09
183030  -8 2678  DB4MLA RR73; RC6OT <...> -04
142000 -15  234  DB4MLA DL2USR JO71 (x3)
143200 -20 1305  DB4MLA HA1DUQ JN86 (x2)
143300  -5 2764  DB4MLA UA4FKT LO23 (x2)
183745  -9  810  DB4MLA SQ8GMW -08 (x3)
184115  +5  999  DB4MLA UT2PC -03 (x2)
20m 
UTC    dB Audio  Message
090430  -9  275  DB4MLA M9NTS IO81
090445 -17  207  M9NTS DB4MLA -20 (x3)
090615  -6  207  CQ DB4MLA JO40 (x2)
090700 -21 2094  DB4MLA SM7MDI JO76
090715  -1  207  SM7MDI DB4MLA -14 (x3)
090830 -20 2094  DB4MLA SM7MDI R-07 (x2)
191330 -15  617  DB4MLA EA4LL IM88
183045  +1 2843  RI1FJL DB4MLA R-16 (x2)
60m 
UTC    dB Audio  Message
194630  +6  458  DB4MLA ON7GB JO21

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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