DF9ML — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO41

Receiver-side FT8 activity involving DF9ML, decoded by SO8OO in southeastern Poland. 157 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 18 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-07-23.

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 157 FT8 messages attributed to DF9ML as the transmitting token by decoded message structure across 18 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (71%), followed by 40 m (28%) and 80 m (1%). Most decodes (57%) fell within the six-hour window 07:00-13:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (90%); the estimated median was -1 dB.

Overview

157
Messages attributed
18
UTC dates decoded
53
Active 15-min windows
-1 dB
Estimated median S/N

Bands

80m · 2 40m · 44 20m · 111
First attributed message: 2026-06-09
Last attributed message: 2026-07-23 08:03 UTC

Observed FT8 message patterns

Attributed sample
157 messages
Active dates
18 UTC dates
Estimated median S/N
-1 dB
Estimated 10th-90th percentile
-8 to +6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 142.

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 DF9ML 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 DF9ML

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
JO41 · 124 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
916 km (approx.)
Last such locator decoded
2026-07-23 08:03 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 UTCBandDF9ML S/NCounterpartCounterpart S/NMsgsCapture
07-23 11:57 20m - / +8 TK5K 0 / - 2 ✓ Closing fragment
07-23 07:28 20m -12 / - SP9BBZ - / -9 3 Partial capture
07-22 16:33 20m -1 / - R2DR -20 / -4 3 ✓ Closing observed
07-22 16:22 20m - / - F6EWW -18 / - 2 Partial capture
07-19 20:28 80m - / - DO2RG -1 / - 3 ✓ Closing fragment
07-19 20:26 80m - / +6 HB9AKB -2 / - 2 ✓ Closing fragment
07-19 20:22 80m - / -5 DH5BO +1 / - 2 ✓ Closing fragment
07-19 20:18 80m - / +1 OH2BVT +2 / - 2 ✓ Closing fragment
07-19 20:05 80m - / -11 SP6FME +7 / - 3 ✓ Closing fragment
07-19 20:03 80m - / -18 9A4ZM +3 / - 3 Partial capture
07-19 20:02 80m - / -4 DB3OI -11 / - 2 ✓ Closing fragment
07-19 19:54 80m - / - IK2TPX -8 / - 2 ✓ Closing fragment
07-19 19:52 80m - / -8 IK4OLQ -2 / - 2 ✓ Closing fragment
07-19 19:31 80m - / -17 OH1CIN -3 / - 2 ✓ Closing fragment
07-18 19:28 80m - / +2 DG0OFT -6 / - 2 ✓ Closing fragment
07-18 19:08 80m - / -4 DL1UDO -18 / - 2 ✓ Closing fragment
07-18 19:07 80m - / -14 DO1NJN -16 / - 2 ✓ Closing fragment
07-18 19:06 80m - / +7 DO7EC -13 / - 5 ✓ Closing fragment
07-18 18:56 80m - / -3 DO7LIA -8 / - 2 ✓ Closing fragment
07-18 18:40 80m - / -14 DL6JOG -6 / - 5 Partial capture
07-18 10:22 40m - / - EW3DF -4 / - 2 Partial capture
07-17 12:38 20m - / -8 SP4JEU -7 / - 3 ✓ Closing fragment
07-14 14:29 20m - / -10 IU2PCR -10 / - 3 ✓ Closing fragment
07-10 17:53 20m - / -14 EW1MN -18 / - 2 ✓ Closing fragment
07-08 19:36 40m - / -1 IQ4JO -9 / - 3 ✓ Closing fragment
07-08 19:06 40m -7 / - R4DB -21 / -11 2 ✓ Closing observed
07-06 13:58 20m - / - IK2WRI -12 / - 2 ✓ Closing fragment
06-26 08:27 20m -2 / - II3DRC - / - 2 Partial capture
06-26 07:12 20m - / - DL9KM -14 / - 3 Partial capture
06-25 21:04 20m - / -8 IQ3UCY -20 / - 2 Partial capture
06-17 10:24 40m -5 / +6 DF1KG -13 / - 2 Partial capture
06-17 10:18 40m - / -19 OE6GBG -3 / - 11 ✓ Closing fragment
06-17 10:11 40m - / -6 SP1TMH -5 / - 2 ✓ Closing fragment
06-17 10:06 40m - / -1 S57BTI +6 / - 2 ✓ Closing fragment
06-17 07:42 40m - / +1 OZ9FF -4 / - 2 ✓ Closing fragment
06-16 18:41 40m +2 / -2 DD1OO -1 / +2 4 ✓ Full exchange observed
06-16 18:36 40m +3 / - IQ2PV - / - 7 Partial capture
06-16 18:34 40m - / +10 II3RTHI -2 / - 2 Partial capture
06-16 18:31 40m +1 / - G1HHX - / - 2 Partial capture
06-16 18:31 40m +6 / - SQ8V -7 / -7 3 ✓ Closing observed
06-16 18:27 40m +7 / - IQ2PV - / - 3 Partial capture
06-16 18:22 40m 0 / - HA5LB - / -12 2 ✓ Closing fragment
06-16 17:54 40m +8 / - IQ2DB +10 / +1 3 ✓ Closing observed
06-16 17:49 40m +6 / - IQ2UL - / -3 4 Partial capture
06-16 17:44 40m - / +2 IQ3UCY +3 / - 2 ✓ Closing fragment
06-16 17:41 40m - / +1 IQ0VT -12 / - 3 ✓ Closing fragment
06-16 11:22 20m - / +8 RA3DI 0 / - 2 ✓ Closing fragment
06-16 11:17 20m - / -9 G0VFB +4 / - 2 ✓ Closing fragment
06-15 16:23 20m - / -10 IQ2UL -6 / - 2 ✓ Closing fragment
06-14 13:07 20m - / -7 SP4AVG +2 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
163345  -1  500  R2DR DF9ML R-04
163400 -19 2175  DF9ML R2DR RR73 (x2)
071615  -7  772  LB6CG DF9ML JO41
072830 -13  832  SP9BBZ DF9ML JO41 (x3)
073415 -15 1119  DF9ML IZ4VSD -01
074200 -11  841  SQ4FXT DF9ML JO41
074330 -11  841  R3MBN DF9ML JO41
074615 -12 2595  DF9ML OE3LOA RR73
075145  -6  841  RZ3EM DF9ML JO41
080315  -9  400  <...> DF9ML JO41
115730  +1  533  DF9ML TK5K +08 (x2)
80m 
UTC    dB Audio  Message
200445  +5  793  DF9ML 9A4ZM R-18
200545  +9  797  DF9ML SP6FME JO90 (x3)
200915  +7  661  DF9ML SQ9PBV -07
201845  +5  500  DF9ML OH2BVT +01 (x2)
201945 -10 1335  DF9ML 9A7BB -12
202245  +2  336  DF9ML DH5BO -05 (x2)
202645  -5 1758  DF9ML HB9AKB +06 (x2)
202845  -1 1958  DF9ML DO2RG RR73 (x3)
40m 
UTC    dB Audio  Message
190630  -7  670  R4DB DF9ML R-11
193430  -4  335  CQ DF9ML JO41                         a1 (x2)
193645  -8 2733  DF9ML IQ4JO JN63 (x3)
193900  +0  395  CQ DF9ML JO41 (x2)
184115 -15 1077  DF9ML IU2SLI -04
172630 -12  340  CQ DF9ML JO41                         a1 (x3)
171215  -2 2968  DF9ML SQ2GXO +10
102200  -3  439  DF9ML EW3DF KO22 (x2)
10m 
UTC    dB Audio  Message
125215  -9  720  DF9ML SV2CLJ 73

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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