DL4MAX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO62

Receiver-side FT8 activity involving DL4MAX, decoded by SO8OO in southeastern Poland. 5 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-21.

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 5 FT8 messages attributed to DL4MAX as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -20 dB; no usual signal pattern is inferred.

Overview

5
Messages attributed
1
UTC dates decoded
2
Active 15-min windows
-20 dB
Estimated median S/N

Bands

40m · 5
First attributed message: 2026-08-21
Last attributed message: 2026-08-21 18:22 UTC

Observed FT8 message patterns

Attributed sample
5 messages
Active dates
1 UTC dates
Estimated median S/N
-20 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 0.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with DL4MAX in decoded directed-looking exchanges:

Most frequent locator attributed to DL4MAX

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
JO62 · 2 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
675 km (approx.)
Last such locator decoded
2026-08-21 18:22 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 UTCBandDL4MAX S/NCounterpartCounterpart S/NMsgsCapture
08-21 18:01 40m - / -23 DK1GP +2 / - 2 ✓ Closing fragment
08-21 17:52 40m - / -20 9A4ZM -1 / - 3 ✓ Closing fragment
08-21 17:44 40m -20 / -22 DK0KG -7 / -8 5 ✓ Full exchange observed
08-21 17:26 40m - / -13 DK9BM +2 / - 2 ✓ Closing fragment
08-21 15:08 40m - / -25 DL1NEO +2 / - 5 Partial capture
08-21 14:55 40m - / -11 DL5OAH -14 / - 2 ✓ Closing fragment
08-21 14:52 40m - / -17 HA3KHB -11 / - 3 ✓ Closing fragment
08-21 14:45 40m - / -19 OZ1DYI -8 / - 8 Partial capture
08-21 14:35 40m - / -18 DL1DEU -11 / - 4 ✓ Closing fragment
08-21 14:34 40m - / -7 DL3LBK -9 / - 3 ✓ Closing fragment
08-21 10:38 40m - / - DA1ST -17 / - 3 ✓ Closing fragment
08-16 19:15 40m - / -21 DK7XD -22 / - 2 Partial capture
08-16 19:05 40m - / -21 DL8TV -6 / - 6 ✓ Closing fragment
08-16 19:00 40m - / - DL7ACA -9 / - 5 Partial capture
08-16 18:55 40m - / - DL8TV -9 / - 2 Partial capture
08-16 18:29 40m - / -20 OK1FED -6 / - 2 ✓ Closing fragment
07-25 12:04 20m - / -5 DL8LRZ -18 / - 3 Partial capture
07-25 11:50 20m - / -18 DL1HQN -10 / - 3 ✓ Closing fragment
07-25 11:38 20m - / -14 PD0IFI -9 / - 4 Partial capture
07-25 11:31 20m - / -14 IW5DNZ +5 / - 4 ✓ Closing fragment
07-25 11:23 20m - / - PD4FL -15 / - 2 Partial capture
07-25 11:15 20m - / -15 DH1PS -16 / - 2 ✓ Closing fragment
07-25 11:11 20m - / -10 G0RQL -12 / - 3 ✓ Closing fragment
07-25 11:07 20m - / -8 PD5B -2 / - 3 ✓ Closing fragment
07-25 10:36 20m - / -13 IZ3LES -14 / - 3 Partial capture
07-25 10:24 20m - / -15 EB3JT -16 / - 2 Partial capture
07-05 18:15 20m - / - UR4QWW -17 / - 4 Partial capture
07-05 17:47 20m - / -18 9A4ZM -11 / - 3 ✓ Closing fragment
07-05 17:32 20m - / -11 HB9SDO -17 / - 4 Partial capture
07-05 08:21 20m - / -17 OE4RGC -1 / - 3 ✓ Closing fragment
07-05 07:27 20m - / -18 IR1WWA -15 / - 3 ✓ Closing fragment
07-04 16:52 20m - / -15 EA1A -23 / - 2 ✓ Closing fragment
07-04 16:38 20m - / -23 OD5KU +2 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
172645  +2 2863  DL4MAX DK9BM RR73
174445 -10 1415  DL4MAX DL6REX JO40
174445  -8 1619  DL4MAX DK0KG JN49
174500 -20 1415  DK0KG DL4MAX -08
174515  -4 1619  DL4MAX DK0KG R-22
174530 -19 1415  DK0KG DL4MAX RR73
174545  -8 1618  DL4MAX DK0KG 73
174900 -20 1415  CQ DL4MAX JO62
175030 -23 1415  SQ8V DL4MAX -04
175245  -3 1412  DL4MAX 9A4ZM JN86 (x3)
180115  +2 2807  DL4MAX DK1GP R-23 (x2)
182200 -23 1683  CQ DL4MAX JO62
20m 
UTC    dB Audio  Message
113200  +6 2990  DL4MAX IW5DNZ R-14 (x2)
113330 -20 1640  DL4MAX F5RRS 73
113530 -16 1107  DL4MAX M9NTS 73
113800 -11 1138  DL4MAX PD0IFI JO32 (x4)
115030 -11 1418  DL4MAX DL1HQN JO61 (x3)
115600 -10  728  DL4MAX GM4YTD R-16
120415 -17 1153  DL4MAX DL8LRZ JO61 (x3)

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