DK4ET — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO52

Receiver-side FT8 activity involving DK4ET, decoded by SO8OO in southeastern Poland. 1,143 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 36 UTC dates in the available aggregate history. Observed between 2026-07-14 and 2026-09-17.

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 1,143 FT8 messages attributed to DK4ET as the transmitting token by decoded message structure across 36 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (50%), followed by 40 m (36%) and 20 m (14%). Most decodes (92%) fell within the six-hour window 20:00-02:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9.3 dB.

Overview

1,143
Messages attributed
36
UTC dates decoded
133
Active 15-min windows
-9.3 dB
Estimated median S/N

Bands

80m · 574 40m · 413 20m · 156
First attributed message: 2026-07-14
Last attributed message: 2026-09-17 22:15 UTC

Observed FT8 message patterns

Attributed sample
1,143 messages
Active dates
36 UTC dates
Estimated median S/N
-9.3 dB
Estimated 10th-90th percentile
-18 to +0.7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 209, moderate (-15 to -9 dB) 411, strong (≥ -8 dB) 523.

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 DK4ET 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 DK4ET

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
JO52 · 637 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
803 km (approx.)
Last such locator decoded
2026-09-17 22:15 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 UTCBandDK4ET S/NCounterpartCounterpart S/NMsgsCapture
09-21 01:17 40m - / -13 OD5ZZ -12 / - 3 Partial capture
09-21 01:10 40m - / -20 RY3F 0 / - 3 ✓ Closing fragment
09-20 23:28 40m - / -15 TF8KW -15 / - 2 Partial capture
09-20 22:51 40m - / -13 EA1FE -18 / - 2 ✓ Closing fragment
09-19 01:26 40m - / -12 KP4LCA -7 / - 2 ✓ Closing fragment
09-19 01:23 40m - / -5 SV3AUW -4 / - 2 ✓ Closing fragment
09-19 01:07 40m - / -8 SV3AUW -6 / - 2 Partial capture
09-19 01:03 40m - / -8 UA4FKT +8 / - 4 ✓ Closing fragment
09-18 23:51 40m - / -2 SV3AUW -15 / - 2 Partial capture
09-18 23:47 40m - / -10 IT9KXK -5 / - 2 ✓ Closing fragment
09-18 23:39 40m - / -11 EA5KB -11 / - 2 ✓ Closing fragment
09-17 22:13 40m -18 / - G0OYR - / - 5 Partial capture
09-17 22:00 40m -10 / - TN8GD - / - 4 Partial capture
09-17 21:54 40m -7 / -21 HZ1TT -4 / -10 7 ✓ Full exchange observed
09-17 21:52 40m -12 / -12 F4IVG -21 / - 2 Partial capture
09-17 21:49 40m -18 / - G8KHF - / -12 2 Partial capture
09-17 21:47 40m -14 / - M0LAD - / - 3 Partial capture
09-17 21:45 40m -13 / - 9K2WA - / -17 4 ✓ Closing fragment
09-16 23:23 40m - / -16 GM6URC -11 / - 4 ✓ Closing fragment
09-16 23:21 40m - / -10 F5MYK -9 / - 3 ✓ Closing fragment
09-16 23:14 40m - / -18 HZ1TT -11 / - 3 Partial capture
09-16 22:58 40m - / -9 EA1Y -6 / - 2 ✓ Closing fragment
09-16 22:47 80m -10 / - ON5WR - / - 2 Partial capture
09-16 22:46 80m -6 / - DL6ZFG - / - 3 Partial capture
09-16 22:41 80m -11 / -20 YO4NF +15 / -16 8 ✓ Full exchange observed
09-16 22:38 80m -13 / -7 ON1BH -15 / -2 5 ✓ Full exchange observed
09-16 22:36 80m -10 / 0 DF2RG -6 / -6 6 ✓ Full exchange observed
09-16 22:33 80m - / -3 5B4AMM -1 / - 3 ✓ Closing fragment
09-15 21:11 40m - / -16 IZ8GUU +2 / - 2 ✓ Closing fragment
09-13 22:27 40m - / -20 SV9QWC -8 / - 2 Partial capture
09-13 22:25 40m - / -12 EX7CQ -4 / - 2 ✓ Closing fragment
09-12 23:35 40m - / -9 R6HV/P -12 / - 2 Partial capture
09-12 23:31 40m - / -21 WA2TMC -9 / - 2 ✓ Closing fragment
09-12 23:14 40m - / -17 F5OYA/P -9 / - 7 ✓ Closing fragment
09-12 23:13 40m - / -6 SM2LKW -11 / - 3 ✓ Closing fragment
09-12 22:44 40m - / -10 EA1Y -14 / - 2 Partial capture
09-11 23:53 40m - / -16 MM8FKF -9 / - 3 Partial capture
09-09 22:35 40m -13 / - BA4IE - / - 2 Partial capture
09-09 22:26 40m -12 / -16 RC9WC 0 / -17 5 ✓ Full exchange observed
09-09 22:24 40m -16 / - M8EUF - / -11 5 ✓ Closing fragment
09-09 22:21 40m -15 / - 7Z1BQ - / -15 3 Partial capture
09-09 22:16 40m - / - UR9QQ -17 / - 2 ✓ Closing fragment
09-09 22:13 40m - / -15 7Z1BQ -14 / - 2 ✓ Closing fragment
09-09 22:04 40m -16 / -16 OD5ZZ -10 / -17 7 ✓ Full exchange observed
09-09 21:50 40m - / +8 HB9EFK -8 / - 2 ✓ Closing fragment
09-08 22:24 40m - / - LZ1KU +1 / - 2 ✓ Closing fragment
09-08 22:05 40m -21 / -9 IK3SCB -16 / -18 3 ✓ Full exchange observed
09-05 20:48 40m -7 / -13 EA5JLN -24 / - 2 Partial capture
09-01 22:46 80m - / 0 DO3KTY 0 / - 2 Partial capture
09-01 22:39 80m -3 / - F1PBZ - / - 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
012645  -6  658  DK4ET KP4LCA -12 (x2)
013015 -11  647  DK4ET VO1AW -05
013945  +0 1056  DK4ET TA7I -03 (x2)
225145 -21 1749  DK4ET EA1FE -13 (x2)
232800 -15  937  DK4ET TF8KW -15 (x2)
011015  +2 1291  DK4ET RY3F -20 (x3)
011745 -12  570  DK4ET OD5ZZ -13 (x3)
80m 
UTC    dB Audio  Message
224030 -18  349  DK4ET ON1BH RR73
224045 -15  952  ON1BH DK4ET 73
224100 +18  952  DK4ET YO4NF -20 (x2)
224215  -5  862  YO4NF DK4ET R-16 (x4)
224400 +19  862  DK4ET YO4NF RR73
224415  -8  862  YO4NF DK4ET 73
224615  -5  862  DL6ZFG DK4ET JO52 (x3)
224745 -11  862  ON5WR DK4ET JO52 (x2)
20m 
UTC    dB Audio  Message
231245 -10 2066  DK4ET KE2FSC RR73
214130  -8  744  OZ1LHK DK4ET 73
214330  -5  744  DL5KMR DK4ET 73
214415 -10 2631  DK4ET AD9GE -15 (x2)
214630  -1 1116  SV1TUB DK4ET JO52
214700  -6 1116  RI1FJL DK4ET JO52 (x2)
215200  -4 1122  ND9M DK4ET R-17 (x3)
215400  -8  755  OZ1LHK DK4ET R+03
215530  -8  755  M3BWF DK4ET JO52 (x2)
215630  -4  755  AO5FSB DK4ET JO52
10m 
UTC    dB Audio  Message
172800 -23 1909  DK4ET IT9KHX RR73
112800 -23 1716  DK4ET D2UY RR73
112930 -22 1809  DK4ET SV1CQN RR73
202415  -5 1779  DK4ET EA8UP -16 (x2)
202800 -15  908  DK4ET RD7LO -09 (x2)
130645 -13 1174  DK4ET F5SZY IN96 (x3)
203115 -17 1944  DK4ET IK4TVP +24 (x5)

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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