OK1FED — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Czech Republic Most frequent locator attributed to this token: JN88

Receiver-side FT8 activity involving OK1FED, decoded by SO8OO in southeastern Poland. 2,435 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 77 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-11.

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 2,435 FT8 messages attributed to OK1FED as the transmitting token by decoded message structure across 77 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (74%), followed by 80 m (21%) and 20 m (3%). Most decodes (90%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (73%); the estimated median was -3 dB.

Overview

2,435
Messages attributed
77
UTC dates decoded
300
Active 15-min windows
-3 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-10-11 20:09 UTC

Observed FT8 message patterns

Attributed sample
2,435 messages
Active dates
77 UTC dates
Estimated median S/N
-3 dB
Estimated 10th-90th percentile
-13.3 to +10.1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 143, moderate (-15 to -9 dB) 513, strong (≥ -8 dB) 1,779.

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 OK1FED

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
JN88 · 1,107 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
383 km (approx.)
Last such locator decoded
2026-10-10 19:38 UTC

Other locator fields attributed to this token: JO70 (427).

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 UTCBandOK1FED S/NCounterpartCounterpart S/NMsgsCapture
10-11 20:08 80m -5 / -11 II5GG +3 / +4 5 ✓ Full exchange observed
10-11 20:02 80m -2 / - M9YDD - / - 2 Partial capture
10-10 19:34 80m - / -9 DH6BF +4 / - 2 Partial capture
10-10 19:08 80m -2 / - EO210WLP - / - 9 Partial capture
10-10 18:31 80m -9 / -11 DO2GGH +6 / +6 4 ✓ Full exchange observed
10-10 18:25 80m -2 / - DC0GL -2 / +3 7 ✓ Closing observed
10-10 18:04 80m 0 / - HF40BLP - / - 6 Partial capture
10-10 18:01 80m -3 / - RN3DDW/P - / - 3 Partial capture
10-10 17:59 80m -5 / - HF40BLP - / - 3 Partial capture
10-10 17:54 80m +2 / - EO210WLP - / - 7 Partial capture
10-10 17:48 80m - / -13 EO210WLP -4 / - 4 Partial capture
10-10 17:45 80m 0 / - DB100FT - / -6 2 Partial capture
10-06 19:16 80m +10 / -7 DH3KR/P +8 / +9 13 ✓ Full exchange observed
10-06 18:13 80m -2 / - II5GG - / - 5 Partial capture
10-06 18:09 80m -3 / - II5GG - / - 2 Partial capture
10-06 16:58 40m +2 / - RU6UR/QRP - / -19 2 Partial capture
10-06 16:58 40m - / -18 TA4/DL9CA -12 / - 2 Partial capture
10-06 16:54 40m +5 / - BG0FQU - / - 6 Partial capture
10-06 16:47 40m +5 / - DJ6OI/P - / -6 8 Partial capture
10-06 16:46 40m +9 / - DF4JY - / -13 2 ✓ Closing fragment
10-06 16:44 40m +8 / - BD8ELZ - / -25 3 ✓ Closing fragment
10-05 19:38 80m +7 / - TF4M - / - 5 Partial capture
10-05 19:37 80m 0 / - EC5M - / - 2 Partial capture
10-05 19:30 40m - / -19 F5JAE -7 / - 5 ✓ Closing fragment
10-05 19:21 80m +5 / - DO6THI - / -11 7 ✓ Closing fragment
10-05 19:19 80m +2 / 0 LY6SPJ -9 / -9 5 ✓ Full exchange observed
10-05 19:18 80m -4 / - SP5DFK/QRP - / - 2 Partial capture
09-28 17:37 40m - / -13 IK2IPY +8 / - 4 Partial capture
09-28 17:26 40m -6 / - ZL3TX - / -20 19 ✓ Closing fragment
09-28 17:23 40m - / -9 DM1SV +2 / - 2 ✓ Closing fragment
09-28 17:18 40m -14 / -7 TA2VUZ -10 / -3 3 ✓ Full exchange observed
09-28 17:12 40m -3 / - ZL3TX - / - 11 Partial capture
09-28 17:10 40m -11 / - SP5MIG - / - 2 Partial capture
09-28 17:09 40m -12 / - DL2GP - / -11 2 ✓ Closing fragment
09-28 17:02 40m -2 / - HF100PKP - / -2 2 Partial capture
09-28 16:55 40m -4 / - HF100PKP - / - 9 Partial capture
09-28 16:49 40m +3 / - 9A5MP - / -17 6 ✓ Closing fragment
09-28 16:46 40m +6 / +1 OK1PHM +2 / -3 6 ✓ Full exchange observed
09-28 16:43 40m +9 / - OZ7CL -6 / -3 5 ✓ Closing observed
09-25 19:20 80m - / - F4BYA +6 / - 2 Partial capture
09-25 19:19 80m +14 / - DL9DAJ -12 / -6 6 Partial capture
09-25 19:05 80m -2 / - DK2MAX - / +1 9 ✓ Closing fragment
09-25 18:57 80m -6 / - GX7RAF/P - / -2 4 Partial capture
09-25 18:08 80m +4 / -7 DO9PV -4 / +3 6 ✓ Full exchange observed
09-25 17:02 80m +11 / -1 DO2NM -8 / -1 5 ✓ Full exchange observed
09-24 18:30 160m -4 / - RI1FJZ - / - 2 Partial capture
09-24 18:29 80m - / - DM5ME -3 / - 3 Partial capture
09-24 18:26 80m - / 0 DO1ID +1 / - 3 Partial capture
09-24 18:26 80m - / - RA6OY -6 / - 6 Partial capture
09-24 18:21 80m +5 / 0 DB1AD -10 / -9 13 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
192345  -9  876  DL4RE OK1FED 73
192645  -8  876  DO5SMH OK1FED JN88
193400  +7 2803  OK1FED DH6BF -09 (x2)
193645 -10 1380  CQ DL OK1FED JN88 (x3)
195815  -3 1059  SM7TZK OK1FED JO70
200245  -1 1072  M9YDD OK1FED JO70 (x2)
200830  -5 1848  II5GG OK1FED JO70
200845  +2 1572  OK1FED II5GG -11
200900  -6 1848  II5GG OK1FED R+04
200915  +4 1572  OK1FED II5GG RR73
200930  -5 1848  II5GG OK1FED 73
40m
UTC    dB Audio  Message
165145  -1  850  DJ6OI/P OK1FED R-06
165415  +4  850  BG0FQU OK1FED JO70 (x6)
165815 -10  487  OK1FED TA4/DL9CA -18
165830  +0 1179  RU6UR/QRP OK1FED JO70
165845 -13  487  OK1FED TA4/DL9CA -11
165900  +3 1179  RU6UR/QRP OK1FED R-19
165930  +2 1180  ZL1RPC/P OK1FED R-19
170045 +12  981  BG0FQU OK1FED JO70
183415  +3 2363  OK1FED HB9SPACE -05
190300 -14  241  OK1FED EA3FHP JN11
160m
UTC    dB Audio  Message
202645  +0  943  DL7UKM OK1FED JN88 (x4)
193045 -15 1169  RI1FJZ OK1FED JO70 (x7)
165000 -12  854  LA9GX OK1FED R-09 (x2)
183045  -8  925  RI1FJZ OK1FED JO70 (x2)
10m
UTC    dB Audio  Message
132330 -12  672  OK1FED PD1DRE RR73
132445  -5  647  OK1FED DL750RTG -03
132845 -12 1355  OK1FED DN9CHV -04 (x2)
082445 -17 1538  OK1FED UR9QQ 73
082445  -4  830  OK1FED UR5EPZ KN78
20m
UTC    dB Audio  Message
180200 -14 1624  <...> OK1FED JN88 (x2)
180300 -14 1624  <AM26DARK> OK1FED JN88 (x4)
180630  +5  779  <...> OK1FED JN88 (x2)
183930 -11 2153  OK1FED ON7DY -08 (x2)
175900  -5  590  DG6KL OK1FED JN88 (x2)
181100  -5 1022  PA/DL9PN OK1FED JN88 (x3)

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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