OK1DX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Czech Republic Most frequent locator attributed to this token: JN69

Receiver-side FT8 activity involving OK1DX, decoded by SO8OO in southeastern Poland. 226 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 16 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-09-14.

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 226 FT8 messages attributed to OK1DX as the transmitting token by decoded message structure across 16 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (62%), followed by 160 m (24%) and 40 m (13%). Most decodes (60%) fell within the six-hour window 21:00-03:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (97%); the estimated median was +9 dB.

Overview

226
Messages attributed
16
UTC dates decoded
32
Active 15-min windows
+9 dB
Estimated median S/N

Bands

160m · 55 80m · 141 40m · 30
First attributed message: 2026-06-13
Last attributed message: 2026-09-14 05:58 UTC

Observed FT8 message patterns

Attributed sample
226 messages
Active dates
16 UTC dates
Estimated median S/N
+9 dB
Estimated 10th-90th percentile
-3 to +19 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 219.

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 OK1DX 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 OK1DX

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
JN69 · 144 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
634 km (approx.)
Last such locator decoded
2026-09-14 05:57 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 UTCBandOK1DX S/NCounterpartCounterpart S/NMsgsCapture
09-14 05:59 40m - / - 9A4ZM +4 / - 2 Partial capture
09-14 05:57 40m +11 / - SN40KZE - / -3 3 Partial capture
09-14 05:55 40m +19 / - VP5/K5UR - / - 3 Partial capture
09-14 05:49 40m +17 / - D44TWO - / -14 6 ✓ Closing fragment
09-12 22:22 80m - / - R4FDD 0 / - 2 Partial capture
09-12 22:19 80m +14 / - EA8DEG - / - 4 Partial capture
09-12 22:16 160m 0 / - G8OO -17 / - 2 ✓ Closing observed
09-12 22:13 160m +1 / - EA8AR - / -19 2 ✓ Closing fragment
09-12 22:11 160m -4 / - DL2YMG - / -18 2 ✓ Closing fragment
09-12 22:10 160m 0 / -5 DL1WZ -14 / -2 5 ✓ Full exchange observed
09-12 22:08 160m -6 / -13 R5AV -10 / +1 4 ✓ Full exchange observed
09-11 06:03 80m +2 / -16 Z62NS -11 / -7 9 ✓ Full exchange observed
09-10 22:15 80m +18 / - KP4AA - / - 3 Partial capture
09-09 02:48 80m +13 / - W4IPC - / -3 4 ✓ Closing fragment
09-09 02:47 80m +13 / - K4YT - / - 2 Partial capture
09-09 02:45 80m +13 / - VE2CKW - / -19 3 ✓ Closing fragment
09-09 02:44 80m - / -7 R2EA +6 / - 2 Partial capture
09-09 02:42 80m +9 / - KA8OAT - / -17 3 ✓ Closing fragment
09-09 02:41 80m - / - ON4MAP -15 / - 5 Partial capture
09-09 02:41 80m - / - UA4FKT -3 / - 4 Partial capture
09-07 22:05 80m +10 / -18 VU2NKS -24 / -17 6 ✓ Full exchange observed
09-07 22:00 160m +1 / - PP5JR - / - 5 Partial capture
09-07 21:58 160m +3 / -17 PI4DX +10 / - 5 ✓ Full exchange observed
09-07 19:23 160m -7 / -10 UT6HN +7 / -5 7 ✓ Full exchange observed
09-07 19:22 160m -12 / - F4HGF - / -15 2 ✓ Closing fragment
09-07 19:12 160m +5 / - F5LVR - / -21 3 Partial capture
09-07 19:07 160m +6 / -15 SP9SOS -5 / -13 7 ✓ Full exchange observed
09-07 19:04 160m +2 / -16 UA3ZUX +1 / -12 5 ✓ Full exchange observed
09-07 19:04 160m 0 / +7 UT4WT +11 / +1 7 ✓ Full exchange observed
09-04 20:02 160m -3 / -18 UA1OMS -17 / -7 6 Partial capture
09-04 20:01 160m +6 / - UA0ACG - / - 2 Partial capture
09-04 20:00 160m +3 / 0 OK1TP 0 / - 4 ✓ Full exchange observed
09-04 19:57 160m +4 / - UA1OMS - / - 2 Partial capture
09-04 19:52 80m +16 / - RI1FJL - / - 4 Partial capture
09-04 05:16 80m +7 / - PY4QQ - / - 4 Partial capture
09-02 19:33 80m -8 / - RI1FJL - / - 2 Partial capture
09-01 16:57 40m +8 / - VJ6X - / - 2 Partial capture
08-30 20:10 80m - / - UR9QQ +6 / - 2 Partial capture
08-30 20:07 80m +11 / -10 EA8UP -12 / +2 5 ✓ Full exchange observed
08-30 05:28 80m +4 / - W4KFC - / - 2 Partial capture
08-30 05:26 80m +10 / - AB2E - / - 2 Partial capture
08-30 05:25 80m +11 / - AA3B - / - 2 Partial capture
08-28 02:17 40m - / - F5RRS +9 / - 5 Partial capture
08-28 02:16 40m -19 / -16 XQ3MCC -16 / - 3 ✓ Closing observed
08-28 01:48 80m - / - DK8HC +7 / - 7 Partial capture
08-28 01:47 80m +12 / -16 N4HB -18 / -13 4 ✓ Full exchange observed
08-28 01:45 80m - / - OO0O -13 / - 2 Partial capture
08-28 01:44 80m +12 / - VA2AM - / -7 2 ✓ Closing fragment
08-28 01:43 80m - / - CT2GQA -11 / - 5 Partial capture
08-28 01:37 80m +13 / - A43KD - / - 6 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
055015 +17  379  D44TWO OK1DX JN69 (x3)
055145 +20  380  <VP5/K5UR> OK1DX JN69
055215 +19  380  D44TWO OK1DX R-14 (x2)
055515 +20  380  VP5/K5UR OK1DX JN69 (x3)
055715 +12 2396  SN40KZE OK1DX JN69 (x3)
055900  -8 1059  OK1DX SM7WNM -02
055900  +2 2394  OK1DX 9A4ZM JN86 (x2)
80m 
UTC    dB Audio  Message
060415  +1 1786  Z62NS OK1DX R-07
060430 -10 1355  OK1DX Z62NS -16
060445  +1 1787  Z62NS OK1DX R-07
060500 -13 1355  OK1DX Z62NS -16
060515  +5 1787  Z62NS OK1DX R-11
060530  -8 1355  OK1DX Z62NS RR73
060545  +5 1787  Z62NS OK1DX 73
221900 +13 1282  EA8DEG OK1DX JN69 (x4)
222200 +18  765  CQ DX OK1DX JN69
222215  -3  765  OK1DX R4FDD LO33
222230 +20  765  CQ DX OK1DX JN69
222245  +2  765  OK1DX R4FDD LO33
160m 
UTC    dB Audio  Message
220945  -3 1627  CQ OK1DX JN69
221000 -14  764  OK1DX DL1WZ JO31
221015  -4 1627  DL1WZ OK1DX -02
221030 -16  765  OK1DX DL1WZ R-05
221045  +3 1627  DL1WZ OK1DX RR73
221100 -11  765  OK1DX DL1WZ 73
221115  -1 1627  CQ OK1DX JN69
221145  -2 1627  DL2YMG OK1DX -18 (x2)
221245 -11 1627  CQ OK1DX JN69
221345  +3 1627  EA8AR OK1DX -19 (x2)
221515  -7 1627  CQ OK1DX JN69
221615  +0 1627  G8OO OK1DX RR73
221630 -17 1875  OK1DX G8OO 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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