OK1DXR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Czech Republic Most frequent locator attributed to this token: JO60

Receiver-side FT8 activity involving OK1DXR, decoded by SO8OO in southeastern Poland. 6,580 FT8 messages attributed to this token as transmitter, on 160m, 20m, 10m, across 26 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-16.

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 6,580 FT8 messages attributed to OK1DXR as the transmitting token by decoded message structure across 26 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (89%), followed by 10 m (9%) and 20 m (2%). Most decodes (65%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (92%); the estimated median was +3 dB.

Overview

6,580
Messages attributed
26
UTC dates decoded
451
Active 15-min windows
+3 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-09-16 04:19 UTC

Observed FT8 message patterns

Attributed sample
6,580 messages
Active dates
26 UTC dates
Estimated median S/N
+3 dB
Estimated 10th-90th percentile
-7.4 to +10 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 149, moderate (-15 to -9 dB) 405, strong (≥ -8 dB) 6,026.

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 OK1DXR

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
JO60 · 5,104 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
628 km (approx.)
Last such locator decoded
2026-09-16 04:19 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 UTCBandOK1DXR S/NCounterpartCounterpart S/NMsgsCapture
09-16 04:15 160m -2 / - W1FP - / - 9 Partial capture
09-16 03:11 160m +6 / - KO4PRE - / -16 9 ✓ Closing fragment
09-16 03:08 160m +6 / - K4SO - / -15 4 ✓ Closing fragment
09-16 02:52 160m +10 / - KO4PRE - / - 8 Partial capture
09-16 02:51 160m - / - UA3ZQN -1 / - 2 Partial capture
09-16 02:46 160m +8 / - VY2JGC - / - 8 Partial capture
09-16 02:24 160m +9 / - VY2JGC - / - 10 Partial capture
09-16 02:19 160m +6 / - W1LH - / - 2 ✓ Closing fragment
09-15 18:02 160m - / - UA3ZQN +2 / - 4 Partial capture
09-15 17:57 160m +7 / - G4RGK - / -18 2 ✓ Closing fragment
09-15 17:48 160m +2 / -24 SV1ENM -17 / -16 9 ✓ Full exchange observed
09-15 17:46 160m - / - SP8V -9 / - 2 Partial capture
09-15 17:42 160m +6 / - IV3FSG +3 / - 5 ✓ Full exchange observed
09-15 17:41 160m - / - SP8V -8 / - 2 Partial capture
09-15 17:41 160m - / - UA3ZQN 0 / - 3 Partial capture
09-15 17:32 160m +2 / - IW4BIF - / -17 2 ✓ Closing fragment
09-15 17:20 160m +4 / - OM3SX +12 / - 6 ✓ Full exchange observed
09-15 17:15 160m 0 / - HA5IHJ - / - 8 Partial capture
09-15 17:12 160m +2 / - OZ2LIN - / -4 3 ✓ Closing fragment
09-15 17:11 160m 0 / - DL50IPARC - / +1 2 Partial capture
09-15 17:10 160m 0 / - DO2CPH - / -11 2 ✓ Closing fragment
09-15 17:06 160m -2 / - OM3SX - / - 8 Partial capture
09-15 04:24 160m -4 / - AC8RJ - / -24 6 ✓ Closing fragment
09-15 04:10 160m -1 / - F4EGM - / -5 3 ✓ Closing fragment
09-15 03:57 160m +3 / - DL50IPARC - / - 9 Partial capture
09-15 03:20 160m +9 / - SP6TRX +15 / - 5 ✓ Full exchange observed
09-15 03:15 160m +2 / -24 SV3ALC -10 / -14 7 ✓ Full exchange observed
09-15 03:06 160m +9 / - CX6VM - / - 10 Partial capture
09-15 03:04 160m +9 / +4 SP2RXH +8 / - 6 ✓ Full exchange observed
09-15 02:52 160m +10 / - IW0FFK - / - 7 Partial capture
09-14 23:42 160m +1 / - V26OC - / - 9 Partial capture
09-14 22:52 160m +8 / - MW7GQB - / -11 4 ✓ Closing fragment
09-14 22:00 160m +5 / - DL50IPARC - / - 10 Partial capture
09-14 21:53 160m +5 / - DG4MCB - / -22 9 ✓ Closing fragment
09-14 21:42 160m +6 / - LA8OKA - / -16 14 Partial capture
09-14 21:38 160m +10 / - DL5MFF - / -17 3 ✓ Closing fragment
09-14 21:29 160m +2 / - YO5USA -8 / -15 8 ✓ Full exchange observed
09-14 21:17 160m +7 / - HC1BI - / - 9 Partial capture
09-14 20:56 160m -8 / - PG7X - / -8 3 ✓ Closing fragment
09-14 20:52 160m -4 / - IK0NMZ - / - 8 Partial capture
09-14 20:41 160m 0 / - SP7MKG - / - 10 Partial capture
09-14 20:35 160m +1 / - M9HEB - / -18 7 ✓ Closing fragment
09-14 20:27 160m -3 / - M0IIO - / +3 3 ✓ Closing fragment
09-14 20:04 160m +6 / - PA0RDT - / -13 3 ✓ Closing fragment
09-14 19:59 160m +2 / +3 DO1YFF -7 / +10 7 ✓ Full exchange observed
09-14 19:51 160m +5 / - G4VYC - / -24 10 Partial capture
09-14 19:46 160m +6 / - R0QBB/3 - / -4 2 Partial capture
09-14 19:37 160m 0 / - EA3JIJ - / - 10 Partial capture
09-14 19:33 160m +8 / +2 9A3SO -3 / -7 6 ✓ Full exchange observed
09-14 19:28 160m +2 / - RL7Z - / - 9 Partial capture

Recent FT8 messages decoded at SO8OO

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

160m
UTC    dB Audio  Message
031300  +8 1295  KO4PRE OK1DXR JO60 (x6)
041545  -2 1295  W1FP OK1DXR JO60 (x9)
80m
UTC    dB Audio  Message
203800  +4 2620  OK1DXR HF5A JO92 (x2)
20m
UTC    dB Audio  Message
130100 -19 1356  9M8DEN OK1DXR JO60 (x14)
144430  +3 1775  OK1DXR UA6AOP KN95
10m
UTC    dB Audio  Message
153930 -11 1066  OK1DXR PD1DRE +05
154145 -15 2035  LX1RFJ OK1DXR JO60
154300 -20 2035  3A2LF OK1DXR JO60
155730  +9 1982  TK5K OK1DXR JO60 (x2)
155815  -1  496  OK1DXR TK5K -06
155830  +7 1983  TK5K OK1DXR JO60
155845  +5  496  OK1DXR TK5K -06
155900  +9 1984  TK5K OK1DXR R-18
155915  -2  496  OK1DXR TK5K RR73
155930  +8 1984  TK5K OK1DXR 73
160100  +6 1905  SP7FSA OK1DXR +18 (x2)
095300 -22 1946  OK1DXR LX1RFJ RR73
103815 -21 1650  4EO OK1DXR JO

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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