OK1DTC — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

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

Receiver-side FT8 activity involving OK1DTC, decoded by SO8OO in southeastern Poland. 673 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-08-27 and 2026-11-04.

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 673 FT8 messages attributed to OK1DTC as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (99%), followed by 80 m (1%) and 20 m (0%). Most decodes (100%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (95%); the estimated median was +7 dB.

Overview

673
Messages attributed
9
UTC dates decoded
57
Active 15-min windows
+7 dB
Estimated median S/N

Bands

First attributed message: 2026-08-27
Last attributed message: 2026-11-04 18:13 UTC

Observed FT8 message patterns

Attributed sample
673 messages
Active dates
9 UTC dates
Estimated median S/N
+7 dB
Estimated 10th-90th percentile
-1.4 to +15 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 642.

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 OK1DTC

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 · 291 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
628 km (approx.)
Last such locator decoded
2026-11-04 18:13 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 UTCBandOK1DTC S/NCounterpartCounterpart S/NMsgsCapture
11-04 19:30 40m - / - GU4WRP -14 / - 2 ✓ Closing fragment
11-04 18:13 40m - / - DL1RAZ -6 / - 5 Partial capture
11-04 18:04 40m -3 / +4 RN3YN -6 / -8 4 ✓ Full exchange observed
11-04 18:02 40m +3 / -14 F5PBG -8 / 0 5 ✓ Full exchange observed
11-04 17:54 40m +1 / +9 ES2AJ -1 / - 6 ✓ Full exchange observed
11-04 17:43 40m - / - M7ILU -14 / - 2 Partial capture
11-04 17:42 40m - / - IN3ZWF -9 / - 4 Partial capture
11-04 17:42 40m - / - YL3ASK -15 / - 3 Partial capture
11-04 17:41 40m +8 / -3 SM0EJR -6 / +2 6 ✓ Full exchange observed
11-04 17:32 40m +4 / 0 DL9YNG -11 / +8 3 ✓ Full exchange observed
11-04 17:31 40m - / - DL1RAZ -8 / - 2 Partial capture
11-04 17:12 40m +6 / - DL4DP - / -14 4 ✓ Closing fragment
11-04 17:11 40m +4 / - M5RJC -7 / +3 5 ✓ Full exchange observed
11-04 17:08 40m +12 / - LY3QR -18 / - 4 ✓ Full exchange observed
11-04 17:06 40m +6 / +3 OE3RWR +1 / +7 5 ✓ Full exchange observed
11-04 17:02 40m -4 / -10 RW3QW -4 / -4 4 ✓ Full exchange observed
11-02 18:36 40m - / -4 EB1EXS -14 / - 2 Partial capture
11-02 17:32 40m -20 / - US1EA - / +9 2 ✓ Closing fragment
11-02 17:29 40m - / -4 4X1UF -14 / - 2 ✓ Closing fragment
11-02 17:04 40m -1 / - EY7BP - / -18 5 ✓ Closing fragment
11-02 16:58 40m +1 / - LZ3TB - / -16 2 ✓ Closing fragment
11-02 16:53 40m +4 / - YL3AWK - / -16 4 ✓ Closing fragment
11-02 16:52 40m +4 / - R2EA - / - 2 ✓ Closing fragment
11-02 16:44 40m +2 / - UB3ZKO - / -13 2 ✓ Closing fragment
11-02 16:39 40m +10 / -5 OH6RE +8 / - 5 ✓ Full exchange observed
11-02 16:24 40m +11 / - TK5NJ - / - 13 Partial capture
11-02 16:18 40m +13 / - TK5NJ - / - 5 Partial capture
11-01 19:19 40m - / +5 TC0TR -12 / - 3 ✓ Closing fragment
11-01 19:16 40m - / - SV5BYP -6 / - 2 ✓ Closing fragment
11-01 19:12 40m - / - YO6IGJ -14 / - 3 Partial capture
11-01 19:03 40m - / - UR9QQ -14 / - 3 Partial capture
11-01 18:58 40m - / -6 ON7DE -13 / - 11 ✓ Closing fragment
11-01 18:53 40m - / -4 SV9GPV -6 / - 2 ✓ Closing fragment
11-01 18:34 40m - / +2 GJ0KYZ -2 / - 2 ✓ Closing fragment
11-01 18:34 40m - / - PD0IFI -8 / - 2 Partial capture
11-01 18:17 40m - / +1 ON7AN -7 / - 3 ✓ Closing fragment
11-01 18:04 40m - / -11 M0BEW +2 / - 2 ✓ Closing fragment
11-01 17:59 40m - / +1 9K2YM -6 / - 2 ✓ Closing fragment
11-01 17:42 40m - / -5 IU4DTV +12 / - 3 ✓ Closing fragment
11-01 17:20 40m - / - UA4FKT +9 / - 3 ✓ Closing fragment
11-01 17:04 40m - / -6 OH2EDV -14 / - 2 ✓ Closing fragment
11-01 17:00 40m -12 / - ON1DGN - / -9 2 ✓ Closing fragment
11-01 16:58 40m -10 / - R8LCA - / -16 2 ✓ Closing fragment
11-01 16:56 40m -15 / - F3CJ - / 0 2 Partial capture
11-01 16:53 40m -10 / +5 OH6DHM -13 / -14 3 ✓ Full exchange observed
11-01 16:43 40m -10 / -3 RC9WC -14 / -8 7 ✓ Full exchange observed
11-01 16:37 40m - / +6 OH3DJP -7 / - 3 ✓ Closing fragment
11-01 16:36 40m - / +5 IN3LHF -1 / - 3 Partial capture
11-01 16:31 40m -6 / - ON5ZU - / -3 2 ✓ Closing fragment
11-01 16:26 40m -3 / - 3A2LF - / - 9 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
180415  -3  972  RN3YN OK1DTC -08
180430 -10  746  OK1DTC RN3YN R+04 (x2)
180715  -8  972  RA6FTH OK1DTC RR73
181145 -16 1864  CQ OK1DTC JO60 (x2)
181300  -2 1865  OK1DTC DL1RAZ JO50
181315 -16 1864  CQ OK1DTC JO60
181330  -1 1865  OK1DTC DL1RAZ JO50
181400  -6 1157  OK1DTC IZ2SXZ JN56
181400  -7 1865  OK1DTC DL1RAZ JO50 (x3)
193000 -15 2155  OK1DTC GU4WRP +16 (x2)
80m
UTC    dB Audio  Message
190315  -3  870  CQ OK1DTC JO60 (x3)
190500  -1 2503  OK1DTC R5ACQ KO85
190515  -3  871  R5ACQ OK1DTC -16
190530  +0 2503  OK1DTC R5ACQ R-17
190545  +0  870  R5ACQ OK1DTC RR73
190600  -6 2503  OK1DTC R5ACQ 73
190645  +2  870  SP5DFK/QRP OK1DTC -12 (x2)
204600 -11 2612  OK1DTC 8S2A R-30 (x2)
10m
UTC    dB Audio  Message
172045 -22 1787  OK1DTC RZ3ZY KO90
154845 -17 2217  OK1DTC EP2AES -25 (x2)
150430  +9 2737  OK1DTC CN8WK +00 (x2)
094200 -17 2419  OK1DTC RM8L MO27 (x3)
101930  +1 2409  OK1DTC UN6LN +12 (x2)
152215 -11  887  OK1DTC TA1MB KN41 (x2)
20m
UTC    dB Audio  Message
191630  +9 1031  OK1DTC F4ACR 73
191730  -6 1032  OK1DTC M8FQT R+07 (x2)
193800  +9 1032  OK1DTC M0PBG IO93 (x3)
194330 -15 1217  OK1DTC BD8FWI OM44 (x6)
194815 -13 1033  CQ OK1DTC JO60 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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