OK4KOP/P — 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: JN89

Receiver-side FT8 activity involving OK4KOP/P, decoded by SO8OO in southeastern Poland. 322 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, across 18 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-10-12.

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 322 FT8 messages attributed to OK4KOP/P as the transmitting token by decoded message structure across 18 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (51%), followed by 40 m (47%) and 20 m (2%). Most decodes (98%) fell within the six-hour window 13:00-19:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -5 dB.

Overview

322
Messages attributed
18
UTC dates decoded
41
Active 15-min windows
-5 dB
Estimated median S/N

Bands

First attributed message: 2026-06-20
Last attributed message: 2026-10-12 14:52 UTC

Observed FT8 message patterns

Attributed sample
322 messages
Active dates
18 UTC dates
Estimated median S/N
-5 dB
Estimated 10th-90th percentile
-18 to +7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 43, moderate (-15 to -9 dB) 81, strong (≥ -8 dB) 198.

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 OK4KOP/P

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
JN89 · 169 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
348 km (approx.)
Last such locator decoded
2026-10-12 14:52 UTC

Other locator fields attributed to this token: JN88 (9).

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 UTCBandOK4KOP/P S/NCounterpartCounterpart S/NMsgsCapture
10-16 20:26 40m - / - EA3IDY -3 / - 10 Partial capture
10-16 17:34 40m - / - F1NNI -11 / - 4 Partial capture
10-16 16:32 40m - / -16 R3XBS -4 / - 2 Partial capture
10-13 13:51 40m - / -14 DJ0MAB -11 / - 3 Partial capture
10-13 03:39 40m - / - SV5AZK -19 / - 3 Partial capture
10-12 14:51 40m -13 / +5 PC2F -10 / - 3 ✓ Closing observed
10-12 14:40 40m -5 / -19 IZ8DBJ -16 / - 3 ✓ Closing observed
10-08 15:21 40m - / -14 UB4CJS -18 / - 2 Partial capture
10-08 08:54 40m - / - DL5CG -18 / - 8 Partial capture
10-07 17:29 40m - / - IU4QQE -14 / - 4 Partial capture
10-02 15:42 40m - / - DL4RY -5 / - 2 Partial capture
10-02 08:31 40m - / +1 DK2AJ -10 / - 2 Partial capture
10-02 05:26 40m - / -2 IU1TLG -11 / - 5 Partial capture
10-02 04:08 40m - / -14 SV9AUP -22 / - 2 Partial capture
10-01 16:38 40m -14 / -16 R7OV -15 / +1 5 ✓ Full exchange observed
10-01 16:32 40m -10 / - F5PZT -14 / - 2 ✓ Closing observed
10-01 16:29 40m - / - IK2EBP -6 / - 5 Partial capture
10-01 16:06 40m - / -13 S53AK -5 / - 3 ✓ Closing fragment
10-01 16:02 40m -12 / -14 PA8DC -13 / +2 4 Partial capture
10-01 15:48 40m +7 / - M7XRH - / -17 3 Partial capture
09-30 21:25 40m +7 / -1 F4BYA +6 / -9 5 Partial capture
09-30 12:02 40m - / - OE3KLU +12 / - 2 Partial capture
09-30 07:57 40m - / - F4BYA -2 / - 6 Partial capture
09-30 07:50 40m - / - F4BYA -4 / - 6 Partial capture
09-30 07:44 40m - / - F4BYA +2 / - 6 Partial capture
09-30 07:35 40m - / - F4BYA -3 / - 3 Partial capture
09-30 07:23 40m - / - F4BYA +2 / - 3 Partial capture
09-30 07:02 40m - / - F4BYA +3 / - 2 Partial capture
09-29 18:33 40m - / 0 DK7UY 0 / - 2 Partial capture
09-29 16:22 40m -1 / +5 DL1AWD +1 / -10 4 Partial capture
09-29 16:21 40m - / 0 LZ3CB +17 / - 3 ✓ Closing fragment
09-26 14:51 40m - / - DH7VK -10 / - 2 Partial capture
09-26 13:36 40m - / - SP9HAX -3 / - 4 Partial capture
09-26 12:56 40m - / -4 SP9HAX -6 / - 9 Partial capture
09-26 10:28 40m - / - EW2AAA -17 / - 5 Partial capture
09-25 16:40 40m -13 / -12 LY2KM -4 / +6 3 ✓ Full exchange observed
09-25 16:37 40m -14 / -5 SP2TQQ -13 / +2 8 ✓ Full exchange observed
09-25 16:35 40m - / - DH3KR -10 / - 6 Partial capture
09-25 16:32 40m -15 / -18 RN6MA -9 / -1 5 ✓ Full exchange observed
09-19 20:55 60m - / - OK1BN +8 / - 3 Partial capture
09-19 19:20 60m - / -6 HB9HAN -11 / - 2 Partial capture
09-19 17:16 60m -12 / - DL2AOM - / 0 2 ✓ Closing fragment
09-19 17:14 60m -16 / -2 PE1MHY -10 / +3 4 ✓ Full exchange observed
09-19 17:13 60m - / - SP6TRX +1 / - 11 Partial capture
09-19 17:12 60m -10 / +7 DL8UD -6 / +4 6 ✓ Full exchange observed
09-19 17:11 60m -12 / -26 SP9DPI -16 / -2 5 ✓ Full exchange observed
09-19 17:10 60m - / -11 F1PBZ -18 / - 2 Partial capture
09-19 17:09 60m -11 / -6 DJ1PQ -9 / +2 6 ✓ Full exchange observed
09-19 17:07 60m -10 / - F1PBZ -16 / +6 3 ✓ Closing observed
09-19 17:05 60m -8 / - F4IRP - / -2 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
173400 -11 1363  OK4KOP/P F1NNI IN88 (x4)
202600  -5 1353  OK4KOP/P EA3IDY JN01 (x10)
122115 -19 1353  OK4KOP/P DM7CA JO61
60m
UTC    dB Audio  Message
171715  -8 1837  CQ BOTA OK4KOP/P JN88
171745  -2 2634  OK4KOP/P SP6TRX JO71
171745  -7 1837  CQ BOTA OK4KOP/P JN88 (x2)
171830  -1 2608  OK4KOP/P SP6TRX JO71 (x3)
183515 -14  932  OK4KOP/P IZ1CQS R-10
190330 -17 1534  OK4KOP/P CN8DN -15
192045 -12 1089  OK4KOP/P HB9HAN JN47 (x2)
205500  +8 1839  OK4KOP/P OK1BN JO70 (x3)
050330  -7 1530  OK4KOP/P DL1UDO R+12
20m
UTC    dB Audio  Message
114645 -10 2003  OK4KOP/P F5RRS R-10 (x2)
164415 +10 2755  OK4KOP/P F4ACR R-05 (x2)
164715  -3 2754  OK4KOP/P TA3F KM38 (x2)
165445  -1 1377  OK4KOP/P EA4T RR73 (x6)
165915  -6 2975  OK4KOP/P SV1TRJ KM27 (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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee