OK4RQ — 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: JN69

Receiver-side FT8 activity involving OK4RQ, decoded by SO8OO in southeastern Poland. 2,041 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 93 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-22.

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 2,041 FT8 messages attributed to OK4RQ as the transmitting token by decoded message structure across 93 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (48%), followed by 80 m (31%) and 20 m (13%). Most decodes (66%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (78%); the estimated median was -2 dB.

Overview

2,041
Messages attributed
93
UTC dates decoded
384
Active 15-min windows
-2 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-22 06:05 UTC

Observed FT8 message patterns

Attributed sample
2,041 messages
Active dates
93 UTC dates
Estimated median S/N
-2 dB
Estimated 10th-90th percentile
-13.1 to +7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 122, moderate (-15 to -9 dB) 320, strong (≥ -8 dB) 1,599.

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 OK4RQ

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 · 1,343 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
634 km (approx.)
Last such locator decoded
2026-10-22 06:04 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 UTCBandOK4RQ S/NCounterpartCounterpart S/NMsgsCapture
10-22 06:04 80m +6 / - DO1OAS - / -1 2 ✓ Closing fragment
10-21 17:08 80m -5 / - OM2IB +16 / - 5 ✓ Full exchange observed
10-21 06:23 40m -5 / - IT9ACJ/QRP - / - 2 Partial capture
10-21 05:59 40m -6 / - SM7WNM - / -15 2 ✓ Closing fragment
10-21 05:58 40m - / - G0BLB -1 / - 2 Partial capture
10-21 05:58 40m -7 / - SP5EXA -3 / - 3 ✓ Closing observed
10-21 05:52 40m -7 / - KE8YOU - / -15 2 ✓ Closing fragment
10-18 18:26 80m +3 / -1 DF0TZ -3 / -1 5 ✓ Full exchange observed
10-17 10:53 10m - / -9 EG46PPA -13 / - 3 Partial capture
10-17 05:57 40m - / +1 IZ2AMW +18 / - 2 Partial capture
10-17 05:53 40m -4 / -8 SX37VER -17 / -8 10 Partial capture
10-17 05:51 40m -3 / - IK5BOH/2 - / - 4 Partial capture
10-17 05:50 60m - / - I8IGS -14 / - 5 Partial capture
10-17 05:48 60m -4 / - F6FHZ - / -6 2 ✓ Closing fragment
10-17 05:45 60m - / -19 EG46PPA -17 / - 5 ✓ Closing fragment
10-17 05:45 60m - / -20 SQ7LQT -5 / - 6 Partial capture
10-17 05:44 60m -3 / - F4FHM/QRP - / +4 4 Partial capture
10-16 19:27 80m - / - RK6OQ -4 / - 2 Partial capture
10-16 19:25 80m +6 / - OE8JOTA - / -2 2 Partial capture
10-16 19:13 80m +2 / - RA4CQW/P - / -3 2 Partial capture
10-16 17:23 40m 0 / - DL/OE2BVG - / +8 2 Partial capture
10-16 17:18 60m -6 / -6 SV1EKI +3 / +3 6 ✓ Full exchange observed
10-16 17:17 60m -5 / - HB9SWR/P - / -11 2 Partial capture
10-14 18:02 60m -5 / 0 LZ1ZF -8 / +3 6 ✓ Full exchange observed
10-14 17:59 60m +1 / - PJ4/DH8BQA - / +6 3 Partial capture
10-14 17:39 40m -2 / - 9A/N0BFQ - / - 12 Partial capture
10-13 19:52 80m +9 / - DL/AD2LX - / - 8 Partial capture
10-13 19:48 80m 0 / - IQ3TR - / -10 6 ✓ Closing fragment
10-13 19:22 60m -2 / -4 IQ3TR +4 / -2 29 Partial capture
10-13 19:17 60m - / - SP2GCJ -8 / - 2 Partial capture
10-13 19:15 60m 0 / -5 IQ3TR +4 / +1 6 ✓ Full exchange observed
10-12 19:00 40m - / -4 LZ1ZF +3 / - 2 Partial capture
10-11 17:41 40m -6 / - YU5DR -11 / 0 4 ✓ Closing observed
10-11 06:18 40m +5 / - AM5CV -3 / 0 5 ✓ Full exchange observed
10-10 18:49 40m - / -16 AM5CV +4 / - 2 ✓ Closing fragment
10-10 18:38 80m -6 / -5 SQ5ANT -5 / -9 8 Partial capture
10-10 18:16 80m - / +2 DL7PIA +4 / - 2 ✓ Closing fragment
10-10 18:04 80m +6 / - HF40BLP - / - 5 Partial capture
10-10 18:02 80m +8 / - SP5DFK/QRP - / - 2 Partial capture
10-10 16:47 40m -3 / -7 UA9FMT -16 / -3 5 ✓ Full exchange observed
10-10 10:01 40m -3 / - IK0XBU/P - / -16 7 Partial capture
10-10 06:58 40m -4 / - IN3IBW +8 / +5 6 ✓ Closing observed
10-10 06:55 40m -4 / - SQ8AZT -15 / +7 6 ✓ Full exchange observed
10-10 06:52 40m -3 / -1 SQ5ANT -4 / - 5 ✓ Closing observed
10-10 04:35 80m +10 / +2 DL6LG -17 / -10 7 ✓ Full exchange observed
10-10 04:33 80m +8 / - SQ2RAD +2 / - 4 ✓ Full exchange observed
10-10 04:31 80m - / - DL6LG -9 / - 3 Partial capture
10-10 04:30 80m +8 / -16 VP2MAA -2 / -4 4 ✓ Full exchange observed
10-10 04:29 80m +2 / - IN3IBW -3 / +6 3 ✓ Closing observed
10-10 04:27 80m +13 / +3 SQ8AZT -10 / +3 3 ✓ 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
192715  -3 1502  OK4RQ RK6OQ KN87 (x2)
182645  +1 1110  DF0TZ OK4RQ JN69 (x2)
182730  -3  714  OK4RQ DF0TZ -01
182745  +8 1109  DF0TZ OK4RQ R-01 (x2)
170800  -2 1337  OM2IB OK4RQ JN69
170815 +17 1383  OK4RQ OM2IB +15
170830  -7 1337  OM2IB OK4RQ R+14
170845 +16 1383  OK4RQ OM2IB RR73
170900  -7 1337  OM2IB OK4RQ 73
060415  -4 1053  CQ OK4RQ JN69                         a1
060445  +5 1053  DO1OAS OK4RQ -01 (x2)
40m
UTC    dB Audio  Message
055245  -6 1677  KE8YOU OK4RQ -15 (x2)
055745  -5 1675  CQ OK4RQ JN69
055800  -3 2836  OK4RQ SP5EXA KO02
055800  -1  511  OK4RQ G0BLB IO81
055815  -9 1675  SP5EXA OK4RQ +19
055830  -1  511  OK4RQ G0BLB IO81
055845  -5 1675  SP5EXA OK4RQ RR73
055915  -6 1674  CQ OK4RQ JN69
055945  -6 1674  SM7WNM OK4RQ R-15 (x2)
062315  -5 1472  IT9ACJ/QRP OK4RQ JN69 (x2)
170400 -11 1687  OK4RQ OR1A RR73
060200  -3  389  OK4RQ RR73; F8MRQ <...> +04
10m
UTC    dB Audio  Message
071700 -14 1195  OK4RQ DN9DSP +01 (x2)
071900 -15 1796  OK4RQ PA3EVY RR73
072600 -19 2092  OK4RQ DN9JGL RR73
072630 -16 2377  OK4RQ DN9CHV JO31 (x3)
075500 -15 1235  OK4RQ DH7ZP R-14 (x2)
082930  -1 1252  OK4RQ II7MGXX +18
083000  -3 1252  OK4RQ RR73; IU3WNP <...> -08
101900 -18 1285  <...> OK4RQ R-05
105300 -12  924  OK4RQ EG46PPA -09 (x3)
60m
UTC    dB Audio  Message
054700  -3 1472  OK4RQ SQ7LQT -11 (x2)
054730 -17 2051  OK4RQ EG46PPA +00
054745  -6 1389  F4FHM/QRP OK4RQ R+04
054800  -3 1472  OK4RQ SQ7LQT -11
054800 -16 2051  <OK4RQ> EG46PPA RR73
054845  -4 1388  F6FHZ OK4RQ -06
054900 -17 2051  OK4RQ EG46PPA +00
054915  -4 1387  F6FHZ OK4RQ RR73
054930 -16 2051  OK4RQ EG46PPA +00
055000 -14 1489  OK4RQ I8IGS JM78 (x5)
160m
UTC    dB Audio  Message
185215 +13  598  RI1FJZ OK4RQ JN69 (x6)
20m
UTC    dB Audio  Message
084245 -19 1923  <...> OK4RQ JN69
084830 -15 2221  OK4RQ II7MGBR +03
132745 +12 1209  <...> OK4RQ JN69 (x8)
135945  +6 2101  II7MGXX OK4RQ JN69
144330 -16 2152  OK4RQ MM7FTH +07 (x4)

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

1 CW reception events in the last 30 days.

  • 40m: 1 events; last heard 2026-10-19 16:28 UTC

Latest CW receptions

UTCBandkHzS/N · 500 HzWPMListen
2026-10-19 16:28:2440m7031.05311.7 dB—WebSDR ↗
CW reception history

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