OK1JR — 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 OK1JR, decoded by SO8OO in southeastern Poland. 235 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 15 UTC dates in the available aggregate history. Observed between 2026-07-24 and 2026-10-05.

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 235 FT8 messages attributed to OK1JR as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (44%), followed by 40 m (27%) and 20 m (19%). Most decodes (89%) 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 (71%); the estimated median was -5.4 dB.

Overview

235
Messages attributed
15
UTC dates decoded
40
Active 15-min windows
-5.4 dB
Estimated median S/N

Bands

First attributed message: 2026-07-24
Last attributed message: 2026-10-05 13:00 UTC

Observed FT8 message patterns

Attributed sample
235 messages
Active dates
15 UTC dates
Estimated median S/N
-5.4 dB
Estimated 10th-90th percentile
-13 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 55, strong (≥ -8 dB) 166.

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 OK1JR

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 · 134 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
628 km (approx.)
Last such locator decoded
2026-10-05 12:59 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 UTCBandOK1JR S/NCounterpartCounterpart S/NMsgsCapture
10-08 21:20 60m - / -12 G0ABI +1 / - 3 ✓ Closing fragment
10-05 12:59 40m -13 / -12 OK4TO -10 / - 4 ✓ Full exchange observed
10-03 21:02 60m - / - OK1BN -16 / - 6 Partial capture
09-28 21:07 80m -1 / -3 OH1HB +2 / -4 5 ✓ Full exchange observed
09-28 21:06 80m +2 / - DO8PAT -5 / -4 4 ✓ Closing observed
09-27 20:00 60m -13 / +6 F4CYH -22 / -2 5 ✓ Full exchange observed
09-27 19:57 60m -12 / -12 EA6LU -14 / -12 5 ✓ Full exchange observed
09-27 19:53 60m +4 / - DG9VH -19 / -14 5 ✓ Closing observed
09-25 19:06 60m -5 / - M0XUE - / - 4 Partial capture
09-25 19:02 60m -9 / -4 F1IQH -8 / -1 5 ✓ Full exchange observed
09-25 18:59 60m -5 / - IZ2ACM -4 / - 4 ✓ Closing observed
09-25 18:58 60m -4 / - OE9GWV -22 / -7 3 ✓ Closing observed
09-25 18:57 60m -5 / +8 SP5MXY -9 / -6 5 ✓ Full exchange observed
09-25 18:55 60m -3 / - DK1MBY - / -13 3 ✓ Closing fragment
09-25 18:52 60m -7 / +7 DD3VV -18 / -9 5 ✓ Full exchange observed
09-25 18:50 60m +7 / - EA1FMJ -11 / -11 4 ✓ Closing observed
09-25 18:42 60m +3 / -2 G1ROK -5 / -11 5 ✓ Full exchange observed
09-25 18:33 60m -6 / -4 SP5JMA -1 / -7 5 ✓ Full exchange observed
09-25 18:31 60m -6 / +2 IZ7QEB -12 / 0 5 ✓ Full exchange observed
09-25 18:26 60m -4 / +5 F5OZC 0 / +1 5 ✓ Full exchange observed
09-25 18:24 60m -8 / +7 OE5RXH -6 / +7 3 ✓ Full exchange observed
09-25 18:21 60m -2 / +1 DL3RSK -9 / +4 4 ✓ Full exchange observed
09-25 18:16 60m -3 / - DK4CN - / -9 3 ✓ Closing fragment
09-25 18:13 60m 0 / - PA3GQM -2 / +1 4 ✓ Closing observed
09-25 18:08 60m +4 / - G5USH - / - 3 Partial capture
09-25 17:29 40m -7 / -10 G6ZRV -10 / -9 6 Partial capture
09-25 17:15 40m -8 / - IT9JNN - / -23 2 ✓ Closing fragment
09-25 17:10 40m -8 / - EX7CQ - / - 2 Partial capture
09-25 16:50 40m 0 / -7 PD1GOL -12 / -17 5 ✓ Full exchange observed
09-24 18:54 40m -15 / - M7CYY - / -17 5 ✓ Closing fragment
09-24 18:45 60m -10 / -5 DL2VN -8 / -3 4 ✓ Full exchange observed
09-24 18:42 60m -11 / +1 IK4CBO -2 / +10 5 ✓ Full exchange observed
09-24 18:41 60m -14 / -7 HA3PG -12 / -3 3 ✓ Full exchange observed
09-24 18:40 60m -10 / -4 DK2CC -16 / -2 5 ✓ Full exchange observed
09-23 21:31 160m -16 / - F8FUA - / - 2 Partial capture
09-23 19:30 60m -5 / - G4JDT - / -15 5 ✓ Closing fragment
09-23 19:29 60m -9 / -1 LA6OCA -10 / +1 5 ✓ Full exchange observed
09-23 19:27 60m -9 / - EA3JIJ - / -14 3 ✓ Closing fragment
09-23 19:24 60m -3 / -1 F5MYK -14 / -5 5 ✓ Full exchange observed
09-23 19:23 60m -2 / -17 GX7RAF/P -13 / -1 6 ✓ Full exchange observed
09-23 19:22 60m -9 / - DG1RMY - / - 2 Partial capture
09-23 19:20 60m -10 / - DC5IU - / -17 2 ✓ Closing fragment
09-23 19:19 60m -10 / - DM7XK - / -13 2 ✓ Closing fragment
09-23 19:18 60m -8 / -9 G3UHU -11 / -2 5 ✓ Full exchange observed
09-23 19:17 60m -7 / -4 OH2GQC -11 / +3 5 ✓ Full exchange observed
09-22 23:31 80m +3 / - RI1FJZ - / - 3 Partial capture
09-15 20:16 60m -8 / - D44TWO - / - 5 Partial capture
09-15 20:11 60m -17 / -14 C31CT -5 / +5 2 Partial capture
08-30 20:10 20m - / -10 EA6UE -12 / - 3 ✓ Closing fragment
08-30 19:44 20m - / -14 BG4UVR -17 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

60m
UTC    dB Audio  Message
200030 -16 1697  F4CYH OK1JR JO60
200045 -21 1697  OK1JR F4CYH +06
200100 -13 1697  F4CYH OK1JR R-02
200115 -22 1697  OK1JR F4CYH RR73
200130 -10 1697  F4CYH OK1JR 73
210245 -18 2145  OK1JR OK1BN JO70 (x5)
210515 -11  974  OK1JR Z61DX -10
210515 -17 2145  OK1JR OK1BN JO70
212000  +2  475  OK1JR G0ABI -12 (x3)
40m
UTC    dB Audio  Message
171530  -8 1249  IT9JNN OK1JR -23 (x2)
172600  -7 1964  F4AGZ OK1JR 73
172830  +1  553  M8BJL OK1JR JO60
172945  -6 1788  G6ZRV OK1JR JO60
173030 -10 1788  OK1JR G6ZRV -10 (x2)
173115  -4 1788  G6ZRV OK1JR R-09
173130 -10 1788  OK1JR G6ZRV -10
173145 -12 1788  G6ZRV OK1JR R-06
173315  -4  513  OH3DJP OK1JR JO60
125915 -12 1861  OK4TO OK1JR JO60
125930 -10 1860  OK1JR OK4TO -12
125945 -10 1861  OK4TO OK1JR R+11 (x2)
80m
UTC    dB Audio  Message
202030 -15 1392  OK1JR EA3HMM JN00 (x3)
233115  +2 1204  RI1FJZ OK1JR JO60 (x3)
210615  +1 1375  DO8PAT OK1JR JO60 (x2)
210700  -5 1375  OK1JR DO8PAT RRR
210715  +1 1375  DO8PAT OK1JR 73
210745  -2 2287  OH1HB OK1JR JO60
210800  +1 2287  OK1JR OH1HB -03
210815  -1 2287  OH1HB OK1JR R-04
210830  +2 2287  OK1JR OH1HB RR73
210845  +1 2287  OH1HB OK1JR 73
160m
UTC    dB Audio  Message
213130 -17 1258  F8FUA OK1JR JO60 (x2)
20m
UTC    dB Audio  Message
175215  +6 2414  FR5FK OK1JR JO60 (x7)
181115 -19 1882  OK1JR SV9COL -16
181845  -4 1473  OK1JR IU1DXU RR73
194430 -14 1774  OK1JR BG4UVR -14 (x2)
201015 -13 1205  OK1JR EA6UE -10 (x3)
201345 -13 1206  OK1JR F5OYA/P JN13

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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