OH4KRN — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving OH4KRN, decoded by SO8OO in southeastern Poland. 410 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 37 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-23.
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 410 FT8 messages attributed to OH4KRN as the transmitting token by decoded message structure across 37 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (80%), followed by 20 m (12%) and 160 m (6%). Several six-hour UTC windows tied for the largest share (92%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.
Overview
Bands
Last attributed message: 2026-10-23 19:33 UTC
Observed FT8 message patterns
- Attributed sample
- 410 messages
- Active dates
- 37 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -18 to -1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 80, moderate (-15 to -9 dB) 152, strong (≥ -8 dB) 178.
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.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with OH4KRN in decoded directed-looking exchanges:
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 OH4KRN
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
- KP32 · 128 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,432 km (approx.)
- Last such locator decoded
- 2026-10-23 19:13 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 UTC | Band | OH4KRN S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 19:34 | 80m | - / - | DO3VE | +11 / - | 3 | Partial capture |
| 10-23 19:32 | 80m | -8 / -7 | 2E0FHM | -10 / -11 | 4 | ✓ Full exchange observed |
| 10-23 19:28 | 80m | -5 / -8 | OV9A | +8 / -16 | 5 | ✓ Full exchange observed |
| 10-23 19:22 | 80m | - / -14 | SP7SZJ | -12 / - | 2 | ✓ Closing fragment |
| 10-23 19:16 | 80m | - / - | DO1SWC | -11 / - | 5 | Partial capture |
| 10-23 19:16 | 80m | - / -14 | YO2LIM | +5 / - | 7 | ✓ Closing fragment |
| 10-23 19:14 | 80m | - / +1 | OM3TWM | -2 / - | 2 | Partial capture |
| 10-23 19:01 | 160m | -17 / -12 | DG5CST | +18 / -10 | 4 | ✓ Full exchange observed |
| 10-23 18:57 | 160m | -17 / -20 | RY3K | +6 / -11 | 5 | ✓ Full exchange observed |
| 10-23 18:52 | 160m | - / -11 | RA3VX | -9 / - | 2 | ✓ Closing fragment |
| 10-23 18:51 | 160m | - / - | RA4Y | -8 / - | 8 | Partial capture |
| 10-23 18:34 | 80m | - / -15 | DG3YEV | +5 / - | 10 | Partial capture |
| 10-23 18:31 | 80m | -13 / - | LB6LK | - / - | 2 | Partial capture |
| 10-23 18:28 | 80m | -17 / -16 | YO3FRI | +4 / -17 | 5 | ✓ Full exchange observed |
| 10-23 18:19 | 80m | +3 / -12 | RU9AD | -11 / -11 | 7 | ✓ Full exchange observed |
| 10-23 18:17 | 80m | +1 / -1 | EW6BZ | +10 / -10 | 5 | ✓ Full exchange observed |
| 10-18 19:25 | 80m | -4 / -11 | UW5KW | +16 / -9 | 6 | ✓ Full exchange observed |
| 10-18 19:23 | 80m | - / -12 | SP9TBT | +9 / - | 4 | ✓ Closing fragment |
| 10-18 19:17 | 160m | -19 / -14 | SP8NR | +12 / - | 4 | ✓ Closing observed |
| 10-18 19:15 | 160m | -22 / -16 | R80SAA | +10 / - | 4 | ✓ Closing observed |
| 10-17 19:37 | 80m | -14 / - | LZ2EV | - / -13 | 2 | Partial capture |
| 10-17 19:30 | 80m | - / - | PA0MUS | -8 / - | 2 | Partial capture |
| 10-17 19:28 | 80m | -8 / 0 | TF4M | -14 / -10 | 5 | ✓ Full exchange observed |
| 10-17 19:24 | 80m | -9 / -3 | OH9FTW | -4 / -11 | 4 | ✓ Full exchange observed |
| 10-17 19:22 | 80m | -6 / +2 | OZ1KWJ | +3 / -11 | 4 | ✓ Full exchange observed |
| 10-17 19:07 | 160m | - / -4 | OH5KNL | +5 / - | 3 | ✓ Closing fragment |
| 10-17 19:05 | 160m | - / -9 | RU3FM | +1 / - | 2 | Partial capture |
| 10-16 19:52 | 80m | - / - | OZ1HPS | +6 / - | 7 | Partial capture |
| 10-16 19:41 | 80m | - / - | OZ1HPS | +4 / - | 2 | Partial capture |
| 10-16 19:37 | 80m | -6 / - | EA8DO | - / -7 | 4 | Partial capture |
| 10-16 19:32 | 80m | - / -15 | UT0UI | -7 / - | 2 | Partial capture |
| 10-16 19:16 | 80m | -14 / -13 | RU9AD | -4 / - | 3 | Partial capture |
| 10-16 19:15 | 80m | - / - | DO3ME | +4 / - | 6 | Partial capture |
| 10-16 19:14 | 80m | -11 / -7 | IZ8XXE | +2 / -15 | 4 | ✓ Full exchange observed |
| 10-16 19:12 | 80m | - / -18 | DO5HOK | -3 / - | 2 | Partial capture |
| 10-16 19:02 | 80m | -5 / - | SM3PZG | -3 / -1 | 5 | ✓ Closing observed |
| 10-16 18:58 | 80m | -4 / -14 | HA1RJ | +18 / -11 | 8 | ✓ Full exchange observed |
| 10-16 18:53 | 80m | -2 / - | IV3SKB | - / -10 | 4 | Partial capture |
| 10-16 18:50 | 80m | -14 / - | RA4CQW/P | - / -9 | 3 | Partial capture |
| 10-16 05:29 | 80m | - / -15 | PE2JMR | +2 / - | 6 | Partial capture |
| 10-16 05:19 | 80m | -24 / -12 | DG1FK | +1 / -6 | 4 | Partial capture |
| 10-16 05:12 | 80m | - / - | G3TFL | -17 / - | 4 | Partial capture |
| 10-16 05:11 | 80m | - / -18 | DL1UDO | 0 / - | 2 | ✓ Closing fragment |
| 10-16 05:08 | 80m | - / -25 | SP5MXZ | +14 / - | 4 | ✓ Closing fragment |
| 10-16 05:03 | 80m | - / -18 | SM7TZK | -2 / - | 2 | ✓ Closing fragment |
| 10-16 04:58 | 80m | - / -14 | GM6URC | -8 / - | 5 | ✓ Closing fragment |
| 10-16 04:55 | 80m | -12 / -14 | MI0NWA | +2 / - | 2 | Partial capture |
| 10-09 19:04 | 80m | - / - | DO2ANW | -3 / - | 8 | Partial capture |
| 10-09 19:04 | 80m | -11 / - | R3DFS | -15 / -16 | 4 | ✓ Closing observed |
| 10-09 19:02 | 80m | -11 / +3 | DL3IKE | -9 / - | 6 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 192230 -10 1592 OH4KRN SP7SZJ RR73 192645 +1 1100 OH4KRN DB100FT -15 192700 -11 1145 YU65AEC OH4KRN R-17 192830 -7 1145 OV9A OH4KRN -16 (x2) 192915 +6 2708 OH4KRN OV9A R-08 192930 -5 1145 OV9A OH4KRN RR73 192945 +11 2708 OH4KRN OV9A 73 193245 -10 1270 OH4KRN 2E0FHM -07 193300 -4 1145 2E0FHM OH4KRN R-11 193315 -11 1270 OH4KRN 2E0FHM RR73 193330 -12 1145 2E0FHM OH4KRN 73 193445 +9 689 OH4KRN DO3VE JO52 (x3)
UTC dB Audio Message 185245 -12 1561 OH4KRN RA3VX RR73 185315 -6 1508 OH4KRN RA4Y LO35 (x4) 185700 +7 2301 OH4KRN RY3K LO00 185700 +1 1351 OH4KRN OH8JP 73 185745 -15 1121 RY3K OH4KRN -11 185830 +7 2301 OH4KRN RY3K R-20 185845 -19 2301 RY3K OH4KRN RR73 185900 +3 2301 OH4KRN RY3K 73 190115 -17 1200 DG5CST OH4KRN -10 190130 +23 905 OH4KRN DG5CST R-12 190145 -17 1200 DG5CST OH4KRN RR73 190200 +14 905 OH4KRN DG5CST 73
UTC dB Audio Message 194015 -3 885 OH4KRN OZ4ABH 73 194115 +18 642 OH4KRN HB9ELE -05 (x2) 195000 -17 1597 EA5KB OH4KRN -12 182900 -15 2410 OH4KRN IQ8DO RR73 183000 -8 2098 OH4KRN PD0MNO +04 183545 -17 1158 SP5ALV OH4KRN RR73 183930 -10 1716 OH4KRN EX7CQ R-08 (x2) 184015 -12 589 OE2CAL OH4KRN -06 184030 +24 535 OH4KRN OE2CAL R-17 (x3) 184415 -4 709 OE2CAL OH4KRN R-07 184830 -5 2301 G0VXM OH4KRN KP32
UTC dB Audio Message 063745 -11 954 DF2AP OH4KRN KP32 (x4) 064230 -17 1057 OH4KRN UA9FLJ RR73 065500 +3 656 RC9WC OH4KRN KP32 065515 -4 1458 OH4KRN RC9WC -08 065530 +4 656 RC9WC OH4KRN R-15 065545 -8 1459 OH4KRN RC9WC RR73 065600 +3 656 RC9WC OH4KRN R-15 065615 -6 1458 OH4KRN RC9WC RR73 070645 -4 655 DK6WH OH4KRN -03 (x2) 073230 +1 966 UT2PC OH4KRN +00 (x2)
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.
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