KR4NRR — 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 KR4NRR, decoded by SO8OO in southeastern Poland. 20 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-23 and 2026-09-23.
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 20 FT8 messages attributed to KR4NRR as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (95%), followed by 20 m (5%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.
Overview
Bands
Last attributed message: 2026-09-23 02:45 UTC
Observed FT8 message patterns
- Attributed sample
- 20 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -15 dB
- Estimated 10th-90th percentile
- -23 to -11 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 1.
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 KR4NRR 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 KR4NRR
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
- EM78 · 6 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,859 km (approx.)
- Last such locator decoded
- 2026-09-23 02:44 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 | KR4NRR S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-18 02:54 | 40m | - / -14 | G8KHF | -2 / - | 2 | Partial capture |
| 10-12 01:55 | 40m | - / -19 | EC3A | +10 / - | 2 | ✓ Closing fragment |
| 10-11 01:47 | 80m | - / -2 | KF8EXX | -22 / - | 2 | ✓ Closing fragment |
| 10-07 00:25 | 40m | - / +1 | CT3MD | -9 / - | 2 | ✓ Closing fragment |
| 10-04 01:57 | 40m | - / -19 | G8KHF | +2 / - | 4 | Partial capture |
| 09-23 02:44 | 40m | -8 / - | R2EC | - / - | 2 | ✓ Closing fragment |
| 09-23 02:26 | 40m | -17 / - | EW4PA | - / -13 | 3 | Partial capture |
| 09-23 02:24 | 40m | - / -13 | SV5AZK | -12 / - | 9 | Partial capture |
| 09-23 02:14 | 40m | -18 / - | EK/RX3DPK | - / - | 2 | Partial capture |
| 09-23 02:12 | 40m | -15 / - | J88IH | - / -20 | 4 | ✓ Closing fragment |
| 09-20 04:11 | 40m | - / -11 | IU5TPM | -8 / - | 4 | ✓ Closing fragment |
| 09-20 04:09 | 40m | - / -7 | GJ0KYZ | +3 / - | 3 | Partial capture |
| 09-20 03:55 | 40m | - / -19 | UC6D | +8 / - | 2 | Partial capture |
| 09-20 03:55 | 40m | - / - | UA3GIE | 0 / - | 7 | Partial capture |
| 09-20 03:53 | 40m | - / - | PE1NPS | +1 / - | 3 | Partial capture |
| 09-20 03:50 | 40m | - / -8 | ON1DGN | -3 / - | 5 | ✓ Closing fragment |
| 09-20 03:50 | 40m | - / - | OH1EDK | -1 / - | 6 | Partial capture |
| 09-20 03:47 | 40m | - / -9 | DL1SRS | -3 / - | 7 | ✓ Closing fragment |
| 09-20 03:39 | 40m | - / -10 | F4CQS | -13 / - | 3 | ✓ Closing fragment |
| 09-20 03:39 | 40m | - / -19 | UC6D | +9 / - | 2 | Partial capture |
| 09-20 03:38 | 40m | - / -9 | IK6DLK | +7 / - | 3 | ✓ Closing fragment |
| 09-20 03:31 | 40m | - / -19 | UC6D | +13 / - | 3 | ✓ Closing fragment |
| 09-20 03:25 | 40m | - / -12 | SV2HTW | +8 / - | 2 | ✓ Closing fragment |
| 09-19 02:58 | 40m | - / -1 | EA8BS | -9 / - | 2 | ✓ Closing fragment |
| 09-19 02:47 | 40m | - / -6 | N4NF | -18 / - | 3 | Partial capture |
| 09-18 02:36 | 40m | - / -8 | F5PBG | -7 / - | 4 | ✓ Closing fragment |
| 09-18 02:28 | 40m | - / - | F5PBG | 0 / - | 2 | Partial capture |
| 09-18 02:24 | 40m | - / -11 | IQ0AAI | +4 / - | 2 | ✓ Closing fragment |
| 09-13 03:15 | 40m | -14 / - | AB2RR | - / +1 | 2 | Partial capture |
| 09-13 03:12 | 40m | - / -15 | EI2IXB | +5 / - | 3 | Partial capture |
| 09-11 02:39 | 40m | - / -4 | MI7XHT | -8 / - | 2 | Partial capture |
| 09-11 02:29 | 40m | - / -19 | HZ1TT | -7 / - | 3 | ✓ Closing fragment |
| 09-10 01:27 | 40m | - / -12 | EA1CQ | -10 / - | 5 | ✓ Closing fragment |
| 09-10 01:17 | 40m | - / -9 | CR7BRV | -2 / - | 3 | ✓ Closing fragment |
| 09-01 01:21 | 40m | - / -12 | OK1WCF | -21 / - | 3 | ✓ Closing fragment |
| 08-31 00:52 | 40m | - / - | EB3JT | +2 / - | 5 | Partial capture |
| 08-30 20:41 | 20m | - / -18 | M0GQC | -6 / - | 2 | ✓ Closing fragment |
| 08-30 04:13 | 40m | - / - | S53F | -10 / - | 4 | Partial capture |
| 08-30 04:04 | 40m | - / - | MI7XHT | -12 / - | 2 | Partial capture |
| 08-29 20:52 | 20m | - / - | EB4DMH | -10 / - | 2 | Partial capture |
| 08-29 03:21 | 40m | - / -5 | IT9VCE | -4 / - | 3 | ✓ Closing fragment |
| 08-29 03:20 | 40m | - / - | IZ8VYU | -7 / - | 2 | Partial capture |
| 08-29 03:18 | 40m | - / 0 | CT7AUT | -10 / - | 3 | ✓ Closing fragment |
| 08-28 03:34 | 20m | - / - | RA3FY | -4 / - | 2 | Partial capture |
| 08-28 03:26 | 20m | - / -14 | UB8CPH | +1 / - | 2 | ✓ Closing fragment |
| 08-28 03:24 | 20m | - / -16 | XQ1KK | -8 / - | 2 | ✓ Closing fragment |
| 08-28 03:15 | 20m | - / -14 | R7WA | +6 / - | 4 | ✓ Closing fragment |
| 08-28 03:14 | 20m | - / -17 | EX8ABC | -8 / - | 4 | Partial capture |
| 08-28 03:13 | 20m | - / - | 5Z4VJ | -10 / - | 3 | Partial capture |
| 08-28 03:06 | 20m | - / -12 | RX9ABI | -3 / - | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 022830 -10 1442 KR4NRR SV5AZK -13 (x3) 024445 -8 2811 R2EC KR4NRR EM78 (x2) 015700 +4 1084 KR4NRR G8KHF -19 (x4) 002515 -12 922 KR4NRR CT3MD +01 (x2) 015530 +10 742 KR4NRR EC3A -19 (x2) 025430 -7 883 KR4NRR G8KHF -14 (x2)
UTC dB Audio Message 014715 -22 2208 KR4NRR KF8EXX -02 (x2)
UTC dB Audio Message 031515 -6 877 KR4NRR EX8ABC R-17 031545 +8 1933 KR4NRR R7WA LN32 (x2) 031615 -13 877 KR4NRR EX8ABC R-18 031645 +5 1933 KR4NRR R7WA 73 032430 -6 934 KR4NRR XQ1KK -16 (x2) 032615 +2 3071 KR4NRR UB8CPH -14 (x2) 033415 -5 1777 KR4NRR RA3FY KO85 (x2) 205215 -10 2383 KR4NRR EB4DMH IN80 (x2) 204100 -8 2078 KR4NRR M0GQC -18 (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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