RZ0SW — 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 RZ0SW, decoded by SO8OO in southeastern Poland. 1,259 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 41 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 1,259 FT8 messages attributed to RZ0SW as the transmitting token by decoded message structure across 41 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (59%), followed by 20 m (28%) and 160 m (8%). Most decodes (86%) fell within the six-hour window 12:00-18:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (64%); the estimated median was -17.9 dB.
Overview
Bands
Last attributed message: 2026-10-23 17:30 UTC
Observed FT8 message patterns
- Attributed sample
- 1,259 messages
- Active dates
- 41 UTC dates
- Estimated median S/N
- -17.9 dB
- Estimated 10th-90th percentile
- -24 to -8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 802, moderate (-15 to -9 dB) 320, strong (≥ -8 dB) 137.
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 RZ0SW 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 RZ0SW
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
- OO13 · 724 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 5,298 km (approx.)
- Last such locator decoded
- 2026-10-23 17:30 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 | RZ0SW S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 17:31 | 80m | - / - | UA4NCX | -13 / - | 2 | Partial capture |
| 10-23 17:28 | 80m | -19 / -7 | R3KBY | -2 / -13 | 3 | Partial capture |
| 10-23 17:25 | 80m | -13 / -17 | DK3UA | +9 / -20 | 7 | ✓ Full exchange observed |
| 10-23 17:22 | 80m | -10 / - | ZL4KX | - / - | 4 | Partial capture |
| 10-23 17:21 | 80m | -16 / - | RC4HAA | -4 / -11 | 3 | ✓ Closing observed |
| 10-23 17:17 | 80m | - / -23 | EA3E | -4 / - | 24 | Partial capture |
| 10-23 17:14 | 80m | - / -15 | R2DGN | +2 / - | 3 | ✓ Closing fragment |
| 10-23 17:09 | 80m | - / -7 | UA6ANQ | 0 / - | 2 | ✓ Closing fragment |
| 10-23 17:07 | 80m | - / - | EA3E | -2 / - | 13 | Partial capture |
| 10-23 17:07 | 80m | -10 / -5 | UN7AB | -11 / -16 | 4 | ✓ Full exchange observed |
| 10-23 17:05 | 80m | - / - | RA1QCX | -11 / - | 2 | Partial capture |
| 10-23 17:03 | 80m | -16 / - | RA4CPA | -3 / -12 | 3 | ✓ Closing observed |
| 10-23 16:55 | 80m | -15 / - | F8FUA | - / - | 2 | Partial capture |
| 10-23 16:53 | 80m | -15 / -10 | R6DVW | -3 / -14 | 5 | ✓ Full exchange observed |
| 10-23 16:49 | 80m | -18 / - | RK4PR | - / -11 | 2 | Partial capture |
| 10-23 16:42 | 160m | - / - | RA3SI | -20 / - | 2 | Partial capture |
| 10-23 16:42 | 160m | - / - | YO2OXD | -1 / - | 3 | Partial capture |
| 10-23 16:38 | 160m | - / -13 | RK1N | -16 / - | 7 | Partial capture |
| 10-23 16:34 | 80m | - / -19 | RA6MQ | -17 / - | 5 | Partial capture |
| 10-23 16:33 | 80m | - / -7 | RC9WC | -10 / - | 2 | ✓ Closing fragment |
| 10-23 16:32 | 80m | - / - | OH1AYR | -8 / - | 3 | Partial capture |
| 10-23 16:29 | 80m | - / - | R9CS/P | -13 / - | 3 | Partial capture |
| 10-23 16:27 | 80m | - / - | IQ4JO | +2 / - | 2 | Partial capture |
| 10-23 16:25 | 80m | - / - | YU9MBA | -6 / - | 2 | Partial capture |
| 10-23 16:03 | 80m | - / - | E70SZ | +6 / - | 5 | Partial capture |
| 10-23 15:51 | 80m | - / - | YO2OXD | -1 / - | 4 | Partial capture |
| 10-23 15:48 | 80m | - / 0 | 4O4A | +10 / - | 3 | ✓ Closing fragment |
| 10-23 15:47 | 80m | - / - | R5BM | -2 / - | 2 | Partial capture |
| 10-23 15:42 | 80m | - / - | F6BPZ | -1 / - | 11 | Partial capture |
| 10-23 15:41 | 80m | -8 / -24 | RX9KJ | -12 / -13 | 7 | ✓ Full exchange observed |
| 10-23 15:38 | 80m | -8 / - | UB0SMX | - / - | 2 | Partial capture |
| 10-23 15:37 | 80m | -6 / -8 | RK4UZ | -10 / -14 | 6 | ✓ Full exchange observed |
| 10-23 15:35 | 160m | - / -6 | RA3QTT | -11 / - | 5 | Partial capture |
| 10-23 15:13 | 160m | - / - | RA1WU | -12 / - | 4 | Partial capture |
| 10-23 15:02 | 160m | - / -19 | UA3EDQ | -9 / - | 6 | ✓ Closing fragment |
| 10-23 14:22 | 160m | - / -9 | RN9N | -20 / - | 2 | ✓ Closing fragment |
| 10-22 17:37 | 160m | - / - | UA3UBV | -18 / - | 2 | Partial capture |
| 10-22 17:35 | 160m | - / - | RT3G | -7 / - | 4 | Partial capture |
| 10-22 17:23 | 160m | - / - | R3LA | +4 / - | 6 | Partial capture |
| 10-22 17:23 | 160m | - / -22 | RW3LL | +6 / - | 6 | ✓ Closing fragment |
| 10-22 17:16 | 160m | - / -15 | EU1KY | +17 / - | 3 | ✓ Closing fragment |
| 10-22 17:14 | 160m | - / -12 | RT2P | -7 / - | 4 | Partial capture |
| 10-22 17:11 | 160m | - / - | RW3LL | +6 / - | 2 | Partial capture |
| 10-22 17:11 | 160m | - / - | EU1KY | +8 / - | 2 | Partial capture |
| 10-22 16:56 | 160m | - / - | RK6MC | -18 / - | 3 | Partial capture |
| 10-22 16:52 | 160m | - / -14 | UA6ASQ | -20 / - | 4 | Partial capture |
| 10-22 16:05 | 80m | - / -13 | R9FFJ | -5 / - | 2 | ✓ Closing fragment |
| 10-22 15:53 | 160m | - / - | R4FDK | -20 / - | 5 | Partial capture |
| 10-22 15:51 | 160m | - / -15 | R7AW | -10 / - | 2 | ✓ Closing fragment |
| 10-22 15:49 | 160m | - / - | IZ7NLJ | -20 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 172730 +12 1284 RZ0SW DK3UA 73 172745 -11 1285 CQ RZ0SW OO13 172800 -2 647 RZ0SW EA3E R-23 172815 -14 1285 CQ RZ0SW OO13 172830 -3 1274 RZ0SW R3KBY KO90 172830 -4 647 RZ0SW EA3E R-23 172845 -19 1285 R3KBY RZ0SW -13 172900 -1 1274 RZ0SW R3KBY R-07 172900 -11 647 RZ0SW EA3E R-23 (x3) 173015 -12 1284 CQ RZ0SW OO13 173100 -9 1652 RZ0SW UA4NCX LO48 (x2) 173200 -8 1503 RZ0SW HB3YTK JN46
UTC dB Audio Message 153630 -8 1482 RZ0SW RA3QTT -13 (x3) 163830 -19 1162 RZ0SW RK1N -13 (x5) 164200 +0 2511 RZ0SW YO2OXD KN05 164200 -19 2158 RZ0SW RK1N -13 164230 -1 2511 RZ0SW YO2OXD KN05 164230 -16 2158 RZ0SW RK1N -13 164230 -18 1771 RZ0SW RA3SI LO04 164300 -1 2511 RZ0SW YO2OXD KN05 164300 -22 1771 RZ0SW RA3SI LO04
UTC dB Audio Message 162745 -8 1424 RZ0SW YO6FNF -14 (x2) 162815 +11 2444 RZ0SW LZ2WP 73 162845 -14 1423 RZ0SW YO6FNF RR73 163115 +5 2170 RZ0SW OK1DTC R-17 (x2) 163330 -3 1426 RZ0SW DL4FAP R-12 163415 -12 1865 RZ0SW R6BH -03 163430 -1 1426 RZ0SW DL4FAP R-12 (x2) 163615 -15 1865 RZ0SW R6BH RR73 163845 -18 1426 RZ0SW IT9PHU -18 (x4)
UTC dB Audio Message 180845 +10 2483 RZ0SW DG0OBU -16 (x3) 170230 +0 1773 RZ0SW SP6CIK JO80 (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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