RZ3O — 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 RZ3O, decoded by SO8OO in southeastern Poland. 458 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 21 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-14.
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 458 FT8 messages attributed to RZ3O as the transmitting token by decoded message structure across 21 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (31%), followed by 160 m (25%) and 40 m (24%). Most decodes (64%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.
Overview
Bands
Last attributed message: 2026-10-14 04:39 UTC
Observed FT8 message patterns
- Attributed sample
- 458 messages
- Active dates
- 21 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -18 to -1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 108, moderate (-15 to -9 dB) 192, strong (≥ -8 dB) 158.
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 RZ3O 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 RZ3O
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
- KO91 · 175 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,221 km (approx.)
- Last such locator decoded
- 2026-10-14 04:39 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 | RZ3O S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-14 04:39 | 40m | - / - | R7DX | +4 / - | 5 | Partial capture |
| 10-14 04:35 | 40m | -10 / - | UA9SY | - / -10 | 2 | ✓ Closing fragment |
| 10-14 04:28 | 40m | -10 / - | TA2EE | - / -14 | 2 | ✓ Closing fragment |
| 10-14 04:27 | 40m | -10 / - | RA4HG | - / 0 | 2 | ✓ Closing fragment |
| 10-14 04:25 | 40m | -10 / -19 | F4BJN | -7 / -17 | 16 | Partial capture |
| 10-14 04:24 | 40m | -11 / -16 | RW9WJ | -14 / -1 | 4 | ✓ Full exchange observed |
| 10-14 04:21 | 40m | -9 / - | R6TA | -15 / -1 | 5 | ✓ Closing observed |
| 10-14 04:19 | 40m | -11 / -18 | F4IIX | -9 / - | 4 | ✓ Closing observed |
| 10-14 04:16 | 40m | -10 / - | RL3QGD | +4 / -14 | 9 | Partial capture |
| 10-14 04:15 | 40m | -11 / - | DL6UCK | - / -15 | 2 | ✓ Closing fragment |
| 10-14 04:11 | 40m | -10 / - | SP9UPH | - / -6 | 2 | ✓ Closing fragment |
| 10-14 04:04 | 40m | -7 / - | OH1LA | - / -2 | 3 | ✓ Closing fragment |
| 10-14 04:03 | 40m | -5 / -10 | F5UOU | +8 / -2 | 6 | ✓ Full exchange observed |
| 10-14 04:02 | 40m | -9 / - | HA7TM | - / +3 | 2 | ✓ Closing fragment |
| 10-14 04:01 | 40m | -9 / - | OK1WCF | - / -3 | 2 | Partial capture |
| 10-04 03:47 | 160m | -16 / - | RA1QEA | - / -15 | 2 | Partial capture |
| 10-03 14:08 | 80m | - / +2 | UA4FKT | -20 / - | 2 | Partial capture |
| 09-24 18:07 | 160m | - / - | RA3YDA | -4 / - | 2 | Partial capture |
| 09-24 18:07 | 160m | - / -14 | RW3DW | -19 / - | 3 | Partial capture |
| 09-24 18:06 | 160m | -19 / - | UA3TJC | - / -19 | 2 | ✓ Closing fragment |
| 09-24 18:02 | 160m | -12 / - | RI1FJZ | - / - | 4 | Partial capture |
| 09-24 17:57 | 160m | -14 / - | RI1FJZ | - / - | 4 | Partial capture |
| 09-24 17:40 | 160m | -17 / - | RI1FJZ | - / - | 14 | Partial capture |
| 09-24 17:38 | 160m | -14 / - | R2DRE | -24 / -10 | 3 | ✓ Closing observed |
| 09-24 17:28 | 160m | -15 / - | RI1FJZ | - / -15 | 4 | Partial capture |
| 09-23 17:28 | 160m | -17 / - | RI1FJZ | - / - | 5 | Partial capture |
| 09-23 17:12 | 160m | -21 / - | RI1FJZ | - / - | 3 | Partial capture |
| 09-20 17:24 | 160m | -12 / - | RI1FJZ | - / - | 4 | Partial capture |
| 09-20 17:13 | 160m | -11 / - | RI1FJZ | - / - | 4 | Partial capture |
| 09-19 19:16 | 160m | -15 / - | RI1FJZ | - / - | 6 | Partial capture |
| 09-19 19:07 | 160m | -4 / - | RI1FJZ | - / -15 | 4 | Partial capture |
| 09-19 18:22 | 160m | -9 / - | RI1FJZ | - / - | 7 | Partial capture |
| 09-19 18:14 | 160m | -10 / -8 | RA1WU | +8 / -22 | 3 | ✓ Full exchange observed |
| 09-19 18:05 | 160m | -9 / - | RI1FJZ | - / -15 | 6 | Partial capture |
| 09-18 17:52 | 160m | -20 / - | RU4SO | - / -10 | 2 | ✓ Closing fragment |
| 09-18 17:49 | 160m | -10 / -16 | RW6HB | -1 / -4 | 4 | ✓ Full exchange observed |
| 09-18 17:40 | 160m | - / -14 | RU3FM | -6 / - | 3 | ✓ Closing fragment |
| 09-18 17:37 | 160m | -15 / - | RV9CX | - / -14 | 2 | ✓ Closing fragment |
| 09-18 16:21 | 80m | -7 / +4 | RY3D | +4 / +2 | 3 | ✓ Full exchange observed |
| 09-18 16:20 | 80m | -10 / +7 | R3KLE | 0 / +4 | 4 | ✓ Full exchange observed |
| 09-18 15:35 | 80m | -12 / +3 | RA3OR | -6 / 0 | 5 | ✓ Full exchange observed |
| 09-18 15:34 | 80m | -16 / - | R4AGO | - / -5 | 2 | ✓ Closing fragment |
| 09-18 15:30 | 80m | -14 / +9 | R6ML | -2 / - | 4 | ✓ Closing observed |
| 09-18 15:29 | 80m | -10 / -2 | UA4HJ | -14 / - | 3 | ✓ Closing observed |
| 09-18 15:27 | 80m | -16 / -4 | RC9WC | -17 / +1 | 4 | ✓ Full exchange observed |
| 09-18 15:26 | 80m | -14 / +1 | UG4L | -14 / 0 | 3 | ✓ Full exchange observed |
| 09-18 15:22 | 80m | -12 / - | RK4PR | - / -2 | 2 | ✓ Closing fragment |
| 09-18 15:20 | 80m | -7 / -16 | R2DRE | -19 / -4 | 5 | ✓ Full exchange observed |
| 09-18 15:20 | 80m | -9 / -7 | R9WJ | -14 / - | 4 | ✓ Closing observed |
| 09-18 15:19 | 80m | -10 / -11 | RD7X | -7 / - | 3 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 043215 -10 438 RZ3O F4BJN R-19 (x4) 043400 -10 435 OH3OJ RZ3O R-05 043430 -8 435 CQ RZ3O KO91 043500 -10 435 UA9SY RZ3O -10 (x2) 043730 -9 435 OH3OJ RZ3O R-11 043900 -13 435 CQ RZ3O KO91 043945 +2 1437 RZ3O R7DX KN84 (x5)
UTC dB Audio Message 175915 -15 2004 RI1FJZ RZ3O KO91 (x5) 180615 -20 2205 UA3TJC RZ3O R-19 (x2) 180700 -18 2013 RZ3O RW3DW -14 (x2) 180730 -5 1580 RZ3O RA3YDA KO62 180800 -19 2013 RZ3O RW3DW -14 180800 -4 1580 RZ3O RA3YDA KO62 180800 -16 1231 RZ3O R3ZG -02 034745 -21 604 RA1QEA RZ3O -15 (x2)
UTC dB Audio Message 153630 -4 1505 RZ3O RA3OR R+03 153645 -13 983 RA3OR RZ3O RR73 153700 -8 1505 RZ3O RA3OR 73 153715 -11 983 CQ RZ3O KO91 162045 -9 1065 R3KLE RZ3O +04 162100 +1 372 RZ3O R3KLE R+07 162115 -10 1065 R3KLE RZ3O RR73 162130 -2 2399 RZ3O RY3D +04 162130 +0 372 RZ3O R3KLE 73 162215 -8 1065 R8CEG RZ3O RR73 162245 -7 1065 RY3D RZ3O R+02 162300 +9 2399 RZ3O RY3D RR73 140800 -21 1711 RZ3O UA4FKT R+02 (x2) 143045 -21 1349 RZ3O R3ICU R+00
UTC dB Audio Message 054430 -13 2305 DK4FP RZ3O -04 (x2) 054600 -11 2305 CQ RZ3O KO91 (x3) 054900 -9 2305 YO5PHL RZ3O RR73 054930 -13 2305 CQ RZ3O KO91 (x2) 055015 +0 2305 RZ3O TA4SSK KM57 055030 -12 2305 TA4SSK RZ3O -19 055045 +0 2305 RZ3O TA4SSK KM57 055100 -10 2305 TA4SSK RZ3O -24 055115 +5 2305 RZ3O TA4SSK KM57 055130 -17 2305 TA4SSK RZ3O -24 055145 -1 2305 RZ3O TA4SSK KM57
UTC dB Audio Message 075415 -12 583 CQ RZ3O KO91 080145 -12 583 OH3DJP RZ3O RR73 100315 -18 2012 <...> RZ3O -17 (x3) 100645 -13 792 R7GR RZ3O -02
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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