RU3FA — 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 RU3FA, decoded by SO8OO in southeastern Poland. 1,413 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 84 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-21.
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 1,413 FT8 messages attributed to RU3FA as the transmitting token by decoded message structure across 84 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (32%), followed by 160 m (24%) and 80 m (24%). Most decodes (63%) fell within the six-hour window 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.
Overview
Bands
Last attributed message: 2026-10-21 14:31 UTC
Observed FT8 message patterns
- Attributed sample
- 1,413 messages
- Active dates
- 84 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -21 to +1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 473, moderate (-15 to -9 dB) 428, strong (≥ -8 dB) 512.
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 RU3FA 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 RU3FA
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
- KO84 · 975 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,150 km (approx.)
- Last such locator decoded
- 2026-10-21 14:30 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 | RU3FA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-21 14:33 | 40m | - / - | OK2CNI | +2 / - | 6 | Partial capture |
| 10-21 14:30 | 40m | -14 / - | UN9LBC | - / -5 | 2 | ✓ Closing fragment |
| 10-21 14:26 | 40m | -13 / -11 | IQ4JHE | -9 / -15 | 6 | ✓ Full exchange observed |
| 10-20 02:56 | 160m | -17 / -3 | OH7DSQ | -7 / - | 2 | Partial capture |
| 10-18 03:34 | 80m | - / - | F1IQH | -8 / - | 3 | Partial capture |
| 10-16 15:30 | 40m | -24 / -12 | RJ4H | -17 / +8 | 2 | Partial capture |
| 10-16 14:43 | 10m | - / -10 | TN8GD | -10 / - | 2 | ✓ Closing fragment |
| 10-15 23:04 | 80m | - / - | IU5HIU | -2 / - | 3 | Partial capture |
| 10-15 19:09 | 40m | - / - | DA0M | -10 / - | 2 | Partial capture |
| 10-15 19:03 | 40m | - / -18 | PC6A | +2 / - | 2 | ✓ Closing fragment |
| 10-15 18:55 | 80m | -14 / +7 | R3KLE | -9 / -3 | 4 | ✓ Full exchange observed |
| 10-15 10:31 | 40m | -17 / - | PE9JAN | -15 / -13 | 2 | Partial capture |
| 10-15 10:26 | 40m | -16 / - | RW4HRE | - / -12 | 2 | ✓ Closing fragment |
| 10-15 02:50 | 40m | - / - | F4HKP | -1 / - | 4 | Partial capture |
| 10-15 02:50 | 40m | - / - | SV5BYP | -15 / - | 2 | Partial capture |
| 10-14 21:16 | 80m | - / -1 | R5AV | 0 / - | 2 | ✓ Closing fragment |
| 10-14 19:35 | 80m | - / -5 | RA2FU | -8 / - | 2 | ✓ Closing fragment |
| 10-13 19:59 | 80m | - / +6 | ES2AJ | +10 / - | 2 | Partial capture |
| 10-13 18:38 | 40m | - / - | M9XPN | -14 / - | 2 | Partial capture |
| 10-13 02:36 | 40m | - / -8 | TA4SSK | -11 / - | 5 | ✓ Closing fragment |
| 10-12 22:49 | 80m | - / -3 | RA3WY | +6 / - | 2 | ✓ Closing fragment |
| 10-12 22:33 | 80m | -14 / -12 | SV1EAG | -19 / - | 3 | ✓ Closing observed |
| 10-12 22:29 | 80m | -12 / -4 | OK1CI | +8 / - | 3 | ✓ Closing observed |
| 10-11 23:30 | 40m | - / -5 | AO70URV | -8 / - | 2 | Partial capture |
| 10-11 02:20 | 80m | - / - | DO1ANB | -21 / - | 6 | Partial capture |
| 10-11 02:19 | 80m | -20 / 0 | RW6HP | -10 / -11 | 3 | ✓ Full exchange observed |
| 10-09 19:58 | 160m | -24 / -2 | RA3WY | -7 / -5 | 5 | ✓ Full exchange observed |
| 10-09 19:56 | 160m | - / -2 | R3ZP | -11 / - | 4 | ✓ Closing fragment |
| 10-09 19:45 | 80m | - / -7 | UC6D | +7 / - | 3 | ✓ Closing fragment |
| 10-09 10:58 | 40m | - / -16 | OZ9FF | -16 / - | 2 | ✓ Closing fragment |
| 10-09 00:04 | 40m | - / -13 | CT2GQA | -9 / - | 3 | ✓ Closing fragment |
| 10-07 23:18 | 40m | - / - | MW7RHR | -14 / - | 2 | Partial capture |
| 10-07 22:11 | 160m | -16 / -10 | UA3IDQ | -6 / -19 | 4 | ✓ Full exchange observed |
| 10-04 02:59 | 40m | - / -10 | G8KHF | +13 / - | 2 | ✓ Closing fragment |
| 10-04 02:47 | 40m | - / - | R6OK | -2 / - | 2 | Partial capture |
| 10-04 01:28 | 80m | - / -12 | IQ9SZ/7 | -1 / - | 5 | Partial capture |
| 10-04 01:24 | 80m | -12 / -3 | DA6OOM | -12 / -17 | 5 | Partial capture |
| 10-04 01:19 | 160m | -10 / -9 | R3ICU | -2 / -19 | 5 | ✓ Full exchange observed |
| 10-03 21:13 | 160m | -16 / -8 | RW9WJ | -15 / -14 | 6 | ✓ Full exchange observed |
| 10-03 19:55 | 160m | -19 / -18 | RA1N | +5 / -1 | 6 | ✓ Closing observed |
| 10-03 06:42 | 40m | -11 / - | HF1Z | - / - | 7 | Partial capture |
| 10-03 06:40 | 40m | -7 / -11 | HG5OGI | -1 / -13 | 5 | ✓ Full exchange observed |
| 10-03 06:27 | 40m | -18 / - | RX1AB | -19 / -18 | 4 | Partial capture |
| 10-03 06:26 | 40m | -16 / -22 | YT2TW | -14 / -17 | 26 | ✓ Full exchange observed |
| 10-03 06:26 | 40m | -13 / -4 | EU1EU | -11 / +4 | 2 | Partial capture |
| 10-03 01:56 | 40m | +11 / - | IZ8PPI | - / -21 | 2 | ✓ Closing fragment |
| 10-03 01:55 | 40m | - / - | RZ4FWA | -14 / - | 2 | Partial capture |
| 10-03 01:17 | 40m | - / - | G3TKT | +1 / - | 5 | Partial capture |
| 10-03 01:08 | 40m | - / -10 | UA3RBM | -4 / - | 2 | Partial capture |
| 10-03 01:07 | 40m | - / +1 | TA3NK | -5 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 142815 -14 1540 CQ RU3FA KO84 a1 142830 -11 1542 RU3FA IQ4JHE -14 142845 -13 1541 IQ4JHE RU3FA R-15 142900 -3 1541 RU3FA IQ4JHE RR73 142945 -13 1541 CQ RU3FA KO84 (x2) 143030 -4 1541 RU3FA DL4PY JO30 143045 -17 1540 UN9LBC RU3FA -05 (x2) 143330 +5 2555 RU3FA OK2CNI JN79 (x6)
UTC dB Audio Message 195815 -24 1755 RA3WY RU3FA KO84 195830 -8 1551 RU3FA RA3WY -02 195915 -24 1755 RA3WY RU3FA R-05 200030 -6 1551 RU3FA RA3WY RR73 (x2) 023100 -19 1621 CQ RU3FA KO84 (x7) 025615 -17 1692 OH7DSQ RU3FA KO84 025630 -7 2500 RU3FA OH7DSQ -03 025945 -20 1545 CQ RU3FA KO84
UTC dB Audio Message 230430 -2 302 RU3FA IU5HIU JN53 (x2) 033415 -12 304 CQ RU3FA KO84 033430 -11 304 RU3FA F1IQH JN27 033445 -14 303 CQ RU3FA KO84 033500 -8 304 RU3FA F1IQH JN27 033515 -3 303 CQ RU3FA KO84 033530 -6 303 RU3FA F1IQH JN27 033545 -7 303 CQ RU3FA KO84 (x7)
UTC dB Audio Message 174600 -20 1852 SN4K RU3FA +04 (x2) 174700 -21 1848 CQ RU3FA KO84 (x5) 080215 -9 1655 YU7MA RU3FA -05 (x2) 125500 -14 1765 RU3FA LZ2CC -23 165530 -16 1470 RU3FA PD4DX JO33 (x2) 185145 -21 1797 CQ RU3FA KO84 144330 -7 623 RU3FA TN8GD -10 (x2)
UTC dB Audio Message 201245 -16 1797 RU3FA TA2ED RR73 201730 -13 1799 CQ RU3FA KO84 201800 -17 1799 IZ5YBN RU3FA -14 (x6) 202200 -10 1799 M7GYP RU3FA -14 202215 -6 728 RU3FA M7GYP R+02 202230 -5 1799 M7GYP RU3FA RR73 202245 -7 728 RU3FA M7GYP 73 202430 -6 1800 CQ RU3FA KO84 (x3)
UTC dB Audio Message 224915 -5 1631 RU3FA PG7R JO22 (x3)
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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