RA2FU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RA2FU, decoded by SO8OO in southeastern Poland. 4,953 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 72 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-09.
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 4,953 FT8 messages attributed to RA2FU as the transmitting token by decoded message structure across 72 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (96%), followed by 40 m (2%) and 20 m (1%). Several six-hour UTC windows tied for the largest share (99%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (72%); the estimated median was -5 dB.
Overview
Bands
Last attributed message: 2026-09-09 19:16 UTC
Observed FT8 message patterns
- Attributed sample
- 4,953 messages
- Active dates
- 72 UTC dates
- Estimated median S/N
- -5 dB
- Estimated 10th-90th percentile
- -13 to +4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 271, moderate (-15 to -9 dB) 1,112, strong (≥ -8 dB) 3,570.
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 RA2FU 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 RA2FU
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
- KO04 · 2,131 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 510 km (approx.)
- Last such locator decoded
- 2026-09-09 19:16 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 | RA2FU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-09 19:13 | 80m | 0 / - | R3XBV | -16 / -6 | 2 | Partial capture |
| 09-09 19:08 | 80m | - / -7 | G6CUT | -1 / - | 4 | ✓ Closing fragment |
| 09-09 19:07 | 80m | -3 / -9 | SQ8GBG | +11 / +8 | 4 | ✓ Full exchange observed |
| 09-09 18:50 | 80m | -1 / -16 | DH1KJ | -3 / -9 | 7 | ✓ Full exchange observed |
| 09-09 18:42 | 80m | -9 / - | 9A3KG | -10 / -10 | 8 | Partial capture |
| 09-09 18:36 | 80m | -5 / -7 | OZ1JMJ | -4 / -5 | 5 | ✓ Full exchange observed |
| 09-09 18:29 | 80m | -11 / - | DG5PW | - / -13 | 3 | Partial capture |
| 09-09 18:27 | 80m | -10 / -16 | SP7TAC | +13 / +5 | 5 | ✓ Full exchange observed |
| 09-09 18:23 | 80m | -2 / -2 | DL1DXX | -5 / -9 | 7 | ✓ Full exchange observed |
| 09-09 18:14 | 80m | -10 / -1 | SP1LIS | 0 / -6 | 3 | ✓ Full exchange observed |
| 09-09 18:10 | 80m | -3 / - | RA4PIS | - / -13 | 4 | ✓ Closing fragment |
| 09-09 18:07 | 80m | +1 / - | R4CHN | - / -19 | 5 | ✓ Closing fragment |
| 09-09 18:04 | 80m | -1 / - | HG0NPJ | - / -15 | 3 | ✓ Closing fragment |
| 09-09 17:58 | 80m | -3 / -20 | RA4ACX | -17 / -9 | 6 | ✓ Full exchange observed |
| 09-09 17:56 | 80m | -6 / - | ER5AR | -13 / -18 | 6 | Partial capture |
| 09-09 17:55 | 80m | 0 / -8 | DO3PKE | -6 / -12 | 6 | ✓ Full exchange observed |
| 09-09 17:55 | 80m | - / - | RW3DBX | -6 / - | 2 | Partial capture |
| 09-09 17:54 | 80m | 0 / -5 | OM1II | +8 / -1 | 5 | ✓ Full exchange observed |
| 09-09 17:53 | 80m | - / +1 | DG0OBU | -7 / - | 2 | Partial capture |
| 09-09 17:50 | 80m | +2 / -15 | E74MW | +10 / -11 | 8 | ✓ Full exchange observed |
| 09-08 19:22 | 80m | +5 / -1 | RV3X | -1 / +3 | 2 | Partial capture |
| 09-08 19:19 | 80m | - / -16 | EA1KCN | -17 / - | 3 | ✓ Closing fragment |
| 09-08 19:17 | 80m | - / -8 | DO1SJF | +6 / - | 3 | ✓ Closing fragment |
| 09-08 19:12 | 80m | - / -12 | F1NQP | +7 / - | 3 | ✓ Closing fragment |
| 09-08 19:02 | 80m | - / -14 | DL1JEL | +4 / - | 2 | ✓ Closing fragment |
| 09-08 19:01 | 80m | - / - | IZ8VYF | -14 / - | 2 | Partial capture |
| 09-08 18:57 | 80m | -7 / - | RT4A/QRP | - / -15 | 3 | Partial capture |
| 09-08 18:43 | 80m | +2 / -18 | UC6Y | -13 / -16 | 6 | ✓ Full exchange observed |
| 09-08 18:38 | 80m | +7 / +3 | R2CC | -16 / -7 | 8 | ✓ Full exchange observed |
| 09-08 18:37 | 80m | +7 / - | DL2EH | - / -11 | 3 | ✓ Closing fragment |
| 09-08 18:31 | 80m | 0 / - | UD3T | - / -10 | 3 | ✓ Closing fragment |
| 09-08 18:26 | 80m | +3 / -7 | DC7MA | 0 / -12 | 8 | ✓ Full exchange observed |
| 09-08 18:25 | 80m | -2 / - | DA6OOM | - / -19 | 3 | ✓ Closing fragment |
| 09-08 18:22 | 80m | +3 / -15 | RW4HUD | -14 / - | 4 | ✓ Closing observed |
| 09-08 18:16 | 80m | -4 / +3 | R2GFN | -12 / - | 5 | ✓ Closing observed |
| 09-08 18:07 | 80m | +2 / -5 | EU1EU | 0 / -5 | 3 | ✓ Full exchange observed |
| 09-07 18:59 | 80m | -8 / -4 | SM/DB9LG | -9 / -11 | 9 | Partial capture |
| 09-07 18:55 | 80m | -2 / -3 | EU1EU | -8 / -13 | 4 | ✓ Full exchange observed |
| 09-07 18:51 | 80m | -6 / - | U1BD | - / -15 | 5 | ✓ Closing fragment |
| 09-07 18:48 | 80m | -4 / - | E74MW | +20 / +4 | 4 | Partial capture |
| 09-07 18:45 | 80m | -8 / - | ON1PK | - / -16 | 4 | Partial capture |
| 09-07 18:42 | 80m | 0 / - | UN7AB | - / -3 | 2 | ✓ Closing fragment |
| 09-07 18:38 | 80m | -4 / - | G4SRT | -16 / -19 | 7 | ✓ Closing observed |
| 09-07 18:34 | 80m | -3 / - | 9A9TJ | - / -7 | 3 | Partial capture |
| 09-07 18:32 | 80m | -1 / -15 | M0VPW | -12 / -15 | 6 | ✓ Full exchange observed |
| 09-07 18:24 | 80m | -9 / -20 | OV6ZM | -4 / +1 | 6 | ✓ Full exchange observed |
| 09-07 18:22 | 80m | -14 / -7 | R5AV | -14 / +9 | 4 | ✓ Full exchange observed |
| 09-07 18:20 | 80m | -15 / -13 | OM2WW | -4 / -6 | 3 | Partial capture |
| 09-07 18:16 | 80m | -1 / - | R2DVN | 0 / -3 | 5 | ✓ Closing observed |
| 09-07 18:12 | 80m | -1 / - | SQ100PKP | - / -15 | 5 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 190730 -3 1705 SQ8GBG RA2FU +08 190745 +15 1666 RA2FU SQ8GBG R-09 190815 +1 2433 RA2FU G6CUT IO90 190815 +8 1666 RA2FU SQ8GBG 73 190845 -1 2433 RA2FU G6CUT IO90 (x3) 191130 -9 1827 CQ RA2FU KO04 (x5) 191345 -16 1833 RA2FU R3XBV KO84 191400 +0 1833 R3XBV RA2FU -06 191600 -4 1833 CQ RA2FU KO04
UTC dB Audio Message 063615 -21 1813 RA2FU DL5YEE JO42 (x3) 184015 -17 988 RA2FU DL9ATW JO61 (x3) 193500 -6 854 RA2FU M0RLC JO02 (x4)
UTC dB Audio Message 192015 +2 2914 RA2FU RA3XDX KO85 (x3)
UTC dB Audio Message 144500 +3 729 RA2FU M9VVE R-15 (x15)
UTC dB Audio Message 100545 -5 2952 RA2FU DO1FDK JO41 100715 -16 2526 RA2FU DM5MA JO52 100745 -3 2952 RA2FU DO1FDK JO41 101245 -16 1000 RA2FU RA6ZD KN98 (x2) 101445 -4 2952 RA2FU DO1FDK JO41 103045 -4 1351 RA2FU RN6MA -16 (x2) 103445 -23 1342 RA2FU DO4YNH JO41 103845 -14 835 RA2FU PE9JAN R-12 103845 -3 2559 RA2FU RA6MQ -15 (x4) 104245 -17 1123 RA2FU DF1AG R-11
UTC dB Audio Message 191215 +4 906 RA2FU YO2UKG KN05 (x5) 191745 -12 2530 RA2FU DL3YA JN48 192045 -14 878 RA2FU R3YBG KO73 (x2) 192945 -24 1778 RA2FU M0PEL JO01 (x2) 053530 -18 1013 RA2FU EW2ZC R-02 184845 -14 2253 RA2FU DH1JB JO53 (x4)
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.
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