R2FDU — 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 R2FDU, decoded by SO8OO in southeastern Poland. 1,961 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 58 UTC dates in the available aggregate history. Observed between 2026-06-07 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 1,961 FT8 messages attributed to R2FDU as the transmitting token by decoded message structure across 58 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (54%), followed by 80 m (25%) and 20 m (20%). Most decodes (71%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -6 dB.
Overview
Bands
Last attributed message: 2026-10-23 05:48 UTC
Observed FT8 message patterns
- Attributed sample
- 1,961 messages
- Active dates
- 58 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -17 to +9.6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 303, moderate (-15 to -9 dB) 520, strong (≥ -8 dB) 1,138.
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 R2FDU 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 R2FDU
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
- JO94 · 408 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 542 km (approx.)
- Last such locator decoded
- 2026-10-18 08:12 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 | R2FDU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 05:46 | 40m | -4 / - | ON8WR | -9 / -6 | 5 | ✓ Full exchange observed |
| 10-23 05:45 | 40m | -1 / +2 | RV3F | -11 / - | 3 | ✓ Closing observed |
| 10-23 05:28 | 40m | - / +5 | IZ2QPP | -5 / - | 3 | ✓ Closing fragment |
| 10-23 05:24 | 40m | - / -12 | IU8RFW | -16 / - | 4 | ✓ Closing fragment |
| 10-23 05:23 | 40m | - / -4 | RL3ZA | -12 / - | 2 | ✓ Closing fragment |
| 10-23 05:20 | 40m | - / +5 | EW8ABG | -2 / - | 2 | ✓ Closing fragment |
| 10-21 05:44 | 40m | - / -7 | 9A5CW | +7 / - | 5 | ✓ Closing fragment |
| 10-20 18:46 | 40m | - / -18 | EA3HKY | -4 / - | 2 | Partial capture |
| 10-20 18:42 | 40m | - / - | EI6JZB | -12 / - | 3 | Partial capture |
| 10-20 18:38 | 40m | - / -11 | R1CBW | -10 / - | 2 | ✓ Closing fragment |
| 10-20 18:34 | 40m | - / - | R3KSJ | -12 / - | 2 | ✓ Closing fragment |
| 10-20 18:34 | 40m | - / +7 | F4EGM | -1 / - | 4 | ✓ Closing fragment |
| 10-20 12:20 | 40m | -7 / - | R4ADJ | - / -18 | 3 | ✓ Closing fragment |
| 10-19 19:45 | 40m | -18 / - | OK2USM | - / -9 | 2 | ✓ Closing fragment |
| 10-18 10:46 | 10m | - / - | EA7Z | -6 / - | 2 | Partial capture |
| 10-18 10:34 | 10m | - / - | CT5JLR | -17 / - | 3 | Partial capture |
| 10-18 08:13 | 40m | -12 / - | PD4RJ | - / -7 | 2 | ✓ Closing fragment |
| 10-18 08:12 | 40m | -12 / +2 | YL3AUR | -17 / +2 | 5 | ✓ Full exchange observed |
| 10-18 08:07 | 40m | -10 / - | UA2FFD | - / -16 | 8 | Partial capture |
| 10-18 08:06 | 40m | -8 / +5 | PA7ZZ | -15 / -5 | 4 | ✓ Full exchange observed |
| 10-17 21:02 | 80m | +8 / +1 | R3TKN | +6 / -13 | 4 | ✓ Full exchange observed |
| 10-17 17:52 | 40m | -6 / - | RA8CO | - / -4 | 2 | ✓ Closing fragment |
| 10-17 17:48 | 40m | 0 / -20 | UA9SAV | -17 / -20 | 2 | Partial capture |
| 10-17 17:28 | 40m | -6 / - | RA4ADF/P | - / -15 | 3 | ✓ Closing fragment |
| 10-17 17:22 | 40m | -5 / - | R1BMZ | - / -22 | 3 | ✓ Closing fragment |
| 10-17 17:13 | 40m | -6 / - | RW4HRE | - / -17 | 2 | Partial capture |
| 10-17 17:12 | 40m | -4 / - | UA9SHH | -7 / - | 2 | ✓ Closing observed |
| 10-17 16:52 | 40m | -6 / - | UA9FLJ | - / -15 | 4 | ✓ Closing fragment |
| 10-17 16:51 | 40m | -6 / -14 | G0RVY | 0 / -3 | 4 | ✓ Full exchange observed |
| 10-17 16:50 | 40m | -6 / - | RA9FDR | - / -19 | 2 | ✓ Closing fragment |
| 10-17 16:49 | 40m | -6 / - | RM7M | -14 / -12 | 3 | ✓ Closing observed |
| 10-17 16:47 | 40m | -5 / - | UA4CKN | - / -9 | 2 | ✓ Closing fragment |
| 10-16 20:36 | 80m | +4 / - | R7KJM | - / -11 | 2 | Partial capture |
| 10-16 20:34 | 80m | 0 / - | R7KKO | - / -20 | 3 | ✓ Closing fragment |
| 10-16 20:28 | 80m | -2 / - | R2DX/3 | - / -10 | 2 | Partial capture |
| 10-16 20:28 | 80m | - / -17 | R7KKO | -18 / - | 2 | Partial capture |
| 10-16 20:25 | 80m | +5 / -18 | RA4NCC | -15 / -17 | 5 | ✓ Full exchange observed |
| 10-16 20:24 | 80m | +6 / +8 | DJ3HW | +11 / -1 | 4 | ✓ Full exchange observed |
| 10-16 20:23 | 80m | +4 / - | R2EA/P | - / -12 | 3 | ✓ Closing fragment |
| 10-16 20:18 | 80m | 0 / -6 | OK1FKY | -3 / -9 | 8 | ✓ Full exchange observed |
| 10-16 20:17 | 80m | +3 / - | OE5ABL | -3 / -17 | 3 | ✓ Closing observed |
| 10-16 20:15 | 80m | +4 / -3 | R1CBW | -7 / -6 | 4 | ✓ Full exchange observed |
| 10-16 20:14 | 80m | +2 / +6 | RL2F | +1 / -12 | 4 | ✓ Full exchange observed |
| 10-16 17:22 | 40m | -8 / - | UB3BHW | - / -17 | 3 | ✓ Closing fragment |
| 10-16 17:14 | 40m | -8 / +8 | F4HSB | -11 / -12 | 4 | Partial capture |
| 10-16 17:14 | 40m | -2 / - | HA0GZ | -24 / +1 | 3 | ✓ Closing observed |
| 10-16 17:07 | 40m | -2 / - | SQ8JLF | - / -15 | 2 | ✓ Closing fragment |
| 10-16 16:55 | 40m | -6 / +10 | LY2BSW | -4 / -11 | 3 | Partial capture |
| 10-16 16:42 | 40m | -3 / - | UA4WCS | - / -13 | 3 | ✓ Closing fragment |
| 10-16 16:41 | 40m | -2 / - | SM7WNM | - / -3 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 052915 -7 1059 R2FDU IZ2QPP R+05 (x2) 053245 -16 1316 R2FDU EA8AE R-17 053415 -14 1519 R2FDU CT7AUT 73 054130 -3 949 RX3ASQ R2FDU +00 054545 -10 949 R2FDU RV3F R+02 054600 -1 948 RV3F R2FDU RR73 054615 -12 948 R2FDU RV3F 73 054615 -12 2200 R2FDU ON8WR JO11 054630 -4 949 ON8WR R2FDU -06 054645 -9 2200 R2FDU ON8WR R+26 054700 -4 948 ON8WR R2FDU RR73 054715 -7 2200 R2FDU ON8WR 73 054730 -2 948 XE1PM R2FDU -20 054800 -3 948 HA5WA R2FDU +00
UTC dB Audio Message 110200 -21 1850 R2FDU RK4F R-03 103430 -16 2046 R2FDU CT5JLR IM59 (x3) 104600 -4 2266 R2FDU EA7Z IM67 (x2) 104700 -5 1018 R2FDU DL6EI JN57
UTC dB Audio Message 202745 +8 584 R2FDU DR800WE R+09 202815 -18 2589 R2FDU R7KKO -17 (x2) 202845 -3 1907 <R2DX/3> R2FDU -10 (x2) 203445 -4 1907 R7KKO R2FDU R-20 (x3) 203645 +5 1907 R7KJM R2FDU -11 (x2) 210045 -12 2029 R2FDU F5MXH 73 210230 +11 2028 R3TKN R2FDU -13 210245 +9 2483 R2FDU R3TKN R+01 210300 +6 2028 R3TKN R2FDU RR73 210315 +2 2483 R2FDU R3TKN 73
UTC dB Audio Message 183430 -5 2790 R2FDU LA4GHA JO59 (x2) 201615 +8 2813 R2FDU ER5DX KN46
UTC dB Audio Message 120615 -17 1966 R2FDU R7ZY 73 120815 -10 1259 R2FDU RG6S RR73 (x2) 191400 -14 2619 R2FDU IU0VOG JN61 (x2) 134015 -9 2097 R2FDU R8HC R-09 (x2) 134330 +2 1769 R2FDU F4VTR JN25 (x6) 135930 +10 1527 R2FDU RZ9A R-04 (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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