R4FES — 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 R4FES, decoded by SO8OO in southeastern Poland. 693 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 50 UTC dates in the available aggregate history. Observed between 2026-07-07 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 693 FT8 messages attributed to R4FES as the transmitting token by decoded message structure across 50 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (44%), followed by 80 m (29%) and 40 m (28%). Most decodes (74%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.
Overview
Bands
Last attributed message: 2026-10-21 20:44 UTC
Observed FT8 message patterns
- Attributed sample
- 693 messages
- Active dates
- 50 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -21 to -5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 243, moderate (-15 to -9 dB) 303, strong (≥ -8 dB) 147.
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 R4FES 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 R4FES
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
- LO23 · 435 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,639 km (approx.)
- Last such locator decoded
- 2026-10-21 20:42 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 | R4FES S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-21 20:45 | 80m | - / -9 | R4FJ | -8 / - | 3 | ✓ Closing fragment |
| 10-21 20:44 | 80m | - / - | 9A4ZM | +10 / - | 2 | Partial capture |
| 10-21 20:43 | 80m | -5 / - | RA3TD | +2 / - | 3 | ✓ Closing observed |
| 10-21 20:42 | 80m | -3 / - | JE6KYA | - / -13 | 3 | Partial capture |
| 10-21 20:40 | 80m | -5 / -14 | DO6LE | +3 / -7 | 5 | ✓ Full exchange observed |
| 10-21 20:35 | 80m | -7 / -13 | DO6AZ | +2 / -16 | 13 | ✓ Full exchange observed |
| 10-21 20:05 | 160m | - / -14 | UA4SJB | -14 / - | 2 | Partial capture |
| 10-21 20:01 | 160m | - / -8 | RU3ACA | -11 / - | 2 | ✓ Closing fragment |
| 10-21 19:52 | 160m | - / -16 | UA4CKN | -16 / - | 3 | ✓ Closing fragment |
| 10-21 19:52 | 160m | - / -20 | RA3WY | -7 / - | 3 | ✓ Closing fragment |
| 10-21 19:49 | 160m | - / -16 | RD3MF | -4 / - | 2 | Partial capture |
| 10-21 19:40 | 160m | - / -13 | RM5F | -9 / - | 4 | ✓ Closing fragment |
| 10-21 19:40 | 160m | - / - | UA4FKT | -9 / - | 3 | ✓ Closing fragment |
| 10-21 19:39 | 160m | - / -15 | R6HV | -11 / - | 2 | ✓ Closing fragment |
| 10-20 18:27 | 40m | -15 / -12 | DL7VGU | +6 / - | 3 | ✓ Closing observed |
| 10-18 17:35 | 80m | - / -14 | R2DYC | +2 / - | 2 | ✓ Closing fragment |
| 10-18 17:33 | 80m | -21 / -15 | OH7HRH | -19 / -22 | 7 | ✓ Full exchange observed |
| 10-18 17:31 | 80m | -16 / - | UA4FEN | - / - | 2 | ✓ Closing fragment |
| 10-18 17:31 | 80m | - / -20 | DK7ZT | -1 / - | 5 | Partial capture |
| 10-18 17:30 | 80m | -22 / -16 | R7DX | +2 / - | 8 | ✓ Full exchange observed |
| 10-18 17:29 | 80m | -14 / -5 | RN7T | -10 / +5 | 4 | ✓ Full exchange observed |
| 10-18 17:28 | 80m | -20 / - | UB6OAK | - / -11 | 2 | Partial capture |
| 10-18 17:25 | 80m | - / - | UB6OAK | -22 / - | 3 | Partial capture |
| 10-18 17:22 | 80m | - / -17 | R8PG | -18 / - | 2 | Partial capture |
| 10-18 17:19 | 80m | -20 / -17 | R8PG | -22 / -6 | 3 | Partial capture |
| 10-18 17:19 | 80m | -21 / 0 | R3SN | -22 / +1 | 6 | ✓ Full exchange observed |
| 10-18 17:17 | 80m | - / -5 | R2EC | -1 / - | 7 | ✓ Closing fragment |
| 10-18 17:17 | 80m | -20 / - | RK6MC | -12 / - | 3 | ✓ Closing observed |
| 10-18 17:15 | 80m | -18 / - | UA4SJB | - / - | 2 | ✓ Closing fragment |
| 10-18 17:14 | 80m | -21 / +3 | R3VE | -4 / - | 5 | ✓ Closing observed |
| 10-18 17:12 | 80m | -16 / - | R3IAD | - / - | 5 | Partial capture |
| 10-16 19:43 | 40m | -20 / - | RM0F | - / - | 2 | Partial capture |
| 10-16 19:40 | 40m | -14 / - | PC1K | - / -19 | 4 | ✓ Closing fragment |
| 10-16 19:37 | 40m | -14 / - | 7P8GE | - / - | 4 | Partial capture |
| 10-16 19:34 | 40m | -13 / - | BG0KD | - / - | 3 | Partial capture |
| 10-16 19:22 | 80m | - / - | R2ASY | -3 / - | 3 | Partial capture |
| 10-16 19:21 | 80m | - / -17 | DK7ZT | +10 / - | 5 | Partial capture |
| 10-16 19:20 | 80m | -13 / - | R4HHN | - / - | 3 | ✓ Closing fragment |
| 10-16 15:54 | 80m | - / -5 | RA4HG | -18 / - | 4 | Partial capture |
| 10-16 15:54 | 80m | -8 / -6 | UN7CL | -18 / +3 | 4 | ✓ Full exchange observed |
| 10-16 15:53 | 80m | - / - | RA3VX | -2 / - | 5 | Partial capture |
| 10-16 15:53 | 80m | -10 / 0 | UB4FGK | -6 / - | 5 | ✓ Full exchange observed |
| 10-16 15:52 | 80m | -13 / - | R2AL | +10 / - | 4 | ✓ Closing observed |
| 10-16 15:51 | 80m | -12 / +4 | OH5KNL | +12 / +6 | 4 | ✓ Full exchange observed |
| 10-16 15:49 | 80m | -12 / - | R4HGP | - / - | 2 | Partial capture |
| 10-16 15:47 | 40m | -11 / - | HS0ZGV | - / - | 2 | Partial capture |
| 10-16 15:46 | 40m | - / -1 | EU6MM | +6 / - | 2 | ✓ Closing fragment |
| 10-16 15:37 | 40m | -12 / - | SP5UKR | - / - | 2 | Partial capture |
| 10-16 15:34 | 40m | -12 / - | HS0ZGV | - / - | 4 | Partial capture |
| 10-15 19:16 | 80m | -24 / -12 | DM5KM | +12 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 204030 +4 1652 R4FES DO6LE -14 204045 -6 1208 DO6LE R4FES R-07 204100 +2 1652 R4FES DO6LE RR73 204115 -5 1208 DO6LE R4FES 73 204215 +0 1208 JE6KYA R4FES LO23 (x3) 204345 -4 1208 RA3TD R4FES RR73 204400 +2 1209 R4FES RA3TD 73 204415 -6 1209 RA3TD R4FES RR73 204430 +10 1205 R4FES 9A4ZM JN86 204500 -12 1444 R4FES R4FJ LO23 204500 +11 1205 R4FES 9A4ZM JN86 204530 -7 1445 R4FES R4FJ R-09 (x2)
UTC dB Audio Message 194200 -9 783 R4FES RM5F R-13 (x2) 194900 -6 1165 R4FES RD3MF -16 (x2) 195200 -4 1801 R4FES RA3WY KO81 195230 -15 1234 R4FES UA4CKN -16 195230 -9 1801 R4FES RA3WY R-20 (x2) 195330 -14 1232 R4FES UA4CKN RR73 (x2) 195530 -23 1878 R4FES RA4P LO64 200145 -11 1664 R4FES RU3ACA -08 (x2) 200545 -16 802 R4FES UA4SJB -14 (x2)
UTC dB Audio Message 193915 -17 915 7P8GE R4FES LO23 194015 -20 915 PC1K R4FES LO23 (x4) 194315 -22 915 RM0F R4FES LO23 (x2) 194445 -13 915 7P8GE R4FES LO23 (x2) 195345 -5 507 SU8JOTA R4FES LO23 195445 -10 507 9M2SWI R4FES LO23 182730 -15 2141 DL7VGU R4FES LO23 182745 +10 2577 R4FES DL7VGU -12 (x2) 184100 -14 2483 R4FES PD5BT -09
UTC dB Audio Message 163745 -11 768 CN8NS R4FES LO23 164015 -13 768 KL1R R4FES LO23 (x3) 195445 -11 1473 R4FES IU1DXU -22 (x4) 173430 -4 2210 R4FES PD5MVH -10 (x2) 173515 -8 1922 PD5MVH R4FES 73 183445 -7 906 7X2KF R4FES LO23 (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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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