R4DI — 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 R4DI, decoded by SO8OO in southeastern Poland. 1,579 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 44 UTC dates in the available aggregate history. Observed between 2026-06-06 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 1,579 FT8 messages attributed to R4DI as the transmitting token by decoded message structure across 44 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (31%), followed by 40 m (25%) and 80 m (23%). Several six-hour UTC windows tied for the largest share (69%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.
Overview
Bands
Last attributed message: 2026-10-23 04:54 UTC
Observed FT8 message patterns
- Attributed sample
- 1,579 messages
- Active dates
- 44 UTC dates
- Estimated median S/N
- -7 dB
- Estimated 10th-90th percentile
- -16 to +4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 185, moderate (-15 to -9 dB) 492, strong (≥ -8 dB) 902.
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 R4DI 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 R4DI
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
- LO42 · 490 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,905 km (approx.)
- Last such locator decoded
- 2026-10-23 04:32 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 | R4DI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 04:54 | 40m | -3 / - | R3GO | -13 / - | 2 | ✓ Closing observed |
| 10-23 04:50 | 40m | -6 / -2 | R6ZS | -9 / - | 3 | ✓ Closing observed |
| 10-23 04:46 | 40m | -10 / - | UN2NC | - / -15 | 2 | Partial capture |
| 10-23 04:44 | 40m | -7 / - | V47NT | - / -15 | 3 | Partial capture |
| 10-23 04:40 | 40m | -10 / - | C5R | - / -15 | 7 | Partial capture |
| 10-23 04:37 | 40m | -11 / - | V47NT | - / -2 | 5 | Partial capture |
| 10-23 04:31 | 40m | -5 / - | R9WGG | - / - | 2 | ✓ Closing fragment |
| 10-23 04:26 | 40m | -6 / - | LX/DF2SD | - / -7 | 6 | Partial capture |
| 10-23 04:25 | 40m | 0 / - | R5VCW | - / -7 | 2 | ✓ Closing fragment |
| 10-23 04:22 | 40m | +2 / +3 | SV8DCY | -18 / +9 | 4 | ✓ Full exchange observed |
| 10-23 04:19 | 80m | - / - | DL9KM | -13 / - | 7 | Partial capture |
| 10-23 04:19 | 80m | -16 / - | TA1MB | - / - | 2 | ✓ Closing fragment |
| 10-23 04:12 | 80m | -14 / - | <...> | - / -7 | 2 | Partial capture |
| 10-23 04:11 | 80m | -17 / -11 | DA125RH | +4 / - | 3 | Partial capture |
| 10-23 04:08 | 80m | - / -6 | 9A2G | +16 / - | 2 | ✓ Closing fragment |
| 10-23 04:08 | 80m | - / -7 | YT1MP | -4 / - | 3 | ✓ Closing fragment |
| 10-23 04:04 | 80m | -11 / - | OH6IH | - / -17 | 2 | Partial capture |
| 10-22 19:45 | 160m | -8 / - | JR4KCC | - / -23 | 2 | ✓ Closing fragment |
| 10-22 19:39 | 160m | -10 / - | JH7BDS | - / -21 | 2 | ✓ Closing fragment |
| 10-22 19:38 | 160m | -8 / - | JA1JAT | - / -21 | 2 | ✓ Closing fragment |
| 10-22 19:35 | 160m | - / - | E70SZ | -17 / - | 3 | Partial capture |
| 10-22 19:30 | 160m | -12 / - | JA5CBO | - / -23 | 2 | Partial capture |
| 10-22 19:26 | 160m | -14 / - | JH4SUY | - / -22 | 2 | Partial capture |
| 10-22 19:22 | 160m | -10 / - | JH4SUY | - / -22 | 2 | Partial capture |
| 10-22 19:20 | 160m | - / -12 | YO4YPC | -4 / - | 2 | ✓ Closing fragment |
| 10-22 19:15 | 160m | -18 / - | JM1JZN | - / -24 | 2 | ✓ Closing fragment |
| 10-22 19:10 | 160m | -14 / - | JH0BQX | - / -24 | 2 | Partial capture |
| 10-22 19:06 | 160m | - / - | R1AV | -22 / - | 2 | Partial capture |
| 10-22 19:05 | 160m | -15 / - | JA8IIK/P | - / -19 | 4 | ✓ Closing fragment |
| 10-22 18:59 | 160m | -10 / +9 | RC9WC | -9 / - | 4 | ✓ Full exchange observed |
| 10-22 18:57 | 160m | -16 / - | R7CD | - / 0 | 2 | ✓ Closing fragment |
| 10-22 18:55 | 160m | -13 / +7 | R7MR | +8 / - | 5 | ✓ Full exchange observed |
| 10-22 18:52 | 160m | - / -17 | IW4AOT | -1 / - | 3 | Partial capture |
| 10-22 18:49 | 160m | -6 / -6 | S59A | -1 / -12 | 4 | ✓ Full exchange observed |
| 10-22 18:43 | 160m | -11 / -12 | R6OD | -22 / - | 3 | ✓ Closing observed |
| 10-22 18:41 | 160m | -9 / - | R6DAZ | - / +6 | 2 | Partial capture |
| 10-22 18:39 | 160m | -16 / -3 | R2EA/P | -24 / -6 | 3 | ✓ Full exchange observed |
| 10-22 18:35 | 160m | -20 / -20 | DL7ET | -19 / -10 | 5 | ✓ Full exchange observed |
| 10-22 18:34 | 160m | -18 / - | BD8CS | - / -9 | 2 | Partial capture |
| 10-22 18:31 | 160m | -20 / - | RW6AU | - / -12 | 4 | ✓ Closing fragment |
| 10-22 18:31 | 160m | -19 / - | UN0GY | - / -17 | 2 | Partial capture |
| 10-22 18:28 | 160m | -11 / -18 | EA5J | -16 / +8 | 7 | ✓ Full exchange observed |
| 10-22 18:23 | 160m | -24 / - | R2EA/P | - / -9 | 2 | Partial capture |
| 10-22 18:22 | 160m | - / -8 | SV1BLD | -1 / - | 2 | Partial capture |
| 10-22 18:18 | 160m | -14 / - | R4FDK | - / - | 2 | Partial capture |
| 10-22 18:12 | 160m | -22 / - | R6DAZ | - / -5 | 2 | Partial capture |
| 10-22 18:10 | 160m | -20 / -18 | RO3ZW | -6 / +4 | 4 | ✓ Full exchange observed |
| 10-22 18:08 | 160m | -20 / -6 | SV8CS | -6 / -8 | 5 | ✓ Full exchange observed |
| 10-22 18:05 | 160m | -17 / - | UA9JCH | - / -8 | 2 | Partial capture |
| 10-22 17:55 | 160m | -16 / -3 | OH2CLX | +4 / - | 3 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 044145 -9 2263 C5R R4DI -15 (x4) 044445 -8 2263 V47NT R4DI -15 (x3) 044615 -12 2263 UN2NC R4DI R-15 (x2) 045045 -9 658 R4DI R6ZS R-02 045100 -6 2262 R6ZS R4DI RR73 045115 -9 658 R4DI R6ZS 73 045215 -4 2262 P4/WE9V R4DI -04 045415 -13 2000 R4DI R3GO R+12 045430 -3 2262 R3GO R4DI RR73
UTC dB Audio Message 040915 -2 2053 R4DI YT1MP 73 041145 -17 1796 <DA125RH> R4DI +19 041230 -15 2321 <...> R4DI +19 041245 +0 1872 R4DI DA125RH R-11 041300 -12 2321 <...> R4DI -07 041315 +9 1871 R4DI DA125RH R-12 041900 -16 2321 TA1MB R4DI 73 041915 -14 1247 R4DI DL9KM JN68 041930 -16 2321 TA1MB R4DI 73 041945 -17 1247 R4DI DL9KM JN68 (x6)
UTC dB Audio Message 193745 -14 1794 CQ JA R4DI LO42 193815 -10 1794 JA1JAT R4DI -21 (x2) 193915 -11 1794 JH7BDS R4DI -21 (x2) 194015 -9 1794 CQ JA R4DI LO42 (x2) 194130 -22 905 R4DI R4WR LO66 194200 -16 1794 CQ JA R4DI LO42 (x4) 194500 -10 1794 JR4KCC R4DI -23 (x2) 194600 -14 1794 CQ JA R4DI LO42
UTC dB Audio Message 084330 -7 746 R4DI R6DWD -13 (x2) 132330 -3 2328 R4DI EA7Z IM67 (x2)
UTC dB Audio Message 182415 -4 1080 II7MGBT R4DI -17 182915 -17 1951 G3ZRN R4DI RR73 182930 -4 2194 R4DI G3ZRN R-07 182945 -2 1951 G3ZRN R4DI RR73 183000 -16 2194 R4DI G3ZRN 73 183115 -4 1951 PD2XX R4DI -09 183130 +5 876 R4DI PD2XX R-19 183145 +2 1951 PD2XX R4DI RR73 183200 +12 876 R4DI PD2XX R-19 183215 +1 1951 PD2XX R4DI RR73 183230 +10 876 R4DI PD2XX R-19 183245 +0 1951 PD2XX R4DI RR73 183300 +13 876 R4DI PD2XX R-19 183315 +1 1951 CQ R4DI LO42 183330 +9 876 R4DI PD2XX R-19
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
1 CW reception events in the last 30 days.
- 40m: 1 events; last heard 2026-10-20 17:04 UTC
Latest CW receptions
| UTC | Band | kHz | S/N · 500 Hz | WPM | Listen |
|---|---|---|---|---|---|
| 2026-10-20 17:04:45 | 40m | 7016.824 | 8.4 dB | 28.6 | WebSDR ↗ |
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