RC3D — 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 RC3D, decoded by SO8OO in southeastern Poland. 1,852 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 74 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-10-15.
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 1,852 FT8 messages attributed to RC3D as the transmitting token by decoded message structure across 74 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (49%), followed by 80 m (33%) and 20 m (16%). Most decodes (77%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (85%); the estimated median was 0 dB.
Overview
Bands
Last attributed message: 2026-10-15 14:52 UTC
Observed FT8 message patterns
- Attributed sample
- 1,852 messages
- Active dates
- 74 UTC dates
- Estimated median S/N
- 0 dB
- Estimated 10th-90th percentile
- -11 to +12 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 59, moderate (-15 to -9 dB) 227, strong (≥ -8 dB) 1,566.
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 RC3D 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 RC3D
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
- KO75 · 105 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,081 km (approx.)
- Last such locator decoded
- 2026-10-09 15:29 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 | RC3D S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-15 14:52 | 160m | -7 / - | R9CS/P | - / -5 | 2 | ✓ Closing fragment |
| 10-15 04:17 | 40m | +2 / - | WA2HIP | - / -15 | 7 | Partial capture |
| 10-15 04:15 | 40m | +2 / +1 | SV1ENG | -10 / -9 | 7 | ✓ Full exchange observed |
| 10-15 04:13 | 40m | -4 / - | SV9AUP | - / -15 | 2 | Partial capture |
| 10-15 04:12 | 40m | -4 / - | Z33ST | - / -16 | 2 | Partial capture |
| 10-15 04:09 | 40m | -2 / - | LZ1SJ | - / - | 3 | ✓ Closing fragment |
| 10-15 03:55 | 80m | +7 / -5 | SV1ENG | -7 / -5 | 6 | ✓ Full exchange observed |
| 10-15 03:55 | 80m | +9 / - | RA7E/P | - / - | 2 | ✓ Closing fragment |
| 10-13 18:46 | 80m | -1 / -4 | RX7KIR | -9 / -9 | 6 | ✓ Full exchange observed |
| 10-13 18:21 | 40m | -3 / - | TA2EE | - / -6 | 2 | ✓ Closing fragment |
| 10-13 18:19 | 40m | -4 / - | BG4OOO | - / -17 | 2 | ✓ Closing fragment |
| 10-13 18:17 | 40m | -7 / - | R6DZE | - / -10 | 3 | ✓ Closing fragment |
| 10-13 18:14 | 40m | -8 / - | R1BRY | -17 / -7 | 5 | ✓ Closing observed |
| 10-13 17:40 | 80m | -6 / +9 | UA3IBK | -6 / - | 3 | ✓ Closing observed |
| 10-13 17:36 | 80m | -4 / +4 | RW3VR | +2 / +5 | 6 | ✓ Full exchange observed |
| 10-13 17:34 | 80m | -9 / - | RV6AJJ | - / -16 | 4 | ✓ Closing fragment |
| 10-13 17:26 | 80m | -7 / - | RA4P/P | - / -1 | 5 | ✓ Closing fragment |
| 10-13 17:25 | 80m | -8 / - | R8QA | - / -1 | 2 | ✓ Closing fragment |
| 10-13 17:23 | 80m | -12 / - | UN0GY | - / -4 | 4 | ✓ Closing fragment |
| 10-13 17:20 | 40m | +2 / - | R4YF | - / -1 | 4 | Partial capture |
| 10-13 17:15 | 40m | -1 / - | BA5AW | - / -14 | 3 | ✓ Closing fragment |
| 10-13 17:13 | 40m | -1 / - | UB4CGB | - / - | 2 | ✓ Closing fragment |
| 10-13 16:54 | 40m | -4 / - | RA4CEH/P | - / -17 | 3 | ✓ Closing fragment |
| 10-13 16:44 | 40m | +2 / - | RA4CEH/P | - / -13 | 6 | Partial capture |
| 10-13 16:43 | 40m | +4 / - | JH1FVE | - / -13 | 2 | Partial capture |
| 10-13 16:38 | 40m | -3 / +4 | DF1SD | -1 / -6 | 7 | ✓ Full exchange observed |
| 10-13 16:36 | 40m | -4 / - | UA4HII | - / -14 | 5 | Partial capture |
| 10-13 16:32 | 40m | -1 / - | RM1B | - / -19 | 2 | Partial capture |
| 10-13 16:30 | 40m | +3 / - | JA3VXM | - / -9 | 3 | ✓ Closing fragment |
| 10-13 16:29 | 40m | +2 / - | R6FGF | -8 / - | 2 | ✓ Closing observed |
| 10-13 16:24 | 40m | +2 / - | UB1AYZ | - / -6 | 9 | Partial capture |
| 10-13 16:21 | 40m | -1 / - | UA9OHC | - / -6 | 3 | ✓ Closing fragment |
| 10-13 16:18 | 40m | - / -1 | M0GWC/A | -8 / - | 2 | Partial capture |
| 10-13 16:13 | 40m | -3 / - | R3XBB | - / -13 | 7 | Partial capture |
| 10-10 23:00 | 80m | +2 / - | RK6OZ | - / -4 | 6 | Partial capture |
| 10-10 22:48 | 80m | +6 / - | R8DX | - / -10 | 3 | ✓ Closing fragment |
| 10-09 17:52 | 40m | -10 / -2 | RA6FCU/P | -8 / +1 | 4 | ✓ Full exchange observed |
| 10-09 17:47 | 40m | -4 / - | RA3ZK | - / -10 | 5 | Partial capture |
| 10-09 17:45 | 40m | -5 / - | R1CBA | - / -6 | 4 | Partial capture |
| 10-09 17:27 | 40m | -10 / - | UA9ARM | - / -16 | 2 | Partial capture |
| 10-09 16:56 | 40m | -3 / - | R6AEB | -4 / -9 | 6 | ✓ Full exchange observed |
| 10-09 16:35 | 40m | -8 / - | UD1I | - / -12 | 2 | ✓ Closing fragment |
| 10-09 16:31 | 40m | -8 / - | UA9D | -18 / -2 | 2 | ✓ Closing observed |
| 10-09 16:28 | 40m | -4 / - | R4PHH | - / -10 | 6 | ✓ Closing fragment |
| 10-09 16:13 | 80m | +3 / - | LY8O | - / +1 | 3 | Partial capture |
| 10-09 16:11 | 80m | +2 / - | RW9QA | - / -4 | 2 | ✓ Closing fragment |
| 10-09 16:09 | 80m | - / -1 | UA3QNA | +14 / - | 4 | ✓ Closing fragment |
| 10-09 16:07 | 80m | -9 / -6 | R4HNW | -6 / +4 | 6 | ✓ Full exchange observed |
| 10-09 16:03 | 80m | -6 / - | R9AL | -24 / -3 | 7 | ✓ Closing observed |
| 10-09 15:56 | 80m | 0 / - | R9MBC | - / -8 | 10 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 181945 -13 1743 RI1FJZ RC3D KO75 (x3) 182100 -20 1105 RC3D RM5F KO85 181715 +5 2183 RQ7R RC3D KO75 200815 -14 664 RC3D UA1OJL -03 160745 -8 1837 RO2E/P RC3D KO75 (x7) 145200 -11 2596 R9CS/P RC3D R-05 (x2)
UTC dB Audio Message 041415 -4 2687 SV9AUP RC3D -15 041500 -8 1317 RC3D SV1ENG KM18 (x2) 041545 +0 2687 SV1ENG RC3D -09 041600 -12 1317 RC3D SV1ENG R+01 041615 +3 2687 SV1ENG RC3D RR73 041630 -14 1317 RC3D SV1ENG 73 041645 +2 2687 SV1ENG RC3D 73 041745 +1 2687 WA2HIP RC3D -15 (x7)
UTC dB Audio Message 184600 -1 2640 RX7KIR RC3D -09 (x2) 184645 -8 1943 RC3D RX7KIR R-04 184700 +1 2640 RX7KIR RC3D RR73 184715 -10 1943 RC3D RX7KIR 73 184730 +0 2640 RX7KIR RC3D 73 035430 +0 2640 F1TXI RC3D -12 035515 +8 2640 RA7E/P RC3D RR73 035530 -7 1279 RC3D SV1ENG KM18 035545 +10 2640 RA7E/P RC3D 73 035600 -8 1279 RC3D SV1ENG KM18 035615 +7 2640 SV1ENG RC3D -05 035630 -4 1279 RC3D SV1ENG R-05 035645 +7 2640 SV1ENG RC3D RR73 035700 -10 1278 RC3D SV1ENG 73
UTC dB Audio Message 122100 +1 1302 RC3D CR7BUJ R+00 (x2)
UTC dB Audio Message 151230 -24 1420 RC3D RU3QR -14 151230 -14 628 RC3D F5NNN IN94 151300 -24 1420 RC3D RU3QR -14 150745 -8 2716 C91RU RC3D -12 (x5) 151030 -7 2716 RC3D GJ0KYZ +05 (x2) 151115 -8 2671 GJ0KYZ RC3D 73 104800 -5 1461 RC3D RO6OP R+01 (x2) 070700 +11 2547 RC3D R3KAB R-12 (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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