RD4CAF — 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 RD4CAF, decoded by SO8OO in southeastern Poland. 465 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 20 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-14.
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 465 FT8 messages attributed to RD4CAF as the transmitting token by decoded message structure across 20 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (95%), followed by 40 m (5%). Most decodes (86%) fell within the six-hour window 20:00-02:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.
Overview
Bands
Last attributed message: 2026-10-14 00:40 UTC
Observed FT8 message patterns
- Attributed sample
- 465 messages
- Active dates
- 20 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -16 to -2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 62, moderate (-15 to -9 dB) 218, strong (≥ -8 dB) 185.
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 RD4CAF 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 RD4CAF
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
- LO21 · 12 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,636 km (approx.)
- Last such locator decoded
- 2026-10-08 01:34 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 | RD4CAF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-14 00:38 | 80m | -4 / - | 9A4AA | - / -18 | 5 | ✓ Closing fragment |
| 10-14 00:35 | 80m | -4 / -14 | UA9JGS | -10 / -16 | 4 | ✓ Full exchange observed |
| 10-14 00:33 | 80m | -2 / -12 | IZ8XXE | +10 / -18 | 4 | ✓ Full exchange observed |
| 10-14 00:31 | 80m | -9 / -8 | OK1HEH | +10 / -15 | 7 | ✓ Full exchange observed |
| 10-14 00:29 | 80m | -5 / -3 | R9LE | -19 / - | 2 | ✓ Closing observed |
| 10-14 00:27 | 80m | -11 / -2 | R4HHN | +3 / - | 3 | ✓ Full exchange observed |
| 10-14 00:20 | 80m | -10 / -12 | UX7QV | +2 / -9 | 4 | ✓ Full exchange observed |
| 10-14 00:19 | 80m | -4 / -10 | R9OAE | -8 / -12 | 4 | ✓ Full exchange observed |
| 10-14 00:17 | 80m | -9 / - | RX3ASQ | - / +5 | 3 | Partial capture |
| 10-14 00:10 | 80m | 0 / -8 | UC1C | -5 / -15 | 6 | ✓ Full exchange observed |
| 10-14 00:10 | 80m | - / - | DO8JB | -1 / - | 3 | Partial capture |
| 10-14 00:08 | 80m | - / 0 | UA3VVA | +2 / - | 2 | ✓ Closing fragment |
| 10-13 23:51 | 80m | -2 / -11 | OK2LC | +20 / -14 | 4 | ✓ Full exchange observed |
| 10-13 23:51 | 80m | - / 0 | SP5MXZ | +12 / - | 2 | ✓ Closing fragment |
| 10-13 23:46 | 80m | -10 / - | R4SCQ | - / -11 | 2 | ✓ Closing fragment |
| 10-13 23:45 | 80m | -9 / -9 | R6ZB | -6 / - | 3 | ✓ Closing observed |
| 10-13 23:44 | 80m | -3 / +1 | UA3VVA | +2 / - | 2 | ✓ Closing observed |
| 10-13 23:41 | 80m | -6 / +7 | RD3K | +14 / +6 | 4 | ✓ Full exchange observed |
| 10-13 23:40 | 80m | -10 / - | R4HHN | -1 / +1 | 3 | ✓ Closing observed |
| 10-13 23:34 | 80m | -11 / - | RX3ASQ | - / +4 | 3 | Partial capture |
| 10-13 18:00 | 80m | -7 / +7 | R2APC | -6 / -4 | 6 | ✓ Full exchange observed |
| 10-13 17:56 | 80m | -15 / -7 | RA6HA | -7 / -19 | 2 | Partial capture |
| 10-13 17:52 | 80m | -14 / -1 | RA3ZOM | +2 / -4 | 4 | ✓ Full exchange observed |
| 10-13 17:47 | 80m | -15 / - | R4AFR | - / -18 | 2 | ✓ Closing fragment |
| 10-13 17:47 | 80m | - / -5 | UA3NFG | -10 / - | 2 | Partial capture |
| 10-13 01:08 | 80m | 0 / - | DK1MCS | - / -15 | 2 | Partial capture |
| 10-13 01:04 | 80m | -10 / -14 | GM6URC | -2 / -14 | 2 | Partial capture |
| 10-13 00:59 | 80m | -2 / - | DO9BAU | - / -16 | 2 | Partial capture |
| 10-13 00:50 | 80m | -1 / +2 | 5B4AMX | +3 / -8 | 4 | ✓ Full exchange observed |
| 10-13 00:48 | 80m | -14 / - | LY5A | - / +8 | 2 | Partial capture |
| 10-13 00:47 | 80m | -6 / - | EC3A | -4 / -16 | 3 | ✓ Closing observed |
| 10-13 00:42 | 80m | -7 / -16 | EC5M | +6 / -17 | 13 | ✓ Full exchange observed |
| 10-13 00:38 | 80m | -14 / - | HG0NPJ | - / -11 | 3 | Partial capture |
| 10-13 00:37 | 80m | -18 / -11 | 9A5E | +16 / -5 | 4 | ✓ Full exchange observed |
| 10-13 00:35 | 80m | -8 / -8 | SV1EAG | -14 / -17 | 9 | Partial capture |
| 10-13 00:34 | 80m | -13 / +6 | UA3IDQ | -4 / -3 | 4 | ✓ Full exchange observed |
| 10-13 00:23 | 40m | - / -6 | A61DD | -13 / - | 2 | ✓ Closing fragment |
| 10-13 00:21 | 40m | - / -18 | RM8L | -6 / - | 2 | ✓ Closing fragment |
| 10-12 20:31 | 80m | - / -13 | OZ1A | -2 / - | 2 | Partial capture |
| 10-12 20:28 | 80m | - / +6 | R5BS | +4 / - | 2 | ✓ Closing fragment |
| 10-12 20:19 | 80m | - / - | R3EDI | +2 / - | 2 | ✓ Closing fragment |
| 10-12 20:13 | 80m | - / 0 | UA3IDQ | -4 / - | 2 | ✓ Closing fragment |
| 10-12 20:02 | 80m | - / -9 | RZ3DAB | 0 / - | 2 | ✓ Closing fragment |
| 10-12 02:42 | 80m | -8 / -6 | RN4SN | -4 / 0 | 4 | ✓ Full exchange observed |
| 10-12 02:36 | 80m | -14 / -19 | UA9FGJ | -11 / -7 | 4 | ✓ Full exchange observed |
| 10-12 02:30 | 80m | -10 / - | R9AL | - / -8 | 5 | Partial capture |
| 10-12 02:29 | 80m | -11 / +9 | RA4Y | -2 / -4 | 4 | ✓ Full exchange observed |
| 10-12 02:27 | 80m | -15 / - | RA6LTD | -13 / -1 | 3 | ✓ Closing observed |
| 10-12 02:24 | 80m | -9 / -1 | RA6WF | -11 / - | 3 | ✓ Closing observed |
| 10-11 23:37 | 80m | -12 / -5 | IZ8XXE | +5 / -19 | 6 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 003230 -7 1835 OK1HEH RD4CAF RR73 003245 +6 1831 RD4CAF OK1HEH 73 003330 +0 2540 IZ8XXE RD4CAF -18 003345 +12 2534 RD4CAF IZ8XXE R-12 003400 -3 2540 IZ8XXE RD4CAF RR73 003415 +8 2534 RD4CAF IZ8XXE 73 003500 -6 645 UA9JGS RD4CAF -16 003515 -8 644 RD4CAF UA9JGS R-14 003530 -3 645 UA9JGS RD4CAF RR73 003545 -13 644 RD4CAF UA9JGS 73 003830 -9 591 9A4AA RD4CAF -18 (x5)
UTC dB Audio Message 205845 +5 941 RD4CAF PI4DX R-09 205900 -9 1354 RD4CAF ON2BCB R-14 205915 +17 941 RD4CAF PI4DX R-09 205930 -10 1354 RD4CAF ON2BCB R-14 205945 +17 941 RD4CAF PI4DX 73 210000 -14 1353 RD4CAF ON2BCB R-14 (x4) 081400 -7 1877 RD4CAF EW6DM R-20 (x2) 002100 -3 2111 RD4CAF RM8L R-18 (x2) 002345 -13 972 RD4CAF A61DD R-06 (x2)
UTC dB Audio Message 002245 -3 1598 RD4CAF UA3RBM -14 002245 -10 1704 RD4CAF RA3ZDU -22 002315 -6 1597 RD4CAF UA3RBM -14 002315 -9 1705 RD4CAF RA3ZDU RR73 002545 -4 1603 RD4CAF UA3RBM RR73 003900 +4 2437 RD4CAF R9CS/P R+07 003930 -6 1746 RD4CAF UA3RBM -18 003930 +4 2437 RD4CAF R9CS/P 73 004000 -8 1747 RD4CAF UA3RBM -18 005230 -14 1642 RD4CAF R2ATY R-11 (x2) 005400 -4 1150 RD4CAF RW9WJ LO84 (x3) 165630 -16 503 RD4CAF RU4I -10
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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