RC4AC — 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 RC4AC, decoded by SO8OO in southeastern Poland. 62 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-11-02 and 2026-11-04.
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 62 FT8 messages attributed to RC4AC as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (60%), followed by 80 m (40%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-11-04 16:17 UTC
Observed FT8 message patterns
- Attributed sample
- 62 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -17 dB
- Estimated 10th-90th percentile
- -22 to -13 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 43, moderate (-15 to -9 dB) 19, strong (≥ -8 dB) 0.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with RC4AC 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 RC4AC
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
- LN28 · 17 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,686 km (approx.)
- Last such locator decoded
- 2026-11-04 16:09 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 | RC4AC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-04 16:19 | 80m | - / -12 | RW2Z | -24 / - | 2 | Partial capture |
| 11-04 16:16 | 80m | -19 / - | R2BBT | - / -16 | 4 | Partial capture |
| 11-04 15:29 | 40m | - / - | S53AK | +1 / - | 2 | Partial capture |
| 11-04 15:23 | 40m | - / -12 | HB9ELE | +9 / - | 7 | ✓ Closing fragment |
| 11-04 15:10 | 40m | -14 / -5 | RU6CH | -7 / -8 | 3 | ✓ Full exchange observed |
| 11-04 15:04 | 40m | -17 / - | UA3SCU | - / -1 | 3 | Partial capture |
| 11-04 14:57 | 40m | - / - | UA3SCU | -18 / - | 2 | Partial capture |
| 11-04 14:56 | 40m | - / - | R2ZCA | -6 / - | 2 | Partial capture |
| 11-04 14:56 | 40m | - / -10 | RV4LD | -2 / - | 5 | ✓ Closing fragment |
| 11-04 14:49 | 40m | - / +3 | UA4FEN | -6 / - | 2 | ✓ Closing fragment |
| 11-04 14:49 | 40m | -18 / -13 | 9A4ZM | -8 / - | 3 | ✓ Closing observed |
| 11-04 14:44 | 40m | -14 / - | 9A4ZM | -2 / -12 | 3 | Partial capture |
| 11-04 14:43 | 40m | -21 / - | UK8FCM | - / -6 | 2 | Partial capture |
| 11-04 14:42 | 40m | -19 / +2 | R3KLE | -11 / +2 | 5 | ✓ Full exchange observed |
| 11-04 14:40 | 40m | -14 / -20 | YE4FNN | -10 / -10 | 6 | Partial capture |
| 11-04 14:38 | 40m | -15 / - | R4CR | - / +1 | 2 | ✓ Closing fragment |
| 11-04 14:34 | 40m | -17 / - | UK8FCM | - / -8 | 2 | Partial capture |
| 11-04 14:33 | 40m | -15 / -6 | RC6OX | -18 / +5 | 8 | Partial capture |
| 11-04 14:23 | 40m | - / -1 | R6FMK | -15 / - | 3 | ✓ Closing fragment |
| 11-04 14:21 | 40m | -24 / - | UB3FBD | - / -10 | 2 | Partial capture |
| 11-04 14:20 | 40m | -16 / - | R6DJR | - / +3 | 2 | ✓ Closing fragment |
| 11-04 14:08 | 40m | -18 / - | RA4UIV | -18 / - | 2 | ✓ Closing observed |
| 11-04 14:06 | 40m | -17 / - | R2PT | - / +4 | 2 | ✓ Closing fragment |
| 11-04 14:03 | 40m | -17 / - | R0AX | - / -4 | 2 | ✓ Closing fragment |
| 11-04 14:00 | 40m | - / - | RK4F | -18 / - | 2 | Partial capture |
| 11-02 19:42 | 80m | - / - | SQ9LOJ | -7 / - | 3 | Partial capture |
| 11-02 19:41 | 80m | - / -10 | R9FE | -14 / - | 3 | ✓ Closing fragment |
| 11-02 19:25 | 80m | -16 / -6 | S59A | +6 / +1 | 8 | ✓ Full exchange observed |
| 11-02 19:19 | 80m | - / -6 | UB6OFG | -11 / - | 2 | Partial capture |
| 11-02 19:19 | 80m | - / -6 | YT7DX | +6 / - | 4 | Partial capture |
| 11-02 19:17 | 80m | - / -22 | IQ4JO | +9 / - | 2 | Partial capture |
| 11-02 19:15 | 80m | - / -8 | SV1EKI | -12 / - | 3 | ✓ Closing fragment |
| 11-02 19:02 | 80m | -17 / -11 | R5AV | -6 / +1 | 4 | ✓ Full exchange observed |
| 11-02 18:46 | 80m | - / - | R7KKO | -20 / - | 2 | ✓ Closing fragment |
| 11-02 18:45 | 80m | - / -19 | LY3BFH | -13 / - | 2 | Partial capture |
| 11-02 18:09 | 80m | - / - | SV1ENG | -6 / - | 2 | ✓ Closing fragment |
| 11-02 18:07 | 80m | - / -18 | R7KKO | -12 / - | 3 | Partial capture |
| 11-02 18:07 | 80m | - / -13 | RD3MF | -7 / - | 4 | ✓ Closing fragment |
| 11-02 18:06 | 80m | - / -8 | UA1AEL | -6 / - | 3 | ✓ Closing fragment |
| 11-02 18:03 | 80m | - / -9 | UA4FKT | +4 / - | 2 | ✓ Closing fragment |
| 11-02 17:55 | 80m | - / -18 | R7KKO | -11 / - | 4 | Partial capture |
| 11-02 17:55 | 80m | - / - | UC6D | +2 / - | 2 | ✓ Closing fragment |
| 11-02 17:54 | 80m | - / -19 | DK7ZT | +3 / - | 8 | ✓ Closing fragment |
| 11-02 17:48 | 80m | - / -18 | RM5F | -4 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 194245 -9 2323 RC4AC SQ9LOJ JO90 (x2) 194645 -16 1705 RC4AC RA3SO 73 160300 -23 1259 UA6EU RC4AC RR73 160630 -13 1258 R3MDJ RC4AC -13 160800 -10 1258 R2BRU RC4AC RR73 160900 -9 1259 CQ RC4AC LN28 161000 -14 1259 RA6Z RC4AC RR73 161200 -16 1258 UA4WCS RC4AC RR73 161600 -20 1258 R2BBT RC4AC R-16 (x4) 161945 -24 1134 RC4AC RW2Z KO81 (x2)
UTC dB Audio Message 151545 -1 1449 RC4AC DL7ACA JO40 151630 -18 1448 RX9CET RC4AC 73 152100 -21 1450 CQ RC4AC LN28 152330 -15 1450 RA6OD RC4AC -05 152345 +7 593 RC4AC HB9ELE JN47 (x7) 152945 -16 1132 RC4AC UB4CGR RR73 152945 -16 1838 RC4AC UA3RMH LO02 152945 +0 1728 RC4AC S53AK JN76 (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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