RA4CGX — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RA4CGX, decoded by SO8OO in southeastern Poland. 1,379 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 112 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-17.
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 1,379 FT8 messages attributed to RA4CGX as the transmitting token by decoded message structure across 112 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (41%), followed by 20 m (30%) and 80 m (27%). Several six-hour UTC windows tied for the largest share (60%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.
Overview
Bands
Last attributed message: 2026-10-17 04:45 UTC
Observed FT8 message patterns
- Attributed sample
- 1,379 messages
- Active dates
- 112 UTC dates
- Estimated median S/N
- -8 dB
- Estimated 10th-90th percentile
- -17.9 to +3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 215, moderate (-15 to -9 dB) 435, strong (≥ -8 dB) 729.
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 RA4CGX 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 RA4CGX
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 · 636 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,636 km (approx.)
- Last such locator decoded
- 2026-10-17 04:45 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 | RA4CGX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-17 04:45 | 40m | -8 / - | RV7KA | - / - | 2 | Partial capture |
| 10-16 17:54 | 40m | -4 / - | SU8JOTA | - / -15 | 3 | Partial capture |
| 10-16 17:51 | 40m | -17 / - | R5AV | - / -10 | 3 | ✓ Closing fragment |
| 10-16 16:18 | 40m | -8 / - | UA1AQC | - / -21 | 3 | ✓ Closing fragment |
| 10-16 16:16 | 40m | - / -5 | R2BJZ | -10 / - | 2 | ✓ Closing fragment |
| 10-15 17:18 | 80m | -5 / - | UN7LAN | - / +1 | 3 | ✓ Closing fragment |
| 10-15 17:16 | 80m | -6 / - | R2ZAA | -6 / 0 | 4 | ✓ Full exchange observed |
| 10-15 14:14 | 40m | -18 / - | RW9WU | - / -4 | 4 | ✓ Closing fragment |
| 10-15 14:10 | 40m | -12 / -2 | R80SAA | +4 / - | 4 | ✓ Full exchange observed |
| 10-14 17:06 | 40m | -6 / -9 | RA8AF | -8 / +6 | 3 | ✓ Full exchange observed |
| 10-14 16:34 | 80m | -18 / - | R1BLO/P | - / - | 2 | Partial capture |
| 10-14 16:03 | 40m | -9 / +1 | R7ZY | +1 / +7 | 7 | Partial capture |
| 10-14 16:00 | 40m | -6 / - | UB8JFD | - / -16 | 2 | ✓ Closing fragment |
| 10-14 14:32 | 40m | -16 / -13 | IZ3EAW | -10 / -17 | 6 | ✓ Full exchange observed |
| 10-14 14:31 | 40m | -16 / - | UB6OBM | - / -7 | 3 | ✓ Closing fragment |
| 10-14 14:26 | 40m | -12 / -8 | R8CKV | -5 / -4 | 4 | ✓ Full exchange observed |
| 10-14 04:37 | 40m | -4 / - | R6FML | - / +7 | 2 | Partial capture |
| 10-13 18:37 | 40m | -8 / -11 | IQ3TR | +8 / 0 | 4 | ✓ Full exchange observed |
| 10-13 17:46 | 80m | - / +2 | RW3VR | +2 / - | 2 | ✓ Closing fragment |
| 10-12 15:58 | 40m | -16 / -2 | R5BM/6 | -14 / -3 | 7 | Partial capture |
| 10-12 13:39 | 40m | -22 / - | RA3SO | -19 / - | 2 | ✓ Closing observed |
| 10-11 15:58 | 40m | -13 / -5 | RU3ACA | -6 / - | 3 | ✓ Closing observed |
| 10-11 15:48 | 40m | -12 / - | UA4CSK | - / +5 | 2 | ✓ Closing fragment |
| 10-11 15:45 | 40m | - / - | S55A | -11 / - | 3 | Partial capture |
| 10-11 15:43 | 40m | -14 / - | LZ/TF1OL | - / +7 | 2 | Partial capture |
| 10-10 14:26 | 40m | -16 / - | UB3BAE/P | - / - | 2 | Partial capture |
| 10-10 14:23 | 40m | -19 / - | UB3BDB | - / -16 | 2 | ✓ Closing fragment |
| 10-09 18:00 | 80m | -4 / - | RN3DDW/P | -15 / -13 | 4 | ✓ Closing observed |
| 10-09 17:57 | 80m | 0 / +9 | RT3K/P | -8 / +1 | 3 | Partial capture |
| 10-09 17:53 | 80m | -3 / +4 | UA3QGT | +10 / +5 | 6 | ✓ Full exchange observed |
| 10-09 16:30 | 40m | -8 / - | LZ936BA | - / - | 2 | Partial capture |
| 10-09 15:13 | 40m | -12 / - | UA1ALY | - / - | 2 | Partial capture |
| 10-09 03:50 | 40m | -18 / - | HB9SPACE | - / -5 | 2 | Partial capture |
| 10-08 18:07 | 40m | -9 / -4 | R6AEB | -8 / -7 | 5 | ✓ Full exchange observed |
| 10-08 17:48 | 80m | - / -12 | RT7B | -13 / - | 2 | ✓ Closing fragment |
| 10-08 17:42 | 160m | - / -12 | R3BHK | -9 / - | 3 | Partial capture |
| 10-08 17:38 | 160m | - / - | RA5AD | +4 / - | 3 | ✓ Closing fragment |
| 10-08 16:59 | 80m | -11 / -6 | EW7LZ | +9 / - | 4 | ✓ Closing observed |
| 10-08 16:52 | 80m | -16 / - | R4DB | -16 / +10 | 4 | ✓ Full exchange observed |
| 10-08 15:58 | 40m | -10 / - | UB6HWF | -16 / +2 | 3 | ✓ Closing observed |
| 10-08 15:28 | 40m | -10 / - | UB8SII | - / -1 | 2 | Partial capture |
| 10-07 17:38 | 80m | - / -4 | R3PLA | -10 / - | 3 | ✓ Closing fragment |
| 10-07 17:35 | 80m | - / -9 | RA3DAD | -6 / - | 2 | ✓ Closing fragment |
| 10-07 17:34 | 80m | - / - | R1TET | -14 / - | 2 | ✓ Closing fragment |
| 10-07 17:29 | 80m | -4 / -7 | RA5AK | -3 / -1 | 3 | ✓ Full exchange observed |
| 10-07 17:15 | 80m | - / - | R3LCG | +1 / - | 2 | Partial capture |
| 10-07 17:10 | 80m | -15 / - | RA1TR | - / -4 | 2 | ✓ Closing fragment |
| 10-07 17:09 | 80m | -16 / - | UA9XL/M | - / -13 | 2 | Partial capture |
| 10-07 17:05 | 80m | - / - | ES2AJ | +16 / - | 2 | ✓ Closing fragment |
| 10-07 15:58 | 40m | - / -13 | R3LCG | -6 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 141530 -18 1194 RW9WU RA4CGX 73 161645 -12 1514 RA4CGX R2BJZ -05 (x2) 161830 -7 1674 UA1AQC RA4CGX LO21 (x3) 175115 -16 1681 R5AV RA4CGX LO21 (x3) 175415 -7 2787 SU8JOTA RA4CGX LO21 (x3) 175715 -10 2787 PA1EDL/J RA4CGX R-15 044500 -9 920 RV7KA RA4CGX LO21 (x2)
UTC dB Audio Message 174630 +0 840 RA4CGX RW3VR R+02 (x2) 163415 -14 1401 R1BLO/P RA4CGX LO21 (x3) 170930 +0 1582 RA4CGX R6AR -02 171115 -12 1147 R9CS/P RA4CGX LO21 171630 -4 1157 R2ZAA RA4CGX LO21 171645 -5 1156 RA4CGX R2ZAA +17 171700 -7 1156 R2ZAA RA4CGX R+00 171715 -7 1155 RA4CGX R2ZAA RR73 171800 -6 1702 UN7LAN RA4CGX +01 (x3) 191730 -7 824 R2BPS RA4CGX R-12
UTC dB Audio Message 220545 -11 2055 RA4CGX R5BM RR73 220615 +0 832 RA4CGX RM5F KO85 (x3) 172900 -12 1174 RA4CGX R3DAJ -19 (x2) 184445 -17 978 RA4CGX RU3OW RR73 210730 -18 1067 RA4CGX RI1FJZ -12 (x2) 173845 +5 1042 RA4CGX RA5AD RR73 (x3) 174215 -11 1460 RA4CGX R3BHK -12 (x3)
UTC dB Audio Message 041130 -4 2169 N2SU RA4CGX LO21 (x2) 041315 +1 530 KJ5PTH RA4CGX LO21 (x3) 044330 +0 1687 RA4CGX RM8L R-09 (x2) 052630 +4 2090 RM6OG RA4CGX LO21 052900 -3 1507 R8AFR RA4CGX LO21 033700 -8 2640 RI1ANC RA4CGX LO21 (x6)
UTC dB Audio Message 074100 -7 1456 RA4CGX RA6ZC -11 (x3)
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.
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