RA3DNC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RA3DNC, decoded by SO8OO in southeastern Poland. 33 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-29 and 2026-09-19.
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 33 FT8 messages attributed to RA3DNC as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (48%), followed by 40 m (24%) and 20 m (21%). Several six-hour UTC windows tied for the largest share (73%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.
Overview
Bands
Last attributed message: 2026-09-19 17:46 UTC
Observed FT8 message patterns
- Attributed sample
- 33 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -15 dB
- Estimated 10th-90th percentile
- -22 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 8.
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 RA3DNC 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 RA3DNC
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
- KO94 · 23 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,273 km (approx.)
- Last such locator decoded
- 2026-09-19 17:46 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 | RA3DNC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-19 17:34 | 80m | -16 / - | RI1FJZ | - / -24 | 4 | Partial capture |
| 09-19 00:18 | 160m | - / +3 | UA4CKN | -12 / - | 3 | Partial capture |
| 09-19 00:17 | 160m | +14 / - | RI1FJZ | - / -20 | 2 | ✓ Closing fragment |
| 09-15 16:40 | 40m | - / -13 | UD8D | -10 / - | 2 | ✓ Closing fragment |
| 08-20 20:02 | 80m | -24 / -10 | R5VCR | -14 / - | 3 | ✓ Closing observed |
| 08-09 20:22 | 40m | -14 / - | EI5LK | - / - | 2 | Partial capture |
| 08-07 20:54 | 40m | - / +1 | R2EN | -13 / - | 2 | Partial capture |
| 08-07 20:50 | 40m | -18 / - | TJ1GD/P | - / -16 | 6 | Partial capture |
| 07-31 20:51 | 80m | -19 / -3 | RM5F | +5 / -4 | 4 | ✓ Full exchange observed |
| 07-31 20:48 | 80m | -19 / -11 | RN3DDW/P | -10 / -19 | 8 | ✓ Full exchange observed |
| 06-29 14:01 | 20m | -6 / 0 | EA3BIC | -11 / -4 | 4 | ✓ Full exchange observed |
| 06-29 13:58 | 20m | -10 / - | EH5WWA | - / - | 5 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 205130 -15 1980 RN3DDW/P RA3DNC 73 205145 +3 855 RA3DNC RM5F KO85 205200 -19 1980 RM5F RA3DNC -04 205215 +6 855 RA3DNC RM5F R-03 (x2) 200200 -24 1526 R5VCR RA3DNC KO94 200245 -15 1455 RA3DNC R5VCR -10 (x2) 184245 -3 400 RI1FJL RA3DNC KO94 173415 -14 1342 RI1FJZ RA3DNC KO94 (x6)
UTC dB Audio Message 001715 +11 904 RI1FJZ RA3DNC -20 (x2) 001800 -7 1105 RA3DNC RM5F KO85 001830 -10 651 RA3DNC UA4CKN +03 (x3)
UTC dB Audio Message 205045 -19 1420 TJ1GD/P RA3DNC KO94 (x5) 205300 -15 1892 RA3DNC RK3DWA/3 -12 205315 -18 1420 TJ1GD/P RA3DNC R-16 205400 -13 1756 RA3DNC R2EN +01 (x2) 202245 -15 1902 EI5LK RA3DNC KO94 (x2) 164015 -9 1413 RA3DNC UD8D -13 (x2)
UTC dB Audio Message 135845 -13 1258 EH5WWA RA3DNC KO94 (x5) 140145 -6 1258 EA3BIC RA3DNC -04 140200 -11 771 RA3DNC EA3BIC R+00 140215 -5 1258 EA3BIC RA3DNC RR73 140230 -11 770 RA3DNC EA3BIC 73
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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