ON4RF — 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 ON4RF, decoded by SO8OO in southeastern Poland. 94 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-10-25 and 2026-10-27.
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 94 FT8 messages attributed to ON4RF as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (96%), followed by 80 m (4%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (85%); the estimated median was -1 dB.
Overview
Bands
Last attributed message: 2026-10-27 18:45 UTC
Observed FT8 message patterns
- Attributed sample
- 94 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -1 dB
- Estimated 10th-90th percentile
- -11 to +6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 80.
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 ON4RF 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 ON4RF
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
- JO11 · 34 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,331 km (approx.)
- Last such locator decoded
- 2026-10-27 18:45 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 | ON4RF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-27 18:44 | 40m | -12 / - | TF1EIN | - / - | 4 | Partial capture |
| 10-27 18:43 | 40m | 0 / - | SP3MSM | - / -9 | 2 | ✓ Closing fragment |
| 10-27 18:42 | 40m | - / -9 | DK7ZT | -5 / - | 3 | Partial capture |
| 10-27 18:40 | 40m | -2 / - | SP0LPR | - / -11 | 2 | ✓ Closing fragment |
| 10-27 18:38 | 40m | -10 / - | U1BD | - / +2 | 2 | ✓ Closing fragment |
| 10-27 18:35 | 40m | - / -6 | R1BEO | -5 / - | 2 | ✓ Closing fragment |
| 10-27 18:34 | 40m | - / - | F4MGP | -12 / - | 2 | Partial capture |
| 10-27 18:33 | 40m | +6 / - | EA2CD | - / -11 | 2 | Partial capture |
| 10-27 18:31 | 40m | +4 / -15 | RX3ASQ | -14 / -9 | 5 | ✓ Full exchange observed |
| 10-27 18:28 | 40m | +10 / -5 | ON5EL | -9 / -18 | 6 | ✓ Full exchange observed |
| 10-27 18:28 | 40m | +2 / 0 | R2AL | -4 / +5 | 5 | ✓ Full exchange observed |
| 10-27 18:26 | 40m | 0 / - | EA4HTI | - / -12 | 3 | ✓ Closing fragment |
| 10-27 18:22 | 40m | -6 / - | RN6MA | - / -13 | 4 | ✓ Closing fragment |
| 10-27 18:22 | 40m | 0 / -4 | YL2KF | 0 / -2 | 5 | ✓ Full exchange observed |
| 10-27 18:18 | 40m | 0 / -19 | DL3MIB | +6 / -19 | 12 | Partial capture |
| 10-26 19:13 | 40m | +1 / -12 | LZ2FP | -15 / -19 | 6 | ✓ Full exchange observed |
| 10-26 19:10 | 40m | +8 / - | VK2WN | - / -21 | 4 | ✓ Closing fragment |
| 10-26 19:08 | 40m | +3 / - | BG8KUB | - / - | 4 | Partial capture |
| 10-26 18:19 | 80m | -14 / -22 | RW3QW | -12 / -20 | 6 | ✓ Full exchange observed |
| 10-26 18:19 | 80m | - / - | SP9UPH | +12 / - | 2 | Partial capture |
| 10-26 18:19 | 80m | - / - | PE1NPS | -12 / - | 3 | Partial capture |
| 10-26 18:18 | 40m | - / - | CT1BFP | -21 / - | 4 | Partial capture |
| 10-26 18:13 | 40m | -3 / - | 9A1CCB | - / - | 2 | ✓ Closing fragment |
| 10-26 18:10 | 40m | 0 / - | EA4GA | - / -21 | 2 | ✓ Closing fragment |
| 10-26 18:09 | 40m | - / - | R6DVV | -12 / - | 2 | Partial capture |
| 10-26 18:09 | 40m | - / -9 | DK7ZT | -1 / - | 4 | Partial capture |
| 10-26 18:08 | 40m | - / - | U1BD | -17 / - | 2 | Partial capture |
| 10-26 18:08 | 40m | +4 / -9 | RZ4FWA | -12 / -13 | 5 | ✓ Full exchange observed |
| 10-26 18:07 | 40m | - / - | RW3DDZ | -15 / - | 3 | Partial capture |
| 10-26 18:05 | 40m | +2 / - | YO6LM | - / -16 | 2 | ✓ Closing fragment |
| 10-26 18:04 | 40m | -4 / - | SP7TF | - / -9 | 2 | ✓ Closing fragment |
| 10-26 18:03 | 40m | - / - | DL3MIB | -11 / - | 5 | Partial capture |
| 10-26 17:56 | 40m | 0 / - | LY5J | - / -5 | 2 | Partial capture |
| 10-26 17:55 | 40m | - / - | R3DHP | -2 / - | 2 | Partial capture |
| 10-26 17:53 | 40m | -4 / - | 9A4AA | - / -13 | 4 | ✓ Closing fragment |
| 10-25 17:37 | 40m | - / -5 | DH1NGL | -4 / - | 4 | Partial capture |
| 10-25 17:37 | 40m | -9 / - | UA3SCU | -11 / -9 | 5 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 183900 -15 1833 U1BD ON4RF RR73 184030 +0 780 SP0LPR ON4RF -11 (x2) 184130 -10 780 CQ ON4RF JO11 (x2) 184215 -4 1907 ON4RF DK7ZT -09 184230 -6 2693 CQ ON4RF JO11 184245 -5 1907 ON4RF DK7ZT -09 184300 -1 2693 SP3MSM ON4RF -09 184315 -6 1907 ON4RF DK7ZT -09 184330 +2 2693 SP3MSM ON4RF RR73 184400 -13 1261 TF1EIN ON4RF JO11 (x4)
UTC dB Audio Message 181900 -10 1095 CQ ON4RF JO11 181915 -13 2459 ON4RF PE1NPS JO22 181915 -10 2176 ON4RF IQ4JO JN63 181930 -11 1095 CQ ON4RF JO11 181945 +15 2394 ON4RF SP9UPH JO90 181945 -14 1106 ON4RF RW3QW -22 181945 -13 2459 ON4RF PE1NPS JO22 182000 -18 1095 RW3QW ON4RF R-20 182015 -17 1106 ON4RF RW3QW RR73 182015 -11 2459 ON4RF PE1NPS JO22 182030 -11 1095 RW3QW ON4RF R-20 182045 -10 1106 ON4RF RW3QW RR73 182115 +9 2370 ON4RF SP9UPH JO90 182115 -5 1106 ON4RF RW3QW RR73
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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