RO5A — 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 RO5A, decoded by SO8OO in southeastern Poland. 1,265 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 90 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-05.
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 1,265 FT8 messages attributed to RO5A as the transmitting token by decoded message structure across 90 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (50%), followed by 80 m (44%) and 20 m (6%). Most decodes (55%) fell within the six-hour window 11:00-17:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7.5 dB.
Overview
Bands
Last attributed message: 2026-11-05 04:50 UTC
Observed FT8 message patterns
- Attributed sample
- 1,265 messages
- Active dates
- 90 UTC dates
- Estimated median S/N
- -7.5 dB
- Estimated 10th-90th percentile
- -17 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 180, moderate (-15 to -9 dB) 391, strong (≥ -8 dB) 694.
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 RO5A 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 RO5A
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
- KO85 · 380 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,193 km (approx.)
- Last such locator decoded
- 2026-11-05 04:36 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 | RO5A S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-05 04:36 | 80m | -6 / - | VE3DZ | - / -15 | 2 | Partial capture |
| 11-04 14:50 | 80m | - / +2 | RL3QGD | -18 / - | 3 | ✓ Closing fragment |
| 11-04 04:36 | 80m | -3 / +2 | R2SDZ | +1 / - | 3 | ✓ Closing observed |
| 11-04 04:34 | 80m | +2 / - | RK6OZ | - / - | 2 | Partial capture |
| 11-04 04:31 | 80m | -2 / - | R4CAS | - / -18 | 2 | ✓ Closing fragment |
| 11-04 04:30 | 80m | - / - | YO3GNF | -5 / - | 3 | Partial capture |
| 11-04 04:29 | 80m | -2 / +3 | RK3AW/P | -4 / +9 | 5 | ✓ Full exchange observed |
| 11-03 15:04 | 80m | -11 / - | RA3LBK | -5 / - | 4 | ✓ Full exchange observed |
| 11-03 15:03 | 80m | -2 / +5 | RA1QCZ | -19 / +1 | 5 | ✓ Full exchange observed |
| 11-03 14:55 | 80m | -11 / - | RW3O | - / -5 | 2 | ✓ Closing fragment |
| 11-03 14:52 | 80m | -8 / - | UA0YDB | - / -12 | 4 | Partial capture |
| 11-03 04:57 | 80m | - / -16 | F1TFT | -2 / - | 3 | Partial capture |
| 11-03 04:50 | 80m | 0 / +5 | UA3GIE | 0 / - | 4 | ✓ Full exchange observed |
| 11-02 15:21 | 80m | -8 / -3 | UC1C | -8 / -2 | 3 | ✓ Full exchange observed |
| 11-02 04:18 | 80m | +6 / - | UA3LRN | -9 / -10 | 3 | ✓ Closing observed |
| 11-01 04:36 | 80m | -4 / -2 | R3MDH | -5 / -8 | 4 | ✓ Full exchange observed |
| 11-01 04:33 | 80m | -3 / - | RU4CK | - / -1 | 2 | ✓ Closing fragment |
| 11-01 04:28 | 80m | +2 / - | R3PMV | - / +5 | 3 | ✓ Closing fragment |
| 11-01 04:26 | 80m | +2 / +1 | R2SN | -8 / -3 | 4 | ✓ Full exchange observed |
| 11-01 04:25 | 80m | +6 / - | UA3RBM | -8 / +7 | 4 | ✓ Full exchange observed |
| 11-01 04:24 | 80m | -2 / - | RX3MX | - / +4 | 2 | Partial capture |
| 11-01 04:05 | 80m | -6 / - | ZZ5UNO | 0 / -10 | 8 | ✓ Closing observed |
| 11-01 04:04 | 80m | -9 / - | CU2DX | - / - | 2 | ✓ Closing fragment |
| 10-31 15:01 | 80m | +2 / +2 | R3QX | -20 / -3 | 4 | ✓ Full exchange observed |
| 10-31 14:56 | 80m | +1 / +5 | RU3VT | -6 / - | 3 | ✓ Closing observed |
| 10-31 04:57 | 40m | -18 / - | R4IK | - / - | 2 | Partial capture |
| 10-31 04:21 | 80m | -2 / +7 | RA4FP | -8 / +8 | 4 | ✓ Full exchange observed |
| 10-31 04:18 | 80m | -1 / - | R3RAQ | -13 / +2 | 4 | ✓ Closing observed |
| 10-31 04:16 | 80m | -6 / - | RL6ZK | - / +6 | 2 | ✓ Closing fragment |
| 10-31 04:00 | 80m | -3 / - | EB3JT | - / -25 | 3 | Partial capture |
| 10-31 03:58 | 80m | +2 / -6 | DL9KM | -4 / -25 | 7 | ✓ Full exchange observed |
| 10-31 03:56 | 80m | -10 / -13 | HB9EOT | -1 / -15 | 6 | ✓ Full exchange observed |
| 10-30 15:28 | 80m | -3 / - | RA9YJU | - / -13 | 2 | ✓ Closing fragment |
| 10-30 15:17 | 80m | -10 / -1 | RC1BQ | -3 / -3 | 4 | ✓ Full exchange observed |
| 10-30 15:13 | 80m | -6 / - | R4DB | -14 / -2 | 6 | ✓ Full exchange observed |
| 10-30 15:11 | 80m | -15 / -11 | R3PBA | -7 / +9 | 4 | ✓ Full exchange observed |
| 10-30 15:06 | 80m | -11 / +10 | R3MDJ | -14 / -2 | 5 | ✓ Full exchange observed |
| 10-30 15:03 | 80m | -12 / -15 | UA4WJ | -18 / +2 | 4 | ✓ Full exchange observed |
| 10-30 14:51 | 40m | -10 / -1 | R4PIN | -22 / -12 | 3 | ✓ Full exchange observed |
| 10-29 15:27 | 80m | -7 / - | R1NI | -20 / +2 | 7 | ✓ Full exchange observed |
| 10-29 15:23 | 80m | -11 / - | RL6ZK | -11 / 0 | 5 | ✓ Closing observed |
| 10-29 15:17 | 80m | -16 / - | JN1JFC | - / - | 2 | Partial capture |
| 10-29 15:17 | 80m | -6 / +1 | RL6ZK | -9 / +4 | 2 | Partial capture |
| 10-29 15:15 | 80m | -17 / - | R3KKG | - / - | 3 | ✓ Closing fragment |
| 10-29 15:14 | 80m | -11 / 0 | RY7F | -10 / -2 | 5 | ✓ Full exchange observed |
| 10-29 15:12 | 80m | -15 / -1 | LY3BFH | +2 / -6 | 4 | ✓ Full exchange observed |
| 10-29 15:11 | 80m | -10 / - | RU4D | - / -15 | 3 | ✓ Closing fragment |
| 10-29 13:32 | 40m | -21 / - | DS5TOS | - / -7 | 2 | ✓ Closing fragment |
| 10-29 04:11 | 40m | - / -10 | RZ6L | +10 / - | 2 | ✓ Closing fragment |
| 10-29 04:07 | 80m | -4 / - | EW4DX | - / -12 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 145200 -9 806 R4PIN RO5A R-12 (x2) 145415 -24 1431 UA9ZZ RO5A -19 042715 -19 1725 RO5A TC0TR -15 044045 -19 234 RO5A RD3FY KO85 045730 -18 1203 R4IK RO5A KO85 (x2) 050630 -17 2066 PF40EUDXF RO5A -07 051815 -21 1318 R4SF RO5A RR73 045345 -16 980 IZ8EYN RO5A R-15 045530 -4 980 RK6OZ RO5A +10 (x2) 050415 -16 1775 ZZ5UNO RO5A -13 051500 -14 915 RV6HAF RO5A RR73 045015 -17 1351 TC8TR RO5A -15
UTC dB Audio Message 043115 -3 2823 RO5A YO3GNF KN34 043130 -1 847 R4CAS RO5A R-18 043145 -6 2823 RO5A YO3GNF KN34 043200 -3 846 R4CAS RO5A 73 043400 +5 846 RK6OZ RO5A KO85 (x2) 043630 +1 2024 RO5A R2SDZ R+02 043645 -3 846 R2SDZ RO5A RR73 043700 +1 2024 RO5A R2SDZ 73 145030 -19 1502 RO5A RL3QGD KO91 (x3) 043600 -4 1503 VE3DZ RO5A KO85 (x3)
UTC dB Audio Message 041100 +12 679 RO5A 9A4ZM JN86 (x2)
UTC dB Audio Message 125730 -10 2560 R6OAG RO5A 73 112830 -18 2286 R9JAU RO5A KO85 (x2) 131800 +3 1157 RO5A R6AAU -14 131815 -16 1159 R6AAU RO5A R-15 131830 +1 1156 RO5A R6AAU R-14 131845 -14 1157 R6AAU RO5A RR73 131900 +2 1155 RO5A R6AAU R-14 131900 -4 929 RO5A IU8WRA JM89 (x4) 134845 +15 2554 RO5A RG5A KN93 (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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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